2013年初一升初二综合训练资料
Unit 1 Can you play the guitar?
一．重点短语
1. play the guitar / piano / violin/drums
2. be good at = do well in
3. tell stories
4. be good with = be friendly with
5.help sb. With (doing) sth.= help sb do sth
6. at the old people’s home
7. make friends with sb.
8. teach sb.
to do sth.
9. on the weekend/ on weekends 10. make sb. do sth. 11. speak
English
12.talk to / with sb. 13.join sb join sb. in sth. join the are club
14.tell sb. about sth tell sb. not to do sth.
二．重点句型。
1.– What club do you want to join? -- I want to join the basketball club.
2.Can you speak English?
3. Tom can play the guitar but he can’t play it very
well.
4. Come and show us!
5. Victor can’t sing or dance.
三．语法讲解
情态动词can 的用法
1. 表示能力：Can you play the piano?
2. 表示请求或允许，可以：You can’t play basketball. Can you help me, please.
3. 表示可能：He can be at home now. The moon can’t always be full.
4. 表示怀疑：Can it be true?
四．基础训练
I.根据句意及首字母或汉语提示补全单词。
1. Can you ________ stories?
2. Jim can’t t_________English stories.
3. Kate wants to join the music club for the school __________(演出)
4. Bill can’t sing _________(或者) dance.
5. I want to t________ to Mr Wang.
6. Ma Huan likes to talk to p_________(人们)。
7. He often helps with sports for the English- speaking students in the Students’Sports C________.
8. Let’s go to see the old people at the old people’s h ________.
9. What do you usually do on the ___________(周末)。
10. Miss Wu _________(教) us music.
II. 用所给词的适当形式填空。
1.Do you want to join the ___________(swim) club?
2.2. Can Mary and Alice _________(play) computer games、
https://www.doczj.com/doc/419751751.html,e and _________(join) the art club.
4. 4. She wants ________(dance) with her friends.
5.Thanks for _________(help) me.
6.6. What club do you want ________(join)?
7.Bob ________(like) the English club, so he joins it.
8.8. She ________(speak) English very well.
9.What club does Tom __________(want) to join?
10. Can you _____________(swim)?
III. 根据括号内的要求完成下列各句，每空一词。
1.I can speak Chinese well. (改为一般疑问句) ________ _________ speak Chinese well?
2.Mary can play the piano.(改为否定句) Mary _______ _______ the piano.
3.– Can Jack and his brother play soccer? – No, ________ _________.
4.My sister can tell stories. (对画线部分提问) ________ _______ your sister _________?
5.I can play basketball. (用soccer改为选择疑问句) _______ ______ play basketball
_______ soccer?
6.She wants to join the art club. ( 对画线部分提问) ________ ______ ______ she want
to join?
7.He often helps me learn English.(改为同义句) He often helps me ______ ______
______.
IV. 单项选择。
( ) 1. – Can you play ______ chess? – Yes , I can . A. a B. an C. the D./
( ) 2. Little Tom can draw __. His drawings are very ___.A. good, well B. well , good C. good, good D. well , well
( ) 3. – Can you _____ Japanese? -- A little. A. speak B. say C. talk D. tell
( ) 4. Do you want ______ the English club? A. join B. to join C. in D. be
( ) 5. – What can you do, Jeff? -- _______.
A.I like sports
B. I want to join the music clun
C. I am well
D. I can do kung fu.
( ) 6. – Hi, Can I help you? -- _____. A。Yes, please. B. No, I can’t. C. Yes, I can. D.
You ar welcome.
( ) 7.Please call me ____ 768-9168. A. at B. on C. in
( ) 8. Miss Read is good _____ music. And she can be good ______ children in the music club.
A. at, at
B.with, at
C. at, with
( ) 9. -- ____ does he sister want to join? – Swimming club. A. How club B. What club
C. How old
( ) 10. He often ____ us many funny stories. A. says B. tell C. tells D. speaks
Unit 2 What time do you go to school?
一．重点短语。
1. go to school
2. get up
3. take a shower 4 . brush teeth
5. get to
6. do homework
7. go to work
8. go home
9. get dressed 10. get home 11. either … or …12. go to bed
13. take a walk 14. lots of 15. be late for
二．重点句型。
1.– What time to do you usually get up, Rick? – I usually get up at six thirty.
2.– What time does Rick eat breakfast? -- He eats breakfast at seven o’clock.
3.I’m never late for work.
4.It’s not good for her, but it tasts good!
三．语法讲解
询问时间用what time(指具体时刻) 或when（指具体时刻或时间段）.
四．基础训练
I.用所给单词的适当形式填空。
1. Who _________(help) you with your English?
2. My brother often ________ (study)
with me.
3. What _______ your brother ________(do ) in the evening?
4. ______ your father _____(help) your mother do the housework at home?
5. I want _________(visit) my grandfather and grandmother tomorrow.
6. How long can she ________(stay) at home?
7. She usually _______(go) shopping with her parents at the weekend.
8. My sister _________(not like) reading books.
9. How _________(many) time does it take you to go to school?
10. He never _________(go ) to bed before twelve.
II. 单项选择。
( ) 1. The boy often goes to school ______ 7 o’clock ______ the morning. A. at; in B. in; at
C. on; in
D. at; on
( ) 2. _____ does the girl usually get up? A. What time B. How C. How much D.
How old
( ) 3. – Is your father at home? -- No. He’s working ______ radion station. A. at B. on
C. of
D. to
( ) 4. He often plays basketball _______5:00 p.m. A. at B. in C. for D. on
( ) 5. Tom usually gets ______ at 7:10 in the morning. A. dress B. dressed C. dressing
D. dresses
( ) 6. Bob _______ a shower every morning. A. take B. takes C. bring D. brings
( ) 7. Scott has an interesting _____. He _______ at a radion station.
A. work ; works
B. job; works
C. job; jobs
D.work ; job
( ) 8. What time _______ she _______?
A.do ; eats breakfast
B. does; eats breakfast
C. does; eat the breakfast
D. does; eat
breakfast
( ) 9. I usually go to ______ school after _____ breakfast. A. the; / B. /; the C. /; / D. the; the
( )10. Alice usually gets up late in the mornin, so she doesn’t have _______ time for breakfast.
A. more
B. much
C. less
D. little
( ) 11. He doesn’t like eat ______, it’s too sweet. A. food B. vegetables C. ice—cream D. apples
( )12.Early to bed and early to raise(起床) is _____ our health. A. good for B. bad for C. good in D. bad in
Unit 3 How do you get to school?
一．重点短语
1. take the train/ bus/ subway/ car / plane
2. ride a bike
3. think of
4. between … an…
5. leave school
6. leave home
7. come true
8. be afraid of sth./sb/ be afraid of doing sth.== be afraid to do sth.
9. hundreds of 10. live a happy life 11. stop dong
stop to do
二．重点句型
1.– How do you get to school? -- I ride my bike.
2.– How long does it take to get to school? – It takes about 10 minutes.
3.– How far is it from your home to school? – It’s about two kilometers.
4.Mary wants to know what he thinks of the trip.
5.Can their dream come true?
三．语法解析
如何表示交通方式
1.by + 交通工具名词by bus / bike / train / taxi / plane
2.by + 交通路线的位置by water (从水路) by land ( 从陆路) by air ( 乘飞机)
3.on + 限定词+ 交通工具名词on a/the bus / train / bike / boat （多用于开放式或半
封闭式）
4.in + 限定词+ 交通工具名in a/the car / taxi (多用于封闭式的)
5.take + a/the + 交通工具名
6.步行去某地go to + 某地+ on foot == walk to +某地
7.动词+ to + 地点名词walk ride drive fly
四．基础训练
I.用所给词的适当形式填空。
1. I don’t know where she ______(live).
2. How do you usually get to your _______(grandparent) home?
3. They always stop ________(talk) when the teacher comes into the classroom.
4. It takes me an hour ______(finish) my homework every day.
5. She thinks of _______(visit) the Great Wall.
6. Jim often helps old people _________(across) the street.
7. There are many _______(boat) on the river.
8. A lot of ________(village) are working. 9. Are you afraid of ______(take) a plane?
10. Thank you for ________(help) me.
II. 根据汉语提示完成句子。
1.她经常步行上班。She often ________ ________ ________.
2.我想知道你对交通工具的看法。I want to know what you ______ _______ the
transportation.
3.他住得离学校远。He lives _______ _________ the school.
4.我喜欢坐地铁。I like _______ ________ ________.
5.从你家到火车站有多远啊？_______ ________ is it _______ your home _______ the
train station?
6.步行到达公园要花费我二十五分钟。It _______ me about 25 minutes _______
________ to the park.
7.他住得离学校有四千米远。He ______ four _______ from school.
8.格林先生每天骑车去上班。Mr Green _____ _______ ________ every day.
9.步行去人民公园要花费多长时间？_______ ________ ______ it take you to go to
Renmin Park_____ ____?
10.你家离图书馆有多远？________ _______ do you ________ from the library?
III.单项选择。
1.–How far is it from your home to school? – About ____walk. A. How far B. How long
C. How
D. How many
2.– What’s the time, please? It’s about _______. A. thirty-five minutes to eleven. B. twenty
past eleven
C. eleven to fifteen
D. twenty passes eleven
3.The bus ride usually _______ about half an hour. A cost B. spends C. takes D. has
4.He walks ______ the subway station and takes the subway. A. on B. for C. to D. in
5.Mr Wang is leaving _______ Guangzhou next week. A. to B. with C. in D. for
6.It will take the men half a year ______ the work. A. finish B. finishing C. to finish
D. finishes
7.How long does it ______? A. spend B. take C. cost D. pay
8.Tom can play the guitar, _______ he can’t play it ______. A. or; good B. and; well C.
but; good D. but; well
9.Ann’s home is about ten kilometers ______ school. A. away B. to C. away from D.
far from
10.About two __ students take buses’to school in the town. A. hundred B. hundreds C.
hundreds of D. hundred of
11.Do you want to go there _____ or by ship? A. for the plane B. on plane C. by the plane
D. by plane
Unit 4 Don’t eat in class.
一．重点短语
1. in class
2. in the class
3. run in the hallways
4. break the rules
5. make the rules
6. what else
7. fight with sb.
