大学英语小练习（附答案）
选择题
1.I was speaking to Jane on the phone when suddenly we were ____.
A.cut off
B.cut down
C.cut back
D.cut out
2.Peter complained to the owner of the bookstore that there were some pages ____ in the dictionary.
A.losing
B.missing
C.dropping
D.failing
3.The shop assistant was straightforward with her customers,if an article was of ____ quality she’d tell them so.
A.miserable
B.minor
C.subordinate
D.inferior
4.With all its advantages, the laptop is by no means
without its ____.
A.limitations
B.boundaries
C.restraints
D.confinements
5.Look at the photo and you’ll find Diana ____ her father.
A.takes to
B.takes after
C.takes for
D.takes over
6.I want to buy a new tie to ____ this brown suit.
A.go into
B.go after
C.go by
D.go with
7.He ____ his lessons about Italy with photographs of the people who live there.
A.illustrated
B.cited
C.quoted
D.explained
8.In addition to rice,we need to ____ our diet with fish,meat and vegetable.
A.replace
B.supplement
C.replenish
D.mix
9.What he has done is ____ the doctor’s orders.
A.subject to
B.opposite
C.resist to
D.contrary to
10.The survival ____ of some wild animals is not very high because they are ruthlessly hunted for their skins.
A.ratio
B.degree
C.rate
D.scale
11.Tim is good,smart and hardworking.____,I can’t speak too highly of him.
A.As a result
B.In a word
C.By the way
D.On the contrary
12.What she told me about the affair simply does not make any ____.
A.idea
B.sense
C.meaning
D.significance
13.Let us try to use our intellect to the ____.
A,fullest benefit B.best use C.highest profit D.greatest advantage
14.Why can’t you do this small ____ for me?I often helped you in the past.
A.demand
B.request
C.favor
D.requirement
15.Paper clips,drawing pins and safety pins were ____ all over the floor.
A.scattered
B.sprayed
C.dispersed
D.separated
16.I know you think I’m talking nonsense,Tom,but ____ you’ll realize that I was right.
A.at one time
B.in time
C.at times
D.on time
17.A new system of quality control was ____ to overcome the defects in the firm’s products.
A.installed
B.introduced
C.inserted
D.invested
18.Near the scene of the crime,the police arrested two men whose behaviors appeared _____.
A.ambitious
B.doubtless
C.suspicious
D.notorious
19.The general ____the success by attacking the enemy on all fronts.
A.resumed
B.pursued
C.continued
D.followed up
20.The discovery of new facts _____ rational thinker to reexamined the adequacy of his previous generalizations.
https://www.doczj.com/doc/bc6655173.html,/doc/77dc1de74028915f81 4dc209.htmlpelled
B.repelled
C.expelled
D.constrained
21.Only when capitalism has been ____ will it possible to ____ poverty ,unemployment and war.
A.abolish abolish
B.abandoned abate
C.annihilated ban
D.extinguished extinguish
https://www.doczj.com/doc/bc6655173.html,/doc/77dc1de74028915f81 4dc209.htmlpetition, they belive,____ the national character rather than corrupt it.
A.enforces
B.confirms
C.drives
D.promotions
23.She come to my office to ask me for advice ____ how to write an essay.
A.as for
B.as to
C.as on
D.as about
24.The weatherman broadcasts the ____ in temperature twice a day.
A.diversion
B.variation
C.variety
D.modification
25.He ____ as a rich man though he owned more than he owned.
A.posed
B.served
C.disguised
D.pretended
26.She cut her hair short and try to ____ herself as a man.
A.decorate
B.disguise
C.fabricate
D.fake
27.The change in government is a(n) ____ event of our time.
A.historic
B.historical
C.permanent
D.eternal
28.His remedy ____ stomachache is to eat the yellow of boiled eggs.
A.to
B.of
C.for
D.on
29.If you have nothing to do,why don’t you visit the ____ museum?
A.history
B.historic
C.historical
D.historian
30.Fuel scarcities and price increases ____ automobile
designers to scale down the largest models and to develope completely new lines of small cars and trucks.
