Every object has weight. But the center of its weight is not always in the middle of the object. If the top of an object is heavier than its bottom, it will fall over easily. We say that its center of gravity is high. But if the bottom is heavier, it won’t fall easily. Then we say that its center of gravity is low.
Look at the first picture. This empty box must fall over, because its center of gravity (C) is not above the line of its bottom (AB).
Now look at the second picture. There is some heavy iron in the bottom of this box. It will not fall, because its center of gravity is above its bottom.

【小题1】If the bottom of an object is ______ its top, it will fall over easily.

A．lighter than

B．heavier than

C．no heavier than

D．as heavy as

【小题2】Please point out which box will not fall.

【小题3】The main idea of the passage is _________.

A．why things fall over	B．a low center of gravity
C．a high center of gravity	D．that everything has weight

Every object has weight. But the center of its weight is not always in the middle of the object. If the top of an object is heavier than its bottom, it will fall over easily. We say that its center of gravity is high. But if the bottom is heavier, it won’t fall easily. Then we say that its center of gravity is low.

Look at the first picture. This empty box must fall over, because its center of gravity (C) is not above the line of its bottom (AB).

Now look at the second picture. There is some heavy iron in the bottom of this box. It will not fall, because its center of gravity is above its bottom.

1.If the bottom of an object is ______ its top, it will fall over easily.

A. lighter than　　 B. heavier than　　 C. no heavier than　　  D. as heavy as

2.Please point out which box will not fall.

3.The main idea of the passage is _________.

A. why things fall over　　　　         B. a low center of gravity

C. a high center of gravity　　             D. that everything has weight

 

任务型阅读 每空一词

Some people are successful, while others may not. This is because some people have some qualities, which others do not.

　　The first thing you must remember is that in order to be successful, you must have optimism(乐观). If you do not look forward to winning, you will not try as hard as those who look forward to winning. You also need to have a clear aim and a reason for doing something because motivation(动机) is a key to achieving success. If you do not have an aim, then you will not be motivated to work hard and put your performance under the microscope (显微镜) to make sure that every detail is right.

Another quality that helps people to be successful is creativity---thinking about things in a different way and wondering how others would do the same thing. Think about some successful people you know. They might be successful with a little creativity, but the most successful people are the most creative ones.

　　Reading is another to success, as it will help you learn about how other people have achieved success. If you want to learn how to set up a successful business, you should read books about people like Bill Gates and Steve Jobs, who have achieved amazing success in their areas of business.

Practicing is also very important if you want to have success because practice makes perfect. Practice every day at whatever career you are in, and by doing so, you will see yourself, your business and your self-confidence begin to grow. If you feel confident about what you do, this confidence will make other people believe in you as well. Your partners will be happy to work with you, and your boss will give you more chances. Finally if you are a successful person, you will be able to look at people in the eye and smile confidently.

Title ：    1.
Some      2.	Supporting details
Optimism	●Try hard   3. people who look forward to winning. ●Have a clear      4.  and a reason for doing something because a key to achieving success is motivation.
Creativity	●Think about things      5. . ●Study how other people would do the      6.  thing.
7.	●Help you know about how      8.have achieved success. ●Read books about famous people such as Bill Gates and Steve Jobs to encourage yourselves.
Practicing	●Understand the saying “Practice makes     9. .” ●You will be     10.more chances because of confidence.

 

 

　The computer plays an important part in our everyday life. It is one of the great __1__ in the world in the __2__ century. It works for us not only at home, in the offices, in big shops, __3__ at schools. Today it is used __4__ many ways. It really __5__ the world large wealth (财富) and happiness.
　　The first computer in the world was __6__ Enid. It was built in America in 1946. It was __7__ and heavy. __8__ it was born, it has been developing very fast. Until now it has gone __9__ four periods（时期，阶段）and changed a lot. There’re many kinds of computers. Computers are getting smaller and smaller and computing faster and faster. It becomes more and more __10__.
　　The computer can do most of the things __11__ the people. It can help us to __12__ about the real world more quickly, to learn __13__ we want to learn and to think __14__ ourselves. __15__ a student in the twenty-first century, you must work hard at it.

　　1. A. inventions     B. discoveries C. robots               D. inventors
　　2. A. twenty-first   B. twenties   C. twelfth      D. twentieth
　　3. A. also             B. but also     C. too            D. either
　　4. A. in              B. to             C. by             D. over
　　5. A. takes            B. helps         C. gets           D. brings
　　6. A. found           B. invented     C. called       D. bought
　　7. A. easy             B. small         C. large         D. light
　　8. A. For              B. Until         C. When      D. Since
　　9. A. by                B. across      C. through     D. against
　　10.A. serious         B. harmful.    C. dangerous D. helpful
　　11.A. for             B. to             C. at              D. with
　　12.A. set              B. tell         C. know               D. talk
　　13.A. what            B. that           C. which        D. who
　　14.A. of               B. about        C. out            D. for
　　15.A. For             B. Be            C. As             D. To

One morning, a blind boy sat on the steps of a building with a hat by his feet .He held a sign which said,“I am blind. Please help me.”

　　There were only a few coins in the hat. A man was walking by. He took out a few coins from his pocket and dropped them into the hat .He then took the sign, turned it around, and wrote some words on it. He put the sign back so that everyone who walked by could see the new words.

　　Soon the hat began to fill up. A lot more people were giving money to the blind boy. That afternoon the man who had changed the sign came to see how things were. The boy recognized his footsteps and ask, “Are you the one who changed my sign in the morning? What did you write?”

　　The man said, “I only wrote the truth. I said what you said, but in a different way.”

　　What he had written was, “Today is a beautiful day, but I can’t see it.”

　　Do you think the first sign and the second sign were saying the same thing?

　　Of course both signs told people the boy was blind. But the first sign simply told people to help by putting some money in the hat. The second sign told people that they were able to enjoy the beauty of the day, but the boy could not enjoy it because he was blind.

　　The first sign simply said the boy was blind, while the second sign told people they were so lucky that they were not blind.

　　There are at least two lessons we can learn from this simple story.

　　The first is: Treasure (珍惜) what you have. Someone else has less. Try your best to help those who need your help.

　　The second is: Be creative. Think differently. There is always a better way.

1  From the passage we know that________.

   A. the boy is the man’s son.                    B. the man is one of the boy’s neighbors.

   C. the boy is blind and needs help.               D. the boy works for the man.

2  On the sign what the man wrote was, “________”

   A. Treasure what we have already had.

   B. Today is a beautiful day, but I can’t see it.

   C. We are so lucky that we are not blind.

   D. Try your best to help those who need your help.

3  According to the passage, which of the following is TRUE?

   A .The hat began to fill up after the man wrote some words on the sign.

   B. The man took away all the few coins from the hat.

   C. The boy wanted to get enough money to go to school.

   D. Nobody wanted to give any coins to the blind boy.

4  The word “recognized” here in Chinese means________.

   A.承认                  B.接受                         C.表扬               D.认出

5  The best title for this story is _________.

   A. Giving makes receiving!                  B. Be kind and creative!

   C. Be kind to the blind!                     D. Do not always get, but offer!