8. school nights
9. have to do sth 10. think of / about sth. 11. do the dishes 12. sports shoes 13. by ten o’clock 14. talk loudly 15. order sb. to do sth 16. remember doing sth. remember to do sth 17. be strict in sth 1 8. be strict with sb. 19. learn to do sth
二．重点句子
1.Don’t run in the hallways.
2.We can’t arrive late for calss. == We can’t be late for class.
3.I have too many rules in my home.
4.I never have any fun.
5.You must wear sports shoes for gym class.
6.Don’t leave the dirty dishes in the kitchen.
三．语法讲解:祈使句的运用。
I.定义
II. 祈使句的句式结构
1.Please + 动词原形+ 其他。Please stand up. Please don’t stand up.
2.动词原形+其他。Put away your things. Don’t talk in class.
3.Let + 宾语+ 动词原形+ 其他Let me help you. Don’t let her go.
4.Be + 表语Be careful! Don’t be late for class!
5.No + 名词/动名词No smoking!
四．基础训练。
I.用单词的适当形式填空。
1. ― Please be quiet. No ______(talk)!‖said our teacher.
2. Can you help me _______(clean) the
classroom?
3. Let’s _____(meet) at the park gate.
4. The kids had fun ______(swim) yesterday.
5. He is speaking _______(loud) to let his grandma hear him.
6. How many ______(country) joined WTO?
7. _______(not work) too late at night. It’s not good for your health.
8. Last week, I _____ (fight) with my good friend. 9. ________(is) quiet. Mr Wang is coming.
10. _______(read) in the sun is bad for your eyes.
II.用适当的介词或副词填空
1.– What does your mother look _______? -- She is tall and thin.
2.I have a friend ______ Class Seven. She’s ______ Japan.
3.Bill is a boy _______ short hair.
4. We can’t eat ______ class.
4.I like listening _____ music.
III. 单项选择。
( ) 1. Don’t ______ late for school. A. is B. be C. was D. were
( ) 2. ______ call me Mimi ! It’s my cat’s name. A. Not B. Don’t C. Doesn’t D. Don’t ( ) 3. – Don’t play near the river, please. -- _______. A. Yes, I do B. Sorry, I won’t C. No, I don’t D. Not, at all
( ) 4. Please do n’t _____ about the flu(流感) Just make sure you wash your hands and do lots of exercise.
A. worry
B. to worrry
C. worried
D. worrrying
( ) 5. ______ forget to write to me when you _____ get there. A. Don’t ; will B. Please; will C. Please; / D. Don’t; /
( ) 6. ______ careful! A. be to B. Be C. Not D. Not do
( ) 7. Don’t ______ too much TV. It’s bad for your eyes. A. watch B. watched C. watching D. to watch
( ) 8. ______ play football on the street. It’s dangerous. A. Please B. Don’t C. Do D. Doesn’t
( ) 9. Tom，_______ the classroom right now. I t’s too dirty. A. clean B. to clean C. cleaning D. don’t clean
( ) 10. – Don’t play computer games on school nights, Li Peng! -- _____.
A.Yes, I do
B. Yes, I will
C. sorry, I won’t
D. Sorry, I don’t
( ) 11. – Kate, come and help me plant trees in the garden! -- ______.
A.No, I don’t
B. Sorry, I can’t. I have to do some reading.
C. Yes, but I have to go out
D. OK, I won’t
( ) 12. – Let’s go shopping together, Vickers.
A. Thank you
B. You’re welcome
C. That sounds good
D. No, you can’t
Unit 5 Why do you lik pandas?
一．重点短语
1. be friendly to sb.
2. a kind of
3. kind of = a little
4. make friends with sb.
5. an African country
6. eat too much meat
7. be/come from
8. get lost
9. all day
10. thing made of ivory 11. in (great) danger 12. cut down
二．重点句子
1. – Where are lions from? – They’re from south Arica.
2. People cut down many trees so elephants are losing their homes.
3. They can also remember places with food and water.
4. Why don’t you go to the zoo with us? = Why not go to the zoo with us?
三．语法讲解
I．形容词She is a beautiful girl. (作定语) The girl si beautiful. (作表语) We’ll do our best to make our city beautiful (作宾语补足语)
2. 特殊疑问句：疑问词+ 一般疑问句结构Who whom whose which what when where why how , how much , how many, how long, how soon, how often, how far
四．基础训练
I.用所给单词的适当形式填空。
1. Miss Green is very _______(friend) to us. We like her very much.
2. Let’s ______(save) the pandas.
3. ________ (lion) are from Africa.
4. People want to __________(will) elephants for their ivory.
5. We mustn’t ________(cut) down the young trees.
6. Jim wants _________(see) the tigers.
7. The pandas are ________(friend) and cute.
8. Let’s go to the dolpins _________(one).
9. My father is very busy. He only _________(relax) 5 hours every day.
10. Look! There are so many __________(box) on the floor.
II. 短文填空。
From, well, with, in, friendly, wants, old, smart
Look, this is Yuanyuan. He is dolphin. He si _______ the sea. He is two years_________. He can swim very _________. He likes to play _________ people. He is very ________ and ________. His home is in Atlantic Ocean(大西洋)。But now he is ________ the zoo. I think he ________ to go home.
Unit6 I’m watching TV.
一.重点短语
1. read newspapers and magazines
2. look at the picture
3. have a look n
4. go to the movies
5. do the /some cleaning
6. wait for
7. wait a t the bus stop 8. can’t wait to do sth 9. at the swimming pool
10. go shopping = do some shopping = shop 11.be sure to do sth 12. have some activities
13.miss one’s family 14. take a photo of sb. 15. talk on the phone
16. do some reading
二．重点句子
1. – What are you doing？-- I’m watching TV.
2. – Is he reading a newspaper? -- Yes, he is.
3. – What time is it in Beijing? -- It’s eight o’clock in the moring.
4. He misses his family and wishes to have his mom’s delicous zongzi.
三．语法讲解
现在进行时的运用
I.用法：表示说话时正在进行着的动作，于now, right now, at the moment , look , listen, 等连用
如：He is watching TV now
还可以表示目前一段时间内一直进行的动作。于these days, this week, at present 连用。
如：They are working on a farm these days.
表示现在不断发展变化的事情。表示渐变的动词有：get, grow, turn, become .如：The leaves are turning yellow.
现在进行时表将来，表位置移动的词：go, come, fly, arrive , leave 等如：I am arriving next week.
II.构成：be (am/is/are) + 动词-ing. 动词加-ing 的变化规则：work—working live—living stop—stopping die—dying
四.基础训练
I.用所给单词的适当形式填空。
1. Listen! Who __________(sing) in the room?
2. _______ you _______(do) your homework now?
3. They are playing football and he _______(run).
4. – Are you eating dinner at home? –Yes, I _____(be).
5.Jim,what ______you _______(do) in your room now?
6. Look! Some children _______(swim) in the swimming pool.
7.—What is your father doing? – He ______(clean) his car. 8. In the _____(one) picture, I am at the _____(swim) pool.
9. Jim often ________(play) basketball with his friends. 10. It 6:30 now, I _______(read) English.
11. _______(put) on your coat. It’s cold outside. 12. Listen! The girls _______(sing) in the room.
13. Look! The Greens _______(have) dinner! 14.Don’t talk to me! I _________(listen) to a nice song.
II. 单项选择。
1. – Who si playing chess in the classroom? – Tom______. A, is B are C. do D. does
2. –Mary likes __books. –Look, she __books. A. read; reading B. see; seeing C. reading; is reading D. seeing; is seeing.
3. There are three _______ in his family. A. child B. childs C. children D. childrens
4. – Shall we invite Tom to play football now?--oh, no. He __his clothes.A.is washingB. washesC. has washes D. is wash
5.What are they _____? A. talking B. talking about C. looking D. look
6.- Can yo answer the door Jim? I _______ the dishes. – I’m coming, dad. A. do B. did C. have done D. am doing
7. Let’s go ______ five o’clock. A. in B. at C. with D. on
8.—I t’s a fine day. Shall we go shopping？-- _______. Let’s go.
A. It’s boring
B. Of course, you will
C. That sounds good
D. No, thank you
9. Parents usually talk to the teachers ____ the phone. A. about B. in C. at D. on
10. He always _______ TV after work. A. watch B. is watching C. watches D. watching
11. Emma, here _______ some books for you. A. is B. are C. has D. have
12. ______ the second photo, I’m watching TV _______ home. A. On; at B. At; in C. In; at
D. On; in
Unit7 It’s raining!
一.重点短语
1. pretty good
2. have a good time = have fun = enjoy oneself
3. play basketball with some friends
4.be happy to see you
5. take a message for sb.
6. tell sb. to do sth.
7. call me back 8. no problem 9. do some/ the cooking
10.visit some of my old friends 11. in the summer of 2012 12. sit by the pool 13. on vacation 14. study hard 15.rain hard 16.go skating 17.in the rainy weather 18.go to summer school
19. skate on the river 20. make a snowman 21.good/bad weather
22. send short message to sb.
二.重点句子
1. – How’s the weather in Beijing? = What’ s the weather like in Beijing? – It’s snowing.
2. – How’s it going(with you)? – Not bad./ Great. / Terrible./ Pretty good. / Just so-so.
3. Can I take a message for him?
4. – Could you tell him to call me back? -- Sure, no problem.
5. I’m visiting some of my old friends.
6. I’m so happy to see them again.
7. Sounds like you’re having a good time.
8. Could you ask her to call me a t 8765-4321?
9. – May I speak to Lucy, please? – Speaking./ Sorry, she isn’t at home.
10. It’s rainy today, isn’t it? Yes, it is. Tom didn’t like vegetables, did he? Yes, he did . No, he didn’t.
三.语法讲解
天气的询问及应答。
1. – What’s the weather like today?= How’s the weather? – It’s cold / hot /warm/ cool/ dry/ wet. It’s cloudy/fine/ rainy/ snowy/ sunny/ windy. It’s raining/ snowing.