A.persuaded
B.promoted
C.imposed
D.enlightened
31.It’s maintained that ____ in bulk is not good to the goods.
https://www.doczj.com/doc/bc6655173.html,/doc/77dc1de74028915f81 4dc209.htmlmunication
B.sending
C.transport
D.traffic
32.To call the music of another culture “primitive”is ____ one’s own standards on a group that does not recognize them.
A.putting
B.emphasizing
C.forcing
D.imposing
33.In case of damage,the museum had all the paintings ____.
A.insured
B.ensured
C.assured
D.guaranteed
34.It was felt that he lacked the ____ to pursue a difficult task to the very end.
A.persuasion
https://www.doczj.com/doc/bc6655173.html,/doc/77dc1de74028915f81 4dc209.htmlmitment
C.engagement
D.obligation
35.Astronauts are ____ all kinds of tests before they are actually sent up in a spacecraft.
A.inclined to
B.subjected to
C.prone to
D.bound to
36.I could see that my wife was ____ buying that fur coat ,weather I approved of it or not.
A.adequate for
B.intent on
C.short of
D.deficient in
37.Their claims to the damage have not been convincingly ____.
A.refuted
B.overwhelmed
C.depressed
D.intimidated
38.The lady in this strange tale very obviously suffers from a serious mental illness.Her plot against a completely innocent old man is a clear sign of ____.
A.impulse
B.insanity
C.inspiration
D.disposition
39.The boy pulled out the drawer and ____ the money into it when his mother was not looking.
A.glided
B.slid
C.tossed
D.threw
40.Jack’s uncle ____ drinking several years ago.
A.took over
B.took to
C.took after
D.took on
41.The real words ____ against the white wall.
A.stand for
B.stand by
C.stand out
D.stand back
42.In 30 years the country has been ____ into an advanced industrial power.
A.transmitted
B.transferred
C.transformed
D.transplanted
43.Your arguments are ____ to criticism.
A.vulnerable
B.sensitive
C.subject
D.susceptible
44.The boy jumped out on his sister and gave her a ____.
A.terror
B.panic
C.uneasiness
D.fright
45.British and American justice works in the ____ that an accused person is innocent until he’s proven guilty.
A.condition
B.terms
C.premise
D.situation
46.The goods of the cargo are ____ for all risks.
A.assured
B.insured
C.reassured
D.ensured
47.____are that she will be promoted.
A.Chances
B.Opportunities
C.Occasions
D.Odds
48.People now have easy ____ to international information with the use of Internet.
A.way
B.access
C.right
D.title
49.You cannot carry on the experiment ____ science.
A.In the name of
B.in terms of
C.by the name of
D.with the name of
50.The pictures in your eyes are not real,but ____.
A.imaginary
B.imaginative
C.imaginable
D.imagined
51.It’s so ____ of you to complain in the presence of the director.
A.senseless
B.sensible
C.sensitive
D.sensual
52.The man ____ that his house had been broken into.
A.alleged
B.advocated
C.claimed
D.announced
53.The museum are a ____ of the last government.
A.inheritance
B.succession
C.legacy
D.heritage
54.Her reflection ____ American culture appealed to the audience.
A.on
B.of
C.over
D.about
55.She spent her life in a(n) ____ small farming community.
A.isolated
B.tranquil
C.separate
D.lonely
56.The escaped prisoner is still ____.
