题目内容
One day when Isaac Newton was reading a book under an apple tree on the farm, an apple fell down and hit him on the head. For most people that would be the end of the story, but not for Newton. Why did the apple fall out of the tree? Does everything fall? What makes things fall? Can anything stop things from falling? Are the sun, moon, and stars falling? Why don’t they ever hit the ground?
So many questions. Newton spent many years answering these questions by thinking and doing experiments. He made up the law of gravity. According to this law everything pulls everything else to itself by a force called gravity. How strong that force is depends on how heavy the things are and how close together.
Newton’s law of gravity not only explained how things fall on earth, but now planets move around the sun and how moons move around planets. A friend of his, Edmund Halley, decided to try Newton’s theory on comets. People had been studying comets for hundreds of years without figuring them out, so he decided to study their reports and compare them to Newton’s theory.
Up till then people had thought that comets just came and went, and that nobody could know when or why. But Newton’s law of gravity gave rules that Halley could use to study the records of comets. He found some reports of a big bright comet that he was sure was the same one, coming back every 75 years. He predicted when it would come back next.
If anybody still didn’t believe Newton, then the appearance of Halley’s Comet just when Halley had predicted it using Newton’s ideas was enough to convince them. Halley’s Comet has come a few times since then, always right on schedule. You’ll be able to see it on its next trip near the sun and earth when you’re old enough to be a grandparent.
71.The passage starts with a story _____________.
A.because it was such a funny one
B.because Newton liked to eat apples
C.to show how much Newton liked reading
D/to show what started Newton’s discovering gravity
72.According to the author, Newton was especially different from others in that ____________.
A.he liked reading under apple trees
B.he liked to find out how things worked
C.he was very quiet and patient
D.he was so much interested in science
73.Newton’s law of gravity can tell us that _____________.
A.gravity has no relationship with the weight of things.\
B.how things fall on earth
C.it is not of help to the study of comets
D.it can explain everything in the world
74.The underlined word “ convince” in the last paragraph probably means “______________”
A. make… believe B. make… doubt
C. make… understand D. make… interested
75. Which of the following is TRUE about Edmund Halley?
A. He discovered a big bright comet.
B. He helped Newton to create his theory.
C. He predicted when the same comet would come back.
D. He studied the same comet for 75 years.
71---75 DBBAC
【解析】略
One day, Raul was miles away from the small ranch（牧场） house in a large valley. 36
seemed to be all right, yet he felt strange and somewhat uneasy. The wind had picked up, and angry, dark clouds 37 across the sky. He could smell the rain coming. And it did. 38 ,the lightning flashed through the clouds, nearly 39 Raul. The thunder（雷声） was so loud that he buried his 40 in his hands and rubbed his eyes. Then he heard it. Hoof beats（蹄声）.He 41 .There before him stood a tall, white 42 . An old man stared down at him from its back.
“Wh-wh-who are y-y-you?” asked Raul. “My name is Gray Cloud,” the old man answered 43 .“Come with me.”
Raul followed on his horse. A 44 feeling came over him. All 45 them the rain was pouring down, 46 not a drop fell on them. They seemed to be 47 back toward Raul’s home. Raul lost track of time. Then all at once he found 48 at the ranch gate. The old man turned his horse, 49 his hand, and smiled. Lightning flashed again. The old man and his horse were 50 .
Raul’s father ran out across the yard to 51 him. “we have been 52 sick about you. Are you okay? Hurry. Let’s get in out of the 53 .”
“Wait,” said Raul. “Have you ever heard of an old man called Gray Cloud?”
“Can’t say I … wait. I 54 my great-grandfather used to tell storied about a man called Gray Cloud. He died a long time ago. They say he was 55 by lightning during a terrible thunderstorm. Why do you ask?”
36. A. Something | B. Everything | C. Anything | D. Nothing |
37.A.dropped | B. fell | C. rolled | D. covered |
38.A.Suddenly | B. Strongly | C. Quickly | D. Hardly |
39.A.beating | B. blinding | C. burning | D. touching |
40.A.nose | B. hair | C. neck | D. head |
41.A.looked up | B. woke up | C. lay down | D. sat down |
42.A.tiger | B. horse | C. lion | D. elephant |
43.A.lazily | B. angrily | C. coldly | D. slowly |
44.A.natural | B. common | C. strange | D. bad |
45.A.around | B. beside | C. through | D. above |
46.A.yet | B. for | C. so | D. or |
47.A.walking | B. leading | C. heading | D. returning |
48.A.them | B. themselves | C. him | D. himself |
49.A.shook | B. waved | C. held | D. took |
50.A.gone | B. left | C. followed | D. lost |
51.A.see | B. meet | C. beat | D. ask |
52.A.waited | B. thought | C. worried | D. excited |
53.A.yard | B. wind | C. grass | D. rain |
54.A.believe | B. consider | C. doubt | D. forget |
55.A.defeated | B. caught | C. damaged | D. struck |
One day, Raul was miles away from the small ranch (牧场)house in a large valley. Everything seemed to be all right, yet he felt strange and somewhat uneasy. The wind had picked up, and angry, dark clouds 31 across the sky. He could smell the rain coming. And it did. 32 , the lightning flashed through the clouds, nearly 33 Raul. The thunder (雷声) was so loud that he buried his head in his hands and rubbed his eyes. Then he heard it — hoof beats (蹄声). He 34 . There before him stood a tall, white horse. An old man stared down at him from its back.
“Wh-wh-who are y-y-you?” asked Raul. “Oh, my name is Gray Cloud,” the old man answered 35 , “come with me.”
Raul followed on with his horse. A 36 feeling came over him. All 37 them the rain was pouring down, 38 not a drop fell on them. They seemed to be 39 back toward Raul’s home. Raul lost track of time. Then all at once, he found 40 at the ranch gate. The old man turned his horse, waved his hand, and smiled. Lightning flashed again. The old man and his horse were 41 .
Raul’s father ran out across the yard to 42 him. “We have been 43 about you. Are you okay? Hurry. Let’s get in out of the 44 .”
“Wait,” said Raul. “Have you ever heard of an old man called Gray Cloud?”
“Can’t say I … wait. I believe my great-grandfather used to tell stories about a man called Gray Cloud. He died a long time ago. They all say he was 45 by lightning during a terrible thunderstorm. Why do you ask?” At this, Raul was really more shocked than puzzled.
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