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?

Newton spent many years answering these questions by thinking and doing experiments．He made up the law of gravity（引力定律）．According to this law everything pulls everything else to itself by a force（力）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 how planets move around the sun and how moons move around planets．A friend of his，Edmund Halley，decided to try Newton's theory（理论）on comets（彗星）．People had been studying comets for hundreds of years but failed to understand them，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（预测）when it would come back next．

Halley's prediction came true．Tile comet appeared at the right time as he predicted using Newton's ideas．This was enough to convince anybody who still didn't believe Newton．Halley's Comet has come a few times since then，always right on time．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．

1．The passage starts with a story to show _______．

A．it was such a funny one

B．Newton liked to eat apples

C．how much Newton liked reading

D．what led to Newton's discovery of gravity

2．How strong gravity is depends on _______ of the things according the Newton’s theory．

A．color and distance（距离）                      B．weight and distance

C．size and weight                                          D．size and color

3．According to the writer，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

4．The underlined word convince in the last paragraph probably means “make people _______”．

A．believe                 B．doubt                   C．understand             D．relax

5．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 comet for 75 years

完形填空

阅读下面短文，从A、B、C、D中选出能填入文中相应空白处的最佳答案

　　Many people could not forget the beautiful dance during the CCTV Spring Festival Gala (晚会). The dance was performed (表演) by some disabled boys and girls. They can't hear or speak. But their performance is remembered by many people. The lead dancer of the dance is Tai Lihua.

　　Tai Lihua was born 1 . When she was two years old, she 2 her hearing because of a fever. Not long after that, she became mute (哑的), too. From then on, her world is 3 . But she didn't know this at first. At five years old, when her schoolmates in kindergarten played a game about 4 , she discovered that she was different from the others. She was very 5 about it. Her father went to many places to look for best treatments for her illness. But nothing 6 When she was seven years old, she went to a school for deaf and mute children. In that school, she did well in her 7 . Her teacher said she used her mind more than the others and was good at expressing (表达) her feelings through 8 . She also began to 9 dance and dance became her favorite. She thought she could use dance to express what she thought about life. She worked hard at it and her efforts (努力) made her a very good dancer.

　　Besides performing in China, Tai Lihua has also been to some other 10 and many foreigners like her style. She now lives a happy life with her family.

Aunt Polly had told Tom to paint the whole fence (栅栏)in front of the house. He thought of the other boys out for the day enjoying themselves and he felt very unhappy. Then he had an idea! He picked up the brush and started painting slowly and carefully. Soon, his friend Ben Rogers appeared, eating an apple. Tom pretended (假装) not to see him.
“Tom!” Ben said. “Why are you working?”
“Oh, it’s you, Ben,”Tom said, “I didn’t notice you.”
“I’m gong for a swim,” Ben said, “but you don’t’ want to come. You want to work, don’t you? It’s much nicer!” Ben laughed loudly. Tom looked seriously at Ben and said. “What is work? What do you call work?”
“Isn’t that work?” Ben asked.
“Well, no. Does a boy get the opportunity to paint a fence every day? You’ve never painted a fence, have you? Auntie says I have to do it with great care!’
“Pleas, Tom. Let me do a little,” said Ben.
“No, Ben. If you do, you’ll do it wrong. You can’t paint very well. If it was the back fence wouldn’t mind, but it isn’t.”
“I won’t do it wrong. I’ll be really careful. I’ll give you my apple.” Tom gave him the brush and paint with a sad face, but in his heart he was glad, His trick had worked.
After Ben got tired and left, other boys came along and Tom said the same things to them. Soon, the whole fence was painted white, but not by Tom. He felt very clever because he had discovered something important about the way people are. People only want what they can’t have or want to do what they shouldn’t do.
【小题1】Which of the following has the closest meaning to the underlined word “opportunity” on this passage?

Aunt Polly had told Tom to paint the whole fence (栅栏)in front of the house. He thought of the other boys out for the day enjoying themselves and he felt very unhappy. Then he had an idea! He picked up the brush and started painting slowly and carefully. Soon, his friend Ben Rogers appeared, eating an apple. Tom pretended (假装) not to see him.

“Tom!” Ben said. “Why are you working?”

“Oh, it’s you, Ben,”Tom said, “I didn’t notice you.”

“I’m gong for a swim,” Ben said, “but you don’t’ want to come. You want to work, don’t you? It’s much nicer!” Ben laughed loudly. Tom looked seriously at Ben and said. “What is work? What do you call work?”

“Isn’t that work?” Ben asked.

“Well, no. Does a boy get the opportunity to paint a fence every day? You’ve never painted a fence, have you? Auntie says I have to do it with great care!’

“Pleas, Tom. Let me do a little,” said Ben.

“No, Ben. If you do, you’ll do it wrong. You can’t paint very well. If it was the back fence wouldn’t mind, but it isn’t.”

“I won’t do it wrong. I’ll be really careful. I’ll give you my apple.” Tom gave him the brush and paint with a sad face, but in his heart he was glad, His trick had worked.

After Ben got tired and left, other boys came along and Tom said the same things to them. Soon, the whole fence was painted white, but not by Tom. He felt very clever because he had discovered something important about the way people are. People only want what they can’t have or want to do what they shouldn’t do.

1.Which of the following has the closest meaning to the underlined word “opportunity” on this passage?

A．Reward           B．Interest.           C．Abilityy.           D．Chance.

2.Why did Tom pretend not to see Ben?

A．Because he wanted Ben to believe that the was enjoying the work.

B．Because he would like to try his best to attract Ben’s attention.

C．Because he did not want Ben to see the fact that he had to work.

D．Because he was afraid that Ben might laugh at him if the saw him.

3.What can we infer (推断) from the story?

A．Aunt Polly gave Tom a lot of pocket money for what he had done.

B．Ben and the other boys might feel unhappy when they found out the troth.

C．Tom believed that he had discovered how to deal with different people.

D．Everyone thought Tom clever when they realized what had happened.