考试,评价
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动词的语态概述 — 情态动词+ be +及物动词的过去分词
作者:frog  文章来源:本站原创  点击数  更新时间:2010-4-6 21:29:47  文章录入:frog  责任编辑:frog

    含有情态动词的句子改为被动语态时,将情态动词后面的动词原形改为被动语态,即:情态动词+ be +及物动词的过去分词。例如:[文章来自:考试与评价 http://www.trgroup.com.cn/te/ x(l],PIj=1(5N~V*:]
    You must finish the work by 12 o'clock. →The work must be finished by 12 o'clock.[文章来自:考试与评价 http://www.trgroup.com.cn/te/ NAyTeb;=+k^$-X~,|]
    People used to use ice to cool houses. →Ice used to be used to cool houses.[文章来自:考试与评价 http://www.trgroup.com.cn/te/ Sl_m aHmkDt LKJ_"]
    Students should take care of the books and magazines in the library. →The books and magazines in the library should be taken care of.
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