七下英语课课练答案 Unit 5 Why do you like pandas? 一、单项选择 1. The old dog is kind of scary, but she is _____ to us. She is our ______. A. friendly; friendly B. friend; friend C. friendly; friend D. friend; friendly 2. You look so _____. Did you see anything _____? A. scary; scared B. scared; scary C. scare; scary D. scare; scared 3. (xx·安徽) Mrs. King put a coat _____ the sleeping girl to keep her warm. A. over B. with C. behind D. beside 4. ---How about having a piic with me? ---I’d love to, _____ I’m afraid I have no time. A. so B. and C. but D. because 5. ---Let’s go to the park on Sunday afternoon. ---______. A. That sounds interesting. B. Thanks a lot. C. Yes, we are. D. That’s all right. 6. (xx·贵州黔西南A. dangerous B. safe C. safely D. in danger 7. We have two _____ jobs for you. They are _____ interesting.
2020苏教版七年级上册数学课课练答案一：选择题 1 ----------5：ACADC 6 -------------10：ADBDB 二：填空题 11、-5℃ 12、 13、-1，0，1，2，3 14、右 15、25 16、-117 17、略 18、 19、 20、122 三：解答题 21、(1)-900(2)-10(3)(4)31 22、图略④ > ⑤ > ⑥ > (2)当时， (3)> 四：附加题 1、C 2、0或-2 一、选择题 1、A 2、D 3、C 4、A 5、C 6、B 7、A 8、C 9、D 10、B 二、填空题 11、±8 12、m=3,n=2 13、(1-12%)a 14、 三、15(略) 16、①17 ②-12 ③- 17、①+13x2y-13xy2 ②-2x2+7xy-24
18、化简结果为：-4x+2y，代入得：原式=10 19、①15-2+5-10+10-3-8+12+4-5+6=24(千米) ∴小李距下午出车时的出发点的距离为24千米 ②行车里程为：15-(-2)+5-(-10)+10-(-3)-(-8)+12+4-(- 5)+6=80(千米) 共耗油80×3升官240升 剪的次数 1 2 3 4 5 正方形个数 4 7 10 13 16 20、① ② 3×100+1=301(个) ③ 小正方形个数：3n+1
④ 每剪一次，所得正方形面积是原正方形面积的等 B卷 四、填空题 21、xy=-6 22、m+n=7 23、-2 24、2020 五、解答题 25、①-13 ②(-x2+3xy-y2)-(-x2+4xy-y2)=- x2-xy+y2 26、①+0.4-0.3-0.4-0.3+0.2+0.1+0.2=-0.1 即周末水位与上周日12时相比下降了0.1米 星期 一 二 三 四 五 六 七 水位/米 3.4 3.1 2.7 2.4
课课练初中英语七年级上册答案 当你觉得自己满怀希望，对未来充满信心，别人看到的就是有魅力，风华绝代的你。没有人可以你的高度，只有你自己可以，学好是基础。下面就是为大家梳理归纳的内容，希望能够帮助到大家。 一.1-5.CBCCA 6-10.BACAB 11-15.ABBCC 16-20.BACCA 二.1-5.BBADC 6-10.DCADC 11-15.CBACC 16-20.DDDCC 三.1- 5.BCDAA 6-10.ADBDC 11-15.CABDC 四.1-5.DCDAB 6-10.ACBBD 11-15.CDBDB 16-20.DADCB 五.1.There used to be a river in front of my house. 2.home 3.但是现在随着村子的发展，一切都发生了很大的变化。 4.Because the trees have been cut down. 5.But now,with the development of my village,everything has changed a lot.
