阅读下列短文.从所给的四个选项中.选出最佳答案 Two boys, both of the same weight, sit on each side of a see saw．How far must they be from the centre in order to keep the see saw balanced? By moving to different positio 题目和参考答案——青夏教育精英家教网—

题目内容

阅读下列短文，从所给的四个选项中，选出最佳答案

　Two boys, both of the same weight, sit on each side of a see saw（跷跷板）．How far must they be from the centre in order to keep the see saw balanced?

　By moving to different positions, they will soon find out that they have to sit at equal distances from the centre．Now, if one of them is heavier, the heavier boy has to be nearer to the centre to make the see saw balanced．

　Things to do．

　Take a stone in each hand． Can you find out which stone is heavier? If the two stones are about the same size, you may not be able to tell which one is heavier．

　Place a pencil on two piles of books and balance a ruler and move them until the ruler is balanced．Find out how far each stone is from the pencil． The stone nearer to the pencil is the heavier one． Now you know how a simple weighing machine works．

1．The writer wants to tell us ______．

[　　]

A．what see saw is like

B．how to keep a see saw balanced

C．how a simple weighing machine works

D．what a simple weighing machine is like

2．If two boys sit at equal distances on each side of a see saw, the boy in the higher place shows ______．

[　　]

A．he is taller　　　 B．he is shorter

C．he is heavier　　　D．he is lighter

3．A see saw is used ______．　　　

[　　]

A．to weigh which boy is heavier of the two

B．to find out the weight of a boy

C．to make a simple experiment

D．for playing

4．In the last paragraph the writer tells us to ______.

[　　]

A．make an experiment

B．make full use of pencils, rulers and books

C．weigh something with stone

D．make a simple weighing machine

5．From the passage we can gain____　　．

[　　]

A．pleasure　　　 B．experience

C．knowledge　　　D．entertainment

答案：C;D;D;A;C

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相关题目

阅读下列短文，从所给的四个选项中，选出最佳答案

　A famous writer who was visiting Japan was invited to give a lecture at a university to a large group of students. As most of the students couldn't understand spoken English, he had to have an interpreter（口语翻译）.

　During his lecture he told an interesting story which went on for rather a long time. At last he stopped to allow the interpreter to translate it into Japanese, and was very surprised when the man did this in a few seconds, after which all the students laughed loudly.

　After the lecture, the writer thanked the interpreter for his good work and then said to him, “Now, please tell me how you translated that long story of mine into a short Japanese one.”

　“I didn't tell the story at all,” the interpreter answered with a smile, I just said, “The honourable lecturer has just told a funny story. You will all laugh, please.”

1． The man was invited to give a lecture ________.

　　　　　　 [　　]

A． to some university students

B． to some writers

C． on English idioms

D． on translation

2． The lecturer had to have an interpreter because________.　　

[　　]

A． the students were Japanese

B． the students could hardly understand English

C． only a few of the students could understand spoken English

D． he was poor at Japanese

3． What surprised the lecturer?　　　

[　　]

A． The students' laughter．

B． The interpreter's good work.

C． The speed of the interpreter's translation.

D． The slowness of the interpreter's translation

4． The lecturer's story was about _______.　　　　　　　　

[　　]

A． something interesting

B． nothing

C． English learning

D． his stay in Japan

第三部分阅读理解（共20小题。每小题2分，；满分40分）
阅读下列短文，从所给的四个选项（A、Ｂ、Ｃ和Ｄ）中，选出最佳选项。
Everyone has their friends, but I knew one girl who didn't. I guess you could call her a geek, because all she did was reading, studying, and doing homework. I don't think she even played a sport. She was one of those quiet people who no one really paid attention to, and
those who did only made fun of her. I had heard all kinds of rumors (谣言) that she had problems, but I didn't really believe them. I felt bad for her.
My friends and I were nice to her. We let her sit at our lunch table and we often said "Hi" to her, but she wasn't our best friend. Throughout the year, she started talking to us more and more. We continued being kind to her. She was normal as far as I was concerned (就我而言). She was just really quiet.
That summer I got a letter. When I opened it, I realized it was from her. “I just wanted to thank you so much for being so extremely kind and friendly to me this year. Before you
became my friend, I had no one to talk to or sit with at lunch. I even wanted to kill myself. But you and your friends changed that. You made me feel wanted and included. It meant so much to me. I am going to be moving and switching to another school next year. I'll never forget you and what you did."
By the time I finished the letter, I was in shock. I could not believe what I had just read. I learned that the simplest things and the smallest acts of kindness can mean the world to someone else.
56. What kind of person does the underlined word "geek" in Para1 probably refer to?
A. A confident and hardworking student.
B. A dishonest and badly behaved person.
C. Someone is not popular and does strange things
D. Someone is naughty and always makes fun of others.
57. How did the girl feel before the author became her friend？
A. Happy and comfortable.                 B. Pleased and confident.
C. Worried and surprised.                   D. Sad and lonely.
58. From the passage, we learn that the author and her friends ______.
A. helped get the girl out of trouble           B. got the girl to go to another school
C. changed the girl’s the habit of working hard D. didn't want to help the girl at all
59. What's the best title for the passage？
A. A Strange Girl                          B. A Quiet Heart
C. A Girl without Any Problems              D. Just the littlest Things

