题目内容
7.We can keep our city clean by _______ rubbish everywhere.( )| A. | throwing | B. | to throw | C. | not throwing | D. | not to throw |
分析 我们可以通过不到处扔垃圾来保持城市清洁.
解答 答案:C.
本题考查非谓语动词的用法.根据语境推测句意是"我们可以通过不到处扔垃圾来保持城市清洁."由设空处前面的介词by判断填动词的ing形式,结合句意在doing前面加not,所以选C.
点评 本题考查非谓语动词的用法,抓住句中的关键词并联系相关的语法知识可得出正确的答案.平时注意对此类短语或句式用法的总结与归纳.
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