高二英语下学期期中考试题及答案解析.doc

高二年级下学期期中考试单项选择 (15分)1. With an online course Lynn has over 300, 000 students all over China _ her class through the Internet. A. attending B. attended C. attend D. are attending 2. There is no doubt _ youll be warmly welcomed by people there.A. if B. whether C. that D. about3. Though he didnt_an important position,he got along very well with almost every-body and was trusted by most of his leaders.A. attendB. make C. holdD. stand4. Our team _ theirs by the score 2:1 in the final football match.A. won B. hit C. beat D. failed5. -Do you often go to the park?-Yes, Ive visited it _ times.A. score of B. scores of C. three scores of D. many scores6. He asked them to come to his office one _. A. at a time B. at all time C. at times D. at one time7. The old man _ morning exercises. A. is used to do B. got into the habit to doC. has got into the habit of doing D. get used to do8.He thought the painting was of little _, so he let me have it only for ten pounds. A. cost B.value C.price D.expense9.You cant _possession of the house until all papers have been signed. A.move B.take C.catch D.show10.-Did Linda see the traffic accident? -No,no sooner _than it happened. A. had she gone B.she had gone C.has she gone D.she has gone11.If you are travelling _the customs are really foreign to your own, please do as the Romans do. A.in which B. what C.when D.where12.After all the harm she has done, she _ whatever she gets. A.costs B.deserves C.appoints D.obtain13.Every one of us hoped that he would _after a few days treatment in the hospital.A.bring up B.grow up C.look up D.pick up14.The boy was so _ in reading that he didnt hear his father knocking at the door.A.drawn B.absorbed C.valued D.talented15.-How are you getting on? -Fine. I think I have been used _ now. A. to work hard B. to hard work C. work hard D. hard work第二节完形填空(共20小题；每小题1.5分，满分30分)阅读下面短文，理解大意，从题中所给的A、B、C、D四个选项中选出一个最佳答案。In the past, man did not have to think about the protection of his environment. There were few people on the earth, and natural resources seemed to be_16_. Today things are_17_；the world has become too_18_. We are using up our natural resources too quickly, and at the same time we are_19_our environment with dangerous chemicals. If we continue to do this, human life on the earth_20_survive.Everyone_21_today that if too many fish are taken from the sea, there will soon be none left. Yet, with modern fishing_22_，more and more fish are caught. We know that if too many trees are cut down, _23_will disappear and nothing will grow on the land. Yet, we_24_to use bigger and more powerful machines to_25_more and more trees.We realized that if rivers are polluted by waste products from factories, we will die._26_，in most countries wastes are_27_put into rivers or into the sea, and there are_28_laws to stop this.We know, too, that if the_29_of the world continues to_30_at the present rate, in a few years, there will not be enough houses and there will not be more food_31_for everyone. Land that is used to grow crops_32_five times more people than land where animals are kept.Our natural resources will_33_longer if we learn to recycle them. The world population will not rise so quickly if people use modern methods of birth_34_.Finally, if we educate people to think about the problems, we shall have a better and cleaner_35_in the future.16A.beautifulBunlimited CrareDvaluable17A.commonBthe same CchangeableDdifferent18A.crowdedBsmall CdirtyDbusy19A.protectingBsaving CpollutingDfighting20A.may notBwill not Cshall notDcould not21A.wondersBrealizes CconsidersDdiscovers22A.polesBboats CmethodsDideas23A.mountainsBthe sea CtreesDforests24A.continueBhave CoughtDgo on25A.growBplant CsaveDcut down26A.ThusBHowever CGenerally speakingDTherefore27A.stillBeven CalsoDcertainly28A.too manyBa few CsomeDfew29A.productionBpollution CpopulationDrevolution30A.improveBproduce CriseDraise31A.normalBavailable CfamiliarDcomfortable32A.feedsBincreases CsuppliesDhelps33A.useBstay CkeepDlast34A.controlBborn CplanDreward35A.natureBsea CplanetDforest第三部分.阅读理解(每小题2分，共40分)阅读下面的短文，从每题所给的四个选项(A、B、C、D)中，选出最佳选项。A1970 was“World Conservation Year”. The Moduleed Nations wanted everyone to know that the world is in danger. They hoped that government would act quickly in order to conserve nature. Here is one example of the problem. At one time there were, 1,300 different plants, trees and flowers inHolland, but now only 860 remain. The others have been destroyed by modern man and his technology. We are changing the earth, the air and water, and everything that grows and lives. We cant live without these things. If we continue like this, we shall destory ourselves.What will happen in the future? Perhaps it is more important to ask，“What must we do now？”