四.基础训练
I. 用所给单词的适当形式填空。
1. Could you take a message for ______(he)?
2. Look ! They ________(play) basketball over there.
3. There are many white _______(cloud) in the sky.
4. Mr Green is listening to music. He looks ________(relax).
5. – How is the weather today? – It is _______(wind).
6. Thank you for _______(join) our show.
7.It’s a beautiful ________(sun) day. 8. Look! The children _______(put) on their clothes.
9. I t’s 7:00 p.m. Tom’s family _______(have) dinner. 10. – where’s Miss Liu? – She ______(sit) in the office.
II. 单项选择。
1. -- _______ is the weather in Toronto? –It’s windy. A. How. B What C. Where D. Why
2.—How’s the weather there? -- _______. It’s raining hard. A. Great B. Terrible C. Pretty good D. Not bad
3.Look at the ____! It’s ____ heavily now. A. snow; snowing B. snowy; snow C. snowy; snowing D. snow; snowy
4.Is your father ______ the newspaper in the room? A. looking B. watching C. reading D. seeing
5.One of the students _______ from Paris with his parents. A. is B. am C. are D. be
6. The students _________ games after class . They _______ volleyball over there now.
A.play ; are playing
B. are playing; play
C. play; play
D. are playing; are playing
7. After class we usually play sports _______. A. for a hour B. for an hour C. at two hours
D. in an hour
8. Many people don’t like winter because they don’t like __. A. cold weather B. a cold weather C. cold day D. a cold day
9. -- ___? – Pretty good. A. How is it going B. How is the weather C. How is it like D. Do you like the weather.
10.You can tell my brother ____ to the park. A. goes B. going C. to go D. don’t go
11. It’s _______ today. I think it’s going to _____. A. cloud; rain B. cloudy; raining C. cloudy; rain D. cloudy; rainy
12.—His mother is ___. She is ___ now. A. cook; cooking B. cooker; cooking C. a cooker; cooking D. a cook; cooking
Unit8 Is there a post office near here?
一.重点短语
1. near. Around here
2. in the neighborhood
3. on Center Street
4. go straight
5. across from the post office
6. next to the post office
7. between her and me
8. in front of the hotel
9.in the front of the classroom 10. go through the park 11. go across the street = cross the strreet
12.behind the library 13.far away from the police station
14.. turn right at the second crossing == take the second turning on the right.
15.go down/along the street 16. enjoy reading in the library 17. have some free time on weekends
18. be good ayt running = do well in running 19. watch sb. do sth. 20.how to get to the post office
二.重点句子
1.—Is there a pay phone in the neighborhood? – Yes, there is.
2. It’s nor far from here. I can walk with you.
3. I love to watch the monkeys climbing around.
4. To get there, I usually walk out and turn right on Bridge Street.
5. I enjoy playing chess with my grandpa.
6. I t’s relaxing to spend weekends like this.
三.语法讲解
There be 句型：表示某地或某时有某人或某物。There + be (is/are ) + 某物/某人+ 某地/某时.
-- Is there any water here? – Yes，there is. No, there isn’t .
What’s (there) in your bag? – There is a pen and some books.
There are two boys and a teacher in the room. There is a teacher and two boys in the room.(就近原则)
There be 结构与have/has的区别：have/has 表示某地或某时存在有某人或某物如：Bill has a nice house.
五．基础训练
I.用be 动词、there be或have/ has 填空
1. ______ a tall building across from the park..
2. She _______ a pet dog called Lazy.
3. -- _______ any food in the fridge ( 冰箱)？-- No, there isn’t.
4. A year ______ twelve months
5. ________ any students in the school because today is Saturday.
6. There ______ no milk in the fridge.
7. _______ there any maps on the wall?
8. There _______some water and fruits on the table.
9. There ______ some apples and oranges in the basketall.
10.There _____ many people in the supermarket on Sundays.
II. 用单词的适当形式填空。
1. There ________(be) a police station by the river.
2. There aren’t _______(some) pay phones.
3. Is there a bank _________(nearly) your home?
4._______(thank) so much.
5. He spent his whole life ______(look) after his sister.
6. I enjoy _______(ride ) my bike on the farm road.
7. He’s free _____(go) shopping with you, Lisa. 8. When you ______(across) the road, you must look at the traffic lights.
9. If you work hard, you can pass the exam(考试) _______(easy).
III. 用适当的介词填空。
1. The Blue Sky Hotel is ________(Green Street)
2. The Children’s Hospital is ________here. It’s not far from here.
3. My cat is ______ the door. I can’t see it.
4. The bank is next ______ the police station and across ___ the park.
5. There’s a pay phone in front _______ the restaurant.
IV. 单项选择
1.I need some money ________ a new fridge. A. buy B. to buy C. buying D. bought
2.Did you enjoy ______ time with your friends? A. spend B. spending C. take D. taking
3.It’s relaxing ________ around the park in the morning. A. walk B. to walk C. walking
D. walked
4.I watch a police car ____ along Bridge Street. A. goes B. to going C. going D. to go
5.___the road and turn right. Then you can see the restaurant. A. Turn right B. Turn left C.
Go along D. Go straight
6.Mary is very _____ swimming. A. well in B. good at C. good to D. Go straight
7.– Where is the post office? – It’s not far _____ here. You can walk there. A. of B. from C.
at D. under
8.– Excuse me. Could you tell me _______? – Sorry. I’m new here. -- _____.
A. where is the nearest hospital; The same to you
B. where the nearest hospital is; Thank
you all the same
C. where was the nearest hospital; Thank you all the same
D. where the nearest hospital was;
Thank you
9.Harbin lies in the _______ of China. A. south B. north C. southern D,. west
10.The problem is _______ enough, and everyone can solve it ____.
A. easy; easily
B. easy; easy
C.easily; easily
D. easily; easy
11.There is so much _____ air and sunshine on the beach. A. clean B. cleaning C. cleaned
D. cleans
12.Look! There si a cat _______ the tree. A. is climbing B. climbing C. climb D. climbed
Unit9 What does and look like?
一.重点短语
1. look like
2. describe people’s looks
3. have long straight black hair
4. be of medium build / height
5. wear glasses
6. see you later
7. each student
8. wear jeans
9. another woman 10. in the end = at last 11. have a very interesting = have quite an interesting job
12. meet him in front of the cinema 13. draw a picture of the criminal
14. your favorite actor / actress / teacher 15. first of all = at first
二.重点句子
1.He isn’t tall or short. He’s of medium height.
2.– What does he look like? -- He is tall and thin with short hair.
3.Some people see crimes and talk to him.
4.They tell him what the criminal looks like,
5.The police put it in newspapers or on television to find him.
6.He wants to draw a good picture of each criminal.
7.Many people don’t always see things the same way so they may describe the same person
differently.
8.Yeah, but I may be a little late.
三.语法讲解
询问及描述外貌
1.询问某人外貌特征的常用句型
what do/ does + 主语+ look like? 回答时可用Sb. is / are + 形容词或Sb. have/has + 形容词+ 名词
2. 描述外貌常用的形容词：tall --- short medium thin—fat heavy medium short –long straight – curly
Blonde brown black gray
四.基础训练
I.用be 或have的正确形式填空
1. Lei Hao ________ short straight hair.
2. Dick ________ tall, but his sister _______ short.
3. Mr Kai ________ of medium build.
4. Betty’s mother _________ of medium build.
5. Du Ke _________ short and thin.
6. There ________ a dictionary on the sofa.
7. Tom _________ a great sports collection. 8. __________ a good time today.
9. _________ there any students in the room? 10. There _______ a pear, two apples and three hananas on the table.
II. 用所给单词的正确形式填空。
1. Tony is of medium_________(high).
2. Do they have _________( straightly ) hair or curly hairr?
3. Sometimes people may describe the same person ________(different)
4. In the end, the ______(really) criminal is a short and heavy old man.
5. Joe is a police _________(art).
6. what’s your ________ (friend) name?
7 Tom, don’t wear your old ________( jean) to the party.
8. What does your sister like _______( wear)?
9. Let me tell you what my mother ________(look) like.
10. In the end, the real _______(crime) was caught (被抓住)
III. 用another, other, the other, others, the others 填空
1.The work needs many people . There are fifty workers here, but we ennd _________(five
workers.
2.I have two uncles. One is a policeman, and ______ is a doctor.
3.I visited Bejing, Shanghai and Harbin last year. But I want to visit ________ cities of China.
4.It’s Tree Planting Day . Many people are on the hill(小山)。Some are digging holes; _______
are watering the trees.
5.There are 107 teachers in our school. Forty of them are men teachers; _______ are women
teachers.
IV. 单项选择。
1.The woman with ________ hair is my English teacher.
A. long blonde curly
B. long curly blonde
C. blonde curly long
D. curly long blonde
2.He has only ______ money. He can’t afford to buy a new house. A. a little B, a lot C.
lots of D. a little of
3.– Do you know ______ about Wuhan? -- The people and the food.
A. how Jack likes
B. what Jack likes
C. how does Jack like
D. what does Jack like
4.There are some ______ near the river. A. apples trees B. bananas trees C. apple tree D.
bananas tree
5.– Which is your teacher? – The one ________ thick glasses over his eyes is. A. wears B.
wear C. with D. has
6.My sister likes dressing ___and she likes to buy _clothes. A. well; well B. well; good C.
good; good D. good; well
7.– What does your uncle look like? -- _______.
A. He is thin
B. She is a kind girl
C. He likes music
D. She is good-looking.
Unit10 I’d like some noodles.
一.重点短语
1. would like to do sth == want to do feel like doing sth
2. one large bowl of beef soup
3. beef noodles 6. two bowls fo noodles
7. take one’s order 8. a bit/ medium/ small bowl of rice
9. what kind of noodles= beef and carrot noodles 10. some fish
11. around the world 12. the answer to the question answer the telephone answer the door answer one’s letter
13. different people / countries be different from be different in ( 在某方面不同)
14. at the age of 10 at your age ( 在你这种年龄) be of the same age （同龄）
15.blow out blow out the candles = blow the candles out = blow them out
16. good / bad luck bring good luck to sb 17. the bumber of the candles 18. have an idea have no idea
19. ( one’s wish ) come true 20. put a candle in a birthday cake
21. a symbol of long life 22. tomato and egg rice 23. make a wish
24. a number of the number of
二.重点句子
1. – What would you like? – I’d like some milk.
