文档介绍：一、重点
1 .被动语态的构成:
助动词be 及物动词的过去分词。
助动词be有人称、数和时态的变化。
(1)一般现在时的被动语态:
am(is ,are) 动词过去分词
Rice is grown in China .中国出产大米。
(2)一般过去时的被动语态:
Was(were) 动词过去分词
These photos were taken last year .这些照片是去年照的。
(3)含有情态动词的被动语态:
情态动词 be 动词过去分词
This car can be mended in an hour .这辆小汽车一小时就能修好。
2 .主动语态变被动语态的方法:
(1)把主动语态的宾语提前变为被动语态的主语。
(2)把主动语态的谓语动词变为被动结构。但时态应保持一致,但人称和数的形式取决于被动语态的主语。
(3)把主动结构的主语变为介词by的宾语,组成介词短语,有时可以省略。
二、难点
(1)被动语态的用法(即何时用被动语态)。
(2)主动语态变被动语态的方法(怎样变)。
三、考点
(1)一般现在时的被动语态。
(2)一般过去时的被动语态。
(3)含有情态动词的被动语态。
(4)将主动语态的句子变为被动语态。有关动词的语态在历年各地中考题中约占3分左右
英语语法--动词的语态
1动词的语态
语态有两种:主动语态和被动语态。
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。
1)若宾语补足语是不带to 的不定式,变为被动语态时,该不定式前要
加"to"。此类动词为感官动词。
feel, hear, help, listen to, look at, make, observe, see, notice, watch
The teacher made me go out of the classroom.
--> I was made to go out of the classroom (by the teacher).
We saw him play football on the playground.
--> He was seen to play football on the playground.
2)情态动词+ be +过去分词,构成被动语态。
Coal can be used to produce electricity for agriculture and industry.
1 let 的用法
1)当let后只有一个单音节动词,变被动语态时,可用不带to 的不定式。
They let the strange go.---> The strange was let go.
2) 若let 后宾补较长时,let 通常不用被动语态,而用allow或permit 代替。
The nurse let me go to see my classmate in the hospital.
----> I was allowed / permitted to see my classmate in the hospital.
短语动词的被动语态
短语动词是一个整体,不可丢掉后面的介词或副词。
This is a photo of