On the basis of their models, scientists are of the opinion that ________.

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• 1Although the fuel consumption is greater in the northern hemisphere, temperatures there seem to be falling. This is ________.

  A.mainly because the levels of carbon dioxide are rising

  B.possible because the ice caps in the poles are melting

  C.exclusively due to the effect of the inertia of the earth’s climate

  D.partly due to variations in the output of solar energy

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• 2The article was written to explain ________.

  A.the greenhouse effect

  B.the solar effects on the earth

  C.the models of solar-weather interactions

  D.the causes affecting weather

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• 3It can be concluded that a concentration of carbon dioxide in the atmosphere would ________.

  A.prevent the sun’s rays from reaching the earth’s surface

  B.mean a warming up in the Arctic

  C.account for great changes in the climate in the northern hemisphere

  D.raise the temperature of the earth’s surface

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• 4In the writer’s opinion, ________.

  A.strict traffic regulations are badly needed

  B.drivers should apply road politeness properly

  C.rude drivers should be punished

  D.drivers should avoid traffic jams

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• 5Experts have long pointed out that in the face of car-ownership explosion, ________.

  A.road users should make more sacrifice

  B.drivers should be ready to yield to each other

  C.drivers should have more communication among themselves

  D.drivers will suffer great loss if they pay no respect to others

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• 6If the assumption about the delay of a new Ice Age is correct, ________.

  A.the best way to overcome the cooling effect would be to burn more fuels

  B.ice would soon cover the northern hemisphere

  C.the increased levels of carbon dioxide in the atmosphere could warm up the earth even more quickly

  D.the greenhouse effect could work to the advantage of the earth

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• 7According to the author, recent Olympic Games have ________.

  A.created goodwill between the nations

  B.bred only false national pride

  C.barely showed any international friendship

  D.led to more and more misunderstanding and hatred

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• 8What did the manager mean by saying, “... Hockey and the International Hockey Federation are finished”、

  A.His team would no longer take part in international games.

  B.Hockey and the Federation are both ruined by the unfair decisions.

  C.There should be no more hockey matches organized by the Federation.

  D.The Federation should be dissolved.

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• 9The basketball example implied that ________.

  A.too much patriotism was displayed in the incident

  B.the announcement to prolong the match was wrong

  C.the appeal jury was too hesitant in making the decision

  D.the American team was right in rejecting the silver medals

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• 10The author gives the two examples in Paragraphs 2 and 3 to show ________.

  A.how false national pride led to undesirable incidents in international games

  B.that sportsmen have been more obedient than they used to be

  C.that competitiveness in the games discourages international friendship

  D.that unfair decisions are common in Olympic Games

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