A.free of charge
B.freely
C.in large
D.at large
答案：1~10 ABDAB DABDC 11~20 BBDCA BBCDA 21~30 AABBA BACAB 31~40CDABB BABBB
41~50CCADC BABAA 51~56ACCABD
小学五年级英语必须掌握的一些英语语法知识 一、时态 1、一般现在时： 概念：经常、反复发生的动作或行为及现在的某种状况。 时间状语：often （经常）,usually （通常）,always （总是）, sometimes （有时），every week （day, year, month ...）, on Sundays,… 基本结构：①be动词；②行为动词 否定形式：①am / is / are + not;②此时态的谓语动词若为行为 动词，则在其前加don't，如主语为第三人称单数，则用doesn't,同时还原行为动词。 一般疑问句：①把be动词放于句首；②用助动词do提问， 如主语为第三人称单数，则用does,同时，还原行为动词。 2、现在进行时： 概念：表示现阶段或说话时正在进行的动作及行为。 时间状语：now, look, listen, … 基本结构：am/is/are ＋doing 否定形式：am/is/are ＋not＋doing 一般疑问句：把be 动词放在句首
第三人称单数 一般现在时的肯定句中，主语为第三人称单数的动词变化主 要体现在词尾的变化上，其规律大体有三点： 1. 一般情况下，直接在动词词尾+s，例如：get —gets; take — takes 2. 以s, sh, ch, x, o结尾的动词，在词尾+ es,例如：teach —teaches; wash —washes; go —goes 3. 以辅音字母+ y结尾的动词，变y为i，再+ es, 如: study —studies; try —tries 除上述规律外,还应注意下面三点： 1. 动词have，遇到主语是第三人称单数时，要用has;动 词be 的第三人称单数形式是is。 2. 含有动词第三人称单数形式的句子变否定句时,要用 doesn't + 动词原形,如： He goes to school at six in the morning. （变否定句）—He doesn't go to school at six in the morning. 3. 对含有动词第三人称单数形式的句子提问时, 要用助动词does,如： She goes home at five every day. （对划线部分提问）—When /
Unit 1 Growing Up Part II Language Focus V ocabulary Ⅰ. 1. 1. respectable 2. agony 3. put…down 4. sequence 5. hold back 6. distribute 7. off and on 8. vivid 9. associate 10. finally 11. turn in 12. tackle 2. 1. has been assigned to the newspaper’s Paris office. 2. was so extraordinary that I didn’t know whether to believe him or not. 3. a clear image of how she would look in twenty years’time. 4. gave the command the soldiers opened fire. 5. buying bikes we’ll keep turning them out.
3. 1. reputation, rigid, to inspire 2. and tedious, What’s more, out of date ideas 3. compose, career, avoid showing, hardly hold back Ⅱ. 1. composed 2. severe 3. agony 4. extraordinary 5. recall 6. command 7. was violating 8. anticipate Ⅲ. 1. at 2. for 3. of 4. with 5. as 6. about 7. to 8. in, in 9. from
大学英语四级练习题单项选择题- 5 1.His?proposal?is?__A_____?to?all?of?us?and?you?do?not?need?to?tell?us?more?abo ut?it. A.apparent B.appearing C.approaching D.apart 2.This mountain range has many high __A_____ and fertile valleys. A.peaks B.hills C.phases D.pink 3.He gave us a good __C_____ of his experience. A.demonstration B.frequency C.descripton D.instruction 4.You have your choice of three __A_____ of ice cream. A.varieties B.tops C.respects D.decks 5.This sick man was __D_____ in a blanket. A. input B.issued C.ensured D.wrapped 6.This is the military ___B_____. Nobody is allowed to get in without permission. A.bond B.zone C.butter D.zoo 7.Rock music usually ___B____ the young people in most countries. A.applies to B.appeals to C.amazes D.actress 8.Would he have seen you if you hadn’t __B_____ to him?
