网址：http://m.1010jiajiao.com/timu3_id_2683408[举报]
Is the sky blue? The sky has no colour. We know that there is air around the world. When planes fly，they need air to lift their wings(翅膀).Planes cannot fly very high because when they go higher，the air gets thinner. If we go up about l 200 kilometers from the earth，we find there is no air.
Perhaps we can answer some of our questions now. The sky is space. In this space there is
only the sun，the moon and all the stars.
根据短文内容选择正确答案:
1.What is the sky?( )
A. It’s the clouds. B. It's space.
C. It’s air. D. It’s nothing.
2.They sky________.( )
A. is blue B. is white
C. is black D. has no colour
3.A plane 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 l 200 kilometers from the earth，we find________.( )
A. there is more air B. there is 1ess 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 stars
查看习题详情和答案>>
"Red!" says Jack, "It's the colour of fire."
"No, yellow is prettier than red because it's the colour of the sun." cries Joy.
"My favourite is blue," says Jim," the colour of the summer sky."
"Green! It's the colour of grass and leaves and trees." Harry says.
"Well, I like orange," says Alice.
Each of them has their favourite colour, no two of them is the same. A storm (暴风雨) breaks (停), and
then a rainbow (彩虹) is up there in the sky. "Oh look, how lovely!" cries Jack, "all colours are beautiful and
they need each other just like we do."
B. blue
C. yellow
D. red
B. cloud
C. rainbow
D. rain
B. rainbow
C. sky
D. storm
aren't they?
Is the sky blue? The sky has no colour. We know that there is air around the world. When the planes fly,
they need air to lift their wings. Planes can not fly very high because when they go higher, the air gets thinner (薄的). If we go up about 1,200 kilometers from the earth. We find there is no air.
Perhaps we can answer some of our questions now. The sky is space (太空). In the sky there is only the
son, the moon and all the stars.
B. It's space.
C. It's air.
D. It's nothing.
B. is white
C. is black
D. has no colour
B. the air becomes thicker.
C. the flying machine is not good.
D. the flying machine is bad.
B. there is air
C. there is nothing but air
D. there is little air.
B. air everywhere
C. anything
D. only the sun, the moon and all the stars.
2. What colour is a banana?
3. What colour is the snow?
4. What colour are your shoes?
5. What's your favourite colour?
Many people say that they have seen flying saucers（飞碟）in the sky. 31 can these things be ?
Some people think that they are spaceships from other planets. Doctors 32 that perhaps they are only a weakness of the eyes. It is possible that they are our own planes 33 very high. Or are they birds with the sun’s light on them?
But some people say that they have seen them 34 . They have seen beings（人）get off them and walk around. They have 35 to those beings, sometimes in English. People have 36 photos of flying saucers and of these beings. We have seen the photos, but sometimes the people had to take them in a 37 . Children have seen flying saucers, and even dogs have seen them. Perhaps we do not think that the 38 of children, or dogs are important. But school-teachers have 39 seen them and Air Force officers and 40 policemen. Must we not listen to these people?
1.A. How B. What C. Which D. Where
2.A. say B. prove C. know D. understand
3.A. rising B. flying C. risen D. flown
4.A. fly B. turn C. land D. move
5.A. flown B. gone C. come D. spoken
6.A. received B. bought C. taken D. sent
7.A. horse B. hurry C. colour D. way
8.A. opinions B. discussions C. suggestions D. needs
9.A. often B. hardly C. also D. still
10.A. yet B. even C. so D. then
查看习题详情和答案>>