Unit 3 Life in the futureⅢ. 单项选择，从A、B、C、D四个选项中，选择最佳答案完成句子1. organizers repeatedly appealing to smokers to allow Expo to be smoke-freeevent, smokers are in no mood to cooperate.A. Despite; aB. In spite; aC. Although; aD. In spite of; /2. He is going to the story where he left over yesterday.A. take upB. take offC. take awayD. take in3. We simply cannot tolerate in exam.A. cheatingB. to cheatC. having cheatedD. cheated4. The female bird the male’s bright colours.A. lacks inB. lacks ofC. lacksD. is lacking5. People are not allowed to read others’letters without permission.A. privateB. publicC. individualD. own6. She caught his eye .A. in an instantB. for an instantC. in a minuteD. in a moment7. The twins were separated at birth and brought up in entirely different .A. atmosphereB. environmentC. surroundingD. conditions8. Those who to vote must come to the meeting.A. demandB. requestC. requireD. desire9. New technology is being almost every industrial process.A. applied forB. adjusted toC. applied toD. adjusted in10. The parents saw off their son until the plane .A. in sightB. out of sightC. within sightD. lost sight11. He thought he had looked at the problem from every .A. wayB. meansC. sidesD. aspect12.About 500 people have been temporarily housed in 103 tents in the campus of a middle schoolon a hill on the north side of Zhouqu.A. being situatedB. situatedC. situatingD. to be situated13. The competition, with the support of the World Wide Fund for Nature(WWF), willnarrow down the list of finalists to 12 next month.A. runningB. to runC. having runningD. run14. Among those by Foreign Policy and others as Gates’ potential successor are Secretaryof State Hillary Rodham Clinton.A. namedB. to be namedC. being namedD. to name15. In order not to be disturbed, I spent three hours in my study.A. lockingB. lockedC. being lockedD. to lockⅣ. 根据所给句子完成画线部分1. As I was worried about the journey, I was unsettled for the first few days.________________________, I was unsettled for the first few days.2. If he were given enough time, he would have finished the test paper.____________________________, he would have finished the test paper.3. Because she is worried about the missing child, she finds it difficult to go to school these days. __________________________________, she finds it difficult to go to school these days.4. I was taking up my prize which was won last year.I was taking up my prize ______________________________.5. Tomorrow you will be ready for some of the visits which are organized by the company. Tomorrow you will be ready for some of the visits __________________________________. Ⅴ. 根据汉语提示及重点词语将下列句子译成英语1. 复印这些文件用了一个早上的时间。

(take up)____________________________________________________________________________ 2. 他擅长于自己的工作，但有时似乎缺乏信心。

(lack)____________________________________________________________________________ 3. 简一进来就大哭起来。

(the instant)____________________________________________________________________________ 4. 咽下食物之前要好好咀嚼。

(swallow)____________________________________________________________________________ 5. 他们泼水扑灭了大火。

