One way to make an egg stand up is to break the thick end．This is an old way to fool others and Columbus once used that．Another way is to shake a fresh egg and hold it upright a few minutes so the y 题目和参考答案——青夏教育精英家教网—

题目内容

One way to make an egg stand up is to break the thick end．This is an old way to fool others and Columbus once used that．Another way is to shake a fresh egg and hold it upright a few minutes so the yellow part of the egg will come down to the bottom．The yellow part of the egg is heavier than the white and will make the egg heavier at the bottom．You should be able to make it stand on its end（顶端）if you do everything tight．The third way is to place a little salt on a piece of white cloth before the test（试验）．The egg will stand in the salt，and your friends may think you are clever if they do not see the salt．

Fresh eggs will go down in water，If you find that an uncooked（生的）egg sits on water，you will know that it is made a long time ago，and has become bad．A fresh egg will not go down in salt water．Put in your fresh egg and watch it．

A magic can be played with a fresh egg，some salt and a glass full of water．First you fill the glass with some water，then put in two spoons of salt and move the spoon round and round until the salt is gone．Next you softly 6u fresh water in the glass．Please fill the water against the side of the glass so it will mix very little with salt water．It will not fall to the bottom because the salt is heavy，and it will not rise to the top through the fresh water，either．Your egg will stay in a place at the centre of the glass．

（）1．If you stand an egg on its end，it will _______

A．fall down B．stand upright C．fly D．be broken

（）2．If you shake a fresh egg long enough，the yellow part of the egg will _______．

A．become heavier B．come to the bottom C．come out D．become light

（）3．A bad egg _______．

A．has no yellow part in it B．stays halfway in water

C．goes to the bottom in water D．can stay on water

（）4．Which is the best tide for the passage?

A．What are eggs?

B．A magic about eggs．

C．Tests on eggs．

D．The differences between fresh eggs and bad eggs．

ABDC

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　　Do you keep a diary(日记)every day? Do you think it is great to remember just what you did on a day many years ago? One way to remember each day is to write about it in a diary．Many people write their diaries every day．They write about what they did, what they ate, whom they saw and met, how they did something and how they felt during that day．

　　Most people do not want anyone else to read their diaries．They keep them in a safe(安全的)place．Some Chinese students try to keep diaries in English not only to help themselves to remember something, but also to practice English．

　　Long ago, many people wrote diaries, too．People have found some of those old diaries．Some diaries are useful because we can learn about the life long ago, or we can get to know something important or something interesting．

　　There are many famous diaries in the world．Most people in China have read the Diaries of Lei Feng．Lei Feng was a soldier(战士)．In his short life, he did a lot of good things for others and for his country．He was always ready to give, but never asked for anything from people．He kept diaries and from them, people learn what a great man he was．In China’s schools, students learn some of his diaries as texts(课文)．

1．Many people write diaries every day because they don’t want to forget what they did or how they ________．

2．Some Chinese students ________　________ in English to remember something and practice English．

3．From Lei Feng’s diaries, people know that he was always ready to _______, but asked for _______ from people．

4．In order to stop anyone else reading their diaries, most people keep them in a _______．

5．You can find some of Lei Feng’s diaries in _______　_______ textbooks(课本)．

James shook his money box again.
Nothing! He carefully counted the coins that lay on the bed. All that he had was $24.52 (about 153 yuan). The bicycle he wanted was at least $90! How on earth (究竟) was he going to get the rest of the money?
He knew that his friends all had bicycles. It was hard to hang out with people when you were the only one without a bicycle. He thought about what he could do. There was no point asking his parents, for he knew they had no extra money.
There was only one way to get money, and that was to earn (挣) it. He would have to find a job. He decided to ask Mr Clay for advice.
“Well, you can start right here,” said Mr Clay. “You see, my windows need cleaning and my car needs washing.”
That was the beginning of James’ part-time job.
For the next three months he worked every day after finishing his homework. He took dogs for walks, cleaned out cupboards and repaired books.
The day finally came when James counted his money and found $ 94.32. He wasted no time and went down to the shop to pick up the bicycle he wanted. He rode home proudly, looking forward to showing his new bicycle to his friends. It had been hard working for the money, but James knew that he valued (珍惜) his bicycle far more because he had bought it with his own money. He had achieved what he thought was impossible, and that was worth even more than the bicycle.
【小题1】Why didn’t James ask his parents for help?

A．Because they didn’t love him.

B．Because they didn’t have extra money.

C．Because they lived far away from him.

D．Because they didn’t need a bike.

【小题2】In order to buy a bicycle, James .

A．found a job

B．borrowed money from his classmates

C．sold his old books

D．asked his grandfather for some money

【小题3】James did the following jobs EXCEPT .

