2018高中英语(人教版)选修八同步作业：Unit 4 Section 2 课末 Word版含答案
2017-2018学年人教版高中英语选修八课时作业：Unit 4 PygmalionSection Ⅱ Learning about Language Word
4.2 新提升·课时作业Ⅰ.单句语法填空1．On his way home from business, he was robbed ________ his money.2．We are ________(disgust) at the standard of service we received.3．The details in your composition shouldn't ________(overlook); otherwise you will keep them forever.4．Sarah showed Betty ________ her garden for she wanted to show her flowering roses to her.5．He said angrily to me that he was fully ready for an argument ________ his boss ________ the delayed pay.6．They took ________(effect) measures to prevent poisonous gases from escaping.7．The TV set is already ten years old, so the sound is not as good as before and to make matters worse, the pictures suddenly began to fade ________ yesterday.8．I forgot to buy milk in the store; therefore I had to go there once ________.9．The refugees are ________ need of food, water and clothing. So urgent measures should ________(take)．10．The driver of the red car was just starting ________ a black one came up very quickly.答案：1.of 2.disgusted 3.be overlooked 4.around5．with; over 6.effective 7.out 8.more/again9．in; be taken 10.whenⅡ.用方框内所给短语的适当形式填空1．I failed in the experiment, but I decide to do it ________ and I believe I will make it.2．They made every effort to save the crops ________ water on this dry land.3．Your visit will ________ the sting of her sorrow.4．The idea seemed to ________ and the club was never formed.5．The host and hostess ________ their guests ________ the party room.6．He was ________ and didn't notice the car in front of him.7．The robber ________ the woman ________ her handbag last night.8．I do not know how you ________ such a terrible thing.9．Please give me ________ paper.10．He started to chat to me and I could tell that he really ________.答案：1．once more 2.in need of 3.take away 4.fade out5．showed; in 6.deep in thought 7.robbed; of 8.have the face to do 9.a bit of 10.fancied himselfⅢ.完成句子1．Yesterday a young man ______________(抢了这位女士的包) in the street.2．The boy behaves so well that he ______________(值得赞扬)．3．________________ (容易忽略) a small detail like that. (it, overlook)4．If you ________________ (需要任何东西), come here for help. (need n．)5．If John had told me about going to hospital, I ________________ (会跟……一起去) him.6．______________ (我曾经以为) I would be a teacher but I am a nurse now.7．We didn't decide ______________ (我们下一步该做什么)．8．______________ human beings ______________ animals (……和……都不能) will live without air and water.9．______________ (出去怎么样) for a picnic this weekend?答案：1．robbed the lady of her wallet2．deserves to be praised或deserves praising3．It is easy to overlook 4.are in need of anything5．would have gone with 6.I thought 7.what we should do next 8.Neither; nor 9.How about going outⅣ.语法填空When I was a ten－year－old girl, I was once asked to deliver a speech titled “A Real Test in My Life” to talk before the whole class! Just imagine how __1__(terrible)shy I was the moment I thought of that with so many eyes fixed upon me. I had no other __2__(choose), though. First I was to draft the speech and that was just a piece of cake for me, because I was a good writer—something to pride myself in. But the hard part __3__(lie) in my oral presentation: to read from __4__ paper was not allowed；I had to give the speech __5__ my memory and in front of such a big audience! A real trial began when I stood on the platform with my legs __6__(tremble)and my mind blank. How much time had passed by, I didn't know. Mylisteners were still waiting, patiently and without any signs of rushing me. Gradually I found __7__ back, giving out my speech with difficulty. Finally I finished. After __8__ seemed to be a hundred years, I found my audience applauding. I made it! From then on, my fear of talking before an audience disappeared. Actually with my confidence building up, I now turn out to be a great speaker. Looking back, I know the __9__(great)difficulty on our way to success is our fear；overcome it, __10__ we will be able to achieve our goals.