C

Researchers in the United States are beginning a study to see if a weaker version of an

existing vaccine(疫苗 ) can protect people against the disease smallpox(天花).

　Smallpox is caused by the variola virus. It spreads from one person to another when an

infected person sneezes or coughs. People who become infected show signs of the disease within two weeks. They develop high body temperature, head and back aches and large raised area on the skin called sores. The　 disease can damage the brain and other body organs. Smallpox kills thirty percent of the people who get it . There is no treatment.

A vaccine medicine that prevents smallpox ended the threat of the disease around the world in 1977.

Now, American officials fear that terrorists may have small amounts of the virus. The National Institute of Allergy and Infection Diseases is supporting a study to see if a weakened smallpox vaccine can be effective against the disease.

Sharon Frey(FRI) is the leading researcher of the study. She says the United States has no more than 20 million unit of smallpox vaccine. That is not enough to protect 285 million Americans from the virus. Scientists say making the vaccine weaker is a quickly way to expand the amount of　 vaccine that already exists.

Doctor Frey and her team will test a weaker vaccine on more than 600 people at four medical centers in the United States.

One group of people will get the full-strength smallpox vaccine. The second group will get the vaccine that is one-fifth as strong as the full-strength vaccine. The researchers will examine the people to see how many develop a reaction that means the vaccine is protecting them from smallpox. This reaction is a small raised area on the arm where the vaccine is given.

Doctor Frey expects to know the results in two or three months. She says that any use of the weakened vaccine will be a temporary measure until new supplies of the smallpox vaccine are ready. That will take about one to two years.

Researchers in the United States are beginning a study to see if a weaker version of an existing vaccine can protect people against the disease smallpox.

69.　 What is the passage mainly talking about?

A. The after shock of 9.11 terrorist attacks.　　 B. The study of weaker smallpox vaccine

C. How to control smallpox　　　　　 D. The weaker smallpox vaccine will come into use in two or three months.

70.　 Which of the following is NOT the symptom(症状) when infected with the disease smallpox?

A. Coughs or sneezes　　　 　　　　　B. High body temperature

C. Head and back aches　　　　　　　 C. Large raised areas on the skin called sores

71.　 Which of the following is the reason why the National Institute of Allergy and Infectious Disease try to use the weakened smallpox vaccine.

A.　　 The existing smallpox vaccine costs too much .

B.　　　 The existing smallpox vaccine has been no longer quite effective.

C.　　　 They want to reduce the side effects that the existing smallpox brings to the infected people.

D.　　 American officials fear that terrorists may have small amounts of the virus and they use the weakened smallpox vaccine as a temporary measure until new supplies of the smallpox vaccine are ready.

B

　 I was in lodgings(寄宿处)now, on my own , but the other lodgers had streams of

visitors up and down the stairs past my door. None of these disturbed me except one girl who sang softly to herself an old Russian folk song as she ran up to the room above. It was a sound of extraordinary sweetness , musical ,soft, unselfconscious and happy. I began to listen out for it, jump up from my table, and throw open the door to catch a glimpse of her as she passed , but I was always too late. I asked the people upstairs who she was, and described the beautiful sounds she made. They became rather reserved and exchanged glances and hesitatingly admitted it might be Sally. I gathered she was someone special, not to be discussed in the ordinary way, and became vaguely curious to meet her. But the last thing I wanted at that stage was to get involved with anybody. I’d just come to the end of a rather painful friendship, and now I had work to do.

One day, I came face to face with a girl on the landing. It was certainly her; whoever

made that noise would look as she did. We stood and stared at each other too long for comfort. I broke the moment, and excusing myself, moved past her because it was too like the movies. I thought for some　 time of that long, silent stare, and laughed. She was tall and proud-looking, with a slight, round-shouldered look that made me breathless and I didn’t know why.

65.　 At his lodgings, the author_______.

A. rarely had visitors　　　　　 B. wished he had more visitors

C. was perpetually(永恒地)disturbed by other people’s visitors　 D. had too many visitors

66.　 Whenever the author heard the sound of the girl’s voice __________.

A. he sat listening to it　　　　　 B. he felt disturbed

C. he threw down his books　　　 D. he tried to see who it was

67.　 People he asked about the girl ___________.

A. told him all about her　　　 B. didn’t want to tell him much

C. didn’t tell him anything　　 D. were angry when he mentioned her

68.　 The author says that he was ___________.

A. very much in love with Sally　　　　 B. curiously attracted to Sally

C. annoyed at being disturbed by Sally　　 D. unwilling to be involved with Sally

A

MILLBURN,New Jersey---An 11-year-old boy who gave up television for a year in a bet (n.&v. say what you think will happen and then get　 money if you are right) with his mother says he’ll use some of the money to buy himself an astronaut’s suit. The bet ended at 9:01 on Monday morning, but Benjamin Bareaux waited until his mother , Roslyn, handed him five 100-dollar bills in front of a gathering of newspapermen in the afternoon before switching on the TV. During the past year, he has filled his time with reading and his grades(分数)have improved from “satisfactory” to “very good”.　　 (CHINA DAILY, Wednesday, March4, 1987)

