|
本题添加时间：2023/4/3 12:59:00 |
|
圆梦客服：王老师 19139051760(微信同号) 19139051760(微信同号) |
Do you know why different animals or pests (昆虫) have their special colors? Colors in them seem to be used mainly to protect themselves.
Some birds like eating locusts (蝗虫), but birds cannot easily catch them. Why? It is because locusts change their colors together with the change of the colors of crops(庄稼). When crops are green, locusts look green. But as the harvest time comes, locusts change to the same brown color as crops have. Some other pests with different colors from plants are easily found and eaten by others. So they have to hide themselves for lives 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 move quietly through forests. They cannot be easily seen by hunters (猎人). This is because they have the colors much like the trees.
Have you ever noticed an even stranger act? A kind of fish in the sea can send out a kind of very black liquid (液体)when it faces danger. While the liquid spreads over (散开), its enemies (敌人)cannot find it. And it immediately swims away. So it has lived up to now though it is not strong at all.
6. From the passage we learn that locusts________.
A. are small animals
B. are easily found by birds
C. are dangerous to their enemies
D. change their colors to protect themselves
7. How can pests with different colors from plants keep out of danger?
A. They run away quickly.
B. They have the colors much like their enemies.
C. They hide themselves by day and appear at night.
D. They have to move quietly.
8. Bears and lions can keep safe because _________.
A. they have the colors much like the trees
B. they move quietly
C. they like brown and gray colors
D. they live in forests
9. Why can the kind of fish live up to now?
A. Because it is very and strong.
B. Because the liquid it sends out can help it escape from its enemies.
C. Because the liquid it sends out can kill its enemies.
D. Because it swims faster than any other fish.
10. Which is the best title for this passage?
A. The Change of Colors for Animals and Pests
B. Colors of Different Animals and Pests
C. The Main Use of Colors for Animals and Pests
D. Some Animals and Pests
|
答案是:D. change their colors to protect themselves
C. They hide themselves by day and appear at night.
A. they have the colors much like the trees
B. Because the liquid it sends out can help it escape from its enemies.
C. The Main Use of Colors for Animals and Pests
出自
河南城建学院大学英语（三） 联大系统
河南城建学院
|
更多试题>>>>
1、The machine looked like a large, ，old-fashioned typewriter.
A.forceful
B.clumsy
C.intense
D.tricky
2、As one of the world.s highest paid models, she had her face. for five million dollars.
A.deposiled
B.assured
C.
3、Ten days ago the young man info~ed his boss of his intention to
A.resign
B.reject
C.retreat
D.replace
4、elephants are difthrent from wild elephants in many aspects, including their tempers.
A.Cultivated
B.Regulated
C.Ci
5、percent of Chinese families buy prescription medicines and store them at home for later use. Of them, about 80 percent t
|
