Ladies and gentlemen, I returned to this year in a time machine. In the year 2500, we are able to travel through time to any year in the history of the earth. This year is your last chance your lifestyle to save the earth.

  Beginning in the middle of the 20^th century, a few people were worried about polluting the earth’s water and air, but most people did not change their way of life. Instead, they continued to pour(倒) dangerous chemical(化学物品) and other waste into lakes and seas, to drive more and more cars and trucks, and to cut down trees.

  By the year 2200, the earth’s water was completely polluted. People could no longer drink water, and they had to use other types of liquids(液体). Scientists said that in the future there might be too many people on the earth. But not enough was done.

  So by the year 2300, there were so many people that food became scarce. There was no water to grow food and all of the fish in lakes and seas died because of pollution. Terrible wars broke out between the rich and the poor. Scientists were working very hard to find another planet in space where humans could live.

  By the year 2400, the air was too polluted for humans to breathe. So we had to leave the earth. But only the rich were able to leave. Where did we go? Nowhere. And everywhere. You see scientists did not find another safe planet, so now we must travel around the universe in our space ships. We are still looking for a place to call our home.

  So it is up to you to change history. There is still hope. You must change your lifestyle now, before it is too late.

1.Which problem is NOT talked about in Paragraph 2?

A. Water        B. Air        C. Lifestyle     D. Food

2. The underlined word ‘scarce’ means ‘______’ in Chinese.

A. 昂贵的       B. 充足的       C. 缺乏的       D. 特殊的

3.Which of the following is NOT true?

A. Only a few people changed their lifestyle in the 20^th century.

B. There was no clean water for people to drink by the year 2200.

C. All the fish died because of the pollution by the year 2300.

D. We found a new home in another planet by the year 2400.

4.What’s the best title of the passage?

A. Stop polluting                       B. Change or leave   

C. Look for new home                   D. Return to the earth

 

If you want to watch and know something about birds, you must find a good place near the bird nest（巢）.

Birds sit on eggs and take care of their babies from April to June. Because the baby birds are too young to leave the nest, parents often go to look for food and come back in several minutes. So it is good to watch birds. When we watch birds, we’d better hide ourselves in a close place to the nest, and it’s better to use binoculars(双筒望远镜).

But how to make a bird nest? A good bird nest must be very fine, strong, thick and comfortable. If you want to make one, please follow these:

a) Each nest must have six boards（木板）. Don’t make the boards too slippery（滑）.

b) Dig a small hole in the front of the nest as a “door”. The “door” is big enough so birds can fly in or out easily.

c) Make sure the rainwater can’t go into the nest.

d) One piece of the board should be easy to open.

e) Don’t forget to colour the nest.

1.The most important thing in watching birds is to         .

A. look for a place near the bird nest        B. climb up to the trees

C. catch a bird                         D. kill a bird

2.We have to hide ourselves to      , when we’re watching birds.

A. take better care of them             B. use the binoculars

C. make them do everything as usual     D. kill them at last.

3.If we make the nest too slippery,         .

A. it won’t be very beautiful

B. it won’t be easy to make

C. it won’t be strong

D. it’s very difficult for birds to hold or stand on it

4. We should leave a hole in the front of the nest so that        easily.

A. we can clean the nest       B. birds can fly in or out

C. we can hang（挂）        D. we can make it

5. What’s the best title of this passage?

A. Birds are man’s friends               B. How to catch birds

C. Watching birds and making bird nests    D. How to keep birds

 

阅读理解

阅读下面短文，根据短文内容选择最佳答案．

　　If we find a bird nest, we will have a good place of observing(观察) and knowing about birds.

　　Birds sit on eggs and take care of their baby birds from April to June. Because the baby birds are too young to leave the nest, mothers often leave and come back to the nest during the time to look for food. So it is good to observe birds. When we observe birds, we'd better hide(躲藏) ourselves in a close place to the nest, and it's better to use binoculars(双筒望远镜).

　　But how to make a bird nest? Picture ① and Picture ② are two kinds of bird nests. Picture ③ gives you some other kinds of bird nests. They are very easy to make. If you want to make one, please follow these:

　　Making a nest: A good nest must be very fine, strong, thick and easy.

　　a) Each nest must have six boards. Don't make the boards too slippery(光滑).

　　b) Dig a small hole in the front of the nest as a door. The “door” is from 3cm to 5cm. So the bird can fly in or out easily.

　　c) Make sure the rainwater doesn't go into the nest.

　　d) One piece of the boards should be easy to open.

　　e) Please don't forget to colour the nest.

1．The most important thing in observing birds is ________.

[　　]

A．to write down notes every day

B．to climb trees

C．to look for a place near the nest

D．to make a bird nest

2．When we're observing birds, we have to hide ourselves ________.

[　　]

A．to catch the birds at last

B．to look after them

C．to use the binoculars

D．to make them do everything as usual

3．If we make the nest too slippery, ________.

[　　]

A．it's not very beautiful

B．it's not easy to make

C．it's not strong

D．it's very difficult for birds to hold or stand on

4．We should leave a hole in the front of the nest so that ________.

[　　]

A．the birds can fly in or out

B．we can clean the nest

C．it's easy to make

D．we can hang it easily

5．What's the title(题目) of this passage?

[　　]

A．Listening to the songs of birds.

B．Observing birds and making bird nests.

C．Playing with the birds.

D．Birds and men.