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1、被动语态的基本结构：1一般现在时：主语+助动词Be+及物动词的过去分词 一般过去时：主语+助动词Be的过去式was/were+及物动词的过去分词Eg: This kind of computer is made in that company .(2 ) Flowers were watered yesterday .2. 以下几种情况用被动语态：(1)不清楚谁是动作执行者时.eg： My book has been stolen.(2 )没有必要或不想说出动作执行者时.eg： Flowers are grown well there.(3 )强调动作的承受者时 ；eg: The CD-ROM
2、 has bee n sold out.3. 及物动词能够成被动语态，不及物动词不能够成被动语态.只有这些，不及物动词与介词或 副词构成不可分割的短语，并且带有宾语时，才能用被动语态.Eg: The children are looked after very well in the school .4. 有些动词带有双宾语，变成被动语态时，两个宾语都可以作被动语态中的主语，但间接宾语 作主语的较多.Eg; Kitty give me an apple.(改成被动式 )An apple is give n to me5. 有些动词后接不定式作宾语原可省“to ”的，变被动语态时要加上“to ”
3、。Eg ； Her mother makes her read English once a day。(变被动式) She is made to read English once a day 。(例如感官动词和使役动词：hear , watch , make , help , let , see , have )1.一般将来时2.现在进行时3.过去进行时4.现在完成时5.过去完成时些有关被动语态的知识点;will / shall be +及物动词的过去分词 am / is /are bei ng +及物动词的过去分词 were / was bei ng +及物动词的过去分词 have / has been +及物动词的过去分词 had / bee n +及物动词的过去分词学习好资料欢迎下载
