初中英语语法被动语态总复习课件.ppt

陈永梅 知识点再现:被动语态 结构：be +动词的过去分词 意义：强调主语是动作的承受者 何时使用 变化方法 注意事项 2.一般过去时态的被动语态结构: was/ were + vt 过去分词 3.含有情态动词的被动语态结构: 情态动词+be+ vt 过去分词 4.一般将来时的被动语态结构: will/shall +be + vt 过去分词 5.现在进行时态的被动语态结构: am/ is /are+being + vt 过去分词 6.过去进行时态的被动语态结构:was / were + being+ vt 过去分词 7.现在完成时态的被动语态结构: have/has been + vt 过去分词 1.一般现在时态的被动语态结构: am/is/are + vt 过去分词 变化： 示例 The boy broke the glass. The glass was broken by the boy. 从主动语态变为被动语态 1.主语 介词by 宾语 2.谓语 加be,并变为过去分词 3.宾语 主语 二、常见语态转换 （一）一般现在时和一般过去时的被动语态。 引入练习1。请将下列主动语态变成被动语态 1.Lucy bought some fruit. Some fruit _____ ______ _____ Lucy. 2.Uncle Wang waters the flowers every day. The flowers ___ _______ ____ Uncle Wang every day. 3.Did they build the bridge in 1998? ____ the bridge _____ in 1998? 4.When did Lu Xun write these books? When _____these books _______ ____ Lu Xun? 5.The farmers don’t grow apples on the farm. Apples _____ _____ on the farm. 6.They didn’t clean the classroom yesterday. The classroom _______ ________ yesterday. 小结： 1、被动语态的转换，在be+过去分词中，确定_____ 是关键，_______永不变。 2、Be的时态由_______________确定；be的单/复数由____________确定。 3、问句提前__________; 否定________后加not. （二）一般现在时带情态动词的被动语态。 引入练习2。请将下列主动语态变成被动语态。 1.You can do the work all by yourself. The work _____ _____ _____ all by yourself. 2.We must plant more trees. More trees _____ _____ ________. 3.Can we put our bikes here? _____ our bikes ____ _____ here? 4.You mustn’t throw rubbish here. Rubbish ______ _____ ______ here. 小结： 1.含情态动词的被动结构： ______________________. 2.疑问句提前_____________; 否定句：___________+not. 1.一般可变为被动语态的动词为及物动词 2.be动词可根据人称、时态、数进行变化. 3.不特别强调动作执行者时，by短语(即 by和后面的宾语)一般可以省略 注意事项： 1.We call Mr. Smith a living Lei Feng. Mr. Smith_________ a living Lei Feng (by us). 2.Tom’s father bought him a book. He __________a book (by his father) A book_________him (by his father) 1.带双宾语的句子有两种改法: 一般情况下把指人的宾语作为被动句的主语.当把直接宾语物作为主语时，要加介词to,for was bought is called was bought to pas