If you go into the forest with your friends, stay with them. If you don’t, you may get lost(迷路). If you get lost, this is what you should do. Sit down and stay where you are. Don’t try to find your friends---let them find you. You can help them find you by staying in one place. There is another way to help your friends or other people to find you. You can shout or whistle(吹口哨)three times. Stop. Then shout or whistle three times again. Any signal(信号)given three times is a call for help.

Keep shouting or whistling. Always three times together. When people hear you, they will know that you are not just making a noise for fun. They will let you know that they have heard our signal. They will give you two shouts or two whistles. When a signal is given twice, it is an answer to a call for help.

If you don’t think that you will get help before night comes, try to make a little house with branches(树枝). Make yourself a bed with leaves and grass.

When you need some water, you have to leave your little house to look for it. Don’t just walk away. Pick off small branches and drop(丢)them when you walk to go back again easily. When you are lost, the most important thing to do is to stay in one place.

1.If you get lost in the forest, you should _________.

A. try to find your friends

B. stay in one place and give signals

C. walk around the forest

D. shout as loudly as possible(尽量大声)

2.Which signal is a call for help?

A. Shouting here and there.

B. crying twice.

C. Shouting or whistling three times together.

D. Whistling everywhere in the forest.

3.When you hear two shouts or two whistles, you know that _________.

A. someone is afraid of an animal

B. people will come to help you

C. someone needs help

D. something terrible(恐怖)will happen

4.What’s the meaning of the underlined sentence(划线句子)?

A. Leave branches to find your way back.

B. Pick off branches to make another house.

C. Use branches to make a bed.

D. Drop branches to look for water.

5.The main(主要的)idea of the passage is __________.

A. how to travel in the forest

B. how to spend the night in the forest

C. what you should do if you want to get some water

D. what you should do if you are lost in the forest

Of all the stars the sun is the nearest to the earth. Millions of other stars are even bigger and brighter than the sun. They look small only because they are much farther away. You can’t see them in the daytime. But if you go out at night, you’ll be able to see thousands of them.

The earth is one of the sun’s planets, and the moon is our nearest neighbor in space. Men have visited it already. No man has traveled farther than the moon, but spaceship(宇宙飞船) without people have reached other planets.

Many countries have sent up man-made satellites(人造卫星) to circle the earth. With their help, people have done much research in many fields of science.

Our country sometimes uses man-made satellites to send and receive TV programs. This has helped the people of China and other countries to understand each other better.

根据材料内容选择最佳答案。

1.The sun looks bigger and brighter than other stars because ________.

A. we can’t see millions of them.

B. it is the nearest one to the earth

C. it is much farther away from other stars.

2.Our nearest neighbor of the earth in space is _______.

A. the earth B. the moon C. the spaceship

3.Man-made satellites can help us _______.

A. to visit the stars

B. to get to other planets

C. to do much research

4.Our country has sent up man-made satellites _______.

A. to travel to other stars

B. to circle the moon.

C. to sent and receive TV programs.

5.Which is true in the following sentences ?

A. The sun has only one planet in the place.

B. We can’t live on the earth.

C. Man-made satellites have helped the people of China and other countries to understand each other.

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