中考英语被动语态总复习 课件
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中考英语复习——被动语态语法归纳中考英语复习——被动语态语法归纳概念:英语有两种语态,主动语态和被动语态。
主动语态表示主语是谓语动作的执行者,或者是说动作是由主语完成。
被动语态表示主语是谓语动作的承受者,或者是说动作不是由主语而是由其他人完成。
一般说来,只有需要动作对象的及物动词才有被动语态,汉语往往用“被”、“受”、“给”等词来表示被动含义。
构成:被动语态由“助动词be+动词的过去分词”构成。
被动语态的时态变化只改变be的形式,过去分词部分不变。
疑问句和否定句的变化形式也是如此。
各种时态形式表如下:不定式的被动语态构成为“to be done”1. English is spoken in many countries. (一般现在时)2. Who was this article written by? (一般过去时)3. An important meeting will be held in our school. (一般将来时)4. A new bridge is being built in the city. (现在进行时)5. Everything has been done by him so far. (现在完成时)6. Something must be done to protect wild animals. (情态动词)使用范围:①不知道或不必指出动作的执行者These books are written for children. / We were asked to sing a song.②强调动作的承受者,这时可带有by引起的短语。
More trees must be planted by us next year.A new machine was invented by Uncle Wang last month.③当动作的执行者不是人时,多用被动语态The whole village was washed away by the flood.④表示客观的说明常用“It’s +过去分词”句型。