题目内容
5.Factories threw rubbish into rivers a few years ago.(改为被动语态)Rubbishwasthrowninto rivers by factories a few years ago.
分析 几年前工厂将垃圾扔进河里.
解答 答案:was thrown.主语rubbish是动词throw的承受者,构成被动语态,结合时间状语 a few years ago表示的是过去的时间,故用一般过去时的被动语态was/were+过去分词,主语是不可数名词,故was,throw的过去分词是thrown,故答案是was thrown.
点评 一般过去时的被动语态was/were+过去分词的呈现,各种类型的被动语态的构成要理解掌握.
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| 61.A.until | B.so that | C.because | D.even if |
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