人教版高二英语选修八第二单元学案含答案

单元检测·提升二(时间：120分钟总分：150分)Ⅰ.听力(共两节，满分30分)第一节(共5小题；每小题1.5分，满分7.5分)听下面5段对话。

每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。

听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。

每段对话仅读一遍。

M：Hi，I'm home.W：Hi.Did you remember to buy the tickets?M：Well，I remembered，but they were sold out.W：Oh no.I was really looking forward to it.It's the last night that the play is on.1Why is the woman so disappointed?A．Because she won't have a chance to see the play.B．Because the man wouldn't go to the play with her.C．Because there are no good seats left.M：Have you got something bigger?W：That's the last one we've got，I'm afraid.M：I'll leave it，thanks.2Where does the conversation most probably take place?A．At a bus stop.B．In a cinema.C．In a shop.W：Why so early?M：Early？It's 3 o'clock now.School starts at 8：45 in the morning and ends at 3 in the afternoon.W：In my country，we go to school from 8 a．m.until 5 p．m.M：Gosh!3What can we learn about the two speakers?A．They are neighbours.B．They are both students.C．They are from the same school.M：Excuse me，can you tell me when the next bus leaves for the airport?W：It leaves in three minutes.If you run，you might catch it.M：Thank you.I will try.4What is the man going to do?A．Run to the airport.B．Wait for another bus.C．Hurry to get the next bus.W：What've you got behind your back？No，don't tell me—chocolates?M：No，these!W：Oh，they are lovely，and my favourite colour roses too！Thank you!5What has the man got behind his back?A．Some chocolates.B．His gift for the woman.C．Lovely red roses.第二节(共15小题；每小题1.5分，满分22.5分)听下面5段对话或独白。

