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Our first trips into space were very short. They were in the 1960s. There was a “space race” 1     Russia and America. They both wanted to put a man on the moon 2      And the Americans won. Russia built the   Mir space station in 1986. Astronauts and scientists lived on Mir for many 3      The Russians allowed  other countries，including the USA，to 4      astronauts to live and work on Mir. Mike and Jerry both worked on Mir.

Mike ： When I was five，I practised 5       , jumping off chairs and trying to fly!I’m very 6      to be an astronaut. 7      of people try,and only a few are successful.

Jerry： Well,at first you may get sick for a few days. Your body gets weaker,8      you have to do exercise every day. The food is not very 9      On our last flight,we 10      chocolate up,and really wanted some!

1.        2.        3.        4.        5.       

6.        7.        8.        9.        10.       

 A ： Yesterday I read a book.

B： 1.       

A： It’s about a strange travel to Mars. Three astronauts have visited Mars.

B ： Great. 2.       

A: They went there by spaceship.

B： 3.       

A: It took them about eight months.

B ： That’s really a long way. Can we live there?

A： 4.        Because there is no

water there. And it’s really very cold. The lowest

temperature can reach 140T!below zero. But

maybe people can spend their holidays there in the future.

B ： That sounds exciting. 5.       

A： Fly to Mars? I think your dream will come true.

5. A wonderful TV play        (show) tonight.

4. The satellites are sending some information to          (we).

3. They are trying        (go) across the bridge to finish their tasks.

2. The sun and its planets          (call) the solar system.

1. There are        ( million ) of birds in the sky.

(   ) 5. The 31 th Olympic Games          in Brazil soon.

A. held    B. will be held

C. were held    D. have been held

(   ) 4. 一But where are the books?

—Don’t worry. They          here next Friday.

A. have sent    B. will be sent

C. are sending    D. have been sent

(   ) 3. —It’s difficult for the village children to cross

the river for school.

—I think a bridge        over the river.

A. was built         B. is being built

C. has been built    D. should be built