答案：1．terribly 2.choice y 4.the 5.from 6.trembling 7.myself 8.what 9.greatest 10.andⅤ.阅读理解I learnt about the Pygmalion Effect (皮格马利翁效应) when I was 7 years old at Riverdale School in Palmerston North and I copied Melissa Crawford's answers in a spelling test. Before that I was average at school but after that, because Melissa Crawford was smart, and I got all the right answers, I got put in all the smart kids groups. From then I did really well at school because it was believed by the teachers that I would and I also got grouped with the smart kids. This experience that occurred at my primary school shows just how important the Pygmalion Effect is in terms of being around mentors (导师) that expect that you're going to do well and also being around people who are smart.The Pygmalion Effect is one principle you want to use if you want to make money fast. Have mentors that expect you will make money fast and as an extra boost hang around, copy and learn from other people who are also making money fast.Yesterday this site had over 5,000 unique visitors and the traffic to it is increasing all the time. A year ago I contacted a group of people who got lots of traffic in their sites and I learnt from them. Truthfully, I don't know if they expected me to start getting decent traffic to websites but I imagined they did so they might as well have.So there you have it, the Pygmalion Effect.P. S. My grammar and spelling are not that great nowadays but that's actually completely irrelevant (不相关的) when it comes to getting lots of visitors to your site.1．When did the author learn about the Pygmalion Effect?A．Before he took the spelling test.B．After he cheated in the spelling test.C．When he did badly in exams.D．After he finished primary school.2．The author got grouped with the smart kids because ________.A．he was an average pupil at schoolB．he did better than expectedC．Melissa Crawford was smartD．he did better than all the others at school3．What does the underlined word “traffic” mean in the third paragraph?A．Amount of vehicles.B．Amount of travellers.C．Amount of visits.D．Amount of goods.4．From the passage we can infer that ________.A．the author was busy meeting visitors every dayB．there was lots of traffic in his cityC．the author opened a website himselfD．the author's grammar was poor at school答案与解析：文章通过作者自己的经历告诉我们皮格马利翁效应的神奇力量。
2018-2019学年人教版高中英语选修八检测Unit 4 Section Ⅱ 作业 Word版含答案
Unit 4Section ⅡⅠ.单词拼写1．Believersof__Buddhism__(佛教) stillcomeherefortheir__religious__(宗教的) services.2．Thepalaceisfullofpriceless__antiques__(古玩)．3．Thoseboysintendedto__rob__(抢劫) themainpostoffice.4．Shelikestowearsilk__stockings__(长袜)．5．His__musical__(音乐的)skillwassobrilliantthathewonscholarships.Ⅱ.单句语法填空1．Peterwasrobbed__of__hiscarandmobilephone.2．Iseethevaseinthewindowof__an__antiqueshop.3.__Absorbed__(absorb)inpainting, Johndidn’tnoticeeveningapproaching.4．__Seen__(see)fromthetopofthehill，thecitywasextremelybeautiful.5.Clearlyandthoughtfully__written__(write), thebookinspiresconfidenceinstudentswhowishtoseektheirownanswers.6．__Founded__(found)intheearly20thcentury, theschoolkeepsoninspiringchildren’sloveofart.7．Although__left__(leave)aloneathome，thelittleboydidn’tfeelafraidatall.8．__Puzzled__(puzzle)bytoomanyoftheirproblems, Ididn’tknowhowtodealwiththosechildren.9．Themoonroseslowlyintheskyandthetide(潮汐)wentout, __leaving__(leave) behindalotofseashellsonthebeach.10．__Compared__(compare)withthesizeofthewholeearth, thebiggestoceandoesnotseembigatall.Ⅲ.根据汉语提示用含过去分词的表达完成下列句子(每空一词)1．__Whenseenintheevening__(在夜晚看时), lightsontopoftallbuildingslooklikestarsinthesky.2．__Satisfiedwithwhathedid__(对他所做的事情很满意), theteacherpraisedhiminclass.3．__Eveniftrained__(即使训练) for10hourseveryday, hewillstillbeafool.4．