日本成人片在线_久久免费精品视频_国产午夜精品久久久久久免费视_校花撩起jk露出白色内裤国产精品_av影片免费在线观看_国产小视频在线看_最新av免费在线观看_99久久99久久精品国产片_欧美成人猛片aaaaaaa_蜜桃免费网站一区二区三区

Coal began as trees and plants．Several 1 years ago，every autumn 2 of the trees died in the forests，and more trees and plants grew．Mud and sand brought by the 3 pressed down the dead trees．

   4 years went by, new forests grew．This had happened many times．By the great pressure of the earth，the mud and sand were 5  layers(層)of rock．The 6 forests were turned into layers of coal．

  If you go to a mine，sometimes you can see lines  7 leaves．They help scientists to know what kind of trees and plants the coal was  8  。

Coal was probably first discovered in China．The first coal was found in the banks of rivers or from hillsides．People found this black Stone 8  for making fires．They began to 10 for it and the first coal mines were started．

1．A．thousand of  B．thousands    C．millions of    D．million

2．A．some    B．all    C．none   D．few

3．A．man    B．water    C．animals   D.forests

4．A．For    B .Since    C.As      D．With

5．A．become    B．turned    C．turn into    D．changed into

6．A．died    B．dying    C．dead    D．death

7．A．as    B．1ike    C.of    D．with

8．A．called    B．formed    C．from   D．under

9．A．could use    B．could be used    C．can be   D．can be used

10．A．dig    B．take    C send    D. pay

閱讀理解

Fire can help people in many ways. But it can also be very harmful. Fire can make water hot and houses warm, give light and cook food. But fire can burn things, too. It can make trees, houses, animals and other things catch fire. If some people can't run away from fire, it can kill them. This happens in every country. Sometimes a big fire can burn forests and destroy many tall buildings. Nobody knows clearly when people began to make a fire, but there are many interesting stories about the first time a man or a woman started a fire. One story from Australia tells about a man a long time ago. He went up to the sun and brought fire down. Today people know how to make a fire with matches. Children sometimes like to play with them. But matches can be very dangerous. The match can burn a piece of paper and then it can burn a house. A small fire can become a big fire. Fire kills many people every year. So we must be careful with fire.

1．The text mainly tells us ________.

[　　]

2．The word “destroy” in the text means ________ in Chinese.

[　　]

3．Matches can be dangerous because ________.

[　　]

A．they always burn a house

B．they can make things catch fire

C．they can burn a piece of paper

D．they kill many animals every year

4．Now people know fire can be ________.

[　　]

5．Which of the following is NOT true?

[　　]

A．Fire can make houses warm and cook food.

B．Fire can be harmful.

C．Fire can burn a house and kill people.

D．We know when man began to make a fire.

　　1970 was World Conservation (保護) Year. The United Nations wanted everyone to know that the world is in danger. They hoped that governments (政府) would act quickly to conserve nature (保護自然) . Here is one example of the problem. At one time there were 1 300 different plants, trees and flowers in Holland but now only 866 remain (剩余) . The others have been destroyed by modern man and his technology. We are changing the earth, the air, water and everything that grows and lives. We can't live without these things. If things go like this, we shall destroy ourselves.

　　What will happen in the future? Perhaps it is more important to ask, “What must we do now?” The people who will be living in the world of tomorrow are the young of today. A lot of them know conservation is necessary. Many are helping to save our world. They plant trees, build bridges across rivers in forests and so on. In a small town in the United States, a large number of girls cleaned the banks of 11 kilometres of their river. Young people may hear about conservation through a record called “No one's going to change our world.” It was made by the Beatles, Cliff Richard and other singers. The money from it will help to conserve animals.

(1) The United Nations wanted everybody to know that ________.

[　　]

(2) There are fewer plants, trees and flowers in Holland because ________.

[　　]

A．the weather there is too hot

B．the weather there is too cold

C．the weather there isn't warm

D．modern man and his technology have destroyed the place

(3) We shall ________ if we are changing the earth, the air, water and everything that grows and lives.

[　　]

A．make our life better

B．make ourselves more comfortable

C．make the world more comfortable

D．to destroy ourselves

(4) The moat important thing for us to do is ________.

[　　]

A．to clean the banks of our rivers

B．to conserve animals

C．to change the earth

D．to conserve nature

(5) From this passage we know that ________.

[　　]

A．we must change the earth

B．we should develop technology

C．we must act quickly to conserve nature

D．we should plant more plants, flowers and trees