选修八 Unit 2《Cloning》单元测试2笔试部分：I. 单项选择1. — Believe me, all your efforts will ________ some day.— Thanks for your encouragement.A. pay backB. pay downC. pay offD. pay up2. Her abandoned teaching ________ a career as a musician.A. instead ofB. in favor ofC. in view ofD. in the event of3. Thanks, but you needn't have ______. I bought a new one this morning.A. stoodB. workedC. botheredD. operated4. It would have made a lot of ____ if you told me this two days earlier.A. effectB. resultC. outcomeD. difference5. All the people around the world have the same simple dream ______ they will always live in peace and comfort..A. thatB. whichC. whereD. when6. She is too fat, but she can't ________ sweets.A. removeB. resistC. rejectD. object7. The professor spoke very clearly to make his speech easy.A. to understandB. understandC. understandingD. understood.8. He's obviously quite embarrassed about it because he _________ me to tell anyone.A. promisedB. encouragedC. gotD. forbade9.He got into an _____ with Jeff in the pub last night and they still didn't reach any conclusion.A. acquaintanceB. argumentC. admirationD. agreement10. Since she ____ from the company, she begun to work as a volunteer for4 a house for the aged.A. differedB. roseC. retiredD. formed11. It isn't _______ to expect a surgeon to be able to make correct judgment in every case.A. reasonableB. naturalC. normalD. that I got12. Opening the book she found in it a whit, plain envelope with her name ______ on it.A. to printB. printedC. printingD. print13. “ Well, I'll tell you a secret.” Said the boy, with his mouth almost _____ my ear.A. touchedB. touchingC. touchD. to touch14. We thought of asking him for help then, but we were _____ to get in touch with him at that time.A. happyB. anxiousC. easyD. unable15.He's ________ to fail the exam if he doesn't do any revision.A. nearB. fitC. boundD. easyII 完形填空Music comes in many forms；most countries have a style of their own.At the turn of the century when jazz was born，America had no prominent(卓越的)__1__of its own.No one knows exactly when jazz was__2__，or by whom.But it began to be___3__in the early 1900s.Jazz is America's contribution to__4__music.In contrast to classical music，which __5__formal European traditions，jazz is spontaneous(自发的)and free form.It bubbles with energy，__6__the moods，interests，and emotions of the people.In the 1920s jazz sounded like America，and __7__it does today.The __8__of this music are as interesting as the music __9__.American Negroes，or blacks，as they are called today，were the jazz __10__.They were brought to Southern States as slaves.They were sold to plantation owners and forced to work long __11__.When a Negro died his friend and relatives formed a procession to carry the body to the cemetery.In New Orleans，a band often accompanied the __12__.On the way to the cemetery the band played slow，solemn music suited to the occasion.__13__on the way home the mood changed.Spirits lifted.Death had removed one of their relations，but the living were glad to be alive.The band played __14__music，improvising(即兴表演)on both the harmony and the melody of the tunes __15__at the funeral.This music made everyone want to dance.It was an early form of jazz.1．A.music B．songC．melody D．style2．A.discovered B．actedC．invented D．designed3．A.noticed B．foundC．listened D．heard4．A.classical B．sacredC．popular D．light5．A.forms B．followsC．approaches D．introduces6．A.expressing B．explainingC．exposing D．illustrating7．A.as B．soC．either D．neither8．A.origins B．originalsC．discoveries D．resources9．A.concerned B．itselfC．available D．oneself10．A.players B．followersC．fans D．pioneers11．A.months B．weeksC．hours D．times12．A.demonstration B．processionC．body D．march13．A.Even B．ThereforeC．Furthermore D．But14．A.sad B．solemnC．happy D．funeral15．A.whistled B．sungC．presented D．showedIII 阅读理解ALike many of my generation，I have a weakness for hero worship.At some point，however，we all begin to question our heroes and our need for them.This leads us to ask：What is a hero?Despite immense differences in cultures，heroes around the world generally share a number of characteristics that instruct and inspire people.A hero does something worth talking about.A hero has a story of adventure to tell and a community who will listen.But a hero goes beyond mere fame.Heroes serve powers or principles larger than themselves.Like high­voltage(电压)transformers，heroes take the energy of higher powers and step it down so that it can be used by ordinary people.The hero lives a life worthy of imitation.Those who imitate a genuine hero experience life with new depth，enthusiasm，and meaning.A sure test for would­be heroes is what or whom do they serve? What are they willing to live and die for? If the answer or evidence suggests they serve only their own fame，they may be famous persons but not heroes.Madonna and Michael Jackson are famous，but who would claim that their fans find life more abundant?Heroes are catalysts (催化剂)for change.They have a vision from the mountain top.They have the skill and the charm to move the masses.They create new possibilities.Without Gandhi，India might still be part of the British Empire.Without Rosa Parks and Martin Luther King，Jr.，we might still have segregated(隔离的)buses，restaurants，and parks.It may be possible for large­scale change to occur without leaders with magnetic personalities，but the pace of change would be slow，the vision uncertain，and the committee meetings endless.一．根据短文，写一篇30词左右的摘要____________________________________________________________________________________________________________________________________________________________________________________________________________________________二．根据所读短文，选择最佳选项1．Although heroes may come from different cultures，they ________. A．