76. The huge mirror would

A. stand 60 miles in height (高度).

B. be 60 miles from side to side.

C. cover 60 miles of the earth.

D. be 60 miles above the earth.

75. What is the writer trying to tell us with this story?

A. One should think and decide for oneself.

B. One should ask friends for help and advice.

C. Smoking is bad for one's health.

D. Chocolate is bad for one's health.

(C)

Scientists would like to place a huge mirror in space above the earth. It might be sixty miles wide. It would be used to catch the rays(光线) of the sun. It would direct the sun's rays upon the earth as a child might do to make sunlight dance on the wall with a hand mirror.

Why do they want to do this? The sun's rays could be helpful in many ways. They could light up cities by night. The warm rays could stop frosts (霜冻) which might come at night and hurt fruit crops. They could melt (融化) dangerous icebergs in the ocean. Perhaps they could change cloud movements and bring rain where it is needed.

74. What kind of person would you say Joe was?

A. He was not the kind of person who used his head much.

B. He had no will power to carry out a decision(决定).

C. He was not happy to let others make decisions for him.

D. He was always changing his mind and was never satisfied.

73. In the end Joe was unhappy about his friendship with Fred because

A. Fred's advice had brought him no good.

B. he never liked being told what to do.

C. he in fact had never really trusted Fred.

D. Fred had given him the wrong advice on purpose(故意).

72. The following sentences tell what happened to Joe. Which is the right order of the events (事实)?

a. He did not smoke; he ate chocolate; he was fat; he was unhappy.

b. He smoked; he did not eat chocolate; he was thin; he was unhappy.

c. He smoked; he did not eat chocolate; he was not fat; he was happy.

A. a. b. c.　　　　　　　　 B. c. b. a.

C. b. a. c.　　　　　　　　 D. c. a. b.

71. When Joe became thin the first time it was because

A. he smoked too much.　　 B. he worried too much.

C. he stopped smoking.　　 D. he ate too little.

70. A"property"in Australia is a

A. house.　　　　　　　　　 B.school.

C.farm.　　　　　　　　　　 D.radio.

(B)

Friends

Joe Bloggs always had a cigarette(香烟) on his lips. He smoked while he read, while he looked at the television, and while he drank a cup of coffee. He smoked forty cigarettes a day, but he was happy.

Joe's friend, Fred Brown, said to him,"It is very bad to smoke." When Joe heard this,he started to worry and became thin. So he did not buy any more cigarettes. He became so thin he went to Fred for help.

Fred said, "You must eat more." So Joe did not smoke, but he ate chocolate (巧克力), and he became very fat. Again he went to Fred for help.

Fred said, "You must not eat chocolate." So Joe stopped eating chocolate,but he went back to smoking cigarettes. He became thin again but he was not happy,because he still smoked.

Sometimes Joe Bloggs wished Fred Brown was not his friend!

69. When children are having a lesson,they can hear their teacher

A. but their teacher cannot hear them.

B. and their teacher can hear them too.

C. but cannot hear their schoolmates.

D. and see him or her at the same time.

68. Teachers in "The Centre "of Australia teach

A. not in a classroom but at the homes of the students.

B. by speaking only and not showing anything in writing.

C. without using any textbooks or pictures.

D. without knowing whether the students are attending.

67. In order to send their children to school,parents in"The Centre"of Australia must have

A. a property.　　　　　　 B. a car.

C. a school room at home.　 D. a special radio.