六.1.southern 2.impossible 3.action(s) 4.taking 5.harmful 6.have taught 7.factories 8.attraction 9.marriage 10.clapped 11.development 12.Unluckily 13.natural 14.unpleasant 15.was having 七.took excited more view wonderful theme gift also enjoyed visit 一、题目略 1、mymother 2、hissisters 3、haveagoodday 4、youruncle 5、thesefriends
七年级下册英语课课练习 Module 7 检测题 （满分：120分） 第一卷（共50分） Ⅰ.选择填空(20分) ( ) 1.－__________ were you like when you were a kid? －I was quiet. A. How B. Why C. Where D. What ( ) 2. Was he at home __________? A. now B. next week C. last weekend D. next Sunday ( ) 3.－When and where__________ you born? －I__________ born in Dalian__________ November 15, 1997. A. was, were, at B. were, was, on C. was, was, on D. were, was, in ( ) 4. There__________ no time to have breakfast. A. have B. was C. had D. were ( ) 5. He enjoys__________ books. A. read B. reads C. reading D. to read ( ) 6. There are two books to__________. A. look B. watch C. see D. read ( ) 7. China is a country__________ the population of 1.3 billion. A. have B. has C. with D. own ( ) 8. I’m looking forward to__________ you again. A. see B. seeing C. look D. looking ( ) 9. Do you have__________ to tell me? A. anything new B. something new C. something new D. new something ( ) 10. There are two windows__________ the wall. A. in B. on C. at D. under ( ) 11. Was Ningning born in Yangzhou? . She was born in Nanjing. A. Yes, she was. B. No, she wasn’t C. Yes, she wasn’t D. No, she was ( ) 12. —When Jay Chou born? —He born 18th July, 1980. A. was, were, in B. were, was, in C. were, was, on D. was, was, on ( ) 13. He got up late this morning. There__________ no time to have breakfast. A. have B. had C. was D. were ( ) 14. Qingdao is on the ________ coast of China. A. west B. east C. south D. north ( ) 15. —was your first friend? —Jim. A. What B. How C. Who D. When ( ) 16. Our math teacher was very strict _________ us and _________ his work. A. with, in B. with, with C. in, in D. in, with ( ) 17. Three years ago, I ________in a primary school and now I _______ in a middle school. A. was, was B. am, am C. was, am D. am, was ( ) 18. My cousin was _________ with the _________ movie.
初三（上）数学课时练参考答案 第二十二章 二次根式 第1课时 二次根式（1） 1、B 2、C 3、C 4、D 5、14.3;12;7;5;;4 3;95;3.02 --πb a 6、a ≥0; ≤2 7、a ≥0 8、1 9、13 10、2 11、D 12、（1）X ≤ 43；（2）X ＜1；（3）X ≥2 1 且X ≠2 13、m=2，n =-1，mn m =2 14、x=2,y=4,2x-y=0 15、∵ a-2009≥0 ∴ a ≥2009 由题意有a a a =-+-20092008 ∴ 20082009=-a ∴ a-2009=20082 ∴ a-20082 =2009 第2课时 二次根式（2） 1、C 2、C 3、8；4；2 4、a ，53 2 -- 5、0；10 6、-4 7、)2)(2)(2();3)(3(2-++-+x x x x x 8、D 9、1 10、6-x 11、12 +a 12、(1)(x+1)(x-1)(x+2)(x-2) (2)(x-2-5)(x-2+5)=0 13、2a+2b+2c 第3课时 二次根式的乘法 1、（1）23 （2）9 (3) 8 (4) 310 2、A 3、B 4、(1)4a （2）y x （3）y xy 34 5、C 6、1 7、(1)2a b (2)3+2x 8、（1）略 （2）1 )1(1 )1(1)1(1)1(2 2-++++=-+++n n n n n n 9、-2 第4课时 积的算术平方根 1、23；18；30；182；34；0.07；15；3122m ； 144 2、a ≥0，且b ≥0