generally possess certain inspiring characteristicsB．probably share some weaknesses of ordinary peopleC．are often influenced by previous generationsD．all unknowingly attract a large number of fans2．According to the passage，heroes are compared to high­voltage transformers inthat ________.A．they have a vision from the mountaintopB．they have warm feelings and emotionsC．they can serve as concrete(具体的)examples of noble principlesD．they can make people feel stronger and more confident3．Madonna and Michael Jackson are not considered heroes because ___________________.A．they are popular only among certain groups of peopleB．their performances do not improve their fans morallyC．their primary concern is their own financial interestsD．they are not clear about the principles they should follow4．Gandhi and Martin Luther King are typical examples of outstanding leaders who ___________.A．are good at demonstrating their charming charactersB．can move the masses with the skill and the charmC．are capable of meeting all challenges and hardshipsD．can provide an answer to the problems of their people5．The author concludes that historical changes would ___________________________. A．be delayed without leaders with inspiring personal qualitiesB．not happen without heroes making the necessary sacrificesC．take place if there were heroes to lead the peopleD．produce leaders with attractive personalitiesBI work as an aid on a school bus. There is a guy Tyrell who is almost completely blind. Tyrell was all smiling for about a week. He's normally a quite happy kid, but I could tell this was different from the normally silly smile I see. Wednesday morning my curiosity finally got me to ask him why.He told me that he was going to ride his new 3-wheeled bike when he got home. He couldn't control his happiness. When he got off, he gave me a smile. A smile will forever be in my heart.The next morning, I noticed that his eyes were quite puffy (浮肿的). So were his mother's. I asked them why. She explained that was due to many hours of tears the night before. She said that Tyrell got to ride the bike once before he had to come in for dinner and was promised he could ride it again afterward. He left it in the back yard where they thought it would be safe.However, after dinner, the bike was nowhere to be found. They immediately broke into tears because they knew the thing that he treasured so much was stolen. She called her close friend to find some comfort.The friend called her up later and said that she forgot to tell Tyrell's mom that she had something for them and asked if it would be OK to bring it over. She, of course, was still crying from the thought that another bike would be impossible to afford and said yes. The friend brought over a huge box, in which there was a brand new bike for Tyrell.When they noticed what was in the box, they thanked their angel and cried even harder, not of sadness but of joy, and thankfulness.6. Why did the writer stress the guy's smile repeatedly in the first two paragraphs?A. His smile gave the writer a deep impression.B. The writer liked his happy smile very much.C. It set off how serious the loss of bike caused.D. The smile showed the happy ending of the story.7. Tyrell's mom cried so sadly at the lost bike because ____.A. her son wouldn't ride the bike any moreB. her family couldn't afford another bikeC. she felt very sad for the lost bikeD. she had just bought the bike for her son8. We can conclude from this story that ____.A. there are good people out thereB. offering someone helps is better than stealing from himC. the loss of the bike puts the family into a sad situationD. one can obtain happiness from helping othersCGoing to college has been such a new experience for me. Everything is different from when I was in high school. One thing I've noticed is that I haven't been focusing on my coursework like I planned.I thought I would spend most of my college life studying. But since I've been in college, about 60 percent of my time has been devoted to social life, while only 40 percent of my time has been devoted to my studies. I never knew I would make so many friends in such a short time.It's been so overwhelming (无法抵抗的)! I'm not saying that making friends is bad, but I'm starting to realize how much socializing has cut down on the time I should have spent on studying.Needless to say, that has to be changed.I've realized that I really don't want to spend an extra year or two here just because I slacked off as a freshman. So the first thing I'm going to do is to cut down on the amount of time I spend socializing. I will also have to say goodbye to a good part of the activities I like to attend.It's really difficult to cut these things out of my life, but I have to choose: I can have a full-time social life and fail college, or I can learn to balance my time between friends and studying and keep good grades. I think I'll stick to that second option!I may be a little strict on myself, but I'm here to get an education, not to learn how to socialize more! I want to have fun at college, but at the same time, I want to get a good education and have a bright future!9. What did the writer realize about his first year at college?A. He doesn't work as hard as in high school.B. Teachers don't care about him any more.C. He could make quite a lot of friends.D. He could spend much time on study.10. The writer makes a decision that he will ____.A. devote himself to his study rather than making friendsB. say good-bye to all his college activitiesC. cut down all his social life to have a good educationD. try not only to study well but also to have fun at college11. The underlined phrase “slack off” in the fifth paragraph is closest in meaning to “____”.A. do