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. When crops are green, locusts look green. But as the harvest(丰收) 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(立刻)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. change their colors to protect themselves

C. are dangerous to their enemies

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.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

4.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.

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

Friends are important in our lives, but how to keep our friendship is more important. Here are some ways for you.

Write letters

If your best friend moves to other cities, you could buy the same magazine, E-mail, phone or write each other about the articles(文章) in the magazine that make you laugh. This will make you have the same interest. Don’t forget to visit each other as often as you can.

Think of your friends first

What are your friends’ thoughts, dreams, hopes and fears? What are her past experiences? From these, you could think of ways to help your friends. You put your friend first, she or he feels special, and you both grow closer to each other.

Gifts from the heart

Take photos of a whole day or weekend together. Write a short story about your time you enjoyed. Save the movie tickets, restaurant stubs(票根) or special gifts you find every place you travel. Put everything in a box you’ll keep all the time.

Create your own fun ways to keep your friendship if you can.

1.__________makes you and your friends have the same interest.

A. Writing a letter in English B. Talking about the same magazine

C. Visiting each other often D. Thinking of your friends first

2.From Paragraph(段落) 4, we can find _________kinds of gifts from the heart.

A. two B. three C. four D. five

3.According to the passage we can learn that ..

A. Writing letters to each other can make you laugh.

B. Thinking of your friends first can make you grow closer to each other.

C. Taking photos for your friend is the best gift from the heart.

D. Sending your friend special gifts can make her/him feel special.

4.The writer wrote this article to tell us how to ___________

A. make friends B. find good gifts

C. create our own fun ways D. keep friendship

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