3、D 4、（1）242 b a （2）13 （3）120 5、C 6、（1）2； （2）54a 2 b ； （3）m 4 -n 4 7、（1）<（2）< 8、5 第5课时 二次根式的除法（1） 1、4，5，x 32 2、-15 11 3、C 4、C 5、m=1或0,n=1或0 6、2 6 ; 46;22 7、23;12-+ 8、231;13+-- 9、D 10、B 11、（1）-4x （2） y x 6 （3）xy x y 222 （4）xy 241 （5）1 （6） 2 2 12、面积约为350，故投资为3500，约为872元。 第6课时 二次根式的除法（2） 1、23;32- 2、（1） 34 3 （2）2 3、C 4、B 5、B 6、（1）10 10 （2）x （3）532- （4）10 7、1 8、21-- 七年级英语上册课课练 Unit 7 主备人刘彦平审核人王爱琴第 1 课时 Ⅰ．单词检测 1．毛衣______ 2.裙子______ 3.颜色_______ 4. 价格______ 5.任何人______ 6.每个_______ Ⅱ．用划线词的反义词填空 7．Bring your math book here and ________ away your exercise books. 8．I like short hair. I don’t lik e ________ hair. 9．My shoes are too old. I want to buy ________ ones. 10．The store sells school things. You can ________ some coloured pencils there. 11．I think this book is very easy and that book is very ________. 12．Watching TV is too boring. But playing sports is very ________. 13．His first name is John and his ________ name is Green. 14．The shirt is too big for me. Give me a ________ one, please. 15．The blackboard is black. The words on it are ________. Ⅲ．用英文数字填空 16．four + eight = ___________ 17．seven + eight= ___________ 18．thirteen + seven = __________ _ 19．fourteen + sixteen = ___________ 20．seventy - fourteen = ___________ 21．eighty - sixteen = ___________ 22．sixty - thirteen = ___________ 23．eighty - forty= ___________ 24．forty-eight - twelve= ___________ 25．ninety + five = ___________ Ⅳ．将下列短语译成英语 26．各种颜色的___________ 27．运动包___________ 28．亲自___________ 29．看一看___________ 30．出售___________ 31．价格合理___________ 32．服装店___________ 33．到达___________ 34．愿意……便宜___________ 35．不只这些___________ 英语课课练答案-初一英语课课练答 案 2016-2016学年梁丰初中初二英语第一次课堂练习(含答案) 梁丰初中15-16学年第一学期初二年级 英语学科第一次课堂练习卷姓名：得分： 一、单项选择(共15分) ()1. Shanghai is bigger than______in Jiangsu and bigger than______in China. A. any city, any city B. any city, any other city C. any other city, the other cities D. any other city, any city () have money than you, but I have friends than you. A. more; more B. less; more C. fewer; more D. more; less ()3. ______ you are, _____ mistakes you’ll make. A. The more careful, the fewer B. More careful, the less C. The more careless, the less D. More careless, fewer ()4. Last year this piece of music ___him ______one of the most famous singers. A. makes, become B. make, become. C. made, became D. made, become ( )5. ---Would you like ______ milk in your coffee? ---Yes, just _______. A. any, a few B. some, a little C. any, a little D. some, a few ( ) had a wonderful time ___one place after another in Beijing and hehad much time _____the city. A. to visit, to enjoy B. visiting, to enjoy C. to visit, enjoying D. visiting, enjoying () 7. I think swimming is _________hiking. A. as interesting than B. as more interesting as C. as Unit 12 Section A（1a-2c）同步练习 一、用所给汉语的正确形式填空 1. They __________ (扎营) in the open air last night. 