one's bestB. spare no effortC. have a good timeD. make less effort12. We can infer from the passage that the writer will ____ at college.A. spend more time on studyB. make a lot of friendsC. take more activitiesD. cut down his studying timeDAfter a couple has had their first child, to their disappointment they became infertile and couldn't have more children. Cloning would enable such a couple to have a second child, perhaps a younger twin to the child they already have. Many couples have difficulty having children, and sometimes it is impossible for couples to have children because they are infertile. Cloning would allow these couples to have children.It is hard to tell someone that they cannot use cloning to have children when no other possible ways to have children are available. This is one reason why it is difficult to decide whether cloning is moral or not. The following are some of the reasons why cloning should be allowed.Through cloning, research can progress. We possibly can learn more about cell. We may develop technology to allow easier genetic testing and fixing problems such as spinal cord injuries, cancer, and many more.Cloning organs for organ transplants (移植) is one of the major practical reasons that cloning should be allowed. There is always a high demand for organs. Some argue for the cloning of humans to create extra body parts. Others talk of just wanting to clone an organ to replace a faulty organ.Rejuvenation (恢复青春) is also a key argument for advocates (提倡) of cloning. Some scientists believe that injecting cloned healthy heart cells into damaged heart tissue will lead to healing of the heart. By combining the technology for cloning and the technology for growing human stem cells, conditions like Alzheimer's, Parkinson's, and some other ageing disease may be curable. The possibilities are endless and may be left undiscovered if human cloning is forbidden.13. The underlined word “infertile” in Para. 1 means “____”.A. unable to have childrenB. too poor to grow cropsC. poor in pregnant knowledgeD. unable to afford to bring up children14. How many reasons does the writer give in this passage about why cloning shouldbe allowed?A. 2.B. 3.C. 4.D. 5.15. Which of the following statements is NOT true?A. Cloning babies for infertile couples is moral.B. Through cloning, research work in cells can make great progress.C. Cloning cells can make some diseases concerning ageing curable.D. Cloning technology may help improve medical technology.16. From the passage, we can know the writer's attitude toward human cloning is ____.A. negativeB. supportiveC. uninterestedD. opposingEBARCELONA (Reuters) —“Galactic Suite”, the first hotel planned in space, expects to open for business in 2012 and would allow guests to travel around the world in 80 minutes.Its architects say the space hotel will be the most expensive in the galaxy, costing $4 million for a three-day stay.During that time guests would see the sun rise 15 times a day and use Velcro suits to crawl (爬) around their pod (分离舱) rooms by sticking themselves to the walls like Spiderman.Company director Xavier Claramunt says the three-bedroom hotel's joined up pod structure, which makes it look like a model of molecules, was based on the fact that each pod room had to fit inside a rocket to be taken into space.“It's the bathrooms in zero gravity that are the biggest challenge,” says Claramunt. “How to provide enough space for more private activities of the guests is not easy.”But they may have solved the issue of how to take a shower in weightlessness — the guests will enter a spa room in which bubbles of water will float around.When guests are not admiring the view from the windows of their pod rooms'， they will take part in scientific experiments on space travel.“There is fear associated with going into space,” said Claramunt. “That's why the shuttle rocket will remain fixed to the space hotel for the duration of the guests' stay, so they know they can get home again.”“But,” says Claramunt, “I'm hopeful that the impact of seeing the earth from a distance will stimulate (激发) the guests' urge to value and protect our planet.”17. Which of the following might be the best title for this passage?A. “Galactic Suite”: the first hotel planned in spaceB. Fly me to the moon: space hotel sees 2012 openingC. Fly to the moon: a greatest dream for humansD. Building a space hotel: a dream or a reality?18. Which of the following is NOT what guests can do in “Galactic Suite”?A. Watching the sunrise.B. Taking a weightless shower.C. Doing scientific experiments.D. Walking in space.19. Suppose we will travel to space, the following will be the problems we must solve EXCEPT ____.A. weightlessnessB. fearC. pollutionD. money20. The writer's writing this passage is to ____.A. prove space travel is possibleB. tell us a bright dream of going to spaceC. explain some problems existing in space travelD. report a space hotel to be completed by 2012IV 单词拼写1. The role of the news m_________ informing public opinion is of great importance.2. The small town looks e__________ as it did when it was built 200 years ago.3. I'm sorry to d_________ you so late, but I was wondering if I could use your phone.4. For a teacher to hit a child is not just m__________ wrong but also illegal.5. These profits are based on the a__________ that prices will continue to rise.6. The treatment won't cure her — it m__________ stops the pain.7. The law f__________ the sale of cigarettes to people under the age of 16.8. We have worked out a new set of p__________ for using this machine.9. No one o__________ when the manager said it was time to go home.10. Every servant will r__________ from his position at the age of 60.V 书面表达阅读下面的文字，用英语写一篇120-150词的短文。