__Oncepublished__(一旦出版), thisbookwillbepopularwiththestudents.5．__Robbedof__(被抢了) allhismoney, hehadtotelephonehisparentsforhelp.Ⅳ.阅读理解AHarperLee, whose1961novel ToKillaMockingbird ontheracialtroublesoftheAmericandeepsouth, hasdiedattheageof89.Untillastyear,Leehadbeensomethingofaone-bookliterarylegend.ToKillaMockingbird soldmorethan40millioncopiesaro undtheworldandearnedheraPulitzerprize, remainingatoweringpresenceinAmericanliterature.Anothernovel, GoSetaWatchman, wascontroversiallypublishedinJuly2015asa“sequel”to Mockingbird,thoughitwaslaterconfirmedtobe Mockingbird’s firstdraft.Butfromthemoment Mockingbird waspublishedtoalmostinstantsuccess, theauthorconsistentlyavoidedpublicattention.Leehadlivedforseveralyearsinanursinghomenearthehousein whichshehadgrownupinMonroeville,Alabama—thesettingforMaycomb ofherfamousbook.Herneighborfor40years, SueSellers, said, “She was such a private person.All she wanted was privacy, but she didn’t get much.There was always somebody following her around.”JamesNaughtie, BBCBooksEditor, commentedonthenovelsofHarperLee: “I think she stands, particularly among American readers, as someone who shone a light into a very dark place.She was writing at a time when people were beginning to lift the lid on everything in the South which they’d chosen not to understand.That all changed in the 1960s.So I think her status for writing that book in its extraordinarily direct way will remain.”语篇解读：文章介绍了美国著名女作家哈珀·李及其成名作《杀死一只知更鸟》。
2018高中英语选修八人教版课后作业：unit 4 pygmalion4.3 含答案
Section Ⅲ— Grammar课后篇巩固探究一、单句填空1.—Who should be responsible for the accident?—The boss,not the workers.They just carried out the order as(tell).答案:told2. (drive)by a greater demand for vegetables,farmers have built more green houses.答案:Driven3.The flowers his friend gave him will die unless (water) every day.答案:watered4. (mail)out automatically,the e-mail will b e received by all the club members.答案:Mailed5. (face)with so much trouble,we failed to complete the task on time.答案:Faced6. (blame)for the breakdown of the school computer network,Alice was in low spirits.答案:Blamed7.No matter how frequently (perform),the works of Beethoven still attract people all over the world.答案:performed8. (lost)in the mountains for a week,the two students were finally saved by the local police.答案:Lost二、变式训练1.Supported by his parents,he managed to open a store successfully.,he managed to open a store successfully.答案:Because he was supported by his parents2.Praised by the public,he still felt that he should work harder.,he still felt that he should work harder.答案:Although he was praised by the public3.Having said what he wanted to say,he went away.[来源:学*科*网Z*X*X*K],he went away.答案:After he said what he wanted to say4.Lost in thought,he almost knocked into a tree.,he almost knocked into a tree. 答案:Because he was lost in thought5.Hit by a car,he almost lost his life.,he almost lost his life.答案:When he was hit by a car三、完成句子[来源:学科网ZXXK]1. (在夜晚看时),lights on top of tall buildings look like stars in the sky.答案:When seen in the evening2. (对他所做的事情很满意),the teacher praised him in class.答案:Satisfied with what he did3. (即使训练)for three hours every day,he will still be not good at this game.[来源:学科网ZXXK]答案:Even if trained4. (一旦出版),this book will be popular with the students.答案:Once published5. (被抢了)all his money,he had to telephone his parents for help.答案:Robbed of6. (被那个故事深深地感动),the excited people burst into tears.答案:Deeply moved by the story7. (受到演讲的鼓舞),the。
2018-2019学年人教版高中英语选修八检测：Unit 4 Section Ⅱ 作业 Word版含答案
