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人教版英语九年级上册被动语态课件

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2020-10-18 更新 5莲券

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简介:Unit3 Teenagers should be allowed to choose their own clothes. Tuesday, Sep. 13th, 2005 Sunny by Lily Period 1-2 English is spoken by many people . Da Changjin is watched on TV by many people . The tickets about heroes are sold out . Rice is planted in South China. He is said a good boy . Grammar 被动语态 1. “ 语态”表示 主语 和 谓语动词 之间的关系。英语中有“ 两态 ”的说法,即 主动语态 和 被动语态 ,本单元中反复出现的 should be allowed 就是一个含有情态动词( should )的被动语态。 先看几个基本概念 主语是动作的发出者为 主动语态 主语是动作的接受者为 被动语态 只有及物动词才有被动语态。 2. 被动语态的构成 一般现在时的被动语态为: 主+ am / is / are ( not )+过去分词 一般过去时的被动语态为: 主+ was / were +过去分词 如: Butter is made from milk. This house was built 100 years ago. The office is cleaned every day . The office was cleaned yesterday. 现在进行时被动语态的构成为 主语+ is / am / are + being +过去分词 再如: My car is being repaired now. Some new houses are being built near the park. 公园附近在建一些房子。 现在完成时被动语态的构成为 主语+ have / has + been +过去分词 如: My key has been stolen . My keys have been stolen . I am not going to the party, I haven’t been invited . 含有情态动词的被动语态 情态动词+ be +过去分词 A note had better be left to him. Teenagers should be allowed to wear their own clothes 这里我们列举了几个主要时态,那么其它时态呢? 一般将来时 主语+ will + be +过去分词 过去将来时 主语+ would / should + be +过去分词 过去进行时 主语+ was / were + being +过去分词 过去完成时 主语+ had + been + 过去分词 被动语态的 时态 是由 be 的时态决定的, be 是什么时态,全句就是什么时态, be 动词后面的过去分词不变。 归纳: 肯定句 :主语+ be + 过去分词+ (by ~) 否定句 :主语+ be not +过去分词+ (by ~) 一般疑问句 : Be +主语+过去分词+ (by ~)? 特殊疑问句 :疑问词+ be +主语+过去分词+ (by ~) 3. 被动语态的用法: ( 1 )不知道或没有必要说明动作的执行者是谁,不用 by +动作执行者短语 Such books are written for children. 这些书是为儿童写的。 I haven’t been told about it . 没有人告诉我这件事 ( 2 )强调动作的承受者,这时应用 by 短语。 The cup was broken by David. ( 3 )作客观说明时,常采用一种被动语态句型 It’s / was said / believed / reported / + that … It’s reported that about three hundred people were killed in this earthquake. 据报道,这次地震中大约有三百人死亡。 4. 主动语态变为被动语态 把主动语态的句子变为被动语态的方法是: ( 1 )把原句中的... 更多>>

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时间:2019年10月09日

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