The story does not say this, but from what we have read, we can tell that ______.

试卷相关题目

• 1Some space foods are carried in _______.

  A.water guns

  B.lunch boxes

  C.closed bags

  D.crumbs

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• 2This selection says that the first wheel may have been a ______.

  A.round piece of stone

  B.heavy log

  C.piece of metal

  D.slice of log

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• 3The wheel was probably invented by ______.

  A.a group of early hunters

  B.the first men on earth

  C.a great prehistoric thinker

  D.the man who made the first cart

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• 4It was remarkable of man to invent the wheel because _______.

  A.it led to many other inventions

  B.man had no use for it then

  C.there were no wheels in nature

  D.all of the above

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• 5The wheel is called _______.

  A.simple

  B.complicated

  C.strange

  D.unusual

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• 6Why can’t astronauts drink water from cups、

  A.The water would come from the open cups.

  B.The water would spill all over their food.

  C.Crambs would float in the cups.

  D.The cups would float in the air.

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• 7The main idea of the whole story is that _______.

  A.there is more food and water in space than on earth

  B.eating and drinking in space is a special problem

  C.astronauts can never eat or drink in a spaceship

  D.there is no food or water in a spaceship

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• 8Which of the following does the story lead you to believe、

  A.Food for astronauts must be made in a special way.

  B.All meat on earth comes in bite-sized pieces.

  C.Astronauts will only eat cakes made from crambs.

  D.Astronauts have to go hungry in a spaceship.

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• 9How much energy given off by the sun reaches the earth、

  A.100% but indirectly.

  B.5%.

  C.50%.

  D.only a very tiny amount.

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• 10The reason why all the solar energy falling on the earth can’t be utilized is that ______.

  A.only a very small part is available

  B.the sun is too distant from the earth

  C.it takes thousands of years for this energy to be stored up in coal and oil

  D.our scientific knowledge is not sufficient

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