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英语被动语态

英语被动语态. 需要掌握的要点: 1 、如何判断主动句还是被动句。 2 、掌握各种时态的被动形式。 3 、主动句与被动句的转换。. 1 、判断主动句还是被动句的关键是看谓语与主语之间的关系。如果谓语动词所表示的动作是主语发出的是主动句,否则是被动句。 例如: We often play basketball 。(此句中的 play“ 打”这个动作是主语 we“ 我们”来完成,因此是主动句。

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英语被动语态

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  1. 英语被动语态

  2. 需要掌握的要点: 1、如何判断主动句还是被动句。 2、掌握各种时态的被动形式。 3、主动句与被动句的转换。

  3. 1、判断主动句还是被动句的关键是看谓语与主语之间的关系。如果谓语动词所表示的动作是主语发出的是主动句,否则是被动句。1、判断主动句还是被动句的关键是看谓语与主语之间的关系。如果谓语动词所表示的动作是主语发出的是主动句,否则是被动句。 • 例如:We often play basketball。(此句中的play“打”这个动作是主语we“我们”来完成,因此是主动句。 • The baby is looked after very well.(此句的主语baby“婴儿”不能完成looked after“照顾”这个动作,而是被别人照顾,因此是被动句。

  4. 2.被动语态的形式: • 1)被动语态的基本形式为“助动词be + 动词的过去分词”构成即(be done) 。 • 被动语态的不同时态是通过助动词be的时态变化来体现的,其人称和数方面应与主语保持一致。我们需要掌握的被动句型是:

  5. am/is/are+动词的过去分词 (done) • 一般现在时的被动语态: • 一般过去时的被动语态: • 一般将来时的被动语态: • 现在完成时的被动语态: • 含情态动词的被动语态: • was/were+动词的过去分词 (done) • will be +动词的过去分词(done) • have /has been +动词的过去分词(done) • 情态动词+be+动词的过去分词 (done)

  6. 2)被动语态的否定式:在第一个助动词后加not构成 • 例如:The letter was not written last night. • 3、主、被动语态的相互转换: • 主、被动句的转换可分为三个步骤: • 第一步:将主动句的宾语变为被动句的主语。 • 第二步:将主动句的动词变为被动语态的形式即“be+动词的过去分词”。 • 第三步:将主动句的主语变为被动句的宾语,前面要加by。

  7. • 注意:1、by短语可以省略。2、如果是人称代词要相应的变为主格或宾格。如图: • 主动句: 主语+谓语+宾语 • 被动句: ② ① 主语 be+过去分词 (+by+宾语) 例如:Luxun wrote the book. The book was written by Luxun.

  8. 考查要点: •   主要考查一般现在时,一般过去时以及一般现在时带有情态动词的被动语态的用法。 • 练习一:用所给单词的适当形式填空 • 1.Teenagers ____________ to smoke. (not allow) • 2、Lights____________ by Edison. (invent) • 3、The blackboard should___________ ( clean). • 4、English _____________ in Canada. (speak) aren’t allowed were invented be cleaned is spoken

  9. D • 二、选择填空 (  )1、This English song___ by the girls after class. • A. often sings B. often sang  • C. is often sang D. is often sung • (  ) 2、 This kind of car ___ in Japan.  • A, makes B. made C. is making D. is made • ( )3、The bridges___ two years ago. • A. is built B. built C. were built D. was built • ( )4、Old people must ___. • A. be looked after well B. be looked well after • C. looked well afterD. look after well • ( ) 5. We must _____ our classroom every day. • A. is cleaned B. clean • C. was cleaned D. cleans D C A B

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