2. Miss Lin is a guide at the __________ (自然的) History Museum. 3. Mom worked all day and she is very __________ (疲劳的)now. 4. She had to s __________ at home because it rained yesterday. 二、用适当的形式填空 1. There are some ___________(beach) by the sea. 2. Did you feed these ___________(sheep)? 3. Many __________(visit)came to Beijing to visit the Great Wall. 4.Jane saw many___________（butterfly）in the garden just now. 5.What _____ you _____(do) last Friday? I______(go) to the movies 6.Li Lei _______(study)geography yesterday. 三、单选 1. Tom played____badminton with his friends yesterday afternoon. A.a B. the C.\ D. an 2. I often do my homework and read books ____Saturday morning. A .on B .inC. atD .by 3.How do you study _______your test. A. at B. with C.in D.for 4.Could you tell me something about your_____? 五年级下册 参考答案 一、简易方程 【点击课堂】 第1页二、x＋36＝904x＝1003x＋3.5＝17.63x＝150 第2页四、 1. x－150＝600x＝750 2. 138－x＝16x＝122 第3页一、 1. × 2. √ 3. √ 4. × 二、5160 6.9 4.3 第4页四、 1. 5x＝120x＝24 2. 8x＝520x＝65 3. x÷4.5＝80x＝360 第5页二、 1. 4x＝5.6x＝1.4 2. 3x＝60x＝20 三、 1. 2.5x＝800x＝320 2. 6.5x＝520x＝80 第6页三、 1. 0.05千克 2. 100元 第7页三、 1. 13.5米 2. 1.5千米 3. 略 第8页一、 1. 2x＋9 2. 2a－4531 第9页二、 1. ＝＜ 2. ＞＜ 3. ＜＞ 第10页二、 1. 3x＋16＝106x＝30 2. (x＋2.4)×1.5÷2×2＝5.4x＝1.2 第11页一、1. 4x5x3x 2. 2a4a 第12页三、 1. 3小时 2. (1)1.5元(2)1.5元 3. 102千米或92千米 第13页一、 1. 1.5x 2.5x0.5x 2. a＋2a＋4 第14页一、 1. × 2. × 3. √ 4. × 四、 1. (1)70页(2)8米 2. 56千瓦·时 3. 83千米 第15页二、 1. 6棵 2. 3分钟 3. 小强：9岁妈妈：36岁 4. 5米 5. 0.44米 第16页三、 1. 140千米 2. 小丽：12岁爸爸：48岁 3. 25千克【拓展应用】 第1页1(等式)2(等式) 第2页 1. 3 2. 3 第3页(1)上衣价钱＋裤子价钱＝175元x＋68＝175(2)175元－上衣价钱＝裤子价钱175－x＝68 第4页15 第5页○＝6△＝0.4 第6页1617 第7页65 第8页9岁 第9页50元 第10页30 第11页小明15岁，爸爸48岁，妈妈39岁 第12页李乐14岁，爸爸42岁 第13页0.16 第14页(x－1)＋x＋(x＋1)＝69，x＝23，另两个数为22和24。 第15页 4.8厘米 第16页1元75枚，5角25枚 【单元练习】 二、 1. × 2. √ 3. √ 4. √ 5. × 三、 1. B 2. B 3. C 4. A 5. A 四、x＝0.64x＝21.6x＝4.5x＝6x＝3x＝1.8 五、 1. x＝6.4 2. x＝60 3. x＝12 4. x＝12 5. x＝4.5 6. x＝3 六、 1. 170名 2. 3米 3. 92棵 4. 60米 5. 4.8厘米 6. 95千米7. 第一堆200吨，第二吨115吨8. 0.52元9. (1)钢笔买了多少支？20支(2)圆珠笔的单价是多少元？1.5元 Starter Unit1 Good morning! 课课练测 Section A Ⅰ写出下列字母的左邻右舍，注意字母的大小写： 1、 B 2、 d 3、 f 4、 E 5、 C 6、G Ⅱ按要求写出字母的大小写 1、英语字母表中的第5个字母是。 2、字母A—H中能独立成词的字母是。 Ⅲ按要求完成下面问题 1、按字母表顺序排列下列大写字母 D C E H G B F 2、按字母表顺序写出以下字母的小写形式 Ⅳ单项选择题： （）1、将下列字母按其在字母表中的顺序排列，错误的是 A、DEF B、ABC C、ADF D、CFD （）2、在字母A—H中，两个元音字母是 A、AC B、BE C、AE D、EH （）3、表示铅笔笔芯“硬黑”的字母是 A、HB B、CD C、BBC D、IBM （）4、/si:/是下面哪个字母的发音 A、Bb B、Cc C、Dd D、Ee （）5、—Hello Jim! —，Li Ming! A、Good B、How C、Hello D、Ok （）6、当你在吃过晚饭后遇见老师时，应该怎样打招呼？ A、Good morning! B、Good afternoon! C、Good evening! D、Good night! （）7、当你的同学问候你时说：“Good afternoon!” 你的回答应是“！” A、Good morning! B、Good afternoon！ C、Good evening! D、Good night! Ⅴ从B栏中找出A栏各句的答语 A B （）1、Good morning ,Eric! A、Good afternoon, Bob! （）2、Good evening，Cindy! B、Good morning, Frank! （）3、Hello, Helen! C、Good evening, Dale! （）4、Good afternoon, Grace! D、Hi, Alice! Ⅵ根据句意及首字母提示补全单词 1、G morning Bruce! 2、Good a , Amy! 3、Good e , Alice! 初一英语课课练答案 Document serial number【NL89WT-NY98YT-NC8CB-NNUUT-NUT108】 一用所给词的适当形式： 1.Sheliveswithherfamilyina house.(wood) 2.AllthepeopleinNanjingarevery (friend). 3.Peopleliketotalkwitheachotherinthe room.(sit) 4.Theywanttolearnabouthomesindifferent (country). 5.Ourflathastwo .(balcony) 6.Doyouknowwho’s onmybunk?(lie) 7.Iwouldliketolivenextto restaurantinBeijing.(big) 8.Frenchmencomefrom (French). 9.Inthe roomthereisabigtable.(dine) 10.Shepassedtheexam .(final) 二根据所给的汉语完成句子： 1.她和她的家人住在一条繁忙街道上的一套公寓里。 Sheandherfamily . 2.我们的老师很友好，我们在学校里很开心。 Ourteachers .We . 3.这儿环境优美安静，但经常下雨。 It’s and here,butitoften . 4.花园是做游戏最好的地方。 Agardenis . 5.他们想了解世界上一些国家的首都。 Theywantto the ofsome intheworld. Unit1Dreamhomes练习题（2） 一根据句意所给首字母： 1.Weoftenputourcleanclothesinthew inthebedroom. 2.Therearemanybooksontheb inthestudy. 初一下册英语课课练答案参考2020一用所给词的适当形式填空： 1. She lives with her family in a house .( wood 2.All the people in Nanjing are very (friend). 3.People like to talk with each other in the room. (sit 4.They want to learn about homes in different 5.Our flat has two .(balcony restaurant in Beijing.(big French). .(final) 6.Do you know who’s on my bunk?( lie) 7.I would like to live next to 8.Frenchmen come from 10.She passed the exam 二根据所给的汉语完成句子： 1.她和她的家人住在一条繁忙街道上的一套公寓里。 She and her family 2.我们的老师很友好，我们在学校里很开心。 Our teachers . We . . (country). 9.In the room there is a big table.(dine 3.这儿环境优美安静，但经常下雨。 I t’s and here, but it often . 4.花园是做游戏的地方。 A garden i 5.他们想了解世界上一些国家的首都。 They want to the of some in the world. . Unit 1 Dream homes练习题（2） 一根据句意所给首字母填空： 1.We often put our clean clothes in the w 2.There are many books on the 3.In summer we take a 4.We wash dishes in the 5.It’s dark in the study. The l in the bedroom. in the study. in the bathroom everyday.. in the kitchen. is broken. I’ll ask someone to mend it. room. 6.Mothers often use b to give their babies baths. 7.There are four chairs around the t 8.We usually put the sofa in the 9.We can’t see any w houses in the small town. 10.There are some c on the sofa. 二根据句意,用适当的介词填空： 1.There is a lamp the desk my study. 2. Her printer is her computer. 