21. In recent years _____ global warming is becoming ____concern for people all over the world.

试卷相关题目

• 1________ Mr. Chen is waiting outside to speak to you. He appears to be quite ___ important person.

  A./, an

  B.A, an

  C.The, the

  D.The, /

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• 2It is said that _________ mobile telephone was invented not very long ago.

  A.a

  B.the

  C.one

  D.不填

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• 3Our teacher told us that _______ moon moves around ______ earth, and ________ earth circles________ sun.

  A.a, a, a, a

  B.an, an, an, an

  C.the, the, the, the

  D./, /, /, /

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• 4Without_____ thorough understanding of China's specific conditions, you can't have ____ say over the only-child policy.

  A.a, the

  B.the, a

  C.a, a

  D.the, the

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• 5As we know, Stephen Hawing is ____ man of great achievement, who is considered one of ____ greatest scientists of our time.

  A.the, the

  B.the, ∕

  C.a, the

  D.a, ∕

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• 6The foreigners from ____ United States paid _____ visit to the Bird Nest Stadium last week.

  A./; the

  B./; a

  C.the; a

  D.the; /

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• 7 Feb. 14,2010, to most Chinese, is not just_______day devoted to people in love, but also ______ day to express their care to their family and friends.

  A.a; a

  B.a; the

  C.the; the

  D.the; a

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• 8You can try to guess the meaning of ______ words you don't know from ______ passage．

  A.the; 不填

  B.the; the

  C.不填;不填

  D.不填; the

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• 9Beijing is _________ capital of Chian, _________ everybody knows.

  A.the, as

  B.a. which

  C./, like

  D.the, which

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• 10We were sad to hear the news that _______ eight Chinese peacekeeping policemen were killed in ______ Haiti earthquake.   

  A.the; /

  B./; the

  C.the; a

  D.an; the

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