现在完成时的被动语态课件
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08.现在完成时的被动语态吴国斌现在完成时的被动语态强调一个发生在过去的被动性动作持续到现在或对现在造成的影响或结果。
1.现在完成时的被动语态的结构:have/has+been+及物动词的过去分词2.现在完成时的被动语态的形式:(1)肯定式:主语+ have/has+been+及物动词的过去分词+其他。
The car has been repaired.这辆汽车已经被修理过了。
(2)否定式:主语+ have/has+not+been+及物动词的过去分词+其他。
The house hasn’t been cleaned for a long time.这所房子很久没有打扫了。
(3)一般疑问式:Have/Has+主语+been+及物动词的过去分词+其他?Has my letter been received?你收到我的信了吗?(4)特殊疑问式:特殊疑问词+have/has+主语+been+及物动词的过去分词+其他?How long has the car been used?这辆汽车用了多长时间了?3.学习现在完成时的被动语态应该注意以下几点:(1)现在完成时的被动语态同主动语态一样强调过去动作的延续或对现在造成的影响。
That important problem has been discussed for nearly two weeks.那个重要的问题已经讨论近两周了。
How many new words have been learned by the students?这些学生已经学会了多少生词?(2)被动语态没有完成进行时态,现在完成进行时的主动语态改为被动语态时用现在完成时。
He has been writing the report for two days.变为被动语态应为:The report has been written by him for two days.那份报告他已经写了两天了。