中考英语语法专题复习---_被动语态PPT概要.ppt

★掌握一般现在时、一般过去时 的被动语态，（预习）一般将来时和带有can，may，must等情态动词的被动语态的构成和基本用法。 It’s very important for us to protect the environment. Every day many trees are cut down. Waste is thrown away. The air is polluted. Waste water is poured into rivers. Wild animals are killed…… 保护环境对于我们来说很重要. 每天树木在被砍伐. 空气被污染. 废物被乱扔. 污水被排放到河里. 野生动物被杀…… 观察下列句子并总结. 1.Many trees are cut down. 2.Waste is thrown away. 3.The air is polluted. 4.Waste water is poured into rivers. 5.Wild animals are killed…… 一般现在时的被动语态: am/is/are+过去分词 Exercise: The bottle __________ (fill) with hot water. 瓶子里装满了热水。 2. Cameras _________ (use) for taking photos. 相机是用来照相的. are used is filled 3.The classroom is very clean and it __________ (clean) by us every day. 4.The toys in the supermarket ________ (make) in China. 5.Beijing is a beautiful city and it _________ (visit) by many people every year. is cleaned are made is visited Though mom wasn’t at home last night, Lily and Ted still had a good dinner. The vegetables were cut by Ted. The food was cooked by Lily. And after the supper, the dishes were washed by Lily. The table was wiped（擦）by Ted. The kitchen was cleaned by them two. 尽管妈妈昨晚没在家，丽丽和泰德仍然吃了一顿 很好的晚餐。 菜是被泰德切的。 食物是被丽丽煮的。 晚饭后，碗是被丽丽洗的。 桌子是被泰德打扫的。 厨房被他们打扫干净。 观察下列句子并总结. 1.The vegetables were cut by Ted. 2.The food was cooked by Lily. 3.The dishes were washed by Lily. 4.The table was wiped by Ted. 5.The kitchen was cleaned by them two. 一般过去时的被动语态: was/were+过去分词 Exercise: 1.A new machine _______________ (invent) last month. 一种新型机器上个月被发明。 2.They ___________ (ask) a question by the teacher yesterday. 昨天他们被老师问了一个问题。 were asked was invented 3.The book _____________ (write) by him last year. 4.Our school has a long history. And it ___________ (build) in 1958. 5.Many students ___________ (send) to America to study by our school last year. were sent was built was written 1一现被：Many tre