初中英语被动语态复习17082.pptVIP

* Passive voice 被动语态基本用法 当句子的主语是动作的执行者时，谓语的形式是主动语态。当句子的主语是动作的承受者时，谓语要用被动语态。被动语态由助动词be+过去分词构成，时态通过be表现出来。 be + Vp.p(动词的过去分词） 1)be 动词可以随时态人称的变化而变化 am/ is / are + V(过去分词） was/ were+ V(过去分词） will be + V(过去分词） 情态动词+ be + V (过去分词） 1.规则动词的过去分词： 1)一般情况在动词原形后加-ed watch---watched 2)以不发音e结尾的加-d practice---practiced 3)以辅音加y结尾的，去y变i加-ed study---studied 4)以重读闭音节结尾，末尾只有一个辅音字母， 先双写该辅音字母，再加-ed stop---stopped 2.不规则动词的过去分词： am is are been have has had do done write written go gone He plants trees in spring. 主 谓 宾(受动者) Trees are planted by him 改为被动语态 in spring. 主动语态变被动语态口诀： 宾语提前主语变， 原主变宾by后见， 时态人称be关键。 Tom will clean the room tomorrow. 主 谓 宾(受动者) The room will be cleaned by Tom tomorrow. His brother washes bowls every day. 主 谓 宾(受动者) Bowls are washed by his brother every day. 1.They make shoes in that factory. 主语+及物动词+宾语 Shoes are made (by them) in that factory. 一般现在时： S(主语）+am/is /are +过去分词 2. They bought ten computers last term． Ten computers were bought (by them) last term. 一般过去时：S+was/were +过去分词 3．Amy can take good care of Gina ． Gina can be taken good care of by Amy. 情态动词： S+ can/may/must/should + be+过去分词 各种时态的被动语态构成 1）一般现在时：You are invited to do this. 2）一般过去时：The story was told by her. 3）一般将来时：The problem will be discussed tomorrow. 4)情态动词：The rubbish can be put into the dustbin over there. 情态动词+ be +Vpp 情态动词+ V(原形) 含情态动词 will+ be +Vpp will +V(原形) 一般将来时 was/were +Vpp V-ed/ made 一般过去时 am/is/are +Vpp V(原形)/ V(e)s 一般现在时 被动语态 主动语态 时态 各种时态的被动语态构成 一般现在时： 一般过去时： 情态动词： 一般将来时： 现在进行时： 现在完成时： 过去进行时： S+am/is /are +P.P S+was/were +P.P. S+ can/may/must/should + be+ P.P. S+ will+be+ P.P. S+ am/is/are + being + P.P. S+ have/has + been+ P.P. S+ was/were+being+ P.P. 何时使用被动语态呢？ 一、行为主体不明确，不必说出或者无法说出动作的执行者时。例如： Football is played all over the world． 二、不易找到或根本就不可能找到动作的执行者时。例如： My bike was stolen．我的自行车被盗了。 三、汉语中含有“据说”、“据悉”、“有人说”、“大家说”等时。例如： It is said that one day he climbed to the top of a house and …… It was reported that her mot