(by doing sth)____________________________________________________________________________Ⅵ. 完形填空Some people are calling it the greatest medical breakthrough so far this century. Surgeons in Spain have successfull y carried out the world’s first organ transplant using new stem cell(干细胞) technology.But 1 are stem cells? Most cells in our bodies are designed to 2 specific purposes —for example, a liver cell develops to work in the liver and cannot become a heart cell.But stem cells are 3 . They are very young, and in the 4 scientists can grow them into different types of cell.Claudia Castillo needed a new windpipe(气管) after contracting tuberculosis. Scientists from the University of Bristol in the UK took a donor windpipe, or trachea, from someone who had 5 died.They used strong chemicals to remove the donor’s cells, leaving a tissue scaffold. This was repopulated(重新构成)with cells from Ms Castillo’s windpipe and nose, and stem cells from her bone marrow. After four 6 the cells had grown sufficiently for the trachea to be transplanted into Ms Castillo.Currently, transplant patients have to take drugs for 7 of their lives to prevent their bodies rejecting the new 8 . These 9 can have bad side-effects, and do not always prevent rejection.But by using Ms Castillo’s own cells,10 were able to trick her body into 11 the new trachea was her own organ. Five months on, Claudia Castillo is in 12 health.This ground-breaking procedure could be used in other transplant operations in the future. Scientists 13 believe stem cells might be used to treat Parkinson’s disease, Alzheimer’s disease, heart disease, stroke, arthritis, diabetes, burns and spinal cord damage.14 , stem cell research is extremely controversial. The most effective stem cells do not come from adults but from embryos created in laboratories and which are just a few days old. Many people have religious or ethical objections to growing embryos, 15 they can be used to cure diseases.1. A. what B. who C. where D. why2. A. give B. offer C. take D. serve3. A. similar B. different C. the same D. new4. A. office B. laboratory C. hospital D. university5. A. already B. almost C. recently D. slowly6. A. days B. hours C. months D. years7. A. others B. the other C. the rest D. parts8. A. cells B. parts C. life D. organs9. A. medicine B. drugs C. operations D. bodies10. A. scientists B. doctorsC. professorsD. transplant patients11. A. knowing B. thinking C. realizing D. doubting12. A. poor B. bad C. perfect D. mental13. A. also B. never C. still D. ever14. A. Therefore B. Instead C. Besides D. However15. A. because B. as C. even if D. ifⅦ. 阅读理解，根据短文内容选择最佳答案AMany years ago, scientists discovered that amino acids, a foundational building block of life forms on earth, also exist in space. One of the primary sources of this knowledge lies in numerous tests run on meteorites(陨星) that have landed on earth. Small traces of amino acids have been found, again and again, from a countless number of meteorites. An American scientist and researcher, Sandra Pizzarello, has recently discovered that the amino acids found on earth share the same simple structure as amino acids found in outer space. This discovery offers proof that extraterrestrial(来自地球外的) life could, quite realistically, resemble life on earth.Many years ago, Pizzarello and a colleague conducted research on amino acids extracted(提取)from a meteorite that landed in Australia in 1969. As they analyzed the material, they discovered a greater number of acids indicating a tendency towards “left-handedness”over “right-handedness”.Further evidence to support these findings came from the analysis of pristine meteorites found in Antarctica. The frozen conditions of Antarctica ensure that meteorites are preserved and remain unaffected by the earth. These buried meteorites are usually discovered due to constant motion of the ice, which eventually brings the objects back to the surface.According to Pizzarello, this discovery is important because it shows that a key molecular (分子的)trait(特征)that defines life here on earth appears to have had the same effect on the cosmic lineage(世系) of life in outer space. In other words, the fictional images of aliens from movies and popular television shows such as Star Trek might be more realistic than we used to think.Is there life on other planets? Do aliens resemble human beings? Maybe one day, with continued scientific research and advancement in space travel and research, we will find out.1. What are amino acids?A. A building material.B. A chemical.C. A life form.D. A building block of life forms.2. Which of the following is true according to the passage?A. Our knowledge of amino acids from outer space has been gained from the tests onmeteorites that landed on earth.B. The meteorites found in Antarctica had reamained in good condition largely because no onelives there.C. The producers of movies about aliens must have done research on amino acids frommeteorites.D. The author doesn’t believe that aliens might exist in outer space.3. What has Sandra Pizzarello discovered recently?A. Extraterrestrial life must resemble life on earth.B. The amino acids found on earth share the same simple structure as amino acids found inouter space.C. A lot of acids indicate a tendency towards “right-handedness” over “left-handedness”.D. A key molecular trait has the same effect on the cosmic lineage of life in outer space.4. What has made the discovery of the buried meteorites in Antarctica possible?A. Continued scientific research.B. Advancement in space travel and research.C. The constant motion of the ice eventually brings the objects back to the surface.D. The discovery of amino acids.5. What is probably the best title for the passage?A. Amino Acids Offer Proof of Alien Life in Outer SpaceB. There Is Life in Other PlanetsC. Extraterrestrial Life Resembles Life on EarthD. Small Traces of Amino Acids Have Been FoundBOn my planet, nobody needs to die. It was only ten years ago that scientists here on Xeron developed technology to bring the dead back to life. That does sound strange, doesn’t it? But of course these dead “people” are not made of flesh and blood but celluloid(假象牙) and computer chips. The scientists found that because our population was declining people were becoming longly in their small settlements. So they set to work to solve the problem. After twenty years of dedication they succeeded. They discovered that “people” could be copied from old home movies. The “person” is combined with computer records about him or her to create a virtual “relative”. The family can chat and live with him or her. Once a family takes up the offer of a constant companion, their upkeep is very cheap. He or she does not need food or clothes, is never ill and does not need haircuts or new shoes.This project has been such a success that the scientists are now working on ways to bring back “people” who died long ago so that they can take on new roles. In 2030 they hope to be able to reproduce some of the great people of the 20th century: perhaps even Karl Marx, Albert Einstein, or Chairman Mao.So if you are lonely, find an old home movies and choose the relative you would like to bring back to life. Then call Xeron 7257 and one of our representatives will call you back. Prices are very reasonable. Call today or write for our brochure for full details at Xeron People Regeneration Ltd, Bonjon 5675, Xeron. Please mark your envelope BROCHURE or quick reply!6. How are these dead “people” different from us?A. They are made of flesh and blood.B. They are made of celluloid and computer chips.C. They are made of flesh and celluloid.D. They are made of blood and computer chips.7. What is NOT true about the copied “people” ?A. Their upkeep is very expensive.B. They don’t need food or clothes.C. They are never sick.D. They don’t need haircuts or new shoes.8. What is the reason for scientists to bring great minds back to life?A. So that they can take now roles.B. Because scientists want to show off their talents.C. Because people need them.D. So that they can make the same contribution to society.9. When you want a relative to be brought back to life, which of the following orders is right?a. call Xeron 7257b. find an old home moviec. choose the relative you’d like to bring back to lifed. one of the representatives calls you backe. a relative is brought back to lifeA. a-b-c-d-eB. a-c-b-d-eC. b-c-a-d-eD. b-a-c-d-e10. What do you think is the best title for the passage?A. Humans Can Live LongB. Life Can Be Extended Indefinitely on Xeron!C. A Great DiscoveryD. Great People Will Never DieⅧ. 书面表达根据BBC新闻，科学家已经在英国制造出第一个人兽混合胚胎，人们对此议论纷纷。