题目内容
5.We can make a big difference to the earth bydoing(do) small changes.分析 我们可以通过做微小的改变来对地球产生很大的影响.
解答 答案:doing
联系语境,根据关键词by可知此处为介词,表"通过",指方式,其后应该跟动名词;结合提示词为动词do,其动名词为doing,这里是指通过做些做微小的改变来对地球产生很大的影响.故填:doing
点评 此题考查动名词的用法.做题时联系语境抓住关键词确定出所填词的正确形式,从而做出形式上的改变.
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