21. He tried to appear calm, but his trembling voice gave him ______.

　　A. up B. away

　　C. in D. off

　　22. Many people have exaggerated ______ computers are capable of.

　　A. that B. which

　　C. what D. how

　　23.He was accused ______ drunken driving and was facing up to six months in prison.

　　A. with B. against

　　C. of D. by

　　24. The kindhearted couple decide to ______ the child whose parents had been killed in an accident.

　　A. adopt B. adapt

　　C. adjust D. admit

　　25. I wouldn’t study abroad. For one thing, I can’t afford the expenses; ______ I don’t think I can get used to life there.

　　A. for other B. for the other

　　C. for others D. for another

　　II. 完形填空。从A、B、C、D四个选项中，选择一个正确答案，并在答题纸上将所选答案的字母涂黑。（本大题共15小题，每小题1分，共15分）

　　Fill in each blank in the passage with the most likely answer. (15 points)

　　Most living things undergo two types of biological change during their lifetime. One is

　　26 , an increase in the size or efficiency of an organism. The other is aging, which involves a 27 in size or efficiency.

　　Sings of aging 28 in most people between the age of 30 and 40. Heredity (遗传) determines most of the ways a person changes while aging, but environment also 29 a role. All the senses decline with age. For example, the eyes cannot adapt 30 darkness, and they require brighter light for reading. In women especially, bones lose calcium(钙) and become more likely to 31 .

　　Many people believe that with advancing age, an individual loses the 32 to learn, remember, and make decisions. But 33 disease or injury damages the brain, a healthy elderly person 34 remains physically and mentally active probably suffers 35 serious decline in mental capacity.

　　No one fully understands the aging process. Some scientists 36 that human aging will ever be controlled. Others believe that aging can be conquered. They note that several species of fish continue to grow until death 37 any signs of aging. Normal human cells can be kept 38 in a laboratory for only a limited time. However, abnormal(非正常的) cells, such as various cancer cells, can live for a long time. If scientists can determine how 39 cells survive, they may gain an insight 40 the process of cell aging.

　　26. A. development B. growth C. progress D. improvement

　　27. A. loss B. failure C. reduction D. cut

　　28. A. appear B. show C. open D. happen

　　29. A. takes B. makes C. does D. plays

　　30. A. at B. to C. in D. with

　　31. A. split B. crash C. break D. bend

　　32. A. responsibility B. ability C. necessity D. possibility

　　33. A. unless B. if C. besides D. except

　　34. A. who B. what C. whom D. which

　　35. A. neither B. nor C. none D. no

　　36. A. suspect B. distrust C. doubt D. misunderstand

　　37. A. as B. despite C. with D. without

　　38. A. alive B. lively C. live D. living

　　39. A. so B. such C. much D. many

　　40. A. through B. towards C. into D. in