The people who will be living in the world of tomorrow are the young of today. A lot of them know that conservation is necessary. Many are helping to save our world. They plant trees in forests, build bridges across rivers, and so on. In a small town in the Moduleed States a large group of girls cleaned the banks of eleven kilometers of their river. Young people may hear about conservation through a record called NO ONES GOING TO CHANGE OUR WORLD. It was made by the Seattles, Cliff Richard and other singers. The money from it will help to conserve wild animals.36There are fewer plants, trees and flowers in Holland now because _.AHolland does not need so many plants, trees or flowersBmany plants, trees and flowers dont grow there any moreCsome of them are uselessDthey are polluted37We shall destroy ourselves if we dont_.Ago on cutting the plantsBbuild bridges across riversCtry our best to save the worldDconserve wild animals38NO ONES GOING TO CHANGE OUR WORLD was_.Aan important book published in 1970Ba talk given by an official from the United NationsCa record calling on people to conserve natureDa film made to protect nature39What is the most important thing for us to do to save our world?AWe should join the singers to collect money.BWe should stop hunting wild animals.CWe should know what would happen in the future.DWe should know what we should do and begin to do it now.BScientists have recently discovered that animals that live in groups, such as elephants, foxes, and wolves, are more likely to follow rules. If they dont, and each does its own thing, the group will probably break apart. Group members would be forced to live alone, and would have a harder time hunting and raising their young. Thats probably why a traveling wolf pack was seen stopping and waiting for its limping (跛行的) leader to catch up. Similar social ties are believed to be responsible for a captive elephant saving her friend from drowing.Sometimes, though, animals try their best to do whats right, even when theres nothing in it for them. Nobody knows exactly why.“It might simply feel good to be kind, just as it does for humans，”says Bekoff. If your friend wasnt nice to you, what would you do? Maybe you would just walk away. Thats exactly what a wild red fox did when she was playing boxing with another fox.Toby was a generous cat. For ten years, the kind kitty shared his food with a spaniel (长耳狗) named Katie. After supper, owner Linda Gustafson always divided up the table scraps. Shed drop some in Katies bowl on the floor and some in Tobys dish on the kitchen counter. Gustafson kept the cats dish up high to keep Katie from stealing Tobys treats. As it turned out, Katie didnt need to steal; she only had to beg. Every night, the spaniel ate her food in a few seconds. Then shes sit and stare at the cat and every night. Toby would be nice. Using his paw, hed flick several pieces of tasty food down to the waiting pup. Apparetnly Katie appreciated it, because whenever she was curled up in her beanbag bed and the cat walked over, she would give up her nice, warm spot.“Toby would then lie down in center of the beanbag，”says Gustafson, “and Katie would lie on the floor.”40The reason why some animals prefer to live in groups lies in that _.Athey have to follow natural rulesBthey are afraid of staying aloneCthey cannot find food by themselvesDliving alone would make their lives harder41According to Bekoff, animals try their best to do whats right because _.Ait feels good to be kindBanimals are friendly by natureCthey have learned to do so for a long timeDthey want their owners to like them42It can be inferred from the last paragraph that _.ALinda always lets the animals eat togetherBKatie sometimes gets her food by stealingCToby is generous but Katie isntDKatie and Toby help each otherCFar from the land of Antarctica(南极洲), a huge shelf of ice meets the ocean. At the underside of the shelf there lives a small fish, the Antarctic cod.For forty years scientists have been curious about that fish. How does it live where most fish would freeze to death? It must have some secret. The Antarctic is not a comfortable place to work and research has been slow. Now it seems we have an answer.Research was begun by cutting holes in the ice and catching the fish. Scientists studied the fishs blood and measured its freezing point.The fish were taken from seawater that had a temperature of1.88and many tiny pieces of ice floating in it. The blood of the fish did not begin to freeze until its temperature was lowered to2.05. That small difference is enough for the fish to live at the freezing temperature of the icesalt mixture.The scientists next research job was clear: Find out what in the fishs blood kept it from freezing. Their search led to some really strange thing made up of a protein (蛋白质) never before seen in the blood of a fish. Whenitwas removed, the blood froze at seawater temperature. When it was put back, the blood again had its antifreeze quality and a lowered freezing point.X Kb 1.C o mStudy showed that it is an unusual kind of protein. It has many small sugar molecules (分子) held in special positions within each big protein molecule. Because of its sugar content, it is called aglycoprotein. So it has come to be called the antifreeze fish glycoprotein, or AFGP.43What is the text mainly about?AThe terrible conditions in the Antarctic.BA special fish living in freezing waters.CThe ice shelf aroundAntarctica.DProtection of the Antarctic cod.44Why can the Antarctic cod live at the freezing temperature?AThe seawater has a temperature of1.88.BIt loves to live in the icesalt mixture.CA special protein keeps it from freezing.DIts blood has a temperature lower than2.05.45What does the underlined word “it” in Paragraph 5 refer to?AA type of icesalt mixture.BA newly found proteinCFish blood.DSugar molecule.46What does“glyco”in the underlined word “glycoprotein” in the last paragraph mean?AsugarBiceCbloodDmoleculeDAnimal ConservationMany animal and plant species have become extinct and many more are in critical danger. Finding ways to protect the earths wildlife and conserve the natural world they inhabit (居住) is now more important than ever.DodosThe dodo is a classic example of how human caused damage to the earths biology. The flightless dodo was native to theIslandofMauritiusin theIndian Ocean. It lived off fruit fallen from the islands trees and lived unthreatened until humans arrived in 1505. The easily controlled bird became a source of food for sailors and was attacked by animals introduced to the island by humans such as pigs, monkeys and rats. The population of dodos rapidly decreased and last one was killed in 1681.RhinosThe rhino (犀牛) horn is a highly prized item for Asian medicine. This has led to the animal being hunted in its natural habitat. Once widespread in Africa andEurasia, most rhinos now live in protected natural parks and reserves. Their numbers have rapidly decreased in the last 50 years, and the animals remain under constant threat from poachers (偷猎者)The Giant PandasThe future of the World Wildlife Funds symbol is far from certain. As few as 1000 remain in the world.The Chinese government has set up 33 panda reserves to protect these beautiful animals and made poaching them punishable with 20 years in prison. However, The pandas distinct black and white patched coat fetches a high price on the black market and determined poachers still pose (造成) one of the most serious threats to the animals continued existence.WhalesThe International Whaling Commission is fighting to ensure the survival of the whale species. Despite the fact that onethird the worlds oceans have been declared whale sancturaies (保护区), 7 out of 13 whale species remain endangered. Hunted for their rich supply of oil, their numbers have decreased to just 300. Collisions with ships, poisonous pollution and being caught in fishing nets are other major causes of whale deaths.TigersThe last 100 years has seen a 95% reduction in the numbers of remning tigers to between 5000 and 7000 and theBali, Javan, and Caspian tiger are already extinct. TheSouth Chinatiger is precariously close to disappearing, with only 20 to 30 still alive. Like the rhino horn, tigers bones and organs are sought after for traditional Chinese medicines. These items are traded illegally along with tiger skins.47It implies that _.Athe dodo lacked the ability to protect itself from other animals.BSailors to theIslandofMauritiuslived mainly on the dodoCThe dodo used to be a strong animal that liked fightingDThe dodo, pigs, monkeys and rats were the natives to theIslandofMauritius48Which group of the following animals has already ceased to exist according to the text?AThe dodo, rhino and giant panda.BThe rhino, whale andSouth Chinatiger.CThe rhino, panda, whale and tiger.DThe dodo and theBali, Javan, and Caspian tiger.49_ can serve as a cure for certain diseases.AThe whales rich oilBThe pandas black and white patched coatCThe rhino horn and tigers bones and organsDThe dodos delicious meat50Which of the following statement is NOT true?AThe number ofSouth Chinatigers has reached crisis point.BMany animals are threatened with extinction as a result of human activity.CPeople hunt for the endangered animals for high profit.DThe whale is the representing mark for the World Wildlife Fund.51Which of the following is mentioned in all the descriptions of those wild animals?Athe way of their lifeBthe reason for their extinction or being in dangerCwhy they are huntedDpunishment for hunting wild animalsEThat summer an army of crickets(蟋蟀) started a war with my father. Dad didnt care for insects much more than Mamma, but he could tolerate a few living in the basement. Mamma was a city girl and she said a cricket was just too noisy.Then to prove her point she wouldnt go to bed. She drank coffee and smoked my fathers cigarettes and paced between the sofa and the TV. Next morning she threatened to pack upand leave, so Dad drove to the store and hurried back. He sprayed poison from a jug. When he was finished he told us that was the end of it.For a couple of weeks we went back to find dead crickets in the laundry. He suggested that wed all be better off to hide as many as we could from Mamma. I fed a few doezen to the cat who I didnt like because it scratched for no reason.However, soon live crickets started showing up in the kitchen and bathroom. Mamma was upset because she thought the dead crickets came back, but Dad said these were certainly enw ones. He fetched his jug of poison and sprayed all over until the whole house smelled of poison, and then he sprayed the besement again.A couple of weeks later, when both live and dead crickets kept turning up, Dad emptied the basement of junk. Then he burned a lot of old newspapers and magazines which he said the crickets had turned into nests.While we ate supper that evening, the wind lifted some flames onto the wood pile. The only gasoline was in the lawn mowers (割草机)fuel tank but that was enough to create an explosion big enough to reach the house. Once the roof caught, there wasnt much anyone could do.After the fire truck left, Mamma took the others to Aunt Gails. I helped Dad and Uncle Burt carry things