Ⅳ阅读理解(2×20，共40分)阅读下列短文，从所给的四个选项中，选出最佳答案。
Mr. Brown had a nice shop in the main street of a small town. He sold jewelry, watches and the like. All went well some years, and then his shop was broken into twice in one month at night, and a lot of jewelry was stolen each time. Three weeks had passed, yet the police had not done much to catch the thief. So Mr. Brown decided to try to do something about it himself. He bought a good camera and fixed it up in his shop and put some cheap jewelry in front of it for the thief so that it could take a photo of anyone who stole the jewelry. A few nights later the thief did come again. But he did not touch any of the cheap jewelry that Mr. Brown had put out for him. He took the camera, which was worth 15,000 pounds.
1. The jewelry the thief had stolen was ________
A. very valuable. B. worth little money.
C. quite cheap. D. of no use to the thief.
2. How did the thief know about jewelry?
A. He knew a little about jewelry.
B. He knew a lot about it.
C. The poor one knew nothing about jewelry.
D. He knew little about it.
3. Why did Mr. Brown buy a camera and put it in the shop?
A. Because the camera was not so expensive as the jewelry or the watches in the shop.
B. Because he knew that the thief was interested in a cheap camera.
C. Because he thought that a good camera could help him find out who the thief was.
D. Because the policemen told him to do so.
4. What did Mr. Brown lose during the two months?
A. 15,000 pound notes.
B. A camera and 15,000 pounds.
C. Lots of jewelry and a good camera.
D. A lot of jewelry, a camera and 15,000 pound notes.

Ⅳ阅读理解(2×20，共40分)阅读下列短文，从所给的四个选项中，选出最佳答案。

Mr. Brown had a nice shop in the main street of a small town. He sold jewelry, watches and the like. All went well some years, and then his shop was broken into twice in one month at night, and a lot of jewelry was stolen each time. Three weeks had passed, yet the police had not done much to catch the thief. So Mr. Brown decided to try to do something about it himself. He bought a good camera and fixed it up in his shop and put some cheap jewelry in front of it for the thief so that it could take a photo of anyone who stole the jewelry. A few nights later the thief did come again. But he did not touch any of the cheap jewelry that Mr. Brown had put out for him. He took the camera, which was worth 15,000 pounds.

1. The jewelry the thief had stolen was ________

A. very valuable. B. worth little money.

C. quite cheap. D. of no use to the thief.

2. How did the thief know about jewelry?

A. He knew a little about jewelry.

B. He knew a lot about it.

C. The poor one knew nothing about jewelry.

D. He knew little about it.

3. Why did Mr. Brown buy a camera and put it in the shop?

A. Because the camera was not so expensive as the jewelry or the watches in the shop.

B. Because he knew that the thief was interested in a cheap camera.

C. Because he thought that a good camera could help him find out who the thief was.

D. Because the policemen told him to do so.

4. What did Mr. Brown lose during the two months?

A. 15,000 pound notes.

B. A camera and 15,000 pounds.

C. Lots of jewelry and a good camera.

D. A lot of jewelry, a camera and 15,000 pound notes.

Ⅳ阅读理解(2×20，共40分)阅读下列短文，从所给的四个选项中，选出最佳答案。

1. The jewelry the thief had stolen was ________

A. very valuable. B. worth little money.

C. quite cheap. D. of no use to the thief.

2. How did the thief know about jewelry?

A. He knew a little about jewelry.

B. He knew a lot about it.

C. The poor one knew nothing about jewelry.

D. He knew little about it.

3. Why did Mr. Brown buy a camera and put it in the shop?

A. Because the camera was not so expensive as the jewelry or the watches in the shop.

B. Because he knew that the thief was interested in a cheap camera.

C. Because he thought that a good camera could help him find out who the thief was.

D. Because the policemen told him to do so.

4. What did Mr. Brown lose during the two months?

A. 15,000 pound notes.

B. A camera and 15,000 pounds.

C. Lots of jewelry and a good camera.

D. A lot of jewelry, a camera and 15,000 pound notes.

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