Unit 4Section ⅡⅠ.单词拼写1．Believers of __Buddhism__ (佛教) still come here for their __religious__ (宗教的) services.2．The palace is full of priceless __antiques__ (古玩)．3．Those boys intended to __rob__ (抢劫) the main post office.4．She likes to wear silk __stockings__ (长袜)．5．His __musical__ (音乐的)skill was so brilliant that he won scholarships.Ⅱ.单句语法填空1．Peter was robbed __of__ his car and mobile phone.2．I see the vase in the window of __an__ antique shop.3. __Absorbed__ (absorb)in painting, John didn’t notice evening approaching.4．__Seen__ (see)from the top of the hill，the city was extremely beautiful.5. Clearly and thoughtfully __written__ (write), the book inspires confidence in students who wish to seek their own answers.6．__Founded__ (found)in the early 20th century, the school keeps on inspiring children’s love of art.7．Although __left__ (leave)alone at home，the little boy didn’t feel afraid at all.8．__Puzzled__ (puzzle)by too many of their problems, I didn’t know how to deal with those children.9．The moon rose slowly in the sky and the tide(潮汐)went out, __leaving__ (leave) behind a lot of seashells on the beach.10．__Compared__ (compare)with the size of the whole earth, the biggest ocean does not seem big at all.Ⅲ.根据汉语提示用含过去分词的表达完成下列句子(每空一词)1．__When seen in the evening__ (在夜晚看时), lights on top of tall buildings look like stars in the sky.2．__Satisfied with what he did__ (对他所做的事情很满意), the teacher praised him in class.3．__Even if trained__ (即使训练) for 10 hours every day, he will still be a fool.4．__Once published__ (一旦出版), this book will be popular with the students.5．__Robbed of__ (被抢了) all his money, he had to telephone his parents for help.Ⅳ.阅读理解AHarper Lee, whose 1961 novel To Kill a Mockingbird on the racial troubles of the American deepsouth, has died at the age of 89.Until last year, Lee had been something of a one-book literary legend.To Kill a Mockingbird sold more than 40 million copies around the world and earned her a Pulitzer prize, remaining a towering presence in American literature.Another novel, Go Set a Watchman, was controversially published in July 2015 as a “sequel” to Mockingbird, though it was later confirmed to be Mockingbird’s first draft.But from the moment Mockingbird was published to almost instant success, the author consistently avoided public attention.Lee had lived for several years in a nursing home near the house in which she had grown up in Monroeville, Alabama—the setting for Maycomb of her famous book.Her neighbor for 40 years, Sue Sellers, said, “She was such a private person.All she wanted was privacy, but she didn’t get much.There was always somebody following her around.”James Naughtie, BBC Books Editor, commented on the novels of Harper Lee: “I think she stands, particularly among American readers, as someone who shone a light into a very dark place.She was writing at a time when people were beginning to lift the lid on everything in the South which they’d chosen not to understand.That all changed in the 1960s.So I think her status for writing that book in its extraordinarily direct way will remain.”语篇解读：文章介绍了美国著名女作家哈珀·李及其成名作《杀死一只知更鸟》。
高中英语(人教版)选修八同步作业：Unit 4 Section 2 课后 Word版含答案(精修版)
人教版英语精品资料（精修版）Unit 4Section ⅡⅠ.单句语法填空1.（2016·天津卷改编）The cooling wind swept through our bedroom windows, making(make) air conditioning unnecessary.解析：考查非谓语动词。
句意：冷风通过我们卧室的窗户吹进来，使得开空调变得没有必要。
现在分词作结果状语，表示自然而然地结果。
2.When finished(finish)，the paper should be turned in without delay.解析：考查非谓语动词。
句意：一旦完成，文件应立刻上交。
the paper 与finish之间是被动关系。
过去分词作时间状语。
3.Inspired(inspire) by what he said, the girl student decided to work harder.解析：考查非谓语动词。
句意：在他的话的鼓励下，女学生决定更努力地学习。
the girl student 与inspire之间是被动关系。
过去分词作原因状语。
4.He hurried to the hall, followed(follow) by two guards.解析：考查非谓语动词。
句意：他快步走向大厅，身后跟着两个卫兵。
过去分词作伴随状语，表示follow与主语之间是被动关系。
5.Asked /Having been asked(ask) many times, he still hasn't said a word about the matter.解析：考查非谓语动词。
句意：虽然已被问了好几次，对这件事他仍只字未提。
过去分词作让步状语。
6.Exhausted(exhaust) by the journey, he soon fell asleep.解析：考查非谓语动词。
2017--2018学年人教版选修八Unit 4 Pygmalion Using language课时作业(2)
Unit 4 Pygmalion Using language课时作业Ⅰ.阅读理解阅读下列短文，从每题所给的四个选项(A、B、C和D)中，选出最佳选项。
