PETS

Text

In some ways, the human body is both like a furnace and like an engine. It must  produce heat as a furnace 26 . It must  produce motion and do 27 as an engine does. The nutrients (营养物) which 28 energy best are carbohydrates (碳水化合物) and fats. Protein can also be used as fuel. Minerals, vitamins, and water, 29 extremely valuable to the body, cannot be used as fuel.

If the body takes in more carbohydrates 30 are used for energy, the 31 is stored. Two storage places are the liver (肝) and muscles. There is a 32 , however, to the amount of carbohydrates they can 33 . When they are filled and they always 34 be for you to feel your best, excess carbohydrates are changed to fat and 35 around the body.

If the body does not take 36 a sufficient amount of food, it will use its stored fat for energy. If you 37 at all, the body would use up all the stored fats and 38 it would use its own protein in order to keep 39 as long as possible. Therefore, the 40 amount of food you  in 41 with your energy requirements. It is not necessary, 42 , for you to go 43 counting calories (卡路里l) and weighing

food. If a person is the 44 weight, it is safe to 45 that he is eating enough.

26. A.has B.needs C.doesD.is

27. A.job B.functionC.behaviour D.work

28. A.present B.offer C.supplyD.grant

29. A.as B.since C.whenD.while

30. A.than B.such C.whichD.that

31. A.access B.excess C.assessD.extra

32. A.restriction B.barrier C.limit D.terminal

33. A.fill B.hold C.involve D.press

34. A.might B.would C.could D.should

35 .A.extended B.distributed C.separated D.stretched

36. A.in B.up C.on D.down

37. A.won 'teat B.mustn 't eat C.did not eat D.have not eaten

38. A.when B.but C.BECauseD.then

39. A.alike B.alive C.asleep D.awake

40. A.general B.overall C.usualD.total

41. A.contact B.accordance C.contrast D.line

42. A.anyhow B.otherwise C.moreoverD.however

43. A.around B .away C .after D .against

44. A.exact B.same C.rightD.accurate

45. A.imagine B.remind C.recommend D.suppose

Section Ⅲ Reading Comprehension(40 minutes)

Part A

Directions:

Read the following three texts. Answer the questions on each text by choosing A, B, C or D. Mark your answers on the ANSWER SHEET by drawing a thick line across the corresponding letter in the brackets.

Text I

The automobile has many advantages. Above all, it offers people freedom to go wherever and whenever they want to go. The basic purpose of a motor vehicle is to get from point A to point B as cheaply, quickly, and safely as possible. However, to most people, cars are also personal fantasy machines that serve as symbols of power, success, speed, excitement, and adventure.

In addition, much of the world ' s economy is built on producing motor  supplying roads, services, and repairs for those vehicles. Half of the world' s paychecks are auto related. In the United States, one of every six dollars spent and one of every six non-farm jobs are connected to the automobile or related industries, such as oil, steel, rubber, plastics, automobile services, and highway construction.

In spite of their advantages, motor vehicles have many harmful effects on human lives and on air, water, land, and wildlife resources. The automobile may be the most destructive machine ever invented. Though we tend to deny it, riding in cars is one of the most dangerous things we do in our daily lives.

Since 1885, when Karl Benz built the first automobile, almost 18 million people have been killed by motor vehicles. Every year, cars and trucks worldwide kill an average of 250,000 people－as many as were killed in the atomic bomb attacks on Hiroshima and Nagasaki－and injure or permanently disable ten million more. Half of the world ' s people will be involved in an auto accident at some time during their lives.

Since the automobile was introduced, almost three million Americans have been killed on the highways－about twice the number of Americans killed on the battlefield in all U.S. wars. In addition to the tragic loss of life, these accidents cost American society about $60 billion annually in lost income and in insurance, administrative, and legal expenses.

Streets that used to be for people are now for cars. Pedestrians and people riding bicycles in the streets are subjected to noise, pollution, stress, and danger.

Motor vehicles are the largest source of air pollution, producing a haze of smog over the world ' s cities. In the United States, they produce at least 50% of the country's air pollution.

46. Cars represent people' s _________.

A.occupation B.identity C.life style D.fame

47. According to the passage,  number of people killed annually in traffic accidents

around the world is __________.

A.18 million B.250,000 C .half of the world ' s population D.60 million

48. A serious environmental problem resulting from automobiles is _________.

A .tragic loss of life B .traffic jams C .air pollution D .mental stress

49. It can be inferred from this passage that automobiles _________.

A .are an important part of the world ' s economy

B .are becoming less dangerous

C .will produce less air pollution in the future

D .are killing more people in recent years than in the past

50. The title that suits the passage best is _________.

A .Automobile and Economy B.Automobile and the E note to explain why you were absent from the night class.

Part B

67. For this part, you are  write a composition based on the following table of The

Brain and the Computer. Your composition should be no less than 150 words.

The Brain and the Computer

相关推荐：

2013年公共英语三级考试冲刺试题汇总

2013年公共英语五级考试填空练习题及答案汇总 

2013公共英语PETS四级完型填空练习题汇总

更多关注：报考指南  模拟试题   历年真题    短信提醒

（责任编辑：中大编辑）