初中被动语态讲解.PPT课件.ppt

被动语态; 英语动词有两种语态： 主动语态 (the Active Voice) 被动语态 (the Passive Voice);We speak English.;(一)被动语态基本用法: 当句子的主语是动作的执行者时，谓语的形式是主动语态。当句子的主语是动作的承受者时，谓语要用被动语态。被动语态由助动词be+过去分词构成，时态通过be表现出来。;be + 过去分词;1.规则动词的过去分词：;by many students.;1.将主动语态的宾语变为被动语态的主语。;They play football on Sunday. Lucy does the homework in the evening. They often use computers in class. We make these machines in Beijing. ;1. They bought a computer last term． ;They built the tall building last year. He took good care of his little brother yesterday. We cleaned our classroom just now. They used the rooms for resting. ;[3]. More man-made satellites ____ in the future. A. will send up B. will be sent up C. are sent up;3.一般将来时的被动语态结构：;We will held a sports meeting next week. Children will take some photos in the schoolyard tomorrow. The headmaster is going to give a talk this afternoon. ;4.含有情态动词的被动语态结构：;1.He can take care of the baby. 2.Lucy may draw the pictures. 3.You must turn off the lights. 4.They should learn English well. ;5.现在进行时的被动语态的结构;6.现在完成时的被动语态的结构;The passive voice;[1]. Now English ____ by more and more people all over the word. A. speaks B. is spoken C. was spoken;[2]. The lost boy ____ at the street corner last night. A. was found B. is found C. was looked for;[3]. More man-made satellites ____ in the future. A. will send up B. will be sent up C. are sent up;[4]. Three bridges ____ since last year. A. have built B. were built C. have been built;[5]. Flowers ____ every day. A. has been watered B. should be watered C. should water;1. 一般现在时：is / am / are + 及物动词的过去分词 2. 一般过去时：was / were + 及物动词的过去分词 3. 现在/过去完成时：has / have/had + been + 及物动词的过去分词 4. 一般将来时：will+ be + 及物动词的过去分词 5. 含有情态动词：情态动词+ be + 及物动词的过去分词 6. 现在进行时：am / is / are + being + 及物动词的过去分词;(四)主动语态变被动语态: (1)把原来的宾语提到前面作被动语态的主语; (2)把谓语动词变成被动结构(be＋过去分词) (根据被动语态句