Question

【題目】A

Do you know why different animals or pests(昆蟲) have their special colors? Colors in them seem to be used mainly to protect themselves.

Some birds like eating locusts(蝗蟲), but birds cannot easily catch them. Why? 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 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(獵人). 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 (液體) when it faces danger. While the liquid spreads over(散開), its enemies(敵人) cannot find it. And it immediately swims away. So it has lived up to now though it is not strong at all.

【1】From the passage we learn that locusts _________________.

A. are small animals

B. are easily found by birds

C. change their colors to protect themselves

【2】 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.

【3】 What does the underline phrase ＂crops＂ mean?

A. 灌木叢 B. 莊稼 C. 水草

【4】 Which of the following is NOT TRUE?

A. Bears and lions can keep safe because their colors are like the trees

B. Some pests can’t change their colors with the crops.

C. The kind of fish can live up to now because its black liquid can kill its enemies.

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

A. The Change of Colors for Animals and Pests

B. The Main Use of Colors for Animals and Pests

C. Colors of Different Animals and Pests

Answer 1

【答案】

【1】C

【2】C

【3】B

【4】C

【5】B

【解析】

【文章大意】這篇短文主要介紹了這篇文章講述了不同的動(dòng)物和害蟲都會(huì)有著和環(huán)境相似的顏色，這些顏色主要是用來保護(hù)它們自己不受到傷害。

【1】細(xì)節(jié)理解題。根據(jù)文章中的Some birds like eating locusts, but birds cannot easily catch them. Why? It is because locusts change their colors together with the change of the colors of crops.可知，蝗蟲能夠隨著農(nóng)作物的顏色的變化而改變自己的顏色，這樣就可以保護(hù)自己不被鳥類吃掉。故選C。

【2】細(xì)節(jié)理解題。根據(jù)文章中的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.描述，可知選C。

【3】詞義猜測題。根據(jù)后文中的But as the harvest time comes, locusts change to the same brown color as crops have.但是隨著收獲季節(jié)的到來，蝗蟲又變成了和莊稼一樣的顏色，根據(jù)蝗蟲是莊稼的害蟲及收獲，可知是莊稼，故選B。

【4】是非判斷題。根據(jù)文章中的While the liquid spreads over (散開), its enemies (敵人) cannot find it. And it immediately swims away.可知黑色的液體只是幫助它逃跑，而不是殺死敵人，故選C。

【5】標(biāo)題歸納題。通過閱讀短文可知，本文主要介紹了動(dòng)物和昆蟲是如何通過顏色來保護(hù)自己的，故選B，顏色對(duì)于動(dòng)物和昆蟲的主要用途。