人教新课标高二英语选修八Unit 2 基础训练I. 用括号内单词的正确形式填空。

1. ________ (able) to sleep, I got up and made myself a drink.2. ________ (short) after you left, a man came into the office looking for you.3. Each period had its own particular style of architectural ________ (decorate).4. I just need to make a few ________ (correct), and then we can send it to the printer.5. The company suggested that he should take early ________ (retire).6. We are working on the ________ (assume) that the conference will take place as planned.7. Be ________ (reason) —you can’t expect her to do all the work on her own!II. 用适当的介词填空。

1. The word “cancer” still strikes terror ________ many hearts.2. People differ ________ one another in their ability to handle stress.3. I object ________ the plan on the grounds that it is too expensive.4. Their success owes more ________ good luck than to careful management.5. Jim’s daughters visited him from time ________ time when he was ill.6. I bought a couple of antique chairs yesterday —they’re ________ good condition.7. A gifted teacher can really bring literature ________ life for his or her students.III. 选用方框内合适的短语并用其正确形式填空（每个短语限用一次）。

第一局部选修8Unit 2Ⅰ.完形填空(2021河南洛阳二质检)In a food store I heard a woman say her foot was hurting and that she was going to call a cab.When walking back home I saw her outside the store, probably__1__for a cab.I asked her where she was going.She told me a place which was actually on the __2__ to the craft store I'd be__3__ to.So I asked her to __4__ the cab and I'd give her a ride.To my __5__，she said okay without __6__.I wonder if I'd have been so __7__ if a stranger made me the same offer!Where she was going was __8__ on the way to where I was going.It was such a __9__ interaction.But there was more!When I had __10__ what I went for and was waiting at the checkout, the woman behind me said she had a coupon(优惠券)for 50% off any __11__ in the store.She gave it to me because she had a(n) __12__ one! I thanked and gave her a __13__.They say “what goes around comes around〞，but sometimes it is hard to see how that __14__ as there is often a “manifestation(显现)delay〞．Each action __15__ a ripple (涟漪)that eventually __16__ back to us, but sometimes it is much __17__ so we forget their connection.Today the causes and effects have appeared in a linkable manner where in __18__I'm also opening myself to receiving gifts, now or in the future.I can learn so much from others as to how __19__ they are to receive in a way I might not have been if __20__ the same gift.()1.A.caring B．waitingC．applying D．ordering()2.A.left B．rightC．carriage D．way()3.A.driving B．leadingC．walking D．pulling()4.A.take B．postponeC．cancel D．charge()5.A.sadness B．amazementC．respect D．disappointment()6.A.hesitation B．aimC．doubt D．delay()7.A.enthusiastic B．invitingC．trusting D．puzzled()8.A.very B．universallyC．surely D．right()9.A.shameful B．beautiful C．careful D．frightful ()10.A.picked up B．put up C．gave up D．went up ()11.A.load B．demand C．limit D．item()12.A.familiar B．devoted C．extra D．important ()13.A.post B．smile C．note D．paper()14.A.shares B．compromises C．recognizes D．works()15.A.creates B．freezes C．ships D．affects()16.A.puts B．holds C．comes D．keeps()17.A.easier B．funnier C．later D．swifter()18.A.giving B．appreciating C．persuading D．demanding()19.A.close B．openC．confident D．anxious()20.A.brought B．learnedC．booked D．offered【主旨大意】这是夹叙夹议文章。