A"A writer is always alone, always an outsider," Ernest Hemingway said. Others said that of the many people he created in his books, Hemingway was his own best creation.Ernest Hemingway, born in 1899, grew up in Oak Park, Illinois, near the West Side of the city of Chicago. His father, Clarence Edmonds, was a doctor. His mother liked to paint and play the piano. Each summer the family traveled to their holiday home in northern Michigan. Hemingway‟s father taught him how to catch fish, hunt, set up a camp and cook over a fire. At home, Hemingway always wrote for his school newspaper, imitating the language of a famous sportswriter of that time, Ring Lardner. He developed his writing skills this way.In 1917, Hemingway decided not to go to a university and found a job with The Kansas City Star newspaper in Kansas City, Missouri. He reported news from the hospital, police headquarters, and the railroad station. One reporter remembered: "Hemingway liked to be where the action was." The Kansas City Star demanded that its reporters write short sentences. It wanted reporters to see the unusual details in an incident. Hemingway quickly learned to do both. He worked for the newspaper only six months. Then Hemingway left the newspaper and attempted to join the U.S. Army so that he could fight in World War Ⅰ. But the Army rejected him for his eyesight was not good enough, so he responded to a Red Cross recruitment(征募) effort and signed on to become an ambulance driver in Italy.His job was to drive a Red Cross truck carrying the wounded away from battle. He went as close to the fighting as possible to see how he would act in the face of danger. Before long, the war ended. Hemingway returned to the United States. Less than a year had passed since he went to Europe. But in that short time he had changed forever. He needed to write about what he had seen.Ernest Hemingway left home for Chicago to prove himself. But he ran out of money and began to write for a newspaper again. The Canadian newspaper, the Toronto Star, liked his reports about life in Chicago and paid him well.In Chicago, Hemingway met the writer Sherwood Anderson, who was one of the first writers in America to write about the lives of common people. Hemingway saw that Anderson‟s stories showed life as it really was, the way Hemingway was trying to do. Anderson gave Hemingway advice on his writing. He told Hemingway to move to Paris, which was full of young artists and writers from all over the world.So Hemingway decided to move to Paris. Paris was cold and gray when Hemingway and his wife arrived in 1921. They lived in one of the poorer parts of the city. Their rooms were small and had no running water. But the Toronto Star employed him as its European reporter, so there was enough money for the two of them to live. And the job gave Hemingway time to write his stories.Hemingway‟s first book of stories was cal led In Our Time, which included a story called Big Two-Hearted River about the effect of war on a young man. Big Two-Hearted River is considered one of the best modern American stories. The story shows the young man trying to forget his past, especially trying to forget the war. The reader learns about the young man, not because Hemingway tells us what the young man thinks, but because he shows the young man learning about himself. Another long story, The Sun Also Rises, is about young Americans in Europe after World War Ⅰ. The war had destroyed their dreams. And it had given them nothing to replace those dreams. The writer Gertrude Stein later called these people members of the "Lost Generation". The book was an immediate success.Many people, however, cou ld not recognize Hemingway‟s art because they did not like what he wrote about. Hemingway‟s sentences were short, the way he had been taught to write at The Kansas City Star newspaper. He wrote about what he knew and felt. He used few descriptive words. His statements were clear and easily understood.1. How did Hemingway develop his writing skills at school?A. By working