帮忙解释为什么选哪个选项_______ the polluted air is dangerous for our health.A.Exposing B.Exposed C.Being exposed D To expose
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帮忙解释为什么选哪个选项_______ the polluted air is dangerous for our health.A.Exposing B.Exposed C.Being exposed D To expose
帮忙解释为什么选哪个选项
_______ the polluted air is dangerous for our health.
A.Exposing B.Exposed
C.Being exposed D To expose
帮忙解释为什么选哪个选项_______ the polluted air is dangerous for our health.A.Exposing B.Exposed C.Being exposed D To expose
C.表被动
D 不定式做主语
选c
“使...暴露于...(环境)之中,使...和...接触”,常用被动语态:be exposed to sth
如:Being exposed to sunsunshine for too much time will do harm to one's skin.
长时间日晒会对皮肤对不利。
选D ,To expose 使处于……作用下
动词不定时作主语,改为这样应该好理解一点:it is dangerous for our health to expose the polluted air 。此句为it作形式主语,题中只是把主语还原了