题目内容
14.In some places,rubbishis thrown(throw) into lakes and rivers.分析 句意:在一些地方,垃圾被扔进湖泊和河流.
解答 答案:is thrown 根据题意,垃圾是被别人扔进湖里和河里,表达的是一种被动形式,故用被动语态,其结构是be+done,rubbish垃圾,是不可数名词,故答案为is thrown.
点评 被动语态的基本结构是be+done,及物动词的过去分词.
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