Do you know why different animals or insects have their special colors? Colors are used mainly to protect themselves.
Why can’t some birds easily catch locusts（蝗虫）? It is because locusts change their colors together with the change of the colors of crops. When crops are green, locusts look green. But as autumn comes, locusts change to the same brown color as crops have. Some other insects with different colors from plants are easily found and eaten by others. So they have to hide themselves for lives in the day and appear only at night.
If you study the animal life, you’ll find the main use of coloring is to protect themselves. Bears, lions and other animals can’t be easily seen by hunters. This is because they have the colors much like the trees.
Have you ever noticed an even more strange thing? A kind of fish in the sea can send out black liquid when it faces danger. While the liquid spreads over, its enemies can’t find it. And it quickly swims away. So it has lived up to now though it is not strong at all.
【小题1】 From the article we learn that locusts 　　　　　　　　　.

A．are dangerous to their enemies	B．are easily found by birds
C．change their colors to protect themselves	D．are small animals

【小题2】How can insects with different colors from plants keep out of danger?

A．They have to move quietly.

B．They hide themselves in the day and appear at night.

C．They have the colors much like their enemies.

D．They run away quickly.

【小题3】 Bears and lions can keep safe because 　　　　　　　　　.

A．they live in forests	B．they like brown and grey colors
C．they move quietly	D．they have the colors similar to the trees

【小题4】What does the word “liquid” mean in the last paragraph?

A．气体

B．固体

C．液体

D．水蒸气

【小题5】 Which is the best title for this passage?

A．The Main Use of Colors for Animals and Insects

B．Colors of Different Animals and Insects

C．The Change of Colors for Animals and Insects

D．The Change of Different Animals and Plants

One day, my wife and I went shopping. We took the car as we had a lot of things to buy because my brother and his family were going to spend the weekend with us. We stopped the car in front of the shop. An hour later we came back to the car with a lot of things. Then the trouble started. We could not open the car door. “Oh, dear,” said my wife. “What are we going to do?” “Let’s ask that policeman,” I said. The policeman was very kind and glad to help us. Soon he got the door open. Just at that moment an angry man came up and shouted. “What are you doing with my car?” We looked at the number of the car, and our faces turned very red.

选择符合短文的正确答案

1. The husband and the wife went shopping　　   .　　　　　　　　　　　　  

A. by bus　　　　 B. in their car    　　C. by bike　　  D. on foot

2. They spent　　   in the shop doing their shopping.　　　　　　　　 

A. half an hour　　 B. four hours　　    C. one hour　　 D. eight hours

3. The　　   opened the car door in the end.　　　　　　　　　　　　

A. husband 　　   B. wife　　　　    C. policeman　　 D. owner of the car

4. The owner of the car was very angry to see　　   .　　　　　　　　　　　　

A. some one had opened his car door　　    B. the policeman standing by the car

C. his car was not there　　　　  　　　　 D. that there was a trouble

5. They didn’t know it was the wrong car until they looked at the　　 of the car.

A. color　　　　 B. owner　　　　   C. door　　　　 D. number

 

Do you know why different animals or insects have their special colors? Colors are used mainly to protect themselves.
Why can’t some birds easily catch locusts（蝗虫）? It is because locusts change their colors together with the change of the colors of crops. When crops are green, locusts look green. But as autumn comes, locusts change to the same brown color as crops have. Some other insects with different colors from plants are easily found and eaten by others. So they have to hide themselves for lives in the day and appear only at night.
If you study the animal life, you’ll find the main use of coloring is to protect themselves. Bears, lions and other animals can’t be easily seen by hunters. This is because they have the colors much like the trees.
Have you ever noticed an even more strange thing? A kind of fish in the sea can send out black liquid when it faces danger. While the liquid spreads over, its enemies can’t find it. And it quickly swims away. So it has lived up to now though it is not strong at all.
【小题1】 From the article we learn that locusts 　　　　　　　　　.

A．are dangerous to their enemies	B．are easily found by birds
C．change their colors to protect themselves	D．are small animals

【小题2】How can insects with different colors from plants keep out of danger?

A．They have to move quietly.

B．They hide themselves in the day and appear at night.

C．They have the colors much like their enemies.

D．They run away quickly.

【小题3】 Bears and lions can keep safe because 　　　　　　　　　.

A．they live in forests	B．they like brown and grey colors
C．they move quietly	D．they have the colors similar to the trees

【小题4】What does the word “liquid” mean in the last paragraph?

A．气体

B．固体

C．液体

D．水蒸气

【小题5】 Which is the best title for this passage?

A．The Main Use of Colors for Animals and Insects

B．Colors of Different Animals and Insects

C．The Change of Colors for Animals and Insects

D．The Change of Different Animals and Plants