3. He is shorter than Bob and Peter. He sits them. 4.The shelf i Unit 7 课课练 Seasons Period 1Comic strip ＆welcome to the unit 一、根据句意，首字母或汉语提示完成单词 1. The weather forecast says it will be r__________ tomorrow. 2. It is snowing heavily. Tomorrow will be a s_________ day. 3. There are four s_________ in a year. 4. I don't know how they get through these _________(寒冷) winters. 5. You look very _________(酷) in the black coat. 6. You’d better drive slowly on _________(有雾的) days. 二、单项选择 ( )1. There are many mobile phones in the shop. Which one do you like____? A. good B. well C. better D. best ( )2. _______is my favourite season because I like swimming. A. Spring B. Summer C. Autumn D. Winter ( )3. This is not the _______ for peaches. A. day B. week C. season D. month ( )4. If you like basketball, you may enjoy ______ it even on hot day. A. practise B. to practise C. practises D. practising ( )5. Thank you for ______ let me _______ on the trip today. A. agree to, go B. agreeing, going C. agreeing to, go D. agree, to go ( )6. Everything is OK. We are ready ______ work. A. to start B. for start C. start D. starting ( )7. Mr Smith spent more than 10 years ______ the weather in Tibet. A. study B. to study C. studying D. studied 三、同义句转换 1. There will be fog tomorrow. It will be_______ _________ ________ tomorrow. 2. Autumn is my favourite season. I ________ autumn _________. 3. It is so cold that I don't want to play outside. It is _______ cold for me _______ play outside. 4. Who can bring me my newspaper? Who can bring my newspaper_______ _______? 课时练七年级上册数学答案 【篇一：人教版七年级数学上册《有理数》每课时练习 非常全】 ．如果向南走5米，记作+5米，那么向北走8米应记作 ___________． 2．如果温度上升3℃记作+3℃，那么下降5℃记作 ____________． 3．海拔高度是+1356m，表示________，海拔高度是-254m，表示______． 5．6，2005，，0，-3，+1，，-6.8中，正整数和负分数共有…〖〗 a．3个 b．4个 c．5个 d．6个 6．如果全班某次数学测试的平均成绩为83分，某同学考了85分，记作+2分，得分90分和80分应分别记作 _________________________． 8．如果把+210元表示收入210元，那么-60元表示 ______________． 9．粮食产量增产11％，记作+11％，则减产6％应记作 ______________． 11．如果向西走12米记作+12米，则向东走-120米表示的意义是___． 16．在市场经济中，利润计算公式是：利润＝销售收入－销售成本，小亮利用此公式计算爸爸经营的商店在某一天的利润为-25元，请问：-25元的利润是什么意义？ 18.在下列横线上填上适当的词,使前后构成意义相反的量: (1)收入1300元, _________800元; (2) _________80米,下降64米; (3)向北前进30米, _________ 50米. 1.2有理数练习 一、判断 1﹝﹞ 2﹝﹞ 3﹝﹞ 4﹝﹞﹝﹞ 6﹝﹞ 7 ﹝﹞ 8 ﹝﹞ 9﹝﹞ 二、填空 1、某日，泰山的气温中午12点为5℃，到晚上8点下降了6℃.那 么这天晚上8点的气温为。 2、如果零上28度记作28c，那么零下5度记作 3、若上升10m 记作10m，那么－3m表示 4、比海平面低20m的地方，它的高度记作海拔 三、选择题 5、在－3，－1 新人教版七年级上册英语第七单元精选练习题附答案 Unit 7How much are these socks? 第一课时Section A(1a～2e) 01基础过关 Ⅰ.根据句意及图片提示填写单词。 (1题图) (2题图) (3题图) (4题图) (5题图) 1.His brother's ________ are black. 2．The red ________ is Mike's.It's very nice. 3．Sally's yellow ________ are on the sofa. 4．What color is your brother's ________，Alan? 5．That green ________ is only 15 dollars. Ⅱ.