1、1.定义：表示主语和谓语之间是定义：表示主语和谓语之间是被动被动关系，主语关系，主语被。被。The classroom is cleaned by us every day.2.谓语结构是：谓语结构是：be+动词的过去分词动词的过去分词3.强调动作发出者：强调动作发出者：by+宾语代词或名词宾语代词或名词4.be有各种时态变化。有各种时态变化。主动语态：表示主语和谓语之间是主动语态：表示主语和谓语之间是主动主动关系。关系。We clean the classroom every day.我们每年都种树。我们每年都种树。We plant trees every year.树每年都被我们种。树每年
2、都被我们种。Trees are planted by us every year.is spokenare readare plantedis grown 一般现在时一般现在时被动语态的构成被动语态的构成amisare+过去分词过去分词主语主语+(by+动作执行者）动作执行者）动作动作执行者执行者动作动作Praticeopencollectis openedare collectedWriteMark twainis written byiscleanedbyisused一、把主动语态的句子变为被动语态一、把主动语态的句子变为被动语态1.We clean the classroom after
3、 school.The classroom _ by us after school.2.The teachers use the computers everyday.The computers _ by the teachers everyday.3.Children read books in the classroom.Books _ by children in the classroom.4.I love cartoons.Cartoons _ by me.is cleanedare usedare readare loved1.Half of the apple _(eat)by
4、 his sister.2._(be)basketball _(play)around the world?3.The flowers _(not water)by the students every day.4.Many books _(write)by that famous writer.5.Most of the famous pop songs _(sing)by him.is eatenare not wateredare writtenare sungIsplayedhappenedare boughtis usedis spokenEnglish is spoken (by
5、them)in Canada.Wood is used(by people)for making tables.Computers are made(by them)in the USA.Rice is grown(by them)in South China.English is spoken(by more and more people).More trees are planted (by us)every year here.Big ships are produced in Dalian.Rice is grown(by farmers)in summer.Our classroo
6、m is cleaned(by us)every day.am/is/aream/is/are拓展延伸：动脑筋，想一下拓展延伸：动脑筋，想一下was/were+donewill+be donehave/has+been doneThe Great Wall was built in Qin Dinasty.A football playground will be built in our school.Two new buildings have been built in our school.主动语态变被动语态口诀：主动语态变被动语态口诀：宾语提前主语变，宾语提前主语变，原主变宾原主变宾byby后见，后见，时态人称时态人称bebe关键。关键。