2. May I take your order? = May I have your order?
3. – What kind of noodles would you like? – Beef and tomato noodles.
4. – What size bowl of noodles would you like? – I’d like a large bowl.
5. – Would you like some beef? – Yes, please. / No, thanks.
6. – Would you like to have a party with me this evening ? – Yes, I’d love to. / No, thanks.
7. If he or she blows out all the candles in one go , the wish will come true.
8. In China, it is getting popular to have a birthday cake your birthday.
9. Many people still eat very long noodles for their birthdays.
10. We order mutton noodles, but there isn’t mutton in the noodles.
三.语法讲解
可数名词和不可数名词可数名词的复数变化规则
五.基础训练
I.用所给单词填空。
1. A large bowl of noodles ________(be) not enough.
2. We have some great ________(special ) today.
3. Can you make ______(dumpling)？
4. I know the two _______(woman) teachers.
5. He’d like ________(order) a large bowl of noodles.
6. This kind of noodles has _______(tomato)
7. Kate wants ________(eat) dinner with her friends 8. There are all ________(kind) of flowers in the park.
II. 单项选择。
1.Some oranges _____ in the bag. Some chicken _____ on the table . A. is; is B. are; are C.
are; is D. is; are
2.Would you like _____? A. some bread B. some breads C. a bread D. any breads
3.could you give me _____ water? A. two B. two glass C. two glass of D. two glasses
of
https://www.doczj.com/doc/419751751.html,e on , please. Help yourselves to some _____ and ______.
A. fish; chicken
B. fish; chicken
C. fishes; chicken
D. fishes; chicken
5.______ milk would you like? A.How many B. How C. How much D. How long
6.Is there _____ in today’s newspaper?
A. different something
B. different anything
C. something different
D. anything different
7.– I like fish ___ orange juice. – I don’t like chicken ____ porridge. A. and; but B. and; or
C. or; and
D. or; but
8.He’d like _____ some beef for dinner . A. to eat B. eating C. eat D. eats
9.Why do people never ______ birthday noodles in China? A. cut in B. cut to C. cut up D.
cut on
10.– May I have your order? -- ________. A. I’d like some dumplings, please B. Oh, a medium
bowl C. Yes, there are some potatoes D. Sorry, we don’t have noodles
11.– What would you like? – I’d like some dumplings , please. – I’d like mapo tofu ____ rice. A.
in B. with C. of D. to
12.My mother likes potatoes. She ______ likes mutton. A. too B. also C. other D. others
Unit11 How was your school?
一.重点短语
1. take some photos
2. ask him some question
3. show sb. around the farm
4. learn a lot about farming
5. grow strawberries
6. milk a cow
7. a box of milk 8. quite a lot 9. quite busy
10. quite a tall tree = a quite / very tall tree 11. grow well / fast
12. grow flowers / vegetbales 13. worry about sb./sth. 14. be/feel worried about sb./ sth.
15. pass the test luckily 16. ride a horse 17. see some interesting animals
18. a lot of fun = much fun 19. come out 20. go to the countryside
21. go to an art museum 22. see some paintings 23. go on a school trip 24. make a fire 25. an expensive watch 26. an exciting film 27.film station 28. be interested in 29. an interesting place = a place of interest
30.too many people 31. too much milk 32. not at all
33. buy some lovely gifts for my parents 35. take the train to the museum
36. have a nice weekend 37.get there by train == take the train there
二..重点句子
1.– How was your weekend? – It was great / OK/ not bad.
2.– What did you do last weekend ？-- We went to the beach.
3.At about two o’clock, it got very cloudy and we worried it would rain.
4.Did you ask him any question?
5.At the museum, I learned a lot about robots.
6.I didn’t know they could play chess with us.
7.The rooms were really dark and it was diffciult to take photos.
8.There were also too many people and I couldn’t really see or hear the guide.
9.All in all, it was an exciting day.
10.The guide taught us how to make a model robot.
三.语法讲解
一般过去时
1.意义：表示过去的某个时间里发生的动作、状态，或过去习惯性，经常性的动作及行为。
2.常用时间状语：yesterday , the day before yesterday, last week( year, night, month….) in
1989, just now, at the age of 5, one day, 一段时间+ ago, long ago 等
3.基本结构：句子主语+ 动词过去式
4.动词过去式变化规则：look –looked love –loved worry—worried
stop—stopped make—made
5.否定形式：was/ were + not Mike was at home yesterday. –Mike wasn’t at home
yesterday.
在行为动词前加didn’t , 同时还原行为动词。Tom visited his uncle last night. –Tom didn’t visit his uncle last night.
6.一般疑问句：Was , were , could 等提前。He was at school yesterday. – Was he at school
yesterday?
I could swim at the age of 4. --- Could you swim at the age of 4?
行为动词前借助于助动词did, 并将行为动词过去式还原成原形。
Tom visited his uncle last night. – Did Tom visit his uncle last night? – Yes, he did. / No, he didn’t .
四.基础训练
I.用所给的单词适当形式填空。
1.I helped my uncle _______(milk) a cow.
2. They ______(go) to the zoo last week and ____(ride) a horse in the zoo.
3.The farmer _______(show) me around the farm yesterday and I ________(feed) the chicken there.
4. Tom and Eric _______(visit) their grandparents last week. They ________(pick) strawberries and look them home.
5. We _______(have) so much fun playing basketball last Sunday.
6. They _______(clean) Green Park last Sunday.
7. The sun ________ (come) out again when we got home.
8. I didn’t buy ________ (something) because the things were too expensive.
9. I like _________, but I don’t like to feed _________(chicken).
10. Tom ________ (hurt) his leg last week.
II. 单项选择。
1.The mother often makes the boy ____ his homework before supper. A. finish B. to finish
C. finishing
D. finishes
2.– What did you buy for your sister at the gift shop? – I bought ______, because I couldn’t find
_______ she likes. A. something; anything B. anything; something C. nothing ; anything
D. something; nothing
3.Yesterday, I asked three students ____ last weekend.
A. what did they do
B. what did they
C. what they did
D. what they do
4.When I came into the room, I saw him _____ a newspaper. A. read B. to read C. reading
D. reads
5.I’m ______ in the _______ story. A. interested; interested B. interested. Interesting C.
interesting; interesting D. interesting; interested
6.They went _______ on their school trip. A. fish B. fishing C. fishes D. to fish
7._____ my last school trip, I climbed the mountains with y friends. A. On B. At C. In
D. Of
8.The strawberries taste ( 尝) ____ and they sell ___. A. good; good B. well ; well C. good;
well D. well ; good
9.The exam was over. ____. I got an A. A. Luck B. Lucky C. Luckily D. Luckly
10.Mr Wang taught us ________ a model robot. A. make B. made C. to make D. makes
Unit12. What did you do last weekend?
一.重点短语
1. stay at home
2. stay up
3. run away
4. two mice
5. shout to sb.
6. shout at sb (有攻击性)
7. fly in the sky
8.fly to Beijing
9. make a kite 10. under the moon 11.a big surprise
12.get a surprise
13. surprise sb. 14.move away 15.start to do sth. 16. jump up and down
17.jump into the lake 18.put sth. into the bag 19.walk into the classroom
20.go boating
21.camp by the lake 22.in the lake 23. play badminton
24.study for the English test
25.feed some sheep 26.put up our tents 27.make a fire 28. keep us warm
29. sit under the moon 30.tell each other stories 31.the next morning 32. get a terrible surprise
33.look out of the tent 34.see a big snake sleeping near the fire 35.wake up
36.feel things moving
37.a very useful lesson for me 38.have a busy weekend 39.call the fire station
40.hear sb. doing sth.
41.hear sb. do sth 42.find sb do sth 43. find sb doing sth
二.重点句子
1.– What did you do last weekend? – We played soccer.
2.I studied for the English test.
3.They have a butterfly house with over 200 kinds of butterflies.
4. A family of mice were in the kitchen on Saturday morning when they saw a big cat.
5.That’s why it’s important to learn a second language.
6.As a special gift, our parents took us to India.
7.I was so scared that I couldn’t move.== I was too scared to move.
8.We shouted to our parents to let them know about the danger.
9.We learned how to call the fire station and what to do when there is a fire.
10.What an interesting job they have!
11.We had great fun playing in the water.
三.语法讲解
一般过去式
四.基础训练
I.用所给词的适当形式填空。
1.Lucy and I _______(clean) our classroom yesterday.
2. Mrs Jing ________(write) many
story books last year.
3. In the past, I ______(love) watching action movies.
4. I _______(stay) at home and _______(watch) TV last night.
5. What day ________(be) it yesterday?
6.Sally often ________(watch) TV at home on weekends.
7. – Do you _________(study) Japanese at school? – No, we don’t.
8. ______ Eric often ________(go) for a walk after supper?
9. – What did you _______(do) last weekend? – I went _______(camp).
10.My grandpa fed ten ________(sheep) last year. 11.What an ________(interest) book it is!
12.They _______(have) a busy weekend. 13.Li Ming _______(study) for math test last night.
14.On Saturday evening, I ________(cook) dinner for my family.
15.I _______(see) an exciting movie last night. 16. Did you do _______(something ) interesting last weekend?
II. 单项选择。
1.Ted and Tony visited their English teacher this morning, but Rosa_____. A. wasn’t B. doesn’t
C. didn’t
D. don’t
2.Wang Lei _____ in Beijing now but he ______ in Paris yesterday. A. was; was B. is; was
C. is; is
D. was; is
3.______ morning, we got a beautiful card . A. The next B. In the next C. Next to D.
Next the
4.It’s important ______ go near a snake. A. not to B. to not C. don’t D. doesn’t
5.When she saw the __ snake, she was so ___. A. scared; scary B. scary; scared C. scary;
scary D. scared; scared
6.When Yao Ming was playing basketball, the people ___him ― come on‖ .
