翻译：

By making vehicles lighter in weight aluminum has greatly reduced the amount of fuel needed to move them, (Passage Two)

Weareconvinced____therighteousnessofourcause.

Paragraphs2and3explain________.

Scattered through the seas of the world are billions of tons of small plants and animals called plankton. Most of these plants and animals are too small for the human eye to see. They drift about lazily with the currents, providing a basic food for many larger animals. Plankton has been described as the equivalent of the grasses that grow on the dry land continents, and the comparison is an appropriate one. In potential food value however, plankton far outweighs that of the land grasses. One scientist has estimated that while grasses of the world produce about 49 billion tons of valuable carbohydrates each year. The sea’s plankton generates more than twice as much.

Despite its enormous food potential, little effort was made until recently to farm plankton as we farm grasses on land. Now marine scientists have at last begun to study this possibility, especially as the sea’s resources loom even more important as a means of feeding an expanding world population.

No one yet has seriously suggested that “planktonburgers” may soon become popular around the world. As a possible farmed supplementary food source, however, plankton is gaining considerable interest among marine scientists.

One type of plankton that seems to have great harvest possibilities is a tiny shrimplike creature called krill. Growing to two or three inches long, krill provide the major food for the giant blue whale, the largest animal ever to inhabit the Earth. Realizing that this whale may grow 100 feet and weigh 150 tons at maturity, it is not surprising that each one devours more than one ton of krill daily.

Krill swim about just below the surface in huge schools sometimes miles wide, mainly in the cold Antarctic. Because of their pink color, they often appear as a solid reddish mass when viewed from a ship or from the air. Krill are very high in food value. A pound of these crustaceans contains about 460 calories—about the same as shrimp or lobster, to which they are related.

If the krill can feed such huge creatures as whales, many scientists reason, they must certainly be contenders as new food source for humans.

1.Which of the following best portrays the organization of the passage?

A.The author presents the advantages and disadvantages of plankton as a food source.

B.The author quotes public opinion to support the argument for farming plankton.

C.The author classifies the different food sources according to amount of carbohydrate.

D.The author makes a general statement about plankton as a food source and then moves to a specific example.

2.According to the passage, why is plankton regarded to be more valuable than land grasses?

A.It is easier to cultivate.

B.It produces more carbohydrates.

C.It does not require soil.

D.It is more palatable.

3.Why does the author mention “planktonburgers”?

A.To describe the appearance of one type of plankton.

B.To illustrate how much plankton a whale consumes.

C.To suggest plankton as a possible food sources.

D.To compare the food values of beef and plankton.

4.What is mentioned as one conspicuous feature of krill?

A.They are the smallest marine animals.

B.They are pink in color.

C.They are similar in size to lobsters.

D.They have grass like bodies.

5.The author mentions all of the following as reasons why plankton could be considered a human food source except that it is ___.

A.high in food value.

B.in abundant supply in the oceans.

C.an appropriate food for other animals.

D.free of chemicals and pollutants.

Part II Vocabulary and Structure

Directions: In this part there are forty incomplete sentences. Each sentence is followed by four choices. Choose the one that best completes the sentence and then mark your answer on the Answer Sheet.

21. The teacher the students on a tour through the art museum.

A. made B. indicated C. forced D. took

22. Tom’s parents died when he was a child, so he was by his relatives.

A. grown up B. brought up C. raised D. fed up

23. Here is my card. Let’s keep in .

A. touch B. relation C. connection D. friendship

24. So far there is no proof people from other planets do exist.

A. which B. how C. what D. that

25. The newspapers reported yesterday several on the boundaries of these two countries.

A. incidents B. happenings C. events D. accidents

26. We’ve worked out the plan and now we must put it into .

A. fact B. reality C. practice D. deed

27. He didn’t and so he failed the examination.

A. work enough hard B. hard work enough C. hard enough work D. work hard enough

28. Not until Mr. Smith came to China what kind of country she is.

A. he knew B. he didn’t know C. did he know D. he couldn’t know

29. Scientists say it may be ten years this medicine was put to use.

A. since B. before C. after D. when

30. In some countries, is called “equality” does not really mean equal rights for all people.

A. that B. what C. which D. how

31. We didn’t know his telephone number, otherwise we him.

A. would telephone B. would have telephone

C. had telephoned D. must have telephoned

32. We’ve missed the last bus, I’m afraid we have no but to take a taxi.

A. way B. possibility C. choice D. selection

33. Luckily, most sheep the flood last month.

A. endured B. survived C. lived D. passed

34. My parents always let me have my own of living.

A. way B. method C. manner D. fashion

35. Like other language skills, reading requires practice.

A. the most of B. much of the C. most of the D. more of the

36. It is only through practice one will be able to swim skillfully.

A. what B. who C. that D. which

37. The brain is capable of ignoring pain message of to concentrate on other activities.

A. it allowed B. is it allowed C. allowed D. allowed it

38. Don’t worry, I have already them the decision.

A. informed; with B. informed; of C. informed; for D. informed; that

39. The child was sorry his mother when he arrived at the station.

A. to miss B. having missed C. missing D. to have missed

40. I wonder why he to discuss the problem at the meeting.

A. declined B. rejected C. refused D. delayed

41. You can hang up what you like on these walls.

A. bare B. empty C. blank D. vacant

42. According to a , the majority would rather have newspapers without a government than a government without newspapers.

A. election B. campaign C. poll D. vote

43. The population of the village has decreased 150 to 500.

A. in B. at C. by D. with

44. It seems that there is that I can’t do.

A. nothing B. anything C. everything D. none

45. They are often caring more about animals than human beings.

A. accused if B. accused with C. charged of D. charged for

46. a good beginning is made, the word is half done.

A. As soon as B. While C. As D. Once

47. George could not his foolish mistake.

A. account in B. count on C. count for D. account for

48. We came into this field late, so we must work hard to the lost time.

A. make up for B. make out C. keep up with D. put up with

49. The new law will came into on the day it is passed.

A. effect B. use C. service D. existence

50. We can separate the mixture into the pure chemical compounds it is composed.

A. in which B. of what C. of which D. from which

51. Mrs. Lincoln has that she is unable to get a job.

A. such small education B. so little education

C. a such little education D. a so small education

52. She can’t prevent her little boy shooting birds.

A. from; to B. on; at C. with; up D. from; at

53. Many countries are increasing their use of natural gas, wind and other forms of .

A. energy B. source C. power D. material

54. A darkened sky in the daytime is usually and indication that a storm is .

A. possible coming B. about to take place

C. close by D. expected to be severe

55. We all know that speak louder than words.

A. movements B. performance C. operations D. actions

56. , he could not cover the whole distance in fifteen minutes.

A. Fast as he can B. As he can ran fast

C. If he can ran fast D. Since he ran fast

57. Agricultural production in that country has increased in recent years.

A. vastly B. strikingly C. considerably D. extremely

58. Peter has planned to some money every month so that he can buy a used car next year.

A. set aside B. set up C. set in D. set along

59. Although I spoke to him many times, he never took any of what I said.

A. attention B. notice C. warning D. observation

60. They overcame all the difficulties and fulfilled the plan three months ahead of time, is something we had not expected.

A. that B. what C. it D. which