Years ____3____ they knew many things about the moon. They knew ____4____ it was and how far away it was from the earth. ____5____ they wanted to know more about it. They thought the best way was to send ____6____ to the moon. In 1969, two Americans landed on the moon.

The moon is about 384000 kilometres away from the earth. A plane cannot fly to the moon because the air ____7____ only 240 kilometres away from the earth, But something can fly even when there is no ____8____. That is a rocket(火箭).

____9____ does a rocket, fly? There is gas(气体)in it.When the gas is made very ____10____ inside the rocket, it will rush out of the end of rocket, so it can make the rocket ____11____ the sky.

Rockets can fly far out into space. Rockets with people in them ____12____ the moon. Several rockets without people in them have ____13____ to another planet(行星)much farther away than the moon. One day rockets ____14____ be able to go to ____15____ place in space.

1． (　)A．know　　    B．mean　　　　  C．say　　　　    D．point

2． (　)A．without　　  B．behind　　　　 C．between　　　　 D．over

3． (　)A．before　　    B．after　　　　  C．later　　　　    D．ago

4． (　)A．how long　　 B．how heavy　　  C．how wide　　    D．how big

5． (　)A．
q


So　　　　   B．Because　　    C．After　　　　  D．But

6． (　)A．men　　　　 B．satellites　　   C．spaceships　　    D．news

7． (　)A．gets 　　　　B．reaches　　    C．arrives　　　　   D．stays

8． (　)A．air　　　　  B．space　　　　  C．cloud　　　　    D．smoke

9． (　)A．Where　　    B．When　　　　 C．How　　　　    D．What

10． (　)A．cook　　    B．cold　　　　  C．hot　　　　　　    D．warm

11． (　)A．to run out of   B．run out of    C．to fly up into　　   D．fly up into

12． (　)A．have been to   B．have gone to   C．have been in　　 D．have gone in

13． (　)A．visited　　    B．flown　　　　 C．risen　　　　    D．fallen

14． (　)A．can　　　　  B．may　　    C．need　　   　　   D．would

15． (　)A．any　　　　  B．some　　　　    C．a　　　　　　   D．the

　　Scientists have always wanted to know more about the universe. Years ago they knew many things about moon. They knew how big it was and how far away it was from the earth. But they wanted to know more about it. They thought the best way was to send men to the moon. The moon is about 384 000 kilometers away from the earth. A plane cannot fly to the moon because the air reaches only 240 kilometers away form the earth. But something can fly even when there is no air, that is a rocket (火箭) .

　　How does a rocket fly? There is gas (气体) in the rocket. When the gas is made very hot inside the rocket, it will rush out of the end of the rocket and make the rocket fly up into the sky. Rockets can fly out into space. Rockets with men in them have been to the moon. Several rockets without men in them have flied to another planet (行星) much farther away. One day rockets may be able to go to any place in space.

(1) Scientists have known ________ the moon is.

[　　]

(2) The earth is about 384 000 kilometers away form the ________.

[　　]

(3) A plane cannot fly to the moon because ________.

[　　]

A．there is no air above 240 kilometers away from the earth

B．there is no gas in the plane

C．the plane is not strong enough

D．the plane must be driven by a man

(4) The hot gas in the rocket is used for ________.

[　　]

A．keeping the air in the rocket fresh

B．keeping the men in the rocket warm

C．making the rocket fly up

D．cooking food for the men

(5) Several rockets without men in them have flown to ________.

[　　]

A．the stars

B．the satellites of the sun

C．the sun

D．another satellite of the sun

阅读理解

　　Scientists have always wanted to know more about the universe (宇宙) . Years ago they knew many things about the moon . They knew how big it was and how far away it was from the earth . but they wanted to know more about it . They thought the best way was to send men to the moon.

　　The moon is about 384,000 kilometres away from the earth . A plane can't fly to the moon because the air reaches only 240 kilometres away from the earth . But something can fly even when there is no air. That is a rocket . How does a rocket fly? There is gas (气体) in the rocket . When the gas is made very hot inside the rocket, it will rush out of the end of the rocket, so it can make the rocket fly up into the sky .

　　Rockets can fly far into the space . Rockets with men in them have been to the moon . Several rockets without men in them have flown to another planet (行星) much farther away than the moon . One day rockets may be able to go to any place in space .

(1) Scientists have known ______ the moon is .

[　　]

(2) The earth is about 384,000 kilometres away from the ________.

[　　]

(3) A plane can't fly to the moon because ________.

[　　]

A．there is no air above 240 kilometres away from the earth

B．there is no gas in the plane

C．the plane is not strong enough

D．the plane must be driven by a man

(4) The hot gas in the rocket is used for ________.

[　　]

A．keeping the air in the rocket fresh

B．keeping the men in the rocket warm

C．making the rocket fly up

D．cooking food for the men

(5) Several rockets without men in them have flown to ________.

[　　]

A．the stars

B．the satellites of the sun

C．the sun

D．another planet of the sun

阅读理解

　　Scientists have always wanted to know more about the universe (宇宙) . Years ago they knew many things about the moon . They knew how big it was and how far away it was from the earth . but they wanted to know more about it . They thought the best way was to send men to the moon.

　　The moon is about 384,000 kilometres away from the earth . A plane can't fly to the moon because the air reaches only 240 kilometres away from the earth . But something can fly even when there is no air. That is a rocket . How does a rocket fly? There is gas (气体) in the rocket . When the gas is made very hot inside the rocket, it will rush out of the end of the rocket, so it can make the rocket fly up into the sky .

　　Rockets can fly far into the space . Rockets with men in them have been to the moon . Several rockets without men in them have flown to another planet (行星) much farther away than the moon . One day rockets may be able to go to any place in space .

1．Scientists have known ______ the moon is .

[　　]

2．The earth is about 384,000 kilometres away from the ________.

[　　]

3．A plane can't fly to the moon because ________.

[　　]

A．there is no air above 240 kilometres away from the earth

B．there is no gas in the plane

C．the plane is not strong enough

D．the plane must be driven by a man

4．The hot gas in the rocket is used for ________.

[　　]

A．keeping the air in the rocket fresh

B．keeping the men in the rocket warm

C．making the rocket fly up

D．cooking food for the men

5．Several rockets without men in them have flown to ________.

[　　]

A．the stars

B．the satellites of the sun

C．the sun

D．another planet of the sun