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 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.

1.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

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.

   D. They have to move quietly.

3.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

4.Why can the kind of fish live up to now?

A. Because it is very 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.

5.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

根据短文内容和首字母提示，把文中所缺单词填写在短文后的横线上。

The generation gap (代沟) has become a serious problem. It’s reported that some children have killed themselves a ___79_ arguing with their parents. I think this is because they don' t have a good t ___80__ with each other. Parents now spend more time in the office, so they don’t have much time to s __81__ with their children.  As time passes, they both feel that they don't have the

s __82__ topic (话题) to talk about. I think parents should be more with children, get to know them and understand them. And for children, show your feeling to your parents. They really love you. So t __83__ them your thoughts (想法). In this way, you can have a better understanding of each other.

1.___  2.._______  3._______   4.________  5._______

根据短文内容，用方框中所给单词的适当形式填空，每词限用一次。

Have you ever __1.__ that some people can’t read or write __2.__ they usually have better memories? This is because they cannot read or write and they have to remember things; they cannot write them down in a little __3.__. They must remember dates, names, songs and __4.__; so their memories are being exercised the whole time.

So if you want a good memory, learn from these people: __5.__ remembering.

1 

— What’s this in English?     

—________ a map.

A. This is               B. They are              C. It’s