阅读理解

　　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（引力）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, lifts empty box must fall over, bemuse 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 at the bottom of this box. It will not fall, because its center of gravity is above its bottom.

(1) Please point out which box will not fall?

(2) From the passage, we can infer that the Leaning Tower of Pisa does not fall is because_______.

[　　]

A．the top of the tower is heavier than its bottom

B．the bottom of the tower is not heavier than its top

C．its center of the gravity is still above the line of its bottom

D．its center of the gravity is not above the line of its bottom

(3) If an object has a low center of gravity, _______.

[　　]

A．it won't fall	B．it won't fall easily
C．it is certain to fall over	D．its top must be heavier

(4) Which of the following is TRUE according to the passage?

[　　]

A．The center of the weight is always in the middle of the object

B．The center of the weight is always on the object

C．The center of gravity is not always in the middle of the object

D．The center of the gravity is always high

(5) The passage is mainly about _______.

[　　]

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

We call the baby panda Xi Wang. Xi Wang in this sentence is________.

　    A. Direct Object           B. Indirect Object  C. Object Complement  D. Attributive

 

If you go to Finland, you’ll be surprised to find how “foolish” the Finnish people are.

Take the taxi drivers for example. Taxis in Finland are mostly high class Benz with a fare (票价) of two US dollars a kilometer. You can go anywhere in one, tell the driver to drop you at any place, say that you have some business to attend to, and then get off without paying your fare. And the driver would not show the least sign of worry.

The dining rooms in all big hotels not only serve their guests, but also outside diners. Hotel guests have their meals free, so their good faith is to wave their registration card to the waiter. With such a loose check, you can easily use any old registration card to take a couple of friends and dine free of charge.

With so many loopholes (漏洞) in everyday life, surely Finland must be a heaven to those who love to take “pretty advantages”. But the strange things is, all the taxi-passengers would always come back to pay their fare after they have attended to their business; not a single outsider has ever been found in the free hotel dining rooms. As the Finns always act on good faith and always show an attitude of “which is which” and “what is what” in everything they do, so to live in such a society has turned everyone into a real “gentleman”. In a society of such high moral practice, what need is there for people to take precautions (预防措施) against others?

1.The word “foolish” probably means _____________.

A．friendly

B．careful

C．strange

D．funny

2.Why wouldn’t the driver show the least sign of worry? Because _________.

A．he is sure that the passengers always act on good faith

B．he is afraid to make the passengers angry and unhappy

C．he thinks the passengers may be too poor to pay him

D．he is sure that the passengers are really in trouble

3.The dining rooms in all big hotels ___________.

A．check the guests’ registration card carefully

B．give people meals without paying

C．serve their guests free of charge

D．only serve their guests free breakfast

4.What’s FALSE according to the passage?

A．No one takes advantages although there are many loopholes.

B．All the taxi-passengers come back to pay their fare after they have attended to their business.

C．Not a single outsider has ever been found in the free hotel dining rooms.

D．Finland is heaven for immoral people because they can always take advantages freely.

5.The sentences “which is which” and “what is what” show that __________.

A．the Finns are foolish

B．the Finns take things seriously

C．the Finns are busy making money for the family

D．the Finns never take precaution against others

 

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

 

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