What is the sky(天空)? Where is it? How high is it? What lies above it? These questions are hard to answer, aren’t they?

Is the sky blue? The sky has no color. We know that there is air around the world. When planes fly, they need air to lift their wings(翼) . Planes cannot fly very high because when they go high, the air gets thinner. If we go up about 1,200 kilometers from the earth, we find there is no air.

Perhaps(也许) we can answer some of our questions now. The sky is space(空间). In this space there is only the sun, the moon and all the stars.

1.What is the sky?

A. It’s the clouds B. It’s space.

C. It’s air D. It’s nothing

2.The sky _____

A. is blue B. is white

C. is black D. has no color

3.Planes cannot fly very high because _________.

A. the air becomes thinner

B. the flying machine is not good

C. people will be afraid if the planes fly too high

D. it is not necessary for planes to fly so high

4.If we go up about 1,200 kilometers from the earth, we find ___________.

A. there is more air B. there is less air

C.there is nothing but air D. there is no air

5.In space there is _________.

A. nothing B. air everywhere

C. everything D. only the sun ,the moon and all the stars

完成句子

1.我能喝点什么吗？

Can I have ___________ ___________ ____________?

2.我们不应该说任何人的坏话。

We should not ________ a _________ _________ __________ __________.

3.孩子们总是很乐意帮助那些需要帮助的人．

Children are always _________ _________ help _________ ________ ________.

4.我的老师上课时很有幽默感．

My teacher has a________ ____________of________ ..

5.她不小心把碗撞到地上．

She is careless to _______ the bowls ________the floor.

6.他写得和他妹妹一样的认真

He writes _________ __________ ________ his sister .

7.你要保守秘密，否则这会使他不高兴。

You should ___________ __________ ,or this will _________him ________.

Jim is _____ honest boy in my class. He bought me _____ useful book as a birthday present.

A. a, an B. an, a C. a, a D. an, an

The number of students in our school _________ 4000 and a number of them _______ good at playing pingpong.

A. is, is B are, are C. is, are D. are, is

Look! Some women are chatting _____ over there and the rest _____ looking at the pictures.

A. happy, is B. happily, is

C. happily, are D. happy, is

–With 4G mobile phones, people can even see each other as they talk.

–Really? Would you show me it, please?

A. how to use B. when to use

C. where to use D. what to use

完形填空

Charlie is twenty-three now. He a university(大学) and found work in a factory last year. It’s ________ and there are no more than fifty workers in it. And only he ________ in a university. So he looks down upon （瞧不起） his ________ . He always thinks he’s right and never agrees with ________ . He likes to say, “I’ve never made a mistake!”

But once the young man couldn’t ________ a foreign instructions （说明书）. An old worker studied it for two days and ________ Mr. White, the boss of the factory, ________ it meant. The boss asked Charlie why. He made a few excuses to say for ________ . And he didn’t agree with the old man. The boss became angry and asked, “ Is it ________ that you’ve never made a mistake?”

The young man wouldn’t make Mr. White ________ and had to say, “No, it isn’t, sir.”

Having ________ this, the workers were happy. One of them asked,"It means that you also make some mistakes!"

Charlie ________ his mind at once and said, “ I made only one mistake in my ________ !”

“When?” the boss asked in surprise.

“ Just now, sir.” Answered the young man. “When Mr. White ________ me acknowledge （承认）I was wrong!”

1.A. visited B. left C. built D. reached

2.A. small B. big C. new D. old

3.A. lived B. traveled C. arrived D. studied

4.A. parents B. teacher C. workmates D. classmates

5.A. another B. other C. the other D. others

6.A. see B. write C. understand D. read

7.A. told B. asked C. taught D. laughed at

8.A. when B. what C. how D. where

9.A. him B. himself C. them D. themselves

10.A. clever B. sure C. true D. able

11.A. sad B. sadder C. angry D. angrier

12.A. heard B. listened C. guessed D. reported

13.A. lost B. hated C. changed D. thought

14.A. life B. office C. family D. bedroom

15.A. helped B. made C. watched D. Had

缺词填空

根据短文内容和首字母提示，在下文空格处填入适当的词使短文完整。(每空一词)

How can we students keep ourselves safe? Here are some t 1. .

On your way home or to school: W 2. for the green traffic light, and look left and right before you cross the road. If you see a car coming, don’t cross until it is really safe. Dress in bright colours, so the drivers can see you c 3. .

At school: When students around you begin to push, try to hold onto something, or stay in a safer corner. If you fall down in a crowded（拥挤的）place, cover your head with b 4. hands.

When there’s a fire: Stay c 5. and leave quickly. Use a piece of wet cloth to cover your mouth and nose so that you don’t take in s 6. . If your clothes catch fire, please drop to the ground and roll from side to side to put out the fire.

For eating: Wash fruit like apples or g 7. carefully before you eat them. Check the expiration dates（保质期）and if your food looks or smells t 8. , don’t eat it.

For riding on the escalator（自动扶梯）: Hold onto the handrails（扶手）. It is d 9. to run up and down on them. You may fall down because escalator steps（台阶）are not fit for r 10. .

Every student takes part in __________ activity after school.

A. a B. an C. the D./

Don’t __________Chinese in an English class.

A. speak B. say C. talk D. tell