A. shout to
B. shouted to
C. was shouting
D. shout at
7.When I heard the news, I got a ______. A. surprised B. surprising C. surprise D.
surpriseing
8.Please work for us _____ a guide . A. To B. Who C. Whom D. Where
9.The guide told those _______ about butterflies. A. a kind of B. kind of C. kinds of D. all
kinds of
10.I stayed ______ late to watch the movie. A. on B. up C. in D. to
11.What ______ you ________ last weekend? A. do; do B. are; doing C. did; do D. were ;
doing
12.His parents asked him _____ at home because he didn’t do his homework. A. stay B. to stay
C.staying
D. stayed
13.– Who did you play _______? – Mr Green. A. with B to C. on D. in
代数部分 专题一有理数及其运算 专题说明 本专题内容从引入负数开始，与小学学习的整数、分数数纳入初中的有理数X 畴，并进行加、减、乘、除、乘方等运算。了解并利用数轴这一工具，方便地解决问题。 一、数的分类（1）按大小来分（2）按学习顺序来分 二、重要概念讲解 ①数的产生与发展（数的局限性） ②相反数 ③绝对值（非负数性质） ④倒数 ⑤大于1的数的科学记数法 三、工具--------数轴（三要素） 数形结合法 四、有理数的运算 1、加法（符号、绝对值） 2、减法（转化） 3、乘法（符号、绝对值） 4、运算律加法交换律a b b a +=+ 加法结合律)()(c b a c b a ++=++ 乘法交换律ab=ba 乘法结合律(ab)c=a(bc) 乘法对加法的分配律a(b+c)=ab+ac 5、运算顺序:先算乘方，再算乘除，最后算加减,有括号，先算括号内的。 例题解析 【例1】已知023=-+-b a a ，求b a 2+的值。
【例2】计算： （1））（）（3 17-31211-3-61-1÷??? ??++? ??? ??； （2）3 2211-811-321--31-1）（）（）（???? ?????÷??? ??。 【例3】9867000000000=（科学记数法） 强化训练 一、选择题 1.下列运算中正确的是 ( ) A ．03-3-= B ．0=+-a a c ．1)9 8 1(89=-?- D ．1553= 2．下列说法中正确的是 ( ) A. 0是最小的整数； B ．任何数的绝对值是正数 C ．a -是负数 D ．绝对值等于它本身的数是正数和0 3．在有理数一（一4），一2 3，一 2 1，3）5（一， 0，一3 3）（+中，负数有 ( ) A.1个 B ．2个 C ．3个 D ．4个 4．计算 3)2()32(31273-+?? ? ???--÷的值是 ( ) A ．316 - B ．767- C ．718 D ．3 2 9 5．如果a 与b 互为相反数，且x 与y 互为倒数，那么xy b a 2)(2 -+的值为 ( )
小升初数学-应用题综合训练（九） 81. 有若干个自然数，它们的算术平均数是10，如果从这些数中去掉最大的一个，则余下的算术平均数为9；如果去掉最小的一个，则余下的算术平均数为11，这些数最多有多少个？这些数中最大的数最大值是几？ 解：根据新课标教材，0是最小的自然数。 由于去掉最小数后，算术平均数是11， 所以，这些数最多有10÷（11－10）＋1＝11个。 所以，最大的数最大值是11－1＋10＝20 82. 某班有少先队员35人，这个班有男生23人，这个班女生少先队员比男生非少先队员多几人？ 解： 方法一 如果这23个男生都是少先队员，那么女生少先队员就有35－23＝12人，男生非少先队员就没有了，所以就多12人。 方法二 如果这23个男生都不是少先队员，那么女生少先队员就有35人，那么女生少先队员就比男生非少先队员多35－23＝12人。 方法三 女生少先队员－男生非少先队员 ＝（女生少先队员＋男生少先队员）－（男生非少先队员＋男生少先队员） ＝少先队员－男生 ＝35－23 ＝12人。 83. 小东计划到周口店参观猿人遗址.如果他坐汽车以40千米/小时的速度行驶，那么比骑车去早到3小时，如果他以8千米/小时的速度步行去，那么比骑车晚到5小时，小东的出发点到周口店有多少千米？ 解： 说明坐汽车比步行少用3＋5＝8小时， 这8小时内，步行要行8×8＝64千米。 坐汽车每小时要比步行多行40－8＝32千米。 坐汽车64÷32＝2小时，就可以多行这么多了。 所以，从出发点到周口店有40×2＝80千米。 又想到一个解法： 汽车速度是步行速度的40÷8＝5倍 那么汽车行完全程的时间是（3＋5）÷（5－1）＝2小时 所以从出发点到周口店有40×2＝80千米 所以从出发点到周口店有40×2＝80千米 40/8＝5 （5+3）*40＝320 320/（5-1）＝80 84. 甲、乙两船在相距90千米的河上航行，如果相向而行，3小时相遇，如果同向而行则15小时甲船追上乙船.求在静水中甲、乙两船的速度. 两船速度和：90÷3=30（千米） 两船速度差：90÷15=6（千米） 乙船的速度：（30-6）÷2＝12（千米／小时）
小升初英语提优综合练习(二) 一、单项选择（20%） 1.Can I ____ your new watch? Sure, here you are. A. look at B. look for C. look after D. look like 2. Please introduce ____ to your new classmates. A. you B. yours C. your D. yourself 3. I would like ____ the classroom. Would you ____ me, please? A. clean; help B. to clean; help C. clean; to help D. to clean; to help 4. ----How long do you do eye exercises? ----____. A. Twice B. Twice a day C. For five minutes D. At 9 a.m. 5. I often play ____ basketball with my father ____ weekends. A. the, on B. a, on C. an, at D. /, at 6. The football star Messi plays for FC Barcelona. He is ____ favourite football player. A. many people B. many peoples’ C. many people’s D. much people’s 7. Does Daniel ____ after school? A. go to home on foot B. walk to home C. walk his home D. walk home 8. There are ____ books in our school library. A. much B. a lot C. lot of D. lots of 9. I ____ see very well, so I wear glasses. A. don’t B. can’t C. must not D. am not 10. I don’t want to ____ the news about the South China Sea. A. talk about B. talk to C. talk with D. talk 11. I eat _____ and some rice for lunch today. A. fishes B. two fish C. two fishes D. any fish 12. She sings very ____because she is a singer.
初一升初二数学辅导资料（一） 11.2.2三角形的外角 [教学目标]1、理解三角形的外角；2、掌握三角形外角的性质，能利用三角形外角的性质解决问题。 [重点难点]三角形的外角和三角形外角的性质是重点；理解三角形的外角是难点。 [教学过程] 一、导入新课 〔投影1〕如图，△ABC的三个内角是什么？它们有什么关系？ 是∠A、∠B、∠C，它们的和是1800。 若延长BC至D，则∠ACD是什么角？这个角与△ABC的三个内角有什么关系？ 二、三角形外角的概念 ∠ACD叫做△ABC的外角。也就是，三角形一边与另一边的延长线组成的角，叫做三角形的外角。 想一想，三角形的外角共有几个？共有六个。 注意：每个顶点处有两个外角，它们是对顶角。研究与三角形外角有关的问题时，通常 每个顶点处取一个外角. 三、三角形外角的性质 容易知道，三角形的外角∠ACD与相邻的内角∠ACB是邻补角，那与另外两个角有怎样的数量关系呢？ 如图，这是我们证明三角形内角和定理时画的辅助线，你能就 此图说明∠ACD与∠A、∠B的关系吗？ ∵C E∥AB，∴∠A=∠1，∠B=∠2 又∠ACD=∠1+∠2 ∴∠ACD=∠A+∠B 你能用文字语言叙述这个结论吗？ 三角形的一个外角等于与它不相邻的两个内角之和。 四、例题 例如图，∠1、∠2、∠3是三角形ABC的三个外角，它们的和是多少？ 解：∵∠1+∠BAC=1800，∠2+∠ABC=1800，∠3+∠ACB=1800，∴∠1+∠BAC+∠2+∠ABC+∠3+∠ACB=5400 又∠BAC+∠ABC+∠ACB=1800 ∴∠1+∠2+∠3==3600。 你能用语言叙述本例的结论吗？ 三角形外角的和等于3600。 11.3．1 多边形
……………………………………………………………最新资料推荐………………………………………………… 小升初语文综合练习（130分） 一、阅读下面文字，根据拼音写出汉字。（3分） 一天，我请朋友为我（tí xiě） “就是它了。” 我问其故。他说：“篆书的快乐太纤巧，（jū nì），草书的快乐太（piāo hū），都配不上‘快乐’二字。这行书，）自然，似行云流水，这才是真正的快乐。 二、用“望“字组成6个词语分别填在文中的括号里。（3分） 有一个叫李青松的青年在获救后说，压在废墟中的他并没有（），他（）着奇迹的出现……救援部队来了，他觉得自己有了（），一种求生的（）让他大声呼喊……他得救了。在医院里，他对前来（）人朋友说：“（）未来，我依然充满信心。 三、根据提示填上合适的成语或俗语、歇后语。（10分，1-6题1分，7题4分） 1、最悬殊的地方——（）最昂贵的稿费——（） 2、如临深渊，（）智者千虑，（） 3、狐狸腋下的皮虽然很小，但是聚集起来就能缝成一件皮袄。（） 4、传说水中有一种叫蜮的怪物，看到人的影子就喷沙子，被喷着的人就会得病。（） 5、这件事你有什么要求，就别绕来绕云，咱们还是（），好吗？ 6、玩电子游戏可真是你们孩子的事，我们玩起来简直是（），顾了这个，顾不了那个。 7、时间过得真快啊，六年的小学生活就要结束了。回想愉快的时光，我们会用成语（）、（）、（）来形容同学们课堂上的“笑”；回首往日，我们会用成语（）、（）来感叹时间之快。想着（）的老师和（）的同学，心中真有点（）。 四、写出下列句子运用的修辞手法及作用。（4分） 1、那又浓又翠的荔枝林景色，简直是幅青绿山水画。 2、狂风紧紧抱起一层层巨浪，恶狠狠地把它们甩到悬崖上。 五、根据提示或语境补充对联、诗句、格言。(15分) 1、有一副对联，上联是“客中客入画中画”，请对出下联：。 2、一门父子三词客，。 3、小明的心思不在学习上，请你用学过的诗句劝他：“”。 4、爷爷七十大寿，大家祝爷爷：“福如乐海，寿比南山。”爷爷却叹道：“”。我赶紧把爷爷的话打住：“‘。’爷爷，您的身子骨比年轻人还结实呢。”爷爷高兴地笑了。 5、答应别的的事情，就要做到，可以引用的名言是。 6、中国近几年发生了翻天覆地的变化，正所谓。 7、每当我们遇到棘手的问题往往一筹莫展，可经过冥思苦想，会突然发现问题的根源，难题也就迎刃而解，真可谓，。 8、知识的获得单靠书本终究肤浅，还要注重实践。正如陆游所言：“，。” 9、老师问我们几位同学：“你们的学习一直很优秀，有什么诀窍吗？” 小东说：“‘纸上得来终觉浅，。’就是要多动手，多实践。” 晓南说：“要像古人所说的‘博学之，之，之，之，笃行之。’” 我说：“要有恒心，学会坚持‘锲而舍之，；锲而不舍，。’” 李西说：“‘风声雨声读书声声声入耳，。’要学会扩大自己的知识面。” 老师说：“你们各有各的好办法，真是‘问渠那得清如许？’啊！”
三起小升初英语综合训练（二）（答案）三起小升初英语暑假综合训练（二）（答案） 暑假综合训练（二） 一、选出不同类的单词 1.选出下列每组短语中不同类的一项（） A. wash my face B. be late for C. brush my teeth 2.找出属于不同类的单词。 A. pizza B. pies C. cakes 3.选出下列单词中不同类的单词（） A. ruler B. pear C. book 4.选出下面单词中不同类的单词（）
A. always B. often C. enjoy D. sometimes 5.选出下列单词中不同类的单词（） A. monkey B. bread C. tiger 二、判断题 6.doctor 7.—Do you have a ball? —Yes, I do. A: Is she your mother? B: Yes, she is. 9.He played on the puter yesterday.