【一】全新版大学英语综合教程1课后题 Unit 1 Growing Up Part II Language Focus Vocabulary Ⅰ.1. …down back and on in 2. been assigned to the newspaper’s Paris office. so extraordinary that I didn’t know whether to believe him or not. clear image of how she would look in twenty years’ time. the command the soldiers opened fire. bikes we’ll keep turning them out. 3. , rigid, to inspire tedious, What’s more, out of date ideas , career, avoid showing, hardly hold back Ⅱ. violating Ⅲ. , in upon Comprehensive Exercises Ⅰ. Cloze 1. back
and on out/in 2. Ⅱ. Translation 1. 1.As it was a formal dinner party, I wore formal dress, as Mother told me to. 2.His girlfriend advised him to get out of/get rid of his bad habit of smoking before it took hold. 3.Anticipating that the demand for electricity will be high during the next few months, they have decided to increase its production. 4.It is said that Bill has been fired for continually violating the company’s safety rules. /Bill is said to have been fired for continually violating the company’s safety rules. 5.It is reported that the government has taken proper measures to avoid the possibility of a severe water shortage. /The local government is reported to have taken proper measures to avoid the possibility of a severe water shortage. 2. Susan lost her legs because of / in a car accident. For a time, she didn’t know how to face up to the fact that she would never (be able to) walk again. One day, while scanning (through) some magazines, a true story caught her eye /she was attracted by a true story. It gave a vivid description of how a disabled girl became a writer. Greatly inspired, Susan began to feel that she, too, would finally be bale to lead a useful life. Unit 2 Friendship I. Vocabulary 1. Fill in the gaps with words or phrases given in the box. 1) absolutely 2) available
1) leave的用法 1.“leave+地点”表示“离开某地”。例如： When did you leave Shanghai? 你什么时候离开上海的？ 2.“leave for+地点”表示“动身去某地”。例如： Next Friday, Alice is leaving for London. 下周五，爱丽斯要去伦敦了。 3.“leave+地点+for+地点”表示“离开某地去某地”。例如：Why are you leaving Shanghai for Beijing? 你为什么要离开上海去北京？ 2) 情态动词should“应该”学会使用
should作为情态动词用，常常表示意外、惊奇、不能理解等，有“竟会”的意思，例如： How should I know? 我怎么知道？ Why should you be so late today? 你今天为什么来得这么晚？ should有时表示应当做或发生的事，例如： We should help each other.我们应当互相帮助。 我们在使用时要注意以下几点： 1. 用于表示“应该”或“不应该”的概念。此时常指长辈教导或责备晚辈。例如： You should be here with clean hands. 你应该把手洗干净了再来。 2. 用于提出意见劝导别人。例如： You should go to the doctor if you feel ill. 如果你感觉不舒服，你最好去看医生。
3. 用于表示可能性。should的这一用法是考试中常常出现的考点之一。例如： We should arrive by supper time. 我们在晚饭前就能到了。 She should be here any moment. 她随时都可能来。 3) What...? 与Which...? 1. what 与which 都是疑问代词，都可以指人或事物，但是what仅用来询问职业。如： What is your father? 你父亲是干什么的？ 该句相当于： What does your father do? What is your father's job? Which 指代的是特定范围内的某一个人。如：
1.V alentine’s Day probably....ever since. (BCADA) 1.to trace back 2.they would’t concentrate 3.Refused to obey 4.496 AD 5.to show our 2.Having raised eight children....can provide. (BABCD) 1. How to show 2.may by a famous 3.he had a 4.material wealth does 5.to give them 3.In the 1990s...of their class (CABCD) 1.The devaluation 2.prove the trend 3.reducing in 4.people can’t 5.The Devaluation 4.We received your letter....such trip (BABCC) 1.To express the difficulties 2.they advertise 3.we can’t afford 4.may not 5.the sales agent 5.In the future....says Leon (BABDA) 1.people with the 2.they may lose money 3.Scientists want 4.To illustrate 5.What’s Best 6.Criticism has been....own games (BDDCA) 1.Parents of 2.Because they have seen 3.To promise 4.Fewer referees would 5.Abusing. 