根据句意及汉语提示填写单词。 6．The ________(鞋) are very nice.I like them. 7．—Can I help you? —Yes. I ________(需要) a bag for school. 8．Jack，do you know the two ________(女子)? 9．We will ________(买下) two red cups. 10．I don't like the small T－shirt.I like the ________(大号的) one. Ⅲ.单项选择。 ()11.－How about this blue skirt? －It's too________.I want a long one. A．big B．tall C．short D．fat ()12.My T－shirt ________ blue and my shorts ________ black. A．is；is B．are；are C．are；is D．is；are ()13.—________ is that jacket? —________ 80 dollars. A．How much；It's B．How much；They're C．What color；It's 第一章有理数 时间：60分钟实际完成时间：______分钟总分：100分得分：______ 一、选择题(本大题共10小题，每小题3分，共30分．在每小题的4个选项中，只有一项是符合题目要求的，请将正确答案的代号填在题后括号内) 1．下列说法中不正确的是()． A．－3.14既是负数，分数，也是有理数 B．0既不是正数，也不是负数，但是整数 C．－2 000既是负数，也是整数，但不是有理数 D．0是正数和负数的分界 2．－2的相反数的倒数是()． A．2 B．1 2 C． 1 2 -D．－2 3．比－7.1大，而比1小的整数的个数是()． A．6 B．7 C．8 D．9 4．如果一个数的平方与这个数的差等于0，那么这个数只能是()．A．0 B．－1 C．1 D．0或1 5．我国最长的河流长江全长约为6 300千米，用科学记数法表示为()．A．63×102千米B．6.3×102千米 C．6.3×104千米D．6.3×103千米 6．有理数a，b在数轴上的位置如图所示，下列各式正确的是()． A．a＞0 B．b＜0 C．a＞b D．a＜b 7．下列各组数中，相等的是()． A．32与23B．－22与(－2)2 C．－|－3|与|－3| D．－23与(－2)3 8．在－5， 1 10 -，－3.5，－0.01，－2，－212各数中，最大的数是()． A．－12 B． 1 10 - C．－0.01 D．－5 9．如果a＋b＜0，并且ab＞0，那么()． A．a＜0，b＜0 B．a＞0，b＞0 C．a＜0，b＞0 D．a＞0，b＜0 10．若a表示有理数，则|a|－a的值是()． A．0 B．非负数 C．非正数D．正数 二、填空题(本大题共8小题，每小题3分，共24分．把答案填在题中横线上) 11． 1 2 3 -的倒数是________， 1 2 3 -的相反数是______， 1 2 3 -的绝对值是________． 12．在数轴上，与表示－5的点距离为4的点所表示的数是____________．13．计算：－|－5|＋3＝__________. 所以－5＋3＝－2. 14．观察下面一列数，根据规律写出横线上的数1， 1 2 -， 1 3 ， 1 4 -…，第2 013个数是________． 15．比 1 3 2 -大而比 1 2 3 小的所有整数的和为________． 16．若|x－2|与(y＋3)2互为相反数，则x＋y＝__________. 17．近似数2.35万精确到__________位． 18．对于任意非零有理数a，b，定义运算如下：a b＝(a－b)÷(a＋b)，那么(－3)5的值是 七年级英语6A班家庭作业 第一次家庭作业 （一）根据句意及首字母完成单词。 1. What’s y name? My name is Gina. 2. I’m Gina. Nice to m you. 3. Two and seven is n . 4. W her telephone number? 5. Can I ask you a q ? 6. His p number is 58764321. 7. What’s h first name? 8. What’s her f name? It’s Green. 9. L ! That’s a kite.10. I’m a middle school s. （二）写出下列词的相应形式。 1．hello(近义词) ________________ 2. first(反义词) ________________ 3．boy(对应词) ________________ 4. two(同音词) ________________ 5．ask (反义词) ________________) （三）改错。 1. What’s he name? () A B C 2. Her name is Steve. ( ) A B C 3. What’s is your phone number? ( ) A B C 4. Tom’s family name is Tom. ( ) A B C 5. “Hello, Tim!” “Fine, David!”( ) A B C （四）交际用语搭配 I II ( )1. Nice to meet you! A. Jenny. ( )2. What’s her name? B. 021-*******. ( )3. What’s your telephone number? C. Nice to meet you ,too! ( )4. How do you do? D. Washington. ( )5. What’s your family name? E. How do you do 家长签字：七年级英语上册课课练 Unit 7
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