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    It will take the students half an hour the schoolwork. A. to finish do B. finish doing C. finishing to do D. to finish doing 【查看更多】

     

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         A man is going to the house of a friend. It is quite far away so he takes some sandwiches along for
    his lunch. As he goes along, he says to himself, "My friend is sure to give me a very nice meal. He is
    going to give me good wine(酒) to drink. So what's the use of these dry sandwiches. "As he says this, he
    throws them onto the ground.
          He goes on and comes to a river. The river has become very big because of the rain in the past few
    days. He cannot cross the river. He hopes there is a boat to take him over. So he waits and waits. He
    waits for a longtime. Then the sun begins to set. The man says to himself, "I cannot go to my friend's
    house today. I must go home."
         Then he starts for(出发) home. Soon he feels very hungry. He wants very much to have something
    to eat. But he doesn't have anything. Suddenly he sees some dry, dirty, hard sandwiches on the road. He
    is very happy. He picks them up and eats them all.
          Do not throw good things away. You may need them later on.
    1. It will take the man          to walk to his friend's house.
    A. a few days            
    B. a few hours
    C. a whole night        
    D. one hour or two
    2. He throws the sandwiches to the ground because        .
    A. he doesn't like them
    B. the sandwiches are dirty
    C. he thinks his friend will not like them
    D. he. is sure to have a nice meal at his friend's house
    3. In "the sun begins to set", "set"  here means         in Chinese.
    A. 落下                        
    B. 升起
    C. 变暗                        
    D. 照耀
    4. The story tells us that we         .
    A. mustn't walk a long way to visit a friend
    B. mustn't throw dry sandwiches away
    C. must throw things away when we don't need them
    D. must always keep good things
    5. He has to go back home because        .
    A. it is late              
    B. he hasn't got sandwiches
    C. it rains hard          
    D. he is hungry

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    Astronauts have already visited the moon and lived on space stations. They' ve never been to another planet, but they might visit Mars soon. The astronauts will spend about six months traveling to the planet, then about two years on the planet and about six months traveling back to the earth. They' ll be away from the earth for about three years, so they' 11 need a lot of food !

    It' s very expensive to take food into space. It costs about 120,000 dollars to carry something that weighs one kilogram. So an apple on Mars could cost 20,000 dollars! Of course, they will need to take quite a lot of food with them to feed the astronauts for three years. This amount of fresh food can not stay fresh, and is very expensive to take, so they need to find food that is not very heavy.     

    At the moment, astronauts on space stations eat dried food. It's very light, so it doesn't cost a lot of money to carry it into space. But astronauts stay healthier and happier if they eat fresh food. In the future, astronauts on Mars may grow vegetables like lettuce, spinach and carrots.

    Astronauts on Mars will probably have special machines. They' ll use these machines to change beans into foods that taste like meat or cheese because it won' t be possible to keep animals in space.

    1. The astronauts plan to go to           next.               

    A. the earth         B. the moon      C. Mars              D. space

    2. Why do the astronauts have to eat dried food?

    A. Because it is safe.            B. Because it makes them happy.    

    C. Because it is cheap to buy.     D. Because it is cheap to carry.     

    3. What may astronauts do in the future?

    A. Take enough fresh food for their journey.     

    B. Grow some fresh vegetables on Mars.

        C. Keep animals in space.

        D. Grow food on their space stations.

    4. Which of the following is TRUE according to the passage?    

    A. It will take the astronauts six. months to get to a planet.    

    B. If we take two kilograms of apples into space, it could cost 40,000 dollars.

    C. Dried food is as healthy as fresh food for astronauts in space.

        D. Astronauts will get foods that taste like meat or cheese from beans on Mars.

    5. The best tide for this passage is

        A. Food in Space                      B. An Important Planet

        C. Vegetables in Space                 D. Astronauts in the Future

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    It will take the man half an hour _____ the work.

           A. finish   B. finishing    C. to finish    D. finishes

     

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    It will take the workers half a year _____ the work.
    [     ]
    A. finish          
    B. finishing        
    C. to finish        
    D. finishes

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     It will take the workers half a year _______ building the bridge.

    A. finish   B. finishing    C. to finish    D. finishes

     

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