It's best to stay indoors. when PM2.5 has reached dangerous levels．( )A．exactlyB．possiblyC．especiallyD．generally 题目和参考答案——青夏教育精英家教网—

题目内容

14．It's best to stay indoors，________when PM2.5 has reached dangerous levels．（　　）

A．

exactly

B．

possibly

C．

especially

D．

generally

分析最好呆在室内，特别是当pm2.5达到危险水平．

解答答案：C 考查副词词义辨析．exactly意为确切地，完全地；possibly意为可能地；especially意为尤其地，主要地，generally意为通常地，一般地，根据语境最好呆在室内，特别是当pm2.5达到危险水平．故选择C．

点评考查副词词义辨析．比较和分析选项中副词的不同含义及其用法是解答该题的关键；还要根据句中信息正确推测该句句意，时态，用副词的合适进而作出解答．

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