2. 考研
  3. A recent study of ancient clay deposits has provided new evidence________ the theory that global forest fires ignited by a meteo

A recent study of ancient clay deposits has provided new evidence________ the theory that global forest fires ignited by a meteo

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问题 A recent study of ancient clay deposits has provided new evidence________ the theory that global forest fires ignited by a meteorite impact________to the extinction of the dinosaurs and many other creatures some 65 million years ago.
选项 A、to support; contributed
B、supporting; contributed
C、to support; contributing
D、supporting; contributing
答案B
解析 本题考查非谓语动词和谓语动词。分析句子可知，本句为主从复合句，包含一个同位语从句。其中，主句结构完整，第一个空格处应填入非谓语动词作后置定语，修饰evidence。evidence和support之间是主动关系，且这项新证据已经支持了理论，故第一个空应填入现在分词supporting。that引导的同位语从句中，ignited by a meteorite impact是过去分词短语作后置定语，修饰fires，因此从句缺谓语，第二个空格处应填入动词的过去式contributed作谓语，故答案为B项。
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