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高一英语必修第一册Unit1语法详解动词的语态 及物动词的语态有两种：主动语态和被动语态。 1.定义：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。 2.被动语态的构成 被动语态最基本的句型结构是： be +及物动词过去分词.即be done 一般现在时：is/am/are+done 一般过去时:was/were+done 现在进行时:is/am/are+being+done 过去进行时:was/were+being+done 一般将来时:will+be+done 过去将来时:would+be+done 现在完成时:have/has+been+done 过去完成时:had+been +done 情态动词can/may/must/need/could/would/should+be+done 初一英语练习题 快速记单词 英语语法练习题 【注意】 1) 主动语态变为被动语态要加“to”的情况 以下动词变为被动语态时，要在其后加“to”。 此类动词为感官动词，如：feel, hear, help, listen to, look at, make, observe, see, notice, watch等。 例如： The teacher made me go out of the classroom. I was made to go out of the classroom (by the teacher). They made him cry. (主动语态) He was made to cry by them. (被动语态) 2) 主动形式表示被动意义 如wash, clean, cut, read, wear, draw, write, sell等动词虽然用做主动形式却表示被动的意义。例如： The pen writes smoothly. This kind of cloth washes easily. 感官动词如feel，look，smell，taste，sound等直接跟形容词作表语。 The food tastes good. 3)want, need, require表示“需要”时，后接-ing表被动； ①Sth. want/need/require to be done=sth. want/need/require doing Your hair needs cutting= Your hair need to be cut.你的头发需要被剪 ②be worth+doing sth.值得被做...。The book is worth reading. 
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