Section ⅢLearning about Language & Using Language重点单词写作词汇1.owe v t. 欠(账、钱、人情等)；归功于……2.shortly ad v. 立刻；不久3.retire v i. 退休；离开4.bother v t. 打扰v i. 操心n. 烦扰5.regulation n. 规则；规章；法规6.strike v t.& v i. 打；撞击；罢工n. 罢工7.drawback n. 缺点；不利条件8.unable adj. 不能的；不会的9.vain adj. 虚荣的；自负的；徒劳的拓展词汇10.assumption n．假定；设想→assume v．假定；设想11.resist v t.抵抗；对抗→resistance n．抵抗；对抗12.merely ad v.仅；只；不过→mere adj.仅仅的；纯粹的13.decoration n．装饰→decorate v t.装饰14.popularity n．受人喜爱；流行→popular adj.流行的；通俗的；受欢迎的15.reasonable adj.合情理的；讲道理的；公道的→reason n．理由；道理阅读词汇pulsory adj. 必须做的；义务的；强迫的；强制的17.opera n. 歌剧；歌剧团；歌剧院18.loaf n. 一条(面包)19.initial adj. 最初的；开始的20.restore v t. 恢复；使恢复原状；重建21.feather n. 羽毛22.adore v t. 崇拜；爱慕；喜爱23.hatch v t.& v i. 孵出；孵卵；孵化24.claw n. 爪；脚爪25.dye v t. 给……染色；染n. 染色剂重点短语1.(be) bound to (do)...一定或注定(做)……2.strike...into one’s heart 使……刻骨铭心3.from time to time 不时；偶尔4.bring back to life 使复生；使复活5.in vain 白费力气；枉费心机6.in good/poor condition 状况很好(坏)；情况很好(坏)重点句型1.as if 引导表语从句：It seemed as if(看上去好像是) a clone was a carrier of more weaknesses than its original.2.形容词作状语：“Did she die young(她死得早) because she was a clone？”3.with 复合结构：Diversity in a group means having animals with their genes arranged(基因排列) in different ways.4.The advantage is that...优势是……：The__advantage__is__that(优势是) if there is a new illness some of these animals may die, but others will survive and pass on the ability to resist that disease to the next generation.Read the text carefully and choose the best answer.1．The writer of the text________．A．is excited by the possibility of cloning fierce and extinct animalsB．believes that extinct animals can be brought back to life by cloningC．thinks it impossible or unsuitable to clone extinct animals like dinosaursD．dreams of dinosaurs returning to the earth2．The film Jurassic Park is popular because________．A．people are interested in the subject of cloningB．it was directed by a scientist who clones dinosaursC．all the actors are dinosaursD．it proves very interesting3．The reasons why a group of cloned animals all die of the same illness do NOT include that________．A．they have the same arrangement of genesB．there isn’t enough diversity in the group for it to overcome illnessesC．the illness is a new oneD．their arrangement of genes can not resist that new disease4．We can infer from the text that________．A．scientists are experimenting to clone dinosaursB．dinosaurs will never return to the earthC．cloned animals will only live in the zooD．the DNA of dinosaurs can only survive 10，000 years答案：1－4.CACB①extinct adj.已灭绝的；消亡了的②popularity[ˌpɒpjʊ'lærətI]n.受人喜爱；流行popular adj.受人喜欢的③strike[straIk]v t.& v i.(struck，struck)打；撞击；罢工n.罢工strike...into one’s heart使……刻骨铭心④from time to time不时；偶尔(相当于every now and then)⑤bring back to life使复生；使复活⑥either...or...或者……或者……；要么……要么……(连接并列结构)⑦unsuitable adj.不合适的，不适当的suitable adj.合适的，适宜的suit v t.适合；合身，相配；合(某人心意)n．套装⑧initial[I'nIʃl]adj.最初的；开始的⑨requirement n．要求require v．要求○10in vain白费力气；枉费心机vain[veIn]adj.虚荣的；自负的；徒劳的⑪diversity n．变化，不同，多样化⑫mean doing sth.意味着做某事mean to do sth.打算做某事⑬resist[rI'zIst]v t.抵抗；对抗resist后常接v.­ing作宾语。

课堂探究1....so that when he retired he would be able to look back on his life with satisfaction.……这样当他退休时，他就可以满意地回顾自己的人生了。

考点：retire vi. 退休；离开阅读下列句子，归纳retire的用法①Some of the workers want to retire early.有一些工人想提前退休。

归纳：retire的词性为不及物动词，含义：退休，离开。

②After retiring from the army，he had nothing to do.从军队退役后，他无所事事。

归纳：retire常与介词from搭配，表示“从……退休（役），离开……”。

即学即用语法填空1）Mary said that she would retire ______ the army the next year.翻译句子2）她在55岁就退休了。

________________________________________________________________________ 答案：1）from2）She retired at the age of 55.2．However，the problem that she later developed a serious lung disease bothered scientists.但是，它后来得了严重的肺病，这个问题让科学家们感到烦恼。

that she later developed a serious lung disease是同位语从句。

考点：bother vt./vi.打扰；烦扰；操心；搅扰Don't bother your father.He's thinking about something important.不要打扰你的爸爸。

