The purpose for turning night into day is to ________.

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• 1The reflected light should sweep slowly along the surface of the earth because the mirrors ________.

  A.would be operated by solar-powered engines

  B.would orbit thousands of miles high to catch the sun’s light

  C.could move around the earth at the same speed as the earth turns on its axis

  D.could be made to adjust their angles

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• 2Which of the following is NOT TRUE of the mirrors、

  A.They would be made of plastic and coated with aluminum.

  B.They could be launched directly into space.

  C.They would stay in the same position over the earth.

  D.They could reflect sunlight to a large area on the earth.

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• 3The word “colossal” in Line 3 most likely means ________.

  A.nuclear-powered

  B.orbiting

  C.giant

  D.spinning

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• 4The Voice can translate ________.

  A.from German into any of the other four languages mentioned

  B.from and into English by using the same cartridges

  C.between any two of the above-mentioned languages

  D.from English into any of the other four languages or the other way round

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• 5Which of the following is NOT TRUE、

  A.The voice is an invention of an electronics company.

  B.The voice is a hand-held translator.

  C.The voice is new product in wide use.

  D.The voice is mainly a microcomputer.

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• 6The writer of this passage ________.

  A.gives an objective account of the mirrors

  B.seems to be much worried about the effect of the mirrors

  C.is in favour of the wide use of the mirrors

  D.suggests that artificial daylight is harmful to living being

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• 7This passage is most probably ________.

  A.a news item

  B.part of an introduction of a book

  C.part of a lecture

  D.an advertisement

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• 8What is most important to agriculture is ________.

  A.the amount of food it produces

  B.the per capital income of farmers

  C.its industrial performance

  D.the production of investment goods

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• 9The word “this” in Line 4 refers to ________.

  A.the provision of food and raw materials

  B.the productivity of farmers

  C.the production of investment goods

  D.the economy as a whole

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• 10The performance of farmers essentially determines ________.

  A.the size of the working population

  B.the organization of agriculture

  C.the market structure

  D.the general development of economy

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