英语人教版九年级全册Grammer.ppt

1、Unit 5,Section A Grammar Focus,庙沟门中学：杨红,被动语态 (Passive Voice),结构: be + V过去分词,am / are / is +及物动词的过去分词,一般现在时的被动语态:,被动语态的几种句型,1. 肯定句 主语 + be + 过去分词 + (by),A sweet song is sung by her on the stage.,2. 否定句 主语 + be + not +过去分词 + (by),3. 一般疑问句 Be + 主语 +过去分词 + (by)?,A sweet song isnt sung by her on the stag

2、e.,Is a sweet song sung by her on the stage?,4. 特殊疑问句 疑问词 + be + 主语 +过去分词 + (by)?,Where is a sweet song sung by her?,Many people speak English.,主动句与被动句之间的转换,English is spoken by many people.,主语 谓语动词 宾语,主语 谓语动词被动语态的过去分词 介词+ 宾语,主动句变为被动句所遵循的4个步骤：,1. 把原主动句中的宾语变为被动句的主语。,2. 把动词变为被动形式即be+过去分词，并注意其人称和数随主语的变

3、化，而动词的时态则保持不变。,3. 原主动句的主语如需要则放在by后面以它 的宾格形式出现（注代词的宾格），如不需要则可省略。,4. 其它的成分（定语、状语）不变。,2. This shop uses the best materials to make dresses. 3. Careless driving causes many traffic accidents.,The best materials are used by this shop to make dresses.,Many traffic accidents are caused by careless driving.

4、,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.,Letters and postcards are brought to peoples homes (by the postman).,This silver plate is not used very often in our family.,何时使用被

5、动语态:,1. 不知道谁是动作的执行者或没有必要 强调动作的执行者时,Some new computers were stolen last night.,一些新电脑在昨晚被盗了。(不知道电脑是谁偷的) 2.为了强调或突出主语是动作的承受者时。 The bikes are made by them in the factory. 这些自行车在工厂里被他们制造出来。 (强调自行车被制造出来）,（3）有时为了礼貌等原因不愿说出行为者,这时也常用被动语态。 You are requested to give a performance. 请你给我们表演一个节目。,1. Children under

6、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 Germany? B: Most people speak German, but many can speak English, too.,are not allowed,are paid,is spoken,4a Complete the sentences with the corre

7、ct forms of the verbs in brackets.,4. Most of the earths surface _ (cover) by water. 5. The classroom _ (clean) every day.,is covered,is cleaned,1) Sunglasses _ (use) for protecting peoples eyes. 2)The girl _(teach) us English on Sundays. 3) My father_ (buy) a new computer for me yesterday. 4)Listen!They_(sing)inthemuisc room.,are used,teaches,bought,用所给动词的正确形式填空。,are singing,5) Which language _ the most widely _ (speak) in the world? 6) He often _ (go) to school by bike, but last year he often _(walk) to school. 7) Vegetables, eggs and fruits _ (sell) in this