A．walking dogs	B．cleaning out cupboards
C．cooking meals	D．repairing books

【小题4】How much money did James earn?

【小题5】What does the writer want to tell us?

A．We should buy everything we want.

B．We should get what we want through hard work.

C．Parents shouldn’t give children any money.

D．We shouldn’t show off new things to poor children.

James shook his money box again. Nothing! He carefully counted the coins that lay on the bed. $24. 17 was all that he had. The bicycle he wanted was at least $90! How was he going to get the end of the money?

He knew that his friends all had bicycles. It was hard to hang around with people when you were the only one without wheels. He thought about what he could do. It was no use asking his parents, for he knew they had no money to save.

There was only one way to get money, and that was to earn it. He would have to find a job. But who would hire him and what could he do? He decided to ask Mr. Clay for advice, who usually had opinions on most things.

“Well, you can start right here,” said Mr. Clay. “My windows need cleaning and my car needs washing. ”

That was the beginning of James’ part-time job. For three months he worked every day after finishing his homework. He was amazed by the different kinds of jobs that people found for him to do. He took dogs and babies for walks, cleared out cupboards, and mended books. He lost count of the number of cars he washed and windows he cleaned, but the money increased and he knew that he would soon have enough for the bicycle he was eager to have.

The day finally came when James counted his money and found $94. 32. He wasted no time and went down to the shop to pick up the bicycle he wanted. He rode proudly home, looking forward to showing his new bicycle to his friends. It had been hard working for the money, but James knew that he valued his bicycle far more since he had bought it with his own money.

1.James in the passage was probably ________.

A．a cleaner B．a worker C．a student D．a teacher

2.The only way for James to earn money was to ________.

A．find a part-time job B．borrow some from his parents

C．ask Mr. Clay for help D．study very hard

3.Which of the following is NOT mentioned in the passage?

A．He mended books. B．He cleared out cupboards.

C．He washed dogs. D．He cleaned windows.

4.James valued his bicycle very much because ________.

A．it was very expensive B．it was bought with his own money

C．he was too poor to have one D．his friends all had bicycles.

After spending years searching for a planet with life, scientists may have found one. In September 2010, a team of US scientists discovered an Earth-sized planet called Gliese 581g. It has a surface temperature neither too hot nor too cold for liquid（液态）water. Scientists think there is a chance that the planet could have life.

The planet Gliese 581g goes around a star called Gliese 581, which is about 20 light-years from Earth. That is about 194 trillion（万亿）kilometres －500 million times farther away from us than the moon.

A spacecraft traveling at a one-tenth of the speed of light would reach Gliese 581g within about 220 years. A human can’t live that long, but robotic explorers could make the job easier. However, our fastest spacecraft don’t come anywhere near that one-tenth light-speed mark.

At present, scientists don’t know what the surface might be like on Gliese 581g. What they know is that the planet is at the sight distance from its star to have liquid water. It’s also at the right distance to have an atmosphere that could protect the water if it is on the surface.

Although spacecraft won’t be getting there anytime soon, one way to look for life on Gliese 581g is to turn our radio telescopes（望远镜）towards the planet and search for radiation（放射）. By studying the radiation, scientists would find out about the chemicals（化学物质）around the planet and discover it Gliese 581g has an atmosphere. If it has one, studying the atmosphere would give us a good idea if the planet has life or not. But it’ll probably be many years before we can do this properly.

People have been arguing about whether there is alien life on Gliese 581g. Any discussion about alien life is just guessing at this point, according to its discoverers.

1. What did scientists find in September 2010?

A. A planet with water. B. A planet similar to the earth.

C. A planet without life. D. A planet near the earth.

2.According to the article, Gliese 581g ________.

A. is at the right distance from its star B. moves around the earth

C. is as far away from us as the moon D. can be reached in about 220 years

3. Paragraph 5 is mainly about ______.

A. the possibility of living on Gliese 581g

B. the kinds of chemicals around Gliese 581g

C. the way of looking for life on Gliese 581g

D. the aim of studying the radiation on Gliese 581g

4.Which of the following is the best title for the passage above?

A. Gliese 581g, a Likely Living Planet B. Gliese 581, a Likely Living Planet

C. Gliese 581g and Its Star D. Gliese 581g and Radiation

People from all over the world make friends_____66____writing letters. One way to find a pen friend is to _____67____a club. International Pen Friends started in 1967 and has over 300,000members(成员) in different countries. Their____68___member is eight years old, and their oldest member is over 80. Some people write to find out about life in another country, ___69___want to practice their English, or enjoy their hobbies. Stamp collectors, for example, write to people in different countries ___70__that they can collect the stamps on the letters they receive. Most people just enjoy making friends, and they invite their pen friends to visit them.

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