1、5.3 课时作业.选词填空1May I ask you to _ me to the police station?2I couldnt _ the temptation of chocolates when travelling in Germany because they were too delicious.3The doctors tried every possible means to _ the serious illness of the patient.4What we learn at the university is _ to us in the future.5At
2、 the age of five he showed _ talent as a musician.6Water and salt are _ into our blood stream.7He tried to run away from _ issues by pretending to be ill.8Fresh air is _ to our health.9This room is _ with the one we stayed in last year.10I found it almost _ that no one noticed these errors.答案：1.acco
3、mpany2.resist3.cure4.beneficial5exceptional6.absorbed7.controversial8fundamental9.identical10.incredible.用合适的介、副词填空1The people on the island rely _ a spring for their water.2The bridge broke _ in the earthquake last year.3The police suspected her _murder.4The teachers must treat the students _ adult
4、s.5The doctor devoted himself to cure the patient _ cancer.6Who took my notebook _ mistake? Please give it back to me.7Fresh air and good food are beneficial _ the health.8The main reasons why the machine broke down are _ follows.9The two words are identical _ meaning.10The young man was charged wit
5、h robbery _ violence.答案：1.on2.down3.of4.as5.of6.by7.to8as9.in10.with.阅读理解AWith only about 1,000 pandas left in the world, China is desperately(拼命地) trying to clone the animal and save the endangered species. Thats a move similar to what a Texas A&M University researcher has been undertaking(从事，进行) f
6、or the past five years in a project called “Noahs Ark”Dr. Duane Kraemer, a professor in Texas A& Ms College of Veterinary Medicine and a pioneer in embryo(胚胎) transfer work and related procedures(程序), says he salutes(赞扬) the Chinese effort and “I wish them all the best success possible. Its a worthw
7、hile project, certainly not an easy one, and its very much like what were attempting here at Texas A&Mto save animals from extinction.”Noahs Ark is aimed at collecting eggs, embryos, semen(精子) and DNA of endangered animals and storing them in liquid nitrogen(氮). If certain species should become exti
8、nct, Kraemer says there would be enough of the basic building blocks to reintroduce the species in the future.It is estimated that as many as 2,000 species of mammals, birds and reptiles(爬行动物) will become extinct(灭绝) over the next 100 years. The panda, native only to China, is in danger of becoming
9、extinct in the next 25 years.This week, Chinese scientists said they grew an embryo by introducing cells from a dead female panda into the egg cells of a Japanese white rabbit. They are now trying to implant the embryo into a host animal.The entire procedure could take from three to five years to co
10、mplete.“The nuclear transfer of one species to another is not easy, and the lack of available panda eggs could be a major problem，” Kraemer believes.“They will probably have to do several hundred transfers to result in one pregnancy. It takes a long time and its difficult, but this could be groundbr
11、eaking science if it works. They are certainly not putting any live pandas at risk, so it is worth the effort，” adds Kraemer, who is one of the leaders of the Missyplicity Project at Texas A&M，the first ever attempt at cloning a dog.“They are trying to do something thats never been done，and this is
12、very similar to our work in Noahs Ark. Were both trying to save animals that face extinction. I certainly applaud their effort and theres a lot we can learn from what they are attempting to do. Its a research that is very much needed. ”1The aim of “Noahs Ark” project is to _.A. implant embryo into a
13、 host animalB. salute the Chinese efforts in saving pandasC. save endangered animals from extinctionD. introduce cells from a dead female panda into the egg cells of a Japanese white rabbit答案与解析：C细节题。从第二段中的最后一句话可知选C。2How long will the Chinese panda cloning project take according to the passage?A. 1
14、year. B. 3 to 5 years.C. 2 years. D. 25 years.答案与解析：B细节题。通过The entire procedure could take from three to five years to complete.可知。3The word “groundbreaking”(Paragraph 7) can be interpreted as _.A. essentially new B. pioneeringC. evolutionary D. epoch making答案与解析：B推理判断题。从第七段中Kraemer的描述可知这项技术是“新的，创新的
15、”。所以应选B项：pioneering“先锋的，领先的”。groundbreaking“创新的，开拓的”。4What could be the major problem in cloning pandas according to Professor Kraemer?A. Lack of available panda eggs.B. Lack of host animals.C. Lack of qualified researchers.D. Lack of funds.答案与解析：A细节题。根据第七段的第一句话可知。BOn June 5,1981 the Centers for Dis
