摘要: A cook will be immediately fired if he is found in the kitchen. A. smoke B. smoking C. to smoke D. smoked

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When we talk about the universe, we____1____ the earth, the sun, the moon and the stars, and the space ____2____ them. Scientists have always wanted to know more about the universe.

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 ( )Aknow      Bmean      Csay        Dpoint

2 ( )Awithout    Bbehind     Cbetween     Dover

3 ( )Abefore      Bafter      Clater        Dago

4 ( )Ahow long   Bhow heavy    Chow wide      Dhow big

5 ( )AqSo       BBecause      CAfter      DBut

6 ( )Amen     Bsatellites     Cspaceships      Dnews

7 ( )Agets     Breaches      Carrives       Dstays

8 ( )Aair      Bspace      Ccloud        Dsmoke

9 ( )AWhere      BWhen     CHow        DWhat

10 ( )Acook      Bcold      Chot          Dwarm

11 ( )Ato run out of   Brun out of    Cto fly up into     Dfly up into

12 ( )Ahave been to   Bhave gone to   Chave been in   Dhave gone in

13 ( )Avisited      Bflown     Crisen        Dfallen

14 ( )Acan      Bmay      Cneed          Dwould

15 ( )Aany      Bsome        Ca         Dthe

 

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