7.Only about 15....of obesity (ADCDA) 1.people do not 2.He is one 3.Stretching at work 4.Extreme fatness 5.Ten minutes to 8.Y ou may recall....J.J.Budd (BBCAD) 1.a company 2.he wants new 3.Raj Rammanvihal works 4.familiar with 5.a formal letter 9.Fifteen-year-old...learn now (DAABC) 1.kept so that 2.they fail to 3.A list of the result 4.academic achievement 5. a teacher in 10.Most Americans will....and responsible? (ADDCD) 1.Positive 2.admission 3.helps students both 4.To ensure that 5.School that offer 11.A study issued...shared responsibility (BCDBA) https://www.doczj.com/doc/bc6655173.html,mitment to 2.enter school 3.60--80% 4.making young people 5.Social environment 12.When i was four....be impossible (CDCCB) 1.kept him away 2.attended classes 3.be different 4.to give a 5.knowledge from outside 13Bin Ben is one of....a guide (CBACD) 1.a light 2.Coins a 3.the old 4.1924 5.Undamaged 14.John Colter was....mud holes (DADBC) 1.Y ellowstone Park 2.Moran and 3.for more 4.was once not 5.The History 15.One day Walt ....the future” (CCBCB) 1.Building a 2.improved the 3.Its spot 4.Fantasyland 5.Disneyland 16.At sixteen Ron....the book (DACBC) 1.Ron was 2.he wanted 3.The job 4.four 5.he knew 17.When faced with.....international scale (BBCBB) 1.A good death means 2.Never say 3.Tube feeding 4.to adapt 5.Death is 18.On Mother’s Day....of dying (AACAD) 1.she wanted 2.to do something 3.Mom had 4.not busy 5.as the tablecloth 19.While caring for.... Their lives. (CDBBD) 1.Women provide 2.volunteer assistance 3.tain family 4.people who 5.to talk to 20.On the morning ....our grief. (CBADB) 1.someone bombed 2.angels in 3.There was 4.He was elbowed 5. We should 21.With so many scientists...the study (BCADD) 1.The possible 2.the former 3.focusing on 4.are the 5.Freed and Lin’s stress 22.Engineering design aims....so important. (BABCD) 1.Some factors 2.pulled down 3.Building ..reconstructed 4.effect of 5.rivers and
大学英语四级练习题单项选择题-5 1.His proposal is __A_____ to all of us and you do not need to tell us mor e about it. A.apparent B.appearing C.approaching D.apart 2.This mountain range has many high __A_____ and fertile valleys. A.peaks B.hills C.phases D.pink 3.He gave us a good __C_____ of his experience. A.demonstration B.frequency C.descripton D.instruction 4.You have your choice of three __A_____ of ice cream. A.varieties B.tops C.respects D.decks 5.This sick man was __D_____ in a blanket. A. input B.issued C.ensured D.wrapped 6.This is the military ___B_____. Nobody is allowed to get in without per mission. A.bond B.zone C.butter D.zoo 7.Rock music usually ___B____ the young people in most countries. A.applies to B.appeals to C.amazes D.actress
中考英语语法填空知识点梳理及经典练习(超详细) 一、初三中考语法填空（含答案详细解析） 1．阅读下面短文，在空白处填入一个适当的词，或填入括号中所给单词的正确形式。Today almost everyone knows computers and the Internet. If I ask you" What is the most important in your life? ", maybe you will say" Computers and the Internet". The________（one）computer was made in 1946. It was very big but it worked________（slow）. Today computers are getting smaller and smaller. But________work faster and faster. What can computers do? A writer has said, "People can't live________computers today." The Internet came a little later than computers. It is about twenty-three years later than computers. But now it can________（find） almost everywhere. We can use it to read books, write letters, do________（shop）, play games or make friends. Many students like the Internet very much. They often surf the Internet as soon as they are free. They make friends on the Internet and maybe they have never seen these friends. They don't know their real________（name）, ages, and even sex（性别）. They are so________（interest） in making the "unreal friends" that they can't put their hearts into study. Many of them can't catch up with others on many subjects________of that. We can use computers and the Internet to learn more about the world. But at________same time, we should remember that not all the things can be done by computers and the Internet.【答案】first；slowly；they；without；be found；shopping；names；interested；because；the 【解析】【分析】文章大意：文章介绍了电脑的发明时间，以及电脑的用途。还有电脑对我们生活的影响。 （1）句意：第一台电脑是在1946年制造的。根据定冠词the，可知应使用序数词first，故答案是first。 （2）句意：它很大，但是工作得很慢。slow修饰动词worked，应使用副词slowly，故答案是slowly。 （3）句意：但是他们工作的越来越快了。空缺处指代前文的computers，因此使用they，故答案是they。 （4）句意：现在没有了电脑人们不能生活。因为电脑在我们日常生活中越来越重要。所以没有电脑就不能生活，没有without，故答案是without。 （5）句意：但是现在到处都可以发它。主语it 和find是被动关系，应使用被动语态，含有情态动词的被动语态是：情态动词+be+过去分词，故答案是be found。 （6）句意：我们可以用电脑读书、写信和购物，购物do shopping，固定搭配，故答案是shopping。 （7）句意：他们不知道他们真正的名字。name名字，可数名词，根据their可知应使用复数形式，故答案是names。 （8）句意：他们对于结交不真实的朋友那么感兴趣，以致于不能把心思用在学习上。be interested in，对……感兴趣，故答案是interested。 （9）句意：因为这个原因，他们中的许多人在许多课程山上跟不上其他学生。because of