11.ball 三、单选题 12.There _____ a desk, a TV and two sofas in my room. A. is B. am C. are D. be 13.I go to the zoo my parents. A. and B. but C. with 14.There are some . A. babies B. uncle C. sister 15.You’re taller ______ your brother. A. than B. and C. more
初一升初二衔接课程 数学
代数部分 专题一 有理数及其运算 专题说明 本专题内容从引入负数开始，与小学学习的整数、分数数纳入初中的有理数范畴，并进行加、减、乘、除、乘方等运算。 了解并利用数轴这一工具，方便地解决问题。 一、数的分类 （1）按大小来分 （2）按学习顺序来分 二、重要概念讲解 ①数的产生与发展（数的局限性） ②相反数 ③绝对值（非负数性质） ④倒数 ⑤大于1的数的科学记数法 三、工具--------数轴（三要素） 数形结合法 四、有理数的运算 1、加法（符号、绝对值） 2、减法（转化） 3、乘法（符号、绝对值） 4、运算律 加法交换律 a b b a +=+ 加法结合律 )()(c b a c b a ++=++ 乘法交换律ab=ba 乘法结合律(ab)c=a(bc) 乘法对加法的分配律a(b+c)=ab+ac 5、运算顺序:先算乘方，再算乘除，最后算加减, 有括号，先算括号内的。 例题解析 【例1】已知023=-+-b a a ，求b a 2+的值。
【例2】计算： （1））（）（3 17-31211-3-61-1÷??? ??++? ??? ??； （2）3 2211-811-321--31-1）（）（）（??? ????? ?÷??? ??。 【例3】9867000000000= （科学记数法） 强化训练 一、选择题 1.下列运算中正确的是 ( ) A ．03-3-= B ．0=+-a a c ．1)9 8 1(89=-?- D ．1553= 2．下列说法中正确的是 ( ) A. 0是最小的整数； B ．任何数的绝对值是正数 C ．a -是负数 D ．绝对值等于它本身的数是正数和0 3．在有理数一（一4），一2 3，一 2 1，3）5（一， 0，一3 3）（+中，负数有 ( ) A.1个 B ．2个 C ．3个 D ．4个 4．计算 3)2()32(31273-+?? ? ???--÷的值是 ( ) A ．316 - B ．767- C ．718 D ．3 2 9 5．如果a 与b 互为相反数，且x 与y 互为倒数，那么xy b a 2)(2 -+的值为 ( )
初一数学知识点归纳
初一数学知识点总结 （初一上学期） 代数初步知识 1、代数式：用运算符号“＋ － × ÷ …… ”连接数及表示数的字母的式子称为代数式。 注意：用字母表示数有一定的限制，首先字母所取得数应保证它所在的式子有意义，其次字母所取得数还应使实际生活或生产有意义；单独一个数或一个字母也是代数式。 2、列代数式的几个注意事项： （1）数与字母相乘，或字母与字母相乘通常使用“· ” 乘，或省略不写。 （2）数与数相乘，仍应使用“×”乘，不用“· ”乘，也不能省略乘号。 （3）数与字母相乘时，一般在结果中把数写在字母前面，如a×5应写成5a 。 （4）在代数式中出现除法运算时，一般用分数线将被除式和除式联系，如3÷a 写成a 3的形式； （5）a 与b 的差写作a-b ，要注意字母顺序；若只说两数的差，当分别设两数为a 、b 时，则应分类，写做a-b 和b-a . 3、几个重要的代数式： （1）a 与b 的平方差是：a 2 -b 2 ； a 与b 差的平方是：（a-b ）2 。 （2）若a 、b 、c 是正整数，则两位整数是：10a+b ；则三位整数是：100a+10b+c 。 （3）若m 、n 是整数，则被5除商m 余n 的数是：5m+n ；偶数是：2n ，奇数是：2n+1；三个连续整数是：n-1、n 、n+1。 （4）若b ＞0，则正数是:a 2 +b ，负数是：-a 2 -b ，非负数是：b 2 ，非正数是：-b 2 。 有理数 1、有理数： (1)凡能写成 a b （a 、b 都是整数且a≠0）形式的数，都是有理数。正整数、0、负整数统称整数；正分数、负分数统称分数；整数和分数统称有理数。 （注意：0即不是正数，也不是负数；-a 不一定是负数，+a 也不一定是正数；p 不是有理数） (2)有理数中，1、0、-1是三个特殊的数，它们有自己的特性；这三个数把数轴上的数分成四个区域，这四个区域的数也有自己的特性。
小升初数学-应用题综合训练（十） 101. 小明买了1支钢笔，所用的钱比所带的总钱数的一半多0.5元；买了1支圆珠笔，所用的钱比买钢笔后余下的钱的一半少0.5元；又买了2.8元的本子，最后剩下0.8元.小明带了多少元钱？ 解：还原问题的思考方法来解答。买圆珠笔后余下2.8＋0.8＝3.6元，买钢笔后余下（3.6－0.5）×2＝6.2元，小明带了（6.2＋0.5）×2＝13.4元 102. 儿子今年6岁，父亲10年前的年龄等于儿子20年后的年龄.当父亲的年龄恰好是儿子年龄的2倍时是在公元哪一年？ 解：儿子20年后是6＋20＝26岁，父亲今年26＋10＝36岁。父亲比儿子大36－6＝30岁。 当父亲的年龄是儿子年龄的2倍时，儿子的年龄就和年龄差相同，那么到那时儿子30岁。 所以，是在30－6＋2007＝2031年时。 103. 在一条长12米的电线上，黄甲虫在8：20从右端以每分钟15厘米的速度向左端爬去；8：30红甲虫和蓝甲虫从左端分别以每分钟13厘米和11厘米的速度向右端爬去，红甲虫在什么时刻恰好在蓝甲虫和黄甲虫的中间？ 解："恰好在中间"，我的理解是在蓝甲虫和黄甲虫的中点上。 假设一只甲虫A行在红甲虫的前面，并且让红甲虫一直保持在蓝甲虫和A甲虫的中点上。那么A甲虫的速度每分钟行13×2－11＝15厘米。当A甲虫和黄甲虫相遇时，就满足条件了。 所以A甲虫出发时，与黄甲虫相距12×100－15×（30－20）＝1050厘米。 需要1050÷（15＋15）＝35分钟相遇。 即红甲虫在9：05时恰好居于蓝甲虫和黄甲虫的中点上。 104. 一支解放军部队从驻地乘车赶往某地抗洪抢险，如果将车速比原来提高1/9，就可比预定的时间20分钟赶到；如果先按原速度行驶72千米，再将车速比原来提高1/3，就可比预定的时间提前30分钟赶到.这支解放军部队的行程是多少千米？ 解：车速提高1/9，所用的时间就是预定时间的1÷（1＋1/9）＝9/10，所以预定时间是20÷（1－9/10）＝200分钟。 速度提高1/3，如果行完全程，所用时间就是预定时间的1÷（1＋1/3）＝3/4，即提前200×（1－3/4）＝50分钟。 但却提前了30分钟，说明有30÷50＝3/5的路程提高了速度。 所以，全程是72÷（1－3/5）＝180千米。 这题我有一巧妙的，小学生容易懂的算术方法。 如将车速比原来提高9分之1，速度比变为10：9，所以时间比为9：10，原来要用时20*（10－9）＝200分。 如一开始就提高3分之1，就会用时：3*200/4＝150分，这样提前50分，而实际提前30分， 所以72千米占全程的1－30/50＝20/50， 所以全程72/（20/50）＝180千米。 回答者：纵览飞云 - 魔法师四级 1-9 18:56 105. 一只船从甲码头到乙码头往返一次共用4小时，回来时顺水比去时每小时多行12千米.因此后2小时比前2小时多行18千米，那么甲、乙两个码头距离是几千米？ 解：逆水行的18÷2＝9千米，顺水要行12×2－9＝15千米。所以顺水速度是12÷（15－9）×15＝30千米/小时。
新部编版小升初语文专项复习练习 句子综合训练营 一二三总分 一、句子综合应用 1．按要求写句子。 （1）.早晨起来我呼吸着灿烂的阳光和新鲜的空气。（修改病句） _________________________ （2）.鹅的步调从容，大模大样的颇像京剧里的净角出场。（仿写比喻句） ___________________________ （3）.饭罐已被狗舔得空空如也。（改为“把”字句） ___________________________ 2．改写句子。 （1）我们非常高兴你们信守诺言。（调整词序，不改变句意） _____________________________________________________________________ _____________________________________________________________________ _____________ （2）月亮非常圆。（改为比喻句） _____________________________________________________________________ _____________________________________________________________________ _____________ （3）修一座友谊的长桥，这是我们共同的心愿。（改为反问句） 精品 原创
