初中英语语法系列-被动语态PPT课件.ppt

被动语态;1.Teenagers should be allowed to choose their own clothes.;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。 ; 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. ;by many students.;;1. 找宾语 ----即动作的承受者;They play football on Sunday. Lucy does the homework in the evening. They often use computers in class. We make these machines in Beijing. ;肯定句：主语＋be + 过去分词＋(by ~) 否定句：主语＋be not ＋过去分词＋(by ~) 一般疑问句：Be ＋主语＋过去分词＋(by ~)? 特殊疑问句： 疑问词＋be＋主语+过去分词＋ (by ~) ;1. They bought ten computers 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 this room for resting. ;3.现在进行时的被动语态的结构;They are building a new house. He is looking for his new pen. We are cleaning our classroom windows now. They are cooking a rich dinner for Spring Festival. ;4.一般将来时的被动语态结构：;We will hold a sports meeting next week. Children will take some photos in the schoolyard tomorrow. The headmaster will give a talk this afternoon. ;5.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. ;6.现在完成时的被动语态的结构;1.We have cleaned doors and windows. 2.Lucy has painted three pictures till now. 3.They have mended the car for the old man. 4.He has kept the book for two days. ;表格：被动态基本结构;Such books are written for children. 这些书是为儿童写的;如：1.He gave me a book. －I was given a book by him. （以I做主语） －A book was given to me by Tom. （以物book作主语） 2.He teaches us English. －We are taught English by him. （以人当主语） －English is taught to us by him. （以物作主语）;keep, make 三类的动词常常有宾语补足 语，在被动语态中，宾语补足语位置不变。 We keep food fresh in the fridge. 主 谓 宾 宾补 －Food is kept fresh in the fridge. I saw him go into the office building. ; 不及物动词没有宾语，因此没有被动语态。但有的不及物动词后面加上介词及其他一些词类构成短语动词之后，其作用相当于及物动词，可以接宾语，因而也可以变为被动语态。在变成被动语态时，不能去掉构成短语动词的介词或副词.;即feel , hear , listen , have