新目标初三英语Thepassivevoice.ppt

The passive voice Discuss Summary 英语中动词有主动语态和被动语态两 种语态。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， 在被动语态中动作的执行者有时用by短语 表示出来。 Have a try 1.A letter (write) by Mike every week. 2.Our classroom (clean) every day. 3.Vegetables,eggs and fruits (sell) in this shop. 4.Everyone likes the interesting film. 5.Many people speak Chinese. 6.People grow rice in the south of the country. Do you know? 一般现在时被动语态的构成： 主语 + is/am/are + 及物动词的过去分词 Have a try 1.Many stories (write) by hin last year. 2. A new shop (build) last month. 3.I post that letter last night. 4.My friend invited me to her birthday party. 5.Mother told me not to be late. 6.The boy planted some trees on the hill yesterday. Do you know? 一般过去时被动语态的构成： Was/were + 及物动词的过去分词 Have a try 1.You must hand in your homework after class. Your homework after class. 2.We will build a new lab. A new lab . 3.We should water the trees well. The trees well. 4.Amy can take good care of Gina. Gina by Amy. 5. Lucy may draw the pictures. The pictures by Lucy. Do you know? 含情态动词的被动语态的构成： 情态动词 + be + 及物动词的过去分词 (can/may/must/should) 1.We should plant the trees around the lake. 2.The workers built the bridge in 1968. 3.He plays basketball every week. 4.She waters the flowers every day. 5.We must repair the computer now. 6.The boy broke the glass. 主动语态 被动语态的方法： 把主动语态的宾语变为被动语态的主语 把谓语动词变成被动结构（be+过去分词） 根据被动语态句子中主语的人称和数，以及原来主动语态句子中动词的时态来决定be的形式。 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。如果原句主语是地点名词，在被动语态中用in+地点名词作状语。 Have a try 1.They will give many books to our school. Many books given to our school. 2.We are cleaning the rooms. The rooms