part-time for a newspaper.B. By taking professional writing courses.C. By writing for his college newspaper.D. By learning from a famous sportswriter.2. Why wasn‟t Hemingway allowed to join the Army?A. Because of his low education.B. Because of his parents‟ strong opposition.C. Because of his poor ability to see.D. Because of his disadvantaged political background.3. What does the underlined sentence mean?A. Hemingway enjoyed collecting news material on the scene.B. Hemingway took action actively to fight against war.C. Hemingway was eager to broaden his horizons.D. Hemingway had loads of life experience.4. Why did Hemingway move to Paris?A. To escape from the war.B. To perfect his writing skills.C. To visit Sherwood Anderson.D. To gain a high-income job.BAre some people born clever, and others born stupid? Or is intelligence developed by our environment and our experience? Strangely enough, the answer to these questions is yes. To some extent our intelligence is given to us at birth, and no amount of special education can make a genius out of a child born with low intelligence. On the other hand, a child who lives in a boring environment will develop his intelligence less than one who lives in rich and varied surroundings. Thus the limits of person‟s intelligence are fixed at birth, but whether or not he reaches those limits will depend on his environment. This view, now held by most experts, canbe supported in a number of ways.It is easy to show that intelligence is to some extent something we are born with. The closer the blood relationship between two people, the closer they are likely to be intelligence. Thus if we take two unrelated people at random from population, it is likely that their degree of intelligence will be completely different. If on the other hand we take two identical twins, they will very probably be as intelligent as each other. Relations like brothers and sisters, parents and children, usually have similar intelligence, and this clearly suggests that intelligence depends on birth.Imagine now that we take two identical twins and put them in different environments. We might send one, for example, to a university and the other to a factory where the work is boring. We would soon find differences in intelligence developing, and this indicates that environment as well as birth plays a part. This conclusion is also suggested by the fact that people who live in close contact with each other, but who are not related at all are likely to have similar degree of intelligence.5. Which of these sentence best describes the writers‟s point in Paragraph 1?A. To some extent, intelligence is given at birth.B. Intelligence is developed by the environment.C. Some people are born clever and others born stupid.D. Intelligence is fixed at birth, but is developed by the environment.6. It is suggested in this passage that ________.A. close relation usually have similar intelligenceB. unrelated people are not likely to have different intelligenceC. the closer the blood relationship between people, the more different they are likely to be in intelligenceD. people who live in close contact with each other are not likely to have similar degrees of intelligence7. The phrase “ at random” (Line 3, Para.2) means ________.A. purposelyB. rationallyC. aimlesslyD. independently8. The best title for this article would be “________”.A. What Does Intelligence Mean?B. On IntelligenceC. We are Born with IntelligenceD. Environment Plays a Part in Developing IntelligenceⅡ.完形填空阅读下面的短文，从短文后各题所给的四个选项(A、B、C和D)中，选出可以填入空白处的最佳选项。
高中英语（人教版）选修八同步作业：Unit4Section2课后含答案
⾼中英语（⼈教版）选修⼋同步作业：Unit4Section2课后含答案Unit 4Section ⅡⅠ.单句语法填空1.（2016·天津卷改编）The cooling wind swept through our bedroom windows, making(make) air conditioning unnecessary.解析：考查⾮谓语动词。
句意：冷风通过我们卧室的窗户吹进来，使得开空调变得没有必要。
现在分词作结果状语，表⽰⾃然⽽然地结果。
2.When finished(finish)，the paper should be turned in without delay.解析：考查⾮谓语动词。
