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
根据短文内容，判断正（T）误(F)
Do you remember your dreams? Do people have the same dreams? Why do we dream? There are many questions about dreams. We dream during the REM (rapid (快的) eye movement) stage (阶段) of sleep. We have about five periods of REM sleep during the night. The first REM cycle (周期) lasts about 10 minutes. As the night goes on, the REM cycle gets longer. By early morning, the REM cycle can last up to 90 minutes. Usually, it is in this last REM cycle that we remember our dreams.
Dreams change as people age. People may have several dreams each night. Some are like films and usually in color. They come to us over and over again. That may be because the dreamer is worrying about something and trying to find the answer. Sometimes we wake up with a good feeling from a dream. But often we can’t remember the dreams clearly.
It is reported that too much dreaming is bad for our health. The more we sleep, the longer we dream. The mind is hard at work. That is why we may have a long sleep and still feel tired when we wake up.
1.We dream during the REM stage of sleep.
2.Children aged eight or nine have the same dreams as people aged thirty.
3.All the dreams are usually in color like films.
4.The longer we dream, the better we sleep.
5.The passage above is talking about dreaming.
完型填空
Many teenagers feel that the most important people in their lives are their friends. They believe their family members. especially their___, don’t know them ___their friends. In big families, it is quite often for brothers and sisters ___with eache other and then they can only go to their friends for _____
It is very important for teenagers to have one good friend or a circle of friends. Even when they are not with their friends, they usually spend ___time talking among themselves ___the phon. This conversation is very important in children’s growing up. ____friends can discuss -___to say to their family members.______, parents often try ____their children’s friends for them. Some parents don’t agree they meet their good friends. The question of “choice” is an interesting one .Have you ever thought of the following question?
Who chooses your friends?
Do you choose your friends or do your friends choose you?
Have you got a good friend your parents don’t like?
Your answers are welcome.
1.A. brother B. sister C. parents D. uncles
2.A. as well B. as well as C. as good as D. as better as
3.A. to fight B. fighting C. fight D. fights
4.A. advices B. many advices C. an advice D. some advice
5.A. too many B. too much C. enough D. a lot of
6.A. in B. with C. on D. for
7.A. Although B. Though C. Because D. So
8.A. nothing difficult B. something difficultC. important something D. interesting everything
9.A. Also B. However C. Then D. And
10.A. to choose B. chosen C. choosing D. will choose.
_____, I practice speaking English in the park. The air there is very fresh.
A.Sometime B.Some times
C.At times D.Some time
The winter holiday will begin soon. John _____ to stay with us.
A.will be coming B.comes
C.came D.is coming
The little girl _____ go to school, though she didn’t want to go there.
A.wanted to B.was forced to
C.is forced to D.liked to
