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精英家教網 > 高中英語 > 題目詳情

________ has been announced, we shall have our final exams next month.


  1. A.
    That
  2. B.
    As
  3. C.
    It
  4. D.
    What
B
此題考查as代替整個主句,引導非限制性定語從句的用法。如果選C項,應把從句改為:It has been announced that we shall have our final exams next month.如果選D項,此句應為:What has been announced is that we shall have our final exams next month.選項A中的that不能引導非限制性定語從句,故應排除。
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Researchers said last winter’s big snow storms that struck some Northern countries were tied to higher Arctic temperatures.

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C .The cause and the result of the melting.

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A. Higher Arctic temperatures.

B. The melting ice.

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D. Cold air bottled up in the Arctic.

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A. Last winter’s big snow-storms.

B. Winds in the Arctic region.

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