人教版初三unit3teenagersshouldbeallowedtochoosetheirownclothes(阅读).pptVIP

填空（完成被动语态填空） 1. They often clean their classroom after school . （改为被动语态） Their classroom _____ often ______ by them after school. 2. Li Lei gave Tom a new pen last week . （同上） A new pen _____ _______ _____ Tom last week . is cleaned was given by Practice 3. A lot of people in China can speak English now . （同上） English ______ ____ ______ by a lot of people in China now. 4. I have learned English for about two years. （同上） English ______ ______ ______ for about two years. 5. They will publish these story-books next month. （同上） These story-books _____ _____ _____ next month. can be spoken has been learned will be published * * * Unit3 Teenagers should be allowed to choose their own clothes. 1.Teenagers should be allowed to choose their own clothes. 2.English is spoken by many people . 4.Lucky 52 is watched on TV by many people . 3.The tickets about heroes are sold out . 5.Rice is planted in South China. 语态：表示主语和谓语动词之间的关系。 英语有两种语态，即主动语态和被动语态。 主动语态：表示主语是动作的执行者。被动语态：表示主语是动作的承受者。 如： Many students study English.(主动语态) English is studied by many students. (被动语态) 语态 助动词be有人称、数的变化,其变化规则与be作为连系动词时一样。 如：The desk is made of wood. The desks are made of wood. He is asked a question by the teacher. 被动语态的结构 助动词be (am, is, are )+及物动词的过去分词 不同的时态有不同的被动语态结构 被动语态的时态是由be的时态决定的 1.一般现在时的被动语态结构： 1.规则动词的过去分词： 1) 一般情况在动词原形后加-ed watch--- 2) 以不发音e结尾的加-d practice--- 3) 以辅音加y结尾的，去y变i加-ed study--- 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--- 2.不规则动词的过去分词： am is are been have has had do done write written go gone watched practiced studied stopped 主动语态：表示主语是动作的执行者。被动语态：表示主语是动作的承受者。 如： Many students study English.(主动语态) English is studied by many students. (被动语态) 1.把主动语态的宾语变为被动语态的主语。