句意：⼀旦完成，⽂件应⽴刻上交。
the paper 与finish之间是被动关系。
过去分词作时间状语。
3.Inspired(inspire) by what he said, the girl student decided to work harder.解析：考查⾮谓语动词。
句意：在他的话的⿎励下，⼥学⽣决定更努⼒地学习。
the girl student 与inspire之间是被动关系。
过去分词作原因状语。
4.He hurried to the hall, followed(follow) by two guards.解析：考查⾮谓语动词。
句意：他快步⾛向⼤厅，⾝后跟着两个卫兵。
过去分词作伴随状语，表⽰follow与主语之间是被动关系。
5.Asked /Having been asked(ask) many times, he still hasn't said a word about the matter.解析：考查⾮谓语动词。
句意：虽然已被问了好⼏次，对这件事他仍只字未提。
过去分词作让步状语。
6.Exhausted(exhaust) by the journey, he soon fell asleep.解析：考查⾮谓语动词。
2018-2019学年高中英语(人教版)选修八Unit 4 Pygmalion language points课时作业 (2)
Unit 4 Pygmalion language points课时作业Ⅰ.阅读理解Living in the wild can be hard. Finding food and staying safe aren't easy. Each day, animals struggle to in their habitats. Not all animals get by on their own. Some animals form a close partnership with other kinds of animals. These pairings are called symbiotic (共生的)In a symbiotic relationship, the animals depend on each other. One animal helps the other meet its needs. Sounds good, right? Not always. Some animals are not very kind to their partners. In some cases, one animal meets its needs but hurts its partner. Take ticks (壁虱) for example. These insects suck blood to live. To get blood, they attach themselves to other kinds of animals. Ticks can pass germs that cause disease instead of helping their hosts.In other relationships, animals don't treat their so poorly. Both animals benefit, or get help, from with the other animal.Small animals called cleaner shrimps have found a way of helping fish at coral reefs. As their name suggests, the shrimps clean the fish. They hang out at what scientists call a cleaning station. A fish stops by. Then a shrimp climbs onto the fish and even steps into the fish's mouth. The shrimp uses its tiny claws to pick stuff off the fish's body. That can include dead skin, tiny pieces of food, and wee creatures that can hurt the fish. The fish gets a nice cleaning. The shrimp enjoys a tasty meal of fish trash.Small birds called plovers are also in the cleaning ness. They have big customers, crocodiles. Crocodiles have long snouts (口鼻部) filled with sharp teeth. Cleaning them is tricky. When a crocodile opens its mouth, the plover hops right in. The crocodile does not snap its snout shut. Instead, it lets the plover eat small, harmful animals attached to its teeth. The plover gets an easy meal while the crocodile gets clean teeth.语篇解读：本文介绍了共生环境中动物的生活习性。
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Unit 4Section Ⅱ
单句语法填空。
1.The new technology, if applied(apply) to rice growing, will help increase the grain output.
解析：句意：这项新的科技，如果被用在水稻种植上，将有助于提高谷物的产量。
句子的主语为The new technology，与非谓语动词是逻辑上的被动关系，因此用过去分词短语作状语。
2.Though disappointed(disappoint) to know he wouldn't get the job after the interview, Frank thanked us politely.
解析：句意：尽管弗兰克在面试后很失望地得知他不会得到这份工作，但他还是礼貌地谢了我们。
在这里“Though”引导的从句是个省略句，补全应是Though(Frank was)disappointed to know he wouldn't get the job after the interview。
pared(compare) with 2010 in China, the number of students choosing(choose) to study art is rising a lot.
解析：句意：与2010年相比，在中国选择学习艺术的学生数量在大幅增加。
考查非谓语动词作状语和定语。
动词compare与句子的主语the number of students之间为逻辑上的被动关系，故用过去分词形式。
动词choose与所修饰词students之间为逻辑上的主动关系，故用现在
分词作定语，表主动。
4.Given(give) more attention, the tree could have grown better.
解析：句意：如果给这棵树更多的关注，它本可以长得更好。
give与句子的主语the tree之间为逻辑上的被动关系，故用过去分词形式。
5.The flowers his friend gave him will die unless watered(water) every day.
解析：句意：如果不天天浇水，他朋友给他的这些花会死掉的。
考查过去分词作条件状语。
water与句子的主语the flowers之间为逻辑上的被动关系，故用过去分词形式。
6.The room, although supposed(suppose) to be kept locked, was often left open.
解析：句意：尽管这个房间应该锁着，但它常常是开着的。
考查过去分词作让步状语。
be supposed to do sth.应该做某事，suppose与句子的主语the room之间为逻辑上的被动关系，故用过去分词形式。
7.Although brought(bring) up in the city, he knows a lot about farming. 解析：句意：尽管在城市成长，但他对农耕了解甚多。
考查过去分词作让步状语。
bring up与句子的主语he为逻辑上的被动关系，用过去分词形式。