Ⅰ单句语法填空1．Mr. Liu had no idea what had happened to his son at school.2．He gave the poor girl the schoolbag, which his father bought for him yesterday.3．I have no idea how he has raised so much money in such a short time.4．News has spread that more high school graduates will be admitted into universities.5．The possibility that the majority of the labor force will work at home in the future is strong.6．I’ve come to the conclusion that it was very wise of us to do that.7．There is much chance that Bill will recover from his injury.8．His suggestion that the meeting should be delayed was turned down.9．The question who should do the work requires further consideration.10．We expressed the hope at the airport that they would come and visit China again.Ⅱ阅读理解Aquaculture—or sea farming, as it is sometimes called—is one of the brightest hopes for finding an answer to the problem of a world food shortage. Although it may be years before aquaculture yields(产出) really large quantities of food, it is already partially successful. One of its successes is the growing of oysters(牡蛎)．Oyster farming is a big new business on Cape Cod, where large crops of oysters have been harvested. The waters there were famous for delicious oysters until the supply gave out about fifteen years ago. “There’s a whole generation of people who have never eaten oysters，”says Karl Touraine, marketing director of Aqua Dynamics Corporation, a company that grows oysters on strings hanging from metal racks(金属架). “For about twenty years the oyster has been in short supply, and our aim is to change this by using new, modern growing techniques，”he explains.“Wareham, on Cape Cod, is the first place in the United States where oysters are being grown on racks just off the bottom of the sea，”says Hank McAvoy of the National Marine Fisheries Service in Gloucester. “But there’s nothing new about off­bottom raising, ”Mr. McAvoy adds. “It’s been done successfully in Norway and Australia and, in the last few years, in Spain. The Japanese have used this form of aquaculture for years, and they’re the most successful, with a yearly crop of forty­six thousand pounds of shelled oysters to the acre.”The Aqua Dynamics group grows oysters on strings, away from the bottom so that the oysters’enemies cannot reach them. “When an oyster can avoid enemies and live in unpollutedwater with plenty to eat, he’ll grow fat in four years，”Karl Touraine explains. “Oysters will attach themselves to almost anything they can，”he continues. “At Wareham, we use shells which we tie with nylon strings hanging from metal racks. We lower the strings into the water, leaving at least a foot of water between the lowest shell and the bottom.”“So far the growth has been excellent and the taste is just delightful，”Mr. Touraine notes happily.【解题导语】本文是一篇说明文。

Ⅰ.Match the word with its meaning.1．producer A．related to business and the buying and selling of goods and services2．undertake B．a person or thing that produces3．commercialC．honest and frank，easy to understand or do4．forbid D．to contract to or commit oneself to (something) or (to do something)5．straightforward E．order (sb.) not to do sth.6．accumulate F．gradually get or gather together an increasing number or quantity of (sth.)7．object G．an important new discovery in something you are studying8．breakthrough H．to say that you disagree with答案：1～5BDAEC6～8FHGⅡ. Write down the meaning of phrases in each sentence.1．All my years of training as an explorer have finally paid off ！得到回报，得到好结果2．Large quantities of money have been collected to be sent to the refugees in the flooded area.大量的3．I'm in favour of equal pay for equal work.支持，赞成4．Don't let yourself be cast down by a small failure in the exam.懊丧，不开心5．Internet has a great impact on our society, life, way of thinking and values.对……有很大作用/影响6．Like many skills, guitar playing also comes with different techniques which differ from one person to another.与……不同Ⅰ.How much do you know about clone? What is clone? And what are natural clone and man-made clone?参考答案：Clone is a way of making an exact copy of another animal or plant.Natural clone is one that occurs from the “parent” in a natural form of cloning without human help.Man-made clone is one produced through human intervention (介入)．Ⅱ.Look at the pictures and fill in the blanks.1.Dolly was the first cloned mammal created by a Scottish scientist and his group in 1996.2.The mule in the picture is the world's first cloned mule. It was born on 4 May 2003.3.The kitten in the picture is called Cc. Its name is from“Copycat”．Scientists in the USA created it with a cell taken from its mother, Rainbow. It was born in December 2002.Ⅰ.Fast reading1．Match the following paragraphs with their main ideas.Para.1A．The problems of Dolly the sheep.Para.2B．The two major uses of cloning.Para.3C．The attitudes towards Dolly's appearance.Para.4D．The definition of cloning.Para.5E ．The effect of cloning in society.答案：Paras. 1～5DBACE2．Read the text quickly and fill in the blanks.The text is mainly about the (1)procedure of animal cloning and the life of Dolly the sheep as well as the reasons why cloning is still (2)controversial.Ⅱ.Careful readingRead the text carefully and choose the best answer.1．In Paragraph 2, by mentioning the procedure of cloning Dolly, the author aims to .A．prove that cloning is very valuableB．show that cloning is complicatedC．suggest that both plants and animals can be clonedD．explain when, where and how to clone a sheep2．According to the passage, we can infer that a cloned animal .A．usually lives as long as the original oneB．usually lives longer than the original oneC．is usually as healthy as the original oneD．usually dies earlier than the original one3．From the last paragraph we know that.A．cloning will come to an end because of objectionsB．cloned human beings will be produced in the near futureC．many countries will use cloning in a wise wayD．all the research into human cloning will be forbidden4．What is the author's real attitude to human cloning?A．Negative.B．Positive.C．Neutral. D．Angry.答案：1～4BDCCⅢ.Study readingAnalyze the following difficult sentences in the text.1．It also happens in animals when twins identical in sex and appearance are produced from the same original egg.[句式分析]when引导的是时间状语从句；identical in sex and appearance是形容词短语作定语，修饰twins；when引导的从句的主干是twins are produced。

