2. 外语
  3. Scientists are searching for the oldest tree ______ because it can teach them a great deal about many issues related with climat

Scientists are searching for the oldest tree ______ because it can teach them a great deal about many issues related with climat

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问题 Scientists are searching for the oldest tree ______ because it can teach them a great deal about many issues related with climate change.
选项 A、lively
B、alive
C、living
D、live
答案B
解析 同根词辨析。从句子成分上分析，主句是一个主谓宾结构，because引导的原因状语从句主句中scientists为主语，are searching for作谓语，tree作宾语，the oldest和空格处的形容词分别作tree的前置和后置定语。选项中，living“活着的”，强调说明“尚在人间，健在”，可用来指人或物，作定语或表语；lively“活泼的”，活跃的，充满生气的”，可作定语、表语或宾补，既可指人，又可指物；alive意为“活着的”，侧重说明生与死之间的界限，既可指人，也可指物，可用来作表语、后置定语或宾语补足语。选项中，是形容词，又能作后置定语修饰tree的只有B项。
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