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.

1.From the passage we learn that locusts________.

2.How can pests with different colors from plants keep out of danger?

3.Bears and lions can keep safe because _________.

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

5.Which is the best title for this passage?

I lost my sight when I was four years old by falling off a box and landing on my head. Now I am thirty-two. I can vaguely(模糊地) 　1　 the brightness of sunshine and what color red is. It would be wonderful to see things again, 　2　 a disaster can do strange things to people. It happened to me the other day that I might not have come to love 　3　 as I do if I hadn’t been blind. I believe in life now. I am not sure that I would believe in it so 　4　. I don’t mean that I would prefer to go without my eyes. I 　5　 mean that the loss of 　6　 made me enjoy more of 　7　 I have now.
Life asks us to keep making 　8　 to reality. If a person is able to get ready for anything changeable his world will 　9　 more meaningful. I became blind, but I was 　10　. My parents and my teachers saw 　11　 in me－a potential(潜力) to live, you might call it－which I didn’t see, and they make me fight it out with blindness.
The hardest 　12　 I had to learn was to believe in myself. That was what I had to do at least. If I hadn’t been able to do that, I would become a chair rocker for the 　13　 of my life. When I say I believe in myself I am not talking about simply the kind of self-confidence that helps me down an unfamiliar staircase 　14　. That is part of it. But I mean something bigger than that: A belief that I could deal with anything alone; that somewhere in the 　15　 there is a special place where I can make myself fit.
1. A. imagine       B. find             C. remember     D. guess
2. A. but           B. though               C. so           D. because
3. A. myself       B. life             C. eyes         D. blindness
4. A. that         B. therefore            C. happily      D. deeply
5. A. seldom        B. just             C. hardly           D. always
6. A. them      B. it                   C. blindness        D. light
7. A. that         B. what             C. which            D. where
8. A. moments      B. encouragements       C. improvements D. changes
9. A. become        B. change               C. look         D. end
10. A. brave        B. lucky                C. sad          D. wise
11. A. something    B. everything           C. nothing      D. anything
12. A. problem      B. experience           C. difficulty       D. lesson
13. A. rest     B. whole                C. need         D. last
14. A. lonely       B. alone                C. self         D. person
15. A. company  B. group                C. society  (社会)   D. family

I lost my sight when I was four years old by falling off a box and landing on my head. Now I am thirty-two. I can vaguely(模糊地) 　1　 the brightness of sunshine and what color red is. It would be wonderful to see things again, 　2　 a disaster can do strange things to people. It happened to me the other day that I might not have come to love 　3　 as I do if I hadn’t been blind. I believe in life now. I am not sure that I would believe in it so 　4　. I don’t mean that I would prefer to go without my eyes. I 　5　 mean that the loss of 　6　 made me enjoy more of 　7　 I have now.

Life asks us to keep making 　8　 to reality. If a person is able to get ready for anything changeable his world will 　9　 more meaningful. I became blind, but I was 　10　. My parents and my teachers saw 　11　 in me－a potential(潜力) to live, you might call it－which I didn’t see, and they make me fight it out with blindness.

The hardest 　12　 I had to learn was to believe in myself. That was what I had to do at least. If I hadn’t been able to do that, I would become a chair rocker for the 　13　 of my life. When I say I believe in myself I am not talking about simply the kind of self-confidence that helps me down an unfamiliar staircase 　14　. That is part of it. But I mean something bigger than that: A belief that I could deal with anything alone; that somewhere in the 　15　 there is a special place where I can make myself fit.

1. A. imagine       B. find             C. remember     D. guess

2. A. but           B. though               C. so           D. because

3. A. myself        B. life             C. eyes         D. blindness

4. A. that          B. therefore            C. happily      D. deeply

5. A. seldom        B. just             C. hardly           D. always

6. A. them      B. it                   C. blindness        D. light

7. A. that          B. what             C. which            D. where

8. A. moments       B. encouragements       C. improvements D. changes

9. A. become        B. change               C. look         D. end

10. A. brave        B. lucky                C. sad          D. wise

11. A. something    B. everything           C. nothing      D. anything

12. A. problem      B. experience           C. difficulty       D. lesson

13. A. rest     B. whole                C. need         D. last

14. A. lonely       B. alone                C. self         D. person

15. A. company  B. group                C. society  (社会)   D. family

I lost my sight when I was four years old by falling off a box and landing on my head. Now I am thirty-two. I can vaguely(模糊地) 　1　 the brightness of sunshine and what color red is. It would be wonderful to see things again, 　2　 a disaster can do strange things to people. It happened to me the other day that I might not have come to love 　3　 as I do if I hadn’t been blind. I believe in life now. I am not sure that I would believe in it so 　4　. I don’t mean that I would prefer to go without my eyes. I 　5　 mean that the loss of 　6　 made me enjoy more of 　7　 I have now.

Life asks us to keep making 　8　 to reality. If a person is able to get ready for anything changeable his world will 　9　 more meaningful. I became blind, but I was 　10　. My parents and my teachers saw 　11　 in me－a potential(潜力) to live, you might call it－which I didn’t see, and they make me fight it out with blindness.

The hardest 　12　 I had to learn was to believe in myself. That was what I had to do at least. If I hadn’t been able to do that, I would become a chair rocker for the 　13　 of my life. When I say I believe in myself I am not talking about simply the kind of self-confidence that helps me down an unfamiliar staircase 　14　. That is part of it. But I mean something bigger than that: A belief that I could deal with anything alone; that somewhere in the 　15　 there is a special place where I can make myself fit.

1. A. imagine       B. find             C. remember     D. guess

2. A. but           B. though               C. so           D. because

3. A. myself        B. life             C. eyes         D. blindness

4. A. that          B. therefore            C. happily      D. deeply

5. A. seldom        B. just             C. hardly           D. always

6. A. them      B. it                   C. blindness        D. light

7. A. that          B. what             C. which            D. where

8. A. moments       B. encouragements       C. improvements D. changes

9. A. become        B. change               C. look         D. end

10. A. brave        B. lucky                C. sad          D. wise

11. A. something    B. everything           C. nothing      D. anything

12. A. problem      B. experience           C. difficulty       D. lesson

13. A. rest     B. whole                C. need         D. last

14. A. lonely       B. alone                C. self         D. person

15. A. company  B. group                C. society  (社会)   D. family