_____________________________________________________________________ _____________________________________________________________________ _____________ （4）小姑娘天真的心灵，不正像一个含苞欲放的花蕾吗？（改为陈述句） _____________________________________________________________________ _____________________________________________________________________ _____________ 3．句子。 （1）童年的往事多得像天上的星星。（缩句） ________________________________________________ （2）这儿景色优美，真让人流连忘返。（反问句） ________________________________________________ （3）残阳很红。（比喻句） ________________________________________________ （4）麦子已经成熟了，真是丰收在望。（原句上修改病句） ________________________________________________ （5）贝多芬问盲姑娘：“您爱听吗？我再给您弹一首吧！”（改为转述句）________________________________________________ （6）皎洁的月光照耀着大地。（拟人句） ________________________________________________ （7）仿写句子。 例：种子，如果害怕黑暗，那它永远不会发芽。 花朵，如果害怕_____，那它永远_____。 _____，如果害怕_____，那它永远_____。 4．给下面一段话加上不同的标点，使它们表示不同的意思。 婷婷姐姐叫你快去 （1）___________________________________________________ （2）___________________________________________________ （3）__________________________________________________ （4）_________________________________________________
复习专题一重点解答题型: 1、方程（k2-4）x2+(k+2)x+(k-6)y=k+8是关于x、y的方程，则当k为何值时，方程为一元一次方程？当k为何值时，方程为二元一次方程？ 3、a取何值时，关于x的方程x＝a＋1与2（x－1）＝5a－6的解相同． 4、已知x＝2时代数式2x2＋5x＋c的值是14，求x＝－2时代数式的值． 5、已知 2 1 x y = ? ? = ? 是方程组 7 1 ax by ax by += ? ? -= ? 的解，求a b -的值。 6、方程组 2, 3 x y x y ?+= ? ? += ?? 的解为 2, . x y = ?? ? = ?? 则被遮盖的两个数分别为多少？ 7、已知方程组 ? ? ? = + = - 6 4 by ax by ax 与方程组 ? ? ? = - = - 1 7 4 5 3 y x y x 的解相同，求a，b的值 8、若2 |327|(521)0 a b a b +++-+=，则a b +的值为多少？ 9、已知方程组 ? ? ? = - + - = + - 16 6 3 1 2 z y x z y x ，则y x+为多少？
10、已知4520 430x y z x y z -+=??+-=?，且0xyz ≠，则::x y z 的值为多少？ *11、当正整数a 为何值时,方程组???=-=+0 216 2y x ay x 有正整数解?并求出正整数解. 复习专题二 不等式（组）与方程（组）综合运用 1. 关于x 的方程 4)3(2-=-a x 的解不小于方程132+=-x a x 的解，则a 的取值范围是 。 2. 已知关于x 、y 的方程组?? ?-=++=+m y x m y x 13213，（1） 若x+y<0，则k 的取值范围是 。（2）如果x>y ， 则k 的取值范围是 。 3. 若不等式22≥+-a x 的解集是1-≤x ，则a 值是_______________ 4. 若不等式组?? ?+<-≥-1 22b a x b a x 的解集为53<≤x ，则a b 的值是__________ 5. 若不等式组?? ?<->+0 421x a x 有解，则a 的取值范围是____________ 6. 关于x 的不等式组??? ??<++>+0 1234a x x x 的解集为x<-a ，则a 的取值范围是 7. 已知关于x 、y 的方程组? ??=++=-a y x a y x 523 的解满足x>y>0，化简a a -+3=_____________ 8. 已知? ? ?-=-+=+1341 323k y x k y x 且y x >，则k 的取值范围是 9. 已知不等式组1 32 1 6 3+>>-m x m x 的解集是3 2m x + >，则m 的取值范围是 10. 若方程组?? ?=-=+1 29 3y x y ax 无解，则的值为______________ 11. 关于的方程x kx -=6的解集为正整数，则k 的值为 。 12. 已知?? ?=-+=+-9 855 2z y x z y x ，则x+y= ,x ：y ：z= . 二、解答题： 1、已知不等式5(x －2)＋8＜6(x －1)＋7的最小整数解是方程2x －ax ＝4的解，求a 的值． a x
2019小升初语文综合复习专项训练题参考答案 综合整理：梅语文、梅学堂教学团队本试题为梅语文平台综合整理， 转载请联系授权 （说明：因题量较大，难免会有校对不到的地方，如您发现错误，请自行更正） 拼音练习题（一）答案一、查字典填空 1.J 病字头 5画③ 2.12 目 3.横折四字头 8画Z zhì ① 二、选字填空 1.幕慕暮墓 三、判断 1.× 2. × 3.× 四、判断并改错 ①形—型心—欣持—恃 ②伸—身掬—鞠 ③√ ④手—首皮—脾燥—躁五、选择恰当的解释 （1）② （2） ④ 六、看拼音写词 语卸竣裸湛寡 铸御悬 七、给加横线的 字注音xià dào suì zhà pèn qiǎng pō chì 八、B 九、D 修辞练习题（二） 答案 1.B 2.C 3.B 4.（1）比喻（2）反问（3）拟人（4）拟人 （5）比喻
小升初语文练习病句修改练习题（三）答案 1、铺满前面加“地上” 2、去掉“笔直” 3、去掉“员” 4、“马上”和“顿时”二选一 5、“宁静”改成“平静” 6、“秋天”和“香山”调换位置 7、去掉“刚刚” 8、“和”改成“听” 9、去掉“有时” 10、健儿后面加“发扬了” 11、“每天”前面加主语 12、“高兴”前面加主语 13、上课前面加“养成” 14、“卫生”后面加好习惯 15、“艰难”前面加主语 16、“比赛”后面加开始了 17、“许许多多”和“数不清”二选一 18、“所有”和“一切”二选一 19、“整整齐齐”改成“干干净净” 20、“做到”改成“养成” 21、“宽敞”改成“辽阔” 22、“一个个”改成“许多” 23、“老奶奶”改成“老爷爷” 24、去掉“乌云和” 25、“稻花香”和“一阵”调换位置 26、去掉“国家” 小升初语文成语填空练习题（四）答案 一、克、扬、力、艰、屈、长、力、厉、及、长、采、禁、简、躁、挠、采、璧、骄、茵、垠、钧、瓴、贯、恭、急、迫、贯、诡、投、厉、炯炯、经、致、望、璧、衷、摩、截、焕、岸、继、裁、尚、殒、振、铤、鹜、安、荏、荼、
1. 甲、乙、丙三人在A、B两块地植树，A地要植900棵，B地要植1250棵.已知甲、乙、丙每天分别能植树24，30，32棵，甲在A地植树，丙在B地植树，乙先在A地植树，然后转到B地植树.两块地同时开始同时结束，乙应在开始后第几天从A地转到B地？ 总棵数是900＋1250＝2150棵，每天可以植树24＋30＋32＝86棵 需要种的天数是2150÷86＝25天 甲25天完成24×25＝600棵 那么乙就要完成900-600=300棵之后，才去帮丙 即做了300÷30＝10天之后即第11天从A地转到B地。 2. 有三块草地，面积分别是5，15，24亩.草地上的草一样厚，而且长得一样快.第一块草地可供10头牛吃30天，第二块草地可供28头牛吃45天，问第三块地可供多少头牛吃80天？ 这是一道牛吃草问题，是比较复杂的牛吃草问题。 把每头牛每天吃的草看作1份。 因为第一块草地5亩面积原有草量＋5亩面积30天长的草＝10×30＝300份 所以每亩面积原有草量和每亩面积30天长的草是300÷5＝60份 因为第二块草地15亩面积原有草量＋15亩面积45天长的草＝28×45＝1260份 所以每亩面积原有草量和每亩面积45天长的草是1260÷15＝84份 所以45－30＝15天，每亩面积长84－60＝24份 所以，每亩面积每天长24÷15＝1.6份 所以，每亩原有草量60－30×1.6＝12份 第三块地面积是24亩，所以每天要长1.6×24＝38.4份，原有草就有24×12＝288份 新生长的每天就要用38.4头牛去吃，其余的牛每天去吃原有的草，那么原有的草就要够吃80天，因此288÷80＝3.6头牛 所以，一共需要38.4＋3.6＝42头牛来吃。 两种解法： 解法一： 设每头牛每天的吃草量为1，则每亩30天的总草量为：10*30/5=60；每亩45天的总草量为：28*45/15=84那么每亩每天的新生长草量为（84-60）/（45-30）=1.6每亩原有草量为60-1.6*30=12，那么24亩原有草量为12*24=288，24亩80天新长草量为24*1.6*80=3072，24亩80天共有草量3072+288=3360，所有3360/80=42（头） 解法二：10头牛30天吃5亩可推出30头牛30天吃15亩，根据28头牛45天吃15木，可以推出15亩每天新长草量（28*45-30*30）/（45-30）=24；15亩原有草量：1260-24*45=180；15亩80天所需牛180/80+24（头）24亩需牛：（180/80+24）*（24/15）=42头 3. 某工程，由甲、乙两队承包，2.4天可以完成，需支付1800元；由乙、丙两队承包，3+3/4天可以完成，需支付1500元；由甲、丙两队承包，2+6/7天可以完成，需支付1600元.在保证一星期内完成的前提下，选择哪个队单独承包费用最少？ 甲乙合作一天完成1÷2.4＝5/12，支付1800÷2.4＝750元 乙丙合作一天完成1÷（3＋3/4）＝4/15，支付1500×4/15＝400元 甲丙合作一天完成1÷（2＋6/7）＝7/20，支付1600×7/20＝560元 三人合作一天完成（5/12＋4/15＋7/20）÷2＝31/60， 三人合作一天支付（750＋400＋560）÷2＝855元 甲单独做每天完成31/60－4/15＝1/4，支付855－400＝455元 乙单独做每天完成31/60－7/20＝1/6，支付855－560＝295元 1 / 6