A love marriage, however, does not necessarily result in much sharing of interests and responsibilities. A magnificent monument has been erected in Tian An Men Square in honor of the people ' s heroes. A racing car is an extraordinary feat of engineering. Accumulated en ergy un der the earth must be released in one form or ano ther, for example, an earthquake. Although he had looked through all the reference material on the subject, he still found it hard to un dersta nd this point and her explanation only added to his confusion. Ano ther team of scie ntists has come up with con flict ing evide nee. Believing the earth to be flat, many feared that Columbus could fall off the edge of the earth. But the other factor that we shouldn ' t forget is thealriek off U.S. immigration policy. Compared with wester ners, the Orie ntals use less butter. They prefer the very healthful pea nut oil. Con trary to popular belief, moderate exercise actually decreases your appetite. Corin thia n colu mn is the most highly decorated of the five classical types. Do not toss the salad until you are ready to serve. Dr. Jones emphasizes exercise in addition to a change in diet. During the process, great care has to be taken to protect the delicate silk from damage. Eati ng too much fat can con tribute to heart disease and cause high blood pressure. Every one in the party can see Ed and Roger are competi ng for Alice ' s atte nti on. Figures showed customer complaints had soared to record levels and profits were falling. Having decided to rent a flat, we set about con tact ing all the accommodati on age ncies in the city. He admits that more work needs to be done to validate the strategy, and ensure that it ' s safe. He is a mathematical genius . He is optimistic about his chances of winning a gold medal in the Olympics next year. He might let someth ing slip in a mome nt of weak ness. He told the magaz ine in an exclusive in terview: "enas miepn&bim drink. ” He was jealous of no body ' s achieveme nts. he wrote an article criticizing the Greek poet and won prestige and a scholarship. His retail bus in ess in the city expa nded rapidly betwee n the wars. I caught a glimpse of the taxi before it disappeared around the corner of the street. I chose to work abroad to improve my career prospect . I felt I couldn ' t cope with the situation and wacfeeisperate need of some reassuranee. I hate people who reveal the end of a film th at you haven ' t seen before. I have kept that portrait where I can see it every day, as it always reminds me of my university days in London. I think it ' s tiimeeIsted in a new computer. I want to buy a new tie to go with this brow n suit. I will defer to Mr. Walters on this point I wish I could put the clock back and relive my schooldays; I regret not having tried harder and passed mere exams. If you hear such a rumor, in vestigate it thoroughly. If you say anything to Jane, she ' csilikeey tovith a bitter remark. In no country other than Britain, it has been said, can one experience four seasons in the course of a single day. In the wife ' s eyes,commitment to their marriage life is far from perfect. Intensive efforts are being made to resolve the dispute. It did not take the police long time to bring out the truth. it is our consistent policy that we will achieve unity through peaceful means It is predicted that heavy rains are threate ning to flood the area in a few days. It soon developed that what she loved was not my person but my wealth.
