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________.

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 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.

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

 

One day Jack met his good friend Sue in the park. A dog was looking up at the woman beside her.
　  Jack walked up to Sue and said, “Hello, how are you? May I sit and talk with you for a moment?” “Of course, please sit down,” Sue said. Jack sat down next to Sue on the bench, and they talked quietly together. The dog continued to look up at Sue, as if( 似乎) waiting to be given some food.
　 “That's a nice dog, isn't he?” Jack said, pointing at the animal.
　 “Yes, he is. He's handsome. He's strong and healthy.”
“And hungry,” Jack said. “He hasn't taken his eyes off you. He thinks you've got some food for him.”
　 “That's true,” Sue said. “But I haven't.”
　　They both laughed and then Jack said, “Does your dog bite（咬）?”
　　“No, ”Sue said, “ He's never bitten anyone. He's always gentle and friendly.”
　　Hearing this, Jack decided to hold out his hand and touched the animal's head. Suddenly it jumped up and bit him.
　　“Hey!” Jack shouted. “You said your dog didn't bite.”
　　Sue answered in surprise, “Yeah, I did. But this is not my dog. My dog is at home.”
【小题1】Jack and Sue were ________.

A．friends	B．neighbors
C．classmates	D．brother and sister

【小题2】The dog looked at the woman because _______.

A．the woman wanted to feed him	B．the woman was friendly
C．he was strong and healthy	D．he was hungry

【小题3】Jack touched the dog because he believed _______.

A．the dog was handsome	B．Sue's dog was unfriendly
C．the dog belonged to Sue	D．Sue's dog was at home

【小题4】We can guess from the story that _______.

A．Sue gave a wrong answer	B．Jack made a mistake（错误）
C．the dog wasn’t dangerous	D．both Jack and Sue liked the dog

【小题5】Which of the Following can be the best title of the passage?

A．A Wrong Question	B．Sue's Dog
C．A pleasant talk	D．Sue's Friend

One day Jack met his good friend Sue in the park. A dog was looking up at the woman beside her.

　  Jack walked up to Sue and said, “Hello, how are you? May I sit and talk with you for a moment?” “Of course, please sit down,” Sue said. Jack sat down next to Sue on the bench, and they talked quietly together. The dog continued to look up at Sue, as if( 似乎) waiting to be given some food.

　 “That's a nice dog, isn't he?” Jack said, pointing at the animal.

　 “Yes, he is. He's handsome. He's strong and healthy.”

“And hungry,” Jack said. “He hasn't taken his eyes off you. He thinks you've got some food for him.”

　 “That's true,” Sue said. “But I haven't.”

　　They both laughed and then Jack said, “Does your dog bite（咬）?”

　　“No, ”Sue said, “ He's never bitten anyone. He's always gentle and friendly.”

　　Hearing this, Jack decided to hold out his hand and touched the animal's head. Suddenly it jumped up and bit him.

　　“Hey!” Jack shouted. “You said your dog didn't bite.”

　　Sue answered in surprise, “Yeah, I did. But this is not my dog. My dog is at home.”

1.Jack and Sue were ________.

A．friends                               B．neighbors

C．classmates                             D．brother and sister

2.The dog looked at the woman because _______.

A．the woman wanted to feed him             B．the woman was friendly

C．he was strong and healthy                 D．he was hungry

3.Jack touched the dog because he believed _______.

A．the dog was handsome                   B．Sue's dog was unfriendly

C．the dog belonged to Sue                  D．Sue's dog was at home

4.We can guess from the story that _______.

A．Sue gave a wrong answer                 B．Jack made a mistake（错误）

C．the dog wasn’t dangerous                D．both Jack and Sue liked the dog

5.Which of the Following can be the best title of the passage?

A．A Wrong Question                      B．Sue's Dog

C．A pleasant talk                          D．Sue's Friend