Do you know why different animals or insects have their special colors? Colors are used mainly to protect themselves.

Why can’t some birds easily catch locusts（蝗虫）? 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 autumn comes, locusts change to the same brown color as crops have. Some other insects with different colors from plants are easily found and eaten by others. So they have to hide themselves for lives in the day 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 can’t be easily seen by hunters. This is because they have the colors much like the trees.

Have you ever noticed an even more strange thing? A kind of fish in the sea can send out black liquid when it faces danger. While the liquid spreads over, its enemies can’t find it. And it quickly swims away. So it has lived up to now though it is not strong at all.

1. From the article we learn that locusts 　　　　　　　　　.

A. are dangerous to their enemies           B. are easily found by birds

C. change their colors to protect themselves   D. are small animals

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

A. They have to move quietly.

B. They hide themselves in the day and appear at night.

C. They have the colors much like their enemies.

D. They run away quickly.

3. Bears and lions can keep safe because 　　　　　　　　　.

A. they live in forests                  B. they like brown and grey colors

C. they move quietly　                   D. they have the colors similar to the trees

4.What does the word “liquid” mean in the last paragraph?

A. 气体          B. 固体　       C. 液体　       D. 水蒸气

5. Which is the best title for this passage?

A. The Main Use of Colors for Animals and Insects

B. Colors of Different Animals and Insects

C. The Change of Colors for Animals and Insects

D. The Change of Different Animals and Plants

Maybe everyone likes dogs, and almost everyone likes to read stories about dogs.

　　I have a friend. He has a large police dog named Jack. Police dogs are very clever. Every Sunday afternoon my friend takes Jack for a long walk in the park. Jack likes these long walks very much.

　　One Sunday afternoon a young man came to visit my friend. He stayed a long time. He talked and talked. Soon it was time for my friend to take Jack for his walk. But the visitor still stayed. Jack became very worried. He walked around the room several times and then sat down in front of the visitor and looked at him. But the visitor paid no attention to Jack. He went on talking. At last Jack got angry. He went out of the room and came back a few minutes later. He sat down again in front of the visitor, but this time he took the visitor's hat in his mouth. The visitor saw it and was surprised. He laughed and left.

1.--The young visitor stayed a long time, didn't he?

　　--_____.

　　A. Yes, he didn't 　　　　　　　　B. No, he didn't 

　　C. Yes, he did  　　　　　　　　　 D. No, he did

2.Jack became worried because _____.

　　A. he wanted to go out for a walk      

　　B. he wanted to play with him

　　C. he didn't know the young man    

　　D. he wanted to eat something

3.Jack sat down in front of the visitor because _____.

　　A. he wanted the visitor to talk to him

　　B. he wanted to talk with the young man

　　C. he wanted to show the visitor how clever he is

　　D. he wanted the visitor to leave

4.The visitor went on talking and _____.

　　A. he paid no attention to his hat     

　　B. he paid no attention to Jack

　　C. he didn't know that his hat was taken away by Jack

　　D. he didn't like Jack

5.Jack went out of the room, but came back with _____ in his mouth.

　　A. food

　　B. nothing

　　C. something

　　D. the visitor's hat

从A.B.C.D中找出并能替换划线部分的选项

1.Mum has a bad headache. We have to send for the doctor at once.

A. ask the doctor to come　　　　 B. find the doctor by ourselves

C. send the doctor away　　　　　 D. go to the doctor's

2.I have just come across a beautiful poem in this book.

A. read aloud???? B. written down???? C. discovered????? D. went through

3.The fire broke out at 5 o’clock early in the morning.

A. stopped?????? ????????????? B. started?????????? C. opened???? ????????????? D. closed

4.They’ll be here in ten minutes. Meanwhile, we’ll have some coffee.

A. after all???????? B. at the same time?? C. for a minute?? ????????????? D. before long

5.You will find a basket filled with flowers in your room.

A. had?? ??????? B. covered??????????? C. was full????? D. full of

Jack is a twenty-year-old young man. Two years ago, when he finished middle school, he found work in a shop. Usually he works until ten o'clock in the evening. He is very tired when he gets home. After a quick supper he goes to bed and soon falls asleep. His grandma who lives downstairs is satisfied with (满意) him.

One day, on his way home, he met Mary. They were both happy. He asked the girl to his house, she agreed happily. He bought some fruit and drinks for her. And they talked about their school, teachers, classmates and their future . They talked for a long time.

“Have a look at your watch, please,” said the girl. “What time is it now?”

　　“Sorry, something is wrong with my watch,” said Jack. “Where's yours?”

　　“I left it at home.”

　　Jack thought for a moment and found a way. He began to stamp his foot on the floor, “Bang! Bang! Bang!”

　　The sound woke his grandma up. The old woman shouted downstairs, “It's twelve o'clock in the night, Jack. Why are you still jumping upstairs?”

1.Jack was ________ when he finished middle school.

　　A. sixteen　        B. eighteen　               C. twenty　         D. fifteen

2.The old woman is satisfied with Jack because ________.

　　A. he's her grandson　　                    B. he's clever

　　C. he can keep quiet　　                    D. he gets home on time

3.From the story, we can know that Mary is Jack's ________.

　　A. classmate　　        B. colleague (同事)　　 C. aunt      　　  D. wife

4.The word “stamp” in the story means ______ in Chinese.

　　A. 盖印　　         B. 跺　　               C. 贴邮票　　   D. 承认

5.Jack stamped his foot on the floor in order (为了) ________.

　　A. to wake his grandma up

　　B. to make his grandma angry

　　C. that his grandma was going to tell him the time

D. that his grandma was going to buy him a watch

In almost every big university in the United States, football is a favorite sport. American football is not like soccer.

Players sometimes kick the ball, but they also throw (扔) the ball and run with it. They try to take it to the other end of the field; they have four chances to move the ball ten yards (码). They can carry it or throw it. If they move it to the end of the field, they can receive six points. This is called a touch-down (持球触地).

It’s difficult to move the ball. Eleven men on the other team try to stop the man who has the ball. If the man does not move the ball ten yards, his team kicks the ball to the other team.

Thousands of people come to watch it when there is a football game. They all yell for their favorite team. They dance and jump while they are yelling. Each team plays ten or eleven games each season. The football season usually begins in September and ends in November. If a team is very good, it may play another game after the season ends. The best teams play again on January lst. Many people go to see these games and many others watch them on TV.

1.In America, football players can _______.

A. only kick the ball????????????? B. only throw the ball

C. only carry the ball????????????? D. kick, throw and carry the ball

2.There are _______ on each team.

A. ten players????????????? B. eleven players????????????? C. twelve players????????????? D. thirteen players

3.If the man does not move the ball ten yards, his team has to _______.

A. go home　B. carry the ball ten yards

C. run with it　D. kick the ball to the other team

4.The best teams play again _______.

A. on Christmas????????????? B. after the season ends　C. on New Year’s Day　D. on Sunday

5.The underlined word “yell” in the passage means “_______”.

A. shout (喊) loudly????????????? B. jump????????????? C. talk loudly????????????? ????????????? D. sing