Unit One : Test Yourself-----Multiple Choice Directions: For each sentence there are four choices marked A), B), C) and D). Choose the ONE answer that best completes the sentence. C1. The government has devoted a larger slice of its financial ____ to agriculture than most other countries. A) conditions B) potential C) budget D) economy B2. The long drought caused a(n) ____ shortage of water in this region. A) urgent B) acute C) dense D) rigid B3. Many in the credit industry expect that credit cards will eventually ___D_ paper money for almost every purchase. A) trade B) replace C) exchange D) reduce D4. The history of life on earth has been a history of ____ between living things and their surroundings. A) introduction B) interview C) interference D) interaction D5. Don’t have him for a friend. He’s ____ a criminal. A) anything but B) but for C) rather than D) nothing but B6. I’ve seen Donna in lots of movies, but I’ve never seen her __A__. A) in person B) in reality
3.Many products for sale seem to scream at us, "Buy me! Buy me!" Advertising is a big busin ess in our world with many products competing for our attention. Think of the last time you boug ht clothes. You probably noticed the variety of colors, patterns, fabrics and brands you could choo se from. Which kind of soft drink would you like to have today or what kind of computer do you want? Advertisers are skilled in the art of making their products look the best to appeal to our se nses. But products aren't always what they seem. Sometimes advertising is deceptive and as cons umers ,we must be careful about what we choose to buy. It is important to learn to compare prod ucts and identify our purpose in purchasing the things we need. But the good thing about advertising is that it helps people to make decisions and refine thei r choices. In the United States, the Ad Council creates timely public service messages to the nation. Th eir purpose is to raise awareness of public problems that citizens can respond to. Inspiring ads ca use individuals to take action and even save lives. Pollution in America, for example has been red uced over the years because of the creative Public Service advertisements that the council provid es" Please, please don't be a litter bug, 'cause every 'litter bit' hurts." Many families have taught t heir children to place litter in the trash can in response to this catchy phrase, which has affected g enerations as each succeeding generation has taught their children not to litter. 4.Nature imposes difficult conditions upon the earth from time to time . The tornado and fo rest fire destroy natural resources ,homes and other structures ,and very often harm or kill peopl e . Technological tragedies happen with little or no warning as we see trains crash and airplanes f all from the sky shortly after take-off. As tragic as calamities are , they seem to bring out the best in human nature . people trained in em ergency care arrive at the scene and begin assisting the inj ured .Others come with equipment to remove debris. Men , women ,and young people willingly c ome to the scene of an accident , hoping to be of help in some way . These selfless acts of kindne ss make our world a better place . compassion eases the wounds of calamities. American Airlines flight number 587 crashed less than three minutes after taking off from JF K Airport in New York in November,2001. Witnesses s aw an engine fire develop on the plane’s nu mber one engine located under the left wing of the aircraft .seconds later ,the airliner crashed int o eight homes ,completely destroying four of them .All 260 people aboard the airplane were kille d along with six people at the crash site ,leaving many people to mourn the loss of their loved on es .the residents (people who live in the area of the crash ) rallied together to comfort those griev ing, while others removed bodies from the wreckage and did the necessary clean-up. 工程实施困难的条件下在地上的时候。龙卷风和森林火灾破坏自然资源,房屋和其他建筑物,和经常伤害或杀死人。技术的悲剧发生在很少或没有预警,因为我们看到火车事故,飞机起飞后不久就从天空坠落。一样悲惨的灾难,他们似乎显示出人性中最好的。在急诊受训的人到达现场并开始帮助受伤的人则跟设备清除残骸。男人,女人,和年轻人自愿来到事故现场,希望能有帮助。这些无私的善举让我们的世界变得更美好。同情减轻灾害的伤口。 美国航空公司587号航班坠毁不到三分钟后从纽约肯尼迪机场起飞,11月2001。目击者看到一个引擎火灾发展在飞机上的1号引擎位于下飞机的左翼,接着后,客机坠毁八家,完全摧毁了四个260名乘客的飞机遇难连同6人在事故现场,造成许多人悼念失去的亲人,居民(住在崩溃的面积)聚集在一起,安慰那些悲伤,而另一些人则从残骸,并把尸体移走必要的清理。 5.Success can be reached in different ways by people in different careers. Bill Gates began at age to program computers,His vision for personal computing has been central to the success of M icrosoft Corporation, the company he founded with his childhood friend in 1975 . The former CEO of General Electric, Jack Welch, is a business legend. A famous quote by Mr. Welch is,” Chang before you have to. ”He believes in leading by example and encourages his empl oyees to do their best every day. Michael Jordan s aid,”I accept failure, but I can’t accept not trying.” He is one of the best athl etes to ever play team sports. His great smile, athletic achievements, and pleasant personality ha ve made him one of the most famous athletes in the world. Michael Jordan spent a lot of time pla ying basketball as a child but in senior middle school he was taken off the team . Instead of giving up , he worked through adversity and became the greatest basketball player yet .