题目内容
9.-How can you throw the rubbish into the river?-Sorry,I won't.Everyone has the duty to stop the river from beingpolluted.
分析 -你怎么能把垃圾扔进河里?
-对不起,我不会了.每个人都有责任去阻止河流受到污染.
解答 答案:polluted
联系语境,根据答语的关键部分stop the river from being…可知此句运用了固定短语stop sb from doing sth的用法;根据being结合意义可知the river是后面非谓语动词的动作承受者,故构成被动关系,故空处缺少非谓语动词的完整形式;结合上句及答语Everyone has the duty to stop the river from being…可知此句应该是指每个人都有责任去阻止河流受到污染,也就是阻止河流被污染,所以这里应用非谓语动词 doing 的被动形式即being done;pollute的过去分词为polluted.故填写:polluted
点评 此题考查单词的正确形式.做题时主要把握好两点:一是掌握好固定短语的用法;二是在正确运用固定短语的基础上结合主语和谓语的关系确定出所填动词的正确变化形式.尤其注意being done的用法及意义.
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