英语八大时态变成被动语态

、语态概述 英语的语态是通过动词形式的变化表现出来的。英语中有两种语态：主动语态和被动语态。 主动语态表示主语是动作的执行者。巧记为：主动、主动、主去动。 例如：Many people speak English. 谓语：speak的动作是由主语many people来执行的。 被动语态表示主语是动作的承受者，即行为动作的对象。巧记为：被动、被动、主被动。例如：English is spoken by many people.主语English是动词speak的承受者。 主动态和被动态指的是动词形式，是词法概念；而主动句和被动句则指的是句子结构，从而是句法概念。所谓主动句就是由主动态动词(词组)作谓语动词的句子，而被动句则是由被动态动词(词组)作谓语动词的句子。 例如：He opened the door.他开了门。(主动句) The door was opened.门被开了。(被动句) 二、被动语态的构成 被动语态由“助动词be＋及物动词的过去分词”构成。人称、数和时态的变化是通过be的变化表现出来的。现以teach为例说明被动语态在各种时态中的构成。 一般现在时：am／is／are＋taught 一般过去时：was／were＋taught 一般将来时：will／shall be＋taught 现在进行时：am／is／are being＋taught 过去进行时：have／has been＋taught 现在完成时：have／has been＋taught 歌诀是：被动语态be字变，过去分词跟后面。 三、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。 例如： Some new computers were stolen last night. 一些新电脑在昨晚被盗了。(不知道电脑是谁偷的) This book was published in 1981.这本书出版于1981年。 (2)强调动作的承受者，而不强调动作的执行者。 例如：the window was broken by Mike.窗户是迈克打破的。 This book was written by him.这本书是他写的。 Eight hours per day for sleep must be guaranteed.每天8小时睡眠必须得到保证。 歌诀：谁做的动作不知道，说出谁做的没有必要； 动作承受者需强调，被动语态运用到。 四、主动语态变被动语态的方法 (1)把主动语态的宾语变为被动语态的主语。 (2)把谓语变成被动结构(be＋过去分词) (根据被动语态句子里的主语的人称和数，以及原来主动语态句子中动词的时态来决定be的形式)。 (3)把主动语态中的主语放在介词by之后作宾语，将主格改为宾格。例如： All the people laughed at him. He was laughed at by all people. They make the bikes in the factory. The bikes are made�by them in the factory. 歌诀是：宾变主，主变宾，by短语后面跟。 谓语动词变被动，be后“过分”来使用。 五、含有情态动词的被动语态 含有情态动词的主动句变成被动句时，由“情态动词＋be＋过去分词”构成，原来带to的情态动词变成被动语态后“to”仍要保留。 歌诀是：情态动词变动，情态加be加“过分”，原来带to要保留。例如： We can repair this watch in two days. This watch can be repaired in two days. You ought to take it away. It ought to be taken away. They should do it at once. It should be done at once

一般现在时 i want to eat an apple
一般过去时 i ate an apple yesterday
一般将来时 i wil go to Beijing tomrrow
现在进行时 i am eating an apple
过去进行时 i was doing my work when he came back
将来进行时 she must be doing her work the time tomrrow
现在完成时 i have finished my work
过去完成时 if i had followed you yersterday ,i would not have lost
将来完成时 if i did it tomrrow,i i should havepassed it

一般现在时：He is always attracted by beautiful girls.
一般过去时：He was told the bad news by others.
现在进行时：How many bridges are being built in the city?
过去进行时：The bridges were being built in the city.
现在完成时：The homework has been finished.
过去完成时：The homework had been finished.
一般将来时：The cloth will be washed./The homework will be finished in two hours.
过去将来时：He would be asked to speak.
我有的例句用的是一个意思的句子，这样比较起来清楚些，希望对你有帮助啦！