九年级 Unit 5 Grammar.ppt

1、Unit 5,Unit 5 What are the shirts made of? Grammar : Passive Voice,修文中学 高 翔,一、被动语态概念 (Passive Voice),英语的语态共有两种：主动语态和被动语态。 当主语为动作的执行者时, 谓语的形式为主动语态; 当主语为动作的承受者时, 谓语要用被动语态。,e.g. Many people speak English. （主动语态, 句子的主语many people是 动作speak的执行者） English is spoken by many people. （被动语态, 句子的主语English是动作 spe

2、ak的承受者）,It was made in Thailand. Is it made of silver? What is the model plane made of? Where is tea produced in China? It is planted on the side of mountains. They are picked by hand and then are sent for processing.,Read the sentences below, paying attention to the underlined parts.,被动语态由“助动词be+及物

3、动词的过去分词”构成。与主动语态一样，被动语态也有时态、人称和数的变化, 其变化规则与be作为连系动词时完全一样。,二、被动语态的构成,am / are / is + 动词的过去分词,一般现在时的被动语态:,将主动语态变为被动语态时： 1、将句子的宾语变成被动句的主语 2、将谓语动词变成“be+动词过去分词”形式。 3、将主语变成by+sb,三、主动句与被动句之间的转换,Many people speak English.,主动句与被动句之间的转换,English 主语,主语 谓语 宾语,is spoken be+ 过去分词,by many people . 介词+ 宾语,People pla

4、y football all over the world. 2. The old man on TV tells a story on Sunday. 3. Students listen to the kind teacher carefully.,Football is played all over the world by people.,A story is told by the old man on TV on Sunday.,The kind teacher is listened to by students carefully.,把下列的主动句变为被动句。,四、练习,.按

5、要求完成下列各题 1The car is made in China. (改为否定句) _ 2The classroom is cleaned by students every day. (改为一般疑问句) _ 3The sweater is made of wool. (对画线部分提问) _,The car isnt made in China.,Is the classroom cleaned by students every day?,What is the sweater made of?,Pair Work,A: Where are ? B: They are in ,grow

6、in Brazil,grow in Colombia,followed by,interviewed by,grow in China,grow in Canada,A: Where is / are ? B: It is / They are in ,1. Children under 18 _ (not allowed) to watch this show without their parents. 2. We _ (pay) by the boss on the last Friday of each month. 3. A: What language _ (speak) in G

7、ermany? B: Most people speak German, but many can speak English, too.,are not allowed,are paid,is spoken,4a Complete the sentences with the correct forms of the verbs in brackets.,4. Most of the earths surface _ (cover) by water. 5. The classroom needs to _ (clean) every day.,is covered,be cleaned,2

8、. In China, farmers grow the best rice in the northeast. 3. Careless driving causes many traffic accidents.,In China, the best rice are grown (by farmers) in the northeast.,Many traffic accidents are caused by careless driving.,4b Rewrite the sentences using the passive voice.,4. The postman brings letters and postcards to peoples homes. 5. Our family does not use this silver plate very often.,Lette