61.　 Who lost a bet to whom?

A. The boy’s mother to his father　　　　　　 B. Benjamin’s father to Roslyn

C. Benjamin to his mother　　　　　　　　 D. Roslyn to Benjamin

62.　 　For how long had the boy kept himself from turning on the TV?

A. From Monday morning till afternoon　　　 B. For one　 year and several hours

C. For one year and a day　　　　　　 　　　　D. For one year

63.　 Why did the mother hand the bills to the boy?

A. Because his grades had improved　　　　　 B. Because she had won some money

C. Because he wanted to buy an astronaut’s suit　　 D. Because she had given him her promise

64.　 The mother obviously believed that _____________.

A. children shouldn’t watch TV too much　　　　 B. children should have their own money

C. children should be regarded as their parents’ equals　 D. children’s interest in space should be encouraged

第二节 完形填空(共20小题，每小题1.5分；满分30分)

It is interesting how NASA(美国航空航天管理局) chose their astronauts for landing them on the moon. They chose men ___4_1______ age of twenty and thirty-five. There were about fifty of them. Many were ___42____air pilots. ___43_____were scientists with two or three degrees. NASA telephoned each man they were going to choose；told him the plans and the　 ____44___they might get in. They then asked him if he was willing to be trained as an astronaut. “How could any man ____45______ such an exciting job?” One of them said, “Dangerous? Of course. It’s dangerous ____46________ most exciting.” The health and physical condition of ___47_____was , of course, very necessary. ___48_____ those in very good health and physical condition were chosen.

While being trained to be astronauts, they went through many____49_____. They studied the star and the moon, and they also studied geology, the science of rocks. This was necessary ____50_____astronauts would have to look for rocks on the moon. They would try to find rocks which might help to tell the ___51______ of the moon. They were all ___52______to fly in helicopters. These helicopters landed ___53______ down to give them some experience of the way the spaceship would ___54_____ land on the moon. They were also taught the _____55_____ facts about the conditions in space. They learnt all the technical details of the spaceships and rockets. They visited the scientists and engineers who ____56_____ them. They visited the factories where the spaceships and rocks were ____57_____. They learnt how every ____58______ of a spaceship and its instruments work They also learnt every detail of ground control_____59_____.

In a word, to be chosen as an astronaut, one must be in good health, ___60_____in science and good at piloting.

41.　 A. at　　　　　　　 B. between　　　　 C. of　　　　　　 D. on

42.　 A. experienced　　　 B. old　　　　　　 C. trained　　　　 D. young

43.　 A. None　　　　　 B. Few　　　　　　 C. Others　　　　　 D. They

44.　 A. dangers　　　　 B. sadness　　　　　 C. hardship　　　　 D. troubles

45.　 A. accept　　　　　 B. receive　　　　　 C. offer　　　　　　 D. refuse

46.　 A. but　　　　　　 B. if　　　　　　　 C. though　　　　　 D. however

47.　 A.　 the scientists　 　B. men　　　　　　 C. pilots　　　　　　 D. young people

48.　 A.　 As　　　　　　 B. Only　　　　　　 C. If　　　　　　　 D. Or

49.　 A. jobs　　　　　　 B. places　　　　　 C. courses　　　　　 D. ways

50.　 A. for　　　　　　 B. because　　　　　 C. since　　　 　　　D. so that

51.　 A. story　　　　　 B. background　　　　 C. age　　　　　　 D. name

52.　 A. shown　　　　　 B. trained　　　　　 C. told　　　　　　 D. let

53.　 A. straight　　　　 B. straightly　　　　　 C. indirectly　　　　 D. directly

54.　 A. possibly　　　　 B. likely　　　　　　 C. actually　　　　　 D. really

55.　 A. not known　　　 B. well-known　　　　 C. unknown　　　　 D. known

56.　 A. drew　　　　　 B. produced　　　　　 C. designed　　　　 D. made

57.　 A. repaired　　　　 B. built　　　　　　 C. developed　　　　 D. fixed

58.　 A. part　　　　　　 B. movement　　　　 C. machine　　　　 D. body

59.　 A. house　　　　　 B. stop　　　　　　　 C. system　　　　　 D. station

60.　 A. well-done　　　 B. well-fed　　　　　 C. well-kept　　　　 D. well-informed

40. A car had a head-on ______ with a truck on the highway yesterday, killing 2 and injuring 3.

　　 A. contest　　　　　　 B. collision 　　　　C.　 conflict　　　　 D. contrary

39. Mr. White is now in Beijing and runs a company ____________in Zhongguancun together with some Chinese friends.

　　 A. to base　　　　　　 B. basing　　　　 C. to be based　　　　 D. based

38.__________ the poem for a second time, the meaning will become cleaner to you.

A. While reading　　　 B. If reading　　　 C. When you read　　　 D. To read

37. That year his total income, with his reward_________, _________1500 dollars.

A. added up to ; added　　　　　　　　　 B. added; added to

C. added to; added up to　　　 　　　　　　D. adds; adds up to

36.----Are you all from the United States?

　 ------_____________ American.

A. No, no one of us is　　　　　　 B. No, all of us are not

C. Yes, either of us is　　　　　　 D. Yes, every of us is