16、ease Control in Atlanta U. S. announced the presence of a rare，infectious disease in five American homosexuals (同性恋). Soon doctors were finding similar cases all over the country and the world. The AIDS epidemic(流行病) had officially begun. By 1983 it was clear that AIDS had spread around the world. M
17、ore than twenty years later, AIDS has left twentysix million dead and another forty million infected. AIDS has become the worst medical disaster ever experienced by mankind.Hundreds of young people between the ages of 20 and 45 died each week during the early years of the U. S. AIDS. More than 600,0
18、00 cases of AIDS have been reported since 1981 in the United States, and it is estimated that there may be as many as 900, 000 Americans infected with HIV.Though the rate of HIV infections continues to increase in the United States, the number of AIDS cases has fallen sharply since 1996, when antire
19、troviral drugs came into the market. Unfortunately，the AIDS epidemic continues today in Africa and much of Asia，where antiretroviral treatment is not available and health care is far from enough. AIDS is the fourth leading cause of death worldwide，and the No. 1 cause of death is due to infectious di
20、sease.HIV, the virus that causes AIDS, was first separated in 1983 by a team at the Pasteur Institute in Paris. That discovery made it possible to develop a test for AIDS and trace back to victims who may have died before doctors were aware of the disease.However，scientists still dont know exactly h
21、ow and where AIDS started. Finding the source of AIDS could be important in developing a vaccine(疫苗)and be important in mapping the future course of the epidemic. 5It can be inferred from the passage that _.A. antiretroviral drugs will be obtained easily all over the worldB. the best way to stop AID
22、S is to develop a vaccineC. scientists will soon find a way to cure AIDSD. there will be fewer AIDS cases in the world in the future答案与解析：B由常识得出，种植疫苗是阻止流行病的最佳途径。6Which areas are the most worrying places where AIDS spreads quickly today?A. Africa. B. Asia.C. The United States. D. France.答案与解析：A当今非洲艾滋
23、病流行最严重，由第三段the AIDS epidemic continues today in Africa and much of Asia得知。7The number of AIDS cases has greatly decreased in the United States due to the fact _.A. a team at the Pasteur Institute in Paris succeeded in separating HIVB. some effective medicine has been inventedC. scientists understand
24、 AIDS better and betterD. the rate of HIV infections continues to rise in the United States答案与解析：B美国投入市场的这种药阻止了艾滋病的发病率。由第三段.when antiretroviral drugs came into the market得出。8Whats the importance of the discovery of the source of AIDS?A. It can be used to develop a test for AIDS.B. It can stop HIV fo
25、rming AIDS.C. It can reduce the rate of death caused by AIDS.D. It can help develop a drug to prevent AIDS.答案与解析：D发现病原有助于开发疫苗。由最后一段Finding the source of AIDS could be important in developing a vaccine.得出。9When did the name of AIDS come into being?A. In 1983. B. In 1981.C. In 1996. D. In 1994.答案与解析：B
26、1981年首次发现这种病后，很快得到政府确认，“AIDS”由此产生。由第一段.The AIDS epidemic had officially begun.得出。.短文改错The longdesired winter vacation arrived in the end. As soon as the bell rang, announced the end of the class, we couldnt wait to rush out of the classroom. Half an hour late, my good friend Li Ming and I were on th
27、e way back home. Such crowded was the bus we took that they had to stand. Thinking of the coming Spring Festival and the fourweeks stay with parents, we both felt exciting. All of a sudden, I saw a man picking an old ladys pocket. With help of Li Ming, I caught the thief and force him to give back t
28、he purse to the lady. The thief was take away by the police. Praised by other passengers, and we felt proud of what we had done.答案：The longdesired winter vacation arrived in the end. As soon as the bell rang, the end of the class, we couldnt wait to rush out of the classroom. Half an hour ， my good
29、friend Li Ming and I were on the way back home. crowded was the bus we took that had to stand. Thinking of the coming Spring Festival and the stay with parents, we both felt . All of a sudden, I saw a man picking an old ladys pocket. With help of Li Ming, I caught the thief and him to give back the purse to the lady. The thief was away by the police. Praised by other passengers, we felt proud of what we had done.