一般现在时的被动语态-完整精讲版课件

1、一般现在时的被动语态语法专项课件一般现在时被动语态的定义和结构被动语态变化步骤误用人称代词混淆主、被动谓语结构被动语态的定义语态：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。被动语态的定义Many students study English.(主动语态) English is studied by many students.(被动语态)动作的执行者动作的承受者被动语态的结构 be + 过去分词 amis are一般现在时被动语态的结构一般现在时被动语态的句式肯定句：主语+am/is/are +过去分

2、词+其他.否定句：主语+am/is/are +not+过去分词+其他.疑问句：Am/Is/Are + 主语 + 过去分词+其他？Shoes are made by them.Shoes are not made by them.Are shoes made by them?易错点1被动语态变化步骤四部曲第一步：主宾互换。第二步：谓语动词变为“be+过去分词”，并通过be的变化来表达出不同的时态。第三步： “be+过去分词” + by +原主语。（有时by+原主语可省）第四步：时间、地点状语等保持一致。主变被四步曲易错点1被动语态变化步骤宾变主,主变宾,前加by动变被,看清be, 结构分别be+

3、 ppby many students. Many students study English.Englishis studied易错点2Jim often sees us. （转化被动语态）Us are often seen (by Jim).We are often seen (by Jim).误用人称代词如果主动语态句子的宾语是人称代词，在变被动语态时要用其对应的主格形式。易错点3Does he do a lot of work every day?（转化被动语态）Does a lot of work done (by him) every day?Is a lot of work d

4、one (by him) every day?混淆主、被动谓语结构不要把主、被动谓语结构混在一起，尤其在否定句和疑问句中。（被动语态要以be done为中心谓语结构）【典例1】In some countries, tea _ with milk and sugar. A. is serving B. is served C. serves D. served考查语态。句意：在一些国家，茶被加入牛奶和糖作为招待品。tea为“动作的受动者”，选用被动语态，结构为be done；根据句意，客观事实要用一般现在时，tea为第三人称单数，故答案选B。考查语态之间的转换。句意：两个医生和十个护士组成了这个医疗小组。首先主、宾调换位置，第二步：谓语结构要变化（be done），be动词根据主语（原宾语the medical team）选用is；动词变成过去分词made。【典例2】Two doctors and ten nurses make up the medical team