小升初数学-应用题综合训练(十九) 181. 甲、乙两车分别从A，B两地同时相向开出，四小时后两车相遇，然后各自继续行驶三小时，此时甲车距B地10千米，乙车距A地80千米.问甲车到达B地时乙车还要经过多少小时才能到达A地? 解法一：说明甲车和乙车4-3=1小时共行10+80=90千米。两车行4+3=7小时，甲车比乙车多行80-10=70千米。所以甲车比乙车每小时多行70÷7=10千米。所以甲车每小时行(90+10)÷2=50千米，乙车每小时行90-50=40千米。当甲到底B地时，用去10÷50=0.2小时，乙行余下的80千米需要80÷40=2小时，所以还需要2-0.2=1.8小时。 解法二：总路程是(10+80)÷(1-3/4)=360千米。甲车行4+3=7小时行了全程的(360-10)÷360=35/36，所以，甲车行完全程需要7÷35/36=7.2小时。乙车7小时行了全程的(360-80)÷360=7/9，所以乙车行完全程需要7÷7/9=9小时。所以甲车到达时，乙车还需要9-7.2=1.8小时。 解法三：两车行4+3=7小时，甲车比乙车多行80-10=70千米。甲车每小时比乙车多行70÷7=10千米。如果再行1小时，那么甲车比乙车就多行70+10=80千米，而且甲车和乙车共行了两个全程。所以，甲车超出部分和乙车还差的部分相等，即80÷2=40千米。所以，乙车需要80÷40=2 小时到达。甲车之需要10÷(10+40)=0.2小时到达。所以当甲车到达时，乙车还需要2-0.2=1.8小时。 182. 甲、乙两个长方体水池装满了水，两水池的高相等.已知甲池的排水管10分钟可将水排完，乙池的排水管6分钟可将水排完.问同时打开甲、乙两池的排水管，多长时间后甲池的水位高正好是乙池水位高的3倍? 解法一：把满池水看作10×6=60份。甲池每分钟排6份，乙池每分钟排10份。每个小时相差10-6=4份。甲池剩下的是乙剩下的3倍，说明甲乙两池之差是乙剩下的2倍。所以乙池排了的部分是乙池剩下的2÷4×10=5倍。所以乙池排了5÷(1+5)=5/6。即60×5/6=50份，所以，需要的时间是50÷10=5小时。 解法二：甲池和乙池排水相差1/6-1/10=1/15，相差部分占甲池排水的1/15÷1/10=2/3。甲剩下的看作单位"1"，那么相差就是 1-1/3=2/3。所以甲池排出的是剩下的2/3÷2/3=1倍，说明刚好排了1/2，所以所用的时间是10×1/2=5小时。
应用题综合训练2 11. 师徒二人共同加工170个零件，师傅加工零件个数的1/3比徒弟加工零件个数的1/4还多10个，那么徒弟一共加工了几个零件？ 给徒弟加工的零件数加上10*4＝40个以后，师傅加工零件个数的1/3就正好等于徒弟加工零件个数的1/4。这样，零件总数就是3＋4＝7份，师傅加工了3份，徒弟加工了4份。 12. 一辆大轿车与一辆小轿车都从甲地驶往乙地.大轿车的速度是小轿车速度 的80%.已知大轿车比小轿车早出发17分钟，但在两地中点停了5分钟，才继续驶往乙地；而小轿车出发后中途没有停，直接驶往乙地，最后小轿车比大轿车早4分钟到达乙地.又知大轿车是上午10时从甲地出发的.那么小轿车是在上午什么时候追上大轿车的. 这个题目和第8题比较近似。但比第8题复杂些！ 大轿车行完全程比小轿车多17－5＋4＝16分钟 所以大轿车行完全程需要的时间是16÷（1－80％）＝80分钟 小轿车行完全程需要80×80％＝64分钟 由于大轿车在中点休息了，所以我们要讨论在中点是否能追上。 大轿车出发后80÷2＝40分钟到达中点，出发后40＋5＝45分钟离开 小轿车在大轿车出发17分钟后，才出发，行到中点，大轿车已经行了17＋64÷2＝49分钟了。
说明小轿车到达中点的时候，大轿车已经又出发了。那么就是在后面一半的路追上的。 既然后来两人都没有休息，小轿车又比大轿车早到4分钟。 那么追上的时间是小轿车到达之前4÷（1－80％）×80％＝16分钟 所以，是在大轿车出发后17＋64－16＝65分钟追上。 所以此时的时刻是11时05分。 13. 一部书稿，甲单独打字要14小时完成，，乙单独打字要20小时完成.如果甲先打1小时，然后由乙接替甲打1小时，再由甲接替乙打1小时.......两人如此交替工作.那么打完这部书稿时，甲乙两人共用多少小时？ 甲每小时完成1／14，乙每小时完成1／20，两人的工效和为：1／14＋1／20＝17／140； 因为1／（17／140）＝8（小时）......1／35，即两人各打8小时之后，还剩下1／35，这部分工作由甲来完成，还需要： （1／35）／（1／14）＝2／5小时＝0.4小时。 所以，打完这部书稿时，两人共用：8＊2＋0.4＝16.4小时。 14. 黄气球2元3个，花气球3元2个，学校共买了32个气球，其中花气球比黄气球少4个，学校买哪种气球用的钱多？
20XX 年秋季初一升初二数学衔接·第9讲 ——轴对称和轴对称图形（八年级12章） 【知识要点】 如果一个图形沿一条直线折叠后，直线两旁的部分能够互相重合，那么这个图形叫做轴对称图形，这条直线叫做对称轴． 对于两个图形，如果沿一条直线对折后，它们能完全重合，那么称两个图形成轴对称，这条直线就是对称轴． 角的平分线上的点到这个角的两边的距离相等． 线段垂直平分线上的点到这条线段两个端点的距离相等． 等腰三角形是轴对称图形． 等腰三角形顶角的平分线、底边上的中线、底边上的高重合（也称“三线合一”），它们所在的直线都是等腰三角形的对称轴． 等腰三角形的两个底角相等． 如果一个三角形有两个角相等，那么它们所对的边也相等． 对应点所连的线段被对称轴垂直平分． 对应线段相等，对应角相等． 【典型例题】 例1 下列的对称图形各有几条对称轴？请画出它们的对称轴． 分析：如果一个图形沿着一条直线折叠后，直线两旁的部分能够互相重合，这个图形就是轴对称图形．这条直线就是对称轴． 解：图（1）有3条对称轴；图（2）有6条对称轴；图（3）有5条对称轴； 图（4）有4条对称轴；图（5）有1条对称轴；图（6）有2条对称轴． 画出对称轴如下列所示： 例2 已知等腰梯形两个内角之比为1：4，求这个等腰梯形的顶角． 分析：因为等腰三角形两底角相等．可设三角形两内角分别是x 度、4x 度，那么另一个角可能是x 度或4x 度，由三角形内角和为180o，可求解． 自我解答： 解：设这个等腰三角形两个内角分别是x 度、4x 度． （1）若x 度的角为顶角时， 因为等腰三角形两底角相等，则这个三角形的第三个角是4x 度， 由x ＋4x ＋4x ＝180o，求得x ＝20o， ∴顶角为20o； （2）若4x 度的角为顶角，则这个三角形的第三个角是x 度， 由4x ＋x ＋x ＝180o，求得x ＝30o，则4x ＝120o， ∴顶角为120o； 例3 如图，△ABC 中，AB ＝AC ，EF 是腰AB 的垂直平分线，交另一腰AC 于点D ，若BD ＋CD ＝10cm ，求AB 的长． 分析：线段垂直平分线上的点到线段两端点的距离相等，知AD ＝BD ． 自我解答： 解：∵EF 是AB 的垂直平分线，且D 是EF 上一点， ∴AD ＝BD （线段垂直平分线上的点到这条线段两个端点的距离相等） ∴AC ＝AD ＋CD ＝BD ＋CD ＝10cm ， ∵AB ＝AC ， ∴AB ＝10cm ． 例4 如图，在△ABC 中，AB ＝AC ，D 是BC 边上的中点，∠B ＝30o．求∠BAD 和∠ADC 的度数．
第四讲 小升初阅读能力提升+综合训练 （一） ——找线索 一、什么是线索？ 线索，指贯穿于整篇文章的思路、脉络等，是在文章中起连贯作用的。阅读文章时，抓住了线索，就容易掌握段落结构，领会中心思想。 1．以事情发展顺序为线索。 2．以特殊的时间为线索 3．以地点变换的顺序作线索。 4．以具体的事物为线索。 5．以中心事件为线索。中心事件在文章中起主干作用，围绕它来写一些相关的事。 1、并不是所有的文章都只有一条线索，有的文章是双线并行甚至是三条线索展开的。 2、有几条线索组成的文章，往往有一条是主线。 3、有的文章虽然也有两条线索，但一条线索是明的，另一条是暗的，如《少教主传功 精灵小棒槌
年闰土》这篇文章，明线是在写闰土的特点，暗线写出了“我”思想感情的变化。 二、如何找到线索 小精灵笔记 能力提升 枣核 萧乾 动身访美之前，一位旧时同窗写来一封航空信，再三托付我为他带几颗枣核，东西倒不占分量，可是用途却很蹊跷。 一下车，他已经在站上等着了。拥抱之后，他就殷切地问我：“带来了吗？”我赶快从手提包里掏出那几颗枣核。他托在掌心，像比珍珠玛瑙还贵重。 他当年那股调皮劲还没改。我问起枣核的用途，他一面往衣兜里揣，一边故弄玄虚地说：“等会儿你就明白啦。” 到他家里后，他把我安顿好，就领我去踏访他的后花园。地方不大，布置得却精致匀称。我们在靠篱笆的一张白色长凳上坐下，他劈头就问我：“觉不觉得这花园有点家乡的味道？”经他指点，我留意到台阶两旁是他亲手栽的两株垂杨柳，草坪中央有个睡莲池。他感慨良深地对我说：“栽垂柳的时候，我那个小子才5岁。如今在一条核潜艇上当总机械长了。姑娘在哈佛教书。家庭和事业都如意，各种新式设备也都有了。可是我心上总像是缺点什么。也许是没有出息，怎