Ⅰ品句填词1．Scientists are hoping for a breakthrough(突破) in the treatment of cancer.2．By buying ten books every month, he soon accumulated(积累) a good library.3．I’d like to come, too, if you have no objection(反对)．4．Dave has decided to undertake(承担) the training for the new staff.5．People’s tastes in music differ(不同) from person to person—some are fond of classical music while others enjoy pop music.6．I feel it necessary to make a correction(改正)．7．For someone who can’t read, shopping is by no means a straightforward(简单的) matter.8．Altogether(总共) 45% of them will use the Internet as a tool to study.9．It is forbidden(禁止)to smoke in this room.10．We need to know the exact(精确的) time the incident occurred.Ⅱ单句改错1．Your umbrella is identical for mine, so I took yours by mistake this morning.for→with/to 2．His hard work was paid off when he was appointed as manager of our department.去掉第一个was3．I object to leave the little boy alone at home.leave→leaving4．The headmaster is in the favour of the idea that students should be given more freedom.去掉第一个the5．John is strongly convinced that extra time spent studying now will pay for in the future.for→offⅢ课文语法填空Cloning is a way of making an exact copy of another animal or plant. 1.It has two major uses. One is that gardeners use it to produce commercial 2.quantities(quantity) of plants. The other is that it is 3.valuable(value) for research on new plant species and for medical research on animals. However, the procedure of cloning is difficult 4.to_undertake(undertake)．On the one hand, the first successful clone, Dolly the sheep, 5.made(make) the whole scientific world follow its progress, though it had 6.more(many) problems than the normal sheep. On the other hand, Dolly’s 7.appearance(appear) raised a storm of objections and had a great impact 8.on the media and public imagination. Different people have different opinions on it.9.However,_scientists still wonder whether cloning will help or harm us and 10.where it is leadingus.Ⅰ单句语法填空1．He was admitted into Beijing University, and his years of hard work paid off．2．He undertook to_finish(finish) the work, however difficult it is.3．To be honest, I object to being_laughed(laugh) at in public.4．We may ask her a few questions to make sure we know exactly(exact) what she wants.5．It’s reported that there’s a big breakthrough in the cancer treatment.6．I think it is her personality rather than her look that has struck me.7．He said that he had made a few small corrections(correct) to your report.8．All the girls were cast down to find that the famous star had left.9．No one believed him, but he felt morally(moral) responsible for the accident.10．Some people waste food while others haven’t enough.Ⅱ阅读理解When you hear the name Greenland, you might think of a place with warm weather and lots of leafy forests. In reality, about 80 percent of this Arctic island is covered by a sheet of ice—and now that ice is melting fast. As a result, NASA has sent a robot to help save the island’s ice.To determine how to do that, scie ntists need to learn more about how and why Greenland’s ice sheet is changing. But sending human researchers to study the ice sheet on snowmobiles and in aircraft can be expensive and time-consuming.So a group of college students at a NASA engineering summer camp came up with an alternative. They invented a robot known as GROVER. On May 3, NASA sent GROVER to Greenland to begin gathering data on the changes that the ice sheet is undergoing.Last summer alone, more than 97 percent of Greenland’s icy surface experienced some melting. Some scientists predict that in 2，000 years, the entire ice sheet will be one big puddle(水坑) because of rising temperatures in the region. That’s bad news. If the ice sheet completely melts, sea levels will rise. Rising sea levels around the world could bring about severe flooding, and some small islands could even disappear beneath the waves.That’s why, during the next month, GROVER will travel for more than 400 miles over the ice sheet. GROVER will be able to work longer and gather more data than any scientist on a snowmobile could. The 6-foot-tall, 800­pound robot is powered by solar energy. It will be able to run anytime throughout the day or night because the sun never sets below the horizon(地平线) during the Arctic summer.“Robots like GROVER will give us a new tool for glaciology(冰川学) studies，”says NASA glaciologist Lora Koenig.Scientists hope this is just the beginning for GROVER. If the robot completes its first test, NASA plans to send GROVER out to explore the ice sheet for many months at a time.【解题导语】本文是说明文。