有机物的特征

1、,被动语态课件,Wu Xiuhua From Yumen Middle School,一 构成 主语是动作的承受者，用被动语态。 1.现在时被动语态： am/is/are+及物动词的过去分词，（be是助动词） e.g:English is spoken by many people. German isnt taught in our school. Is French studied in your school?,grammar:,2.过去时的被动语态： was/were+及物动词的过去分词 e.g:These new houses were built in 2000. My bike

2、wasnt made in Shanghai. Was this kind of machine made in Shenzhen? 注意：被动语态中be的形式是由主语决定的,3.情态动词的被语态： must/can/may+be+动词的过去分词 e.g: The car mustnt be stopped here. Can this chair be taken out of the room? This job must be finished on time.,小窍门： 我们可以这样看被动语态的基本构成： be + 及物动词的过去分词 表示时态 表示被动 要变化 不变化,二 被动语态的

3、几种类型： 1 主动句中有一个宾语的被动语态 He saw her in the shop yesterday. She was seen in the shop yesterday. 2 主动句中有二个宾语的被动语态 Jim gave me a book. I was given a book by Jim. A book was given to me by Jim.,3 主动句中含有宾语补足语句子的被动语态 Mother told me not to be late. I was told not to be late by mother. I saw mother planting f

4、lowers in the garden. Mother was seen planting flowers in the garden. They made him work 12 hours a day. He was made to work 12 hours a day.,4 短语动词的被动语态 I can take good care of the baby. The baby can be taken good care of.,三 被动语态的注意事项 1 “主语+系动词+表语”的句子没有被动语 态 2 there be 句型没有被动语态 3 主动句中宾语是反身代词的没有被动语态

5、4 主动句的谓语动词是不及物动词的没有 被动语态，但与介词搭配后，则有: The nurse looked after him carefully. The baby was looked after by the nurse carefully.,Practice: 1 Must I pay for it at once? _ it _ _ _ at once? 2 We will build a new lab. A new lab _ _ _. 3 They arent stopping the traffic now. The traffic _ _ _ now. 4 How long

6、 have you kept the book? How long _ the book _ _?,Must,been,paid,for,will,be,built,isnt,been,stopping,has,been,kept,5 If your homework _(do) well,you may go to play. 6 Mr.Green was seen _ (grow) trees. 7 The blackboard was _ (look) carefully by the students. 8 The ship model _ be _ (make) in two day

7、s.,is done,to grow,looked at,will,made,Translate the following sentences.,1.我们必须采取措施以阻止河流的进一步污染。 Something _ _ _ to stop the river from being polluted more. 2.世界上讲英语的人是最多的。 English _ _ by the largest number of people in the world.,must,be,done,is,spoken,3.明年我校还要修一幢新教学楼。 Another new teaching building _ _ _ in our school next year. 4.中国南方种水稻。 Rice _ _ in South China. 5.昨天爸爸给你买了一辆自行车。 A bike _ _ for you by your father yesterday.,will,be,built,is,grown,was,bou