摘要: A air B strength C. energy D petrol

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What is the sky? Where is it? How high is it? What lies above it?

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

 

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  阅读理解

    In England winter isn't very cold and summer isn't very hot. Why is this?

    Because England is an island(岛) country. In winter the sea brings warm air to England. In summer the sea is cooler than the land.

  The winds from the sea bring cool air to England.

    The winds blow(吹)over England all the year. They bring rain to England all the year. England has a lot of rain. There is more rain   in the west of England than in the east of the England.

  根据短文内容,选择最恰当的答案。

  1. In England, summer ______.        

[  ]

   A. isn't very hot    B. it very hot

   C. isn't very cold    D. is very cold

  2. In winter the sea brings ______.    

[  ]

   A. cold air to the Land    B. cool air to England

   C. warm air to England    D. warm air

  3. In summer the sea is ______.      

[  ]

   A. cooler than the land   B. warmer than land

   C. cooler than England   D. warmer than England

  4. The winds blow over _______.      

[  ]

   A. the sea     B. England all the year

   C. to bring rain  D. a lot of rain

  5. There is more rain ______.        

[  ]

   A. in England than in land

   B. in the sea than in land

   C. in the east of England than in the west of the England

   D. in the west of England than in the east of the England

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