九年级英语课件Unit6Self-check.ppt

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1、一般过去时被动语态一般过去时被动语态 一般过去时的被动语态表示过去某一时刻发一般过去时的被动语态表示过去某一时刻发生的被动性动作生的被动性动作, 其基本结构为：其基本结构为： 主语主语+ was / were + 过去分词过去分词+ by . The teacher was visited by them two years ago. 他们两年前看过这位老师。他们两年前看过这位老师。主主动动变被变被动动解题步骤解题步骤:1. 找宾语找宾语 -即动作的承受者即动作的承受者2. 判断宾语的单复数判断宾语的单复数 -即即be动词的单复数动词的单复数3. 判断动词的时态判断动词的时态 -即即be动词的

2、时态动词的时态4. 修改谓语的时态修改谓语的时态 -即原句动词改为过去分词即原句动词改为过去分词5. 修改原句的主语修改原句的主语 -即即by+ 主语主语/ 宾语宾语be要随着主语变要随着主语变逻辑主语逻辑主语by来引来引1. Tom broke the window. The window was broken by Tom.2.He broke the windows. The windows were broken by him. 被动语态的大体构成：被动语态的大体构成： be + P.P.（过去分词）（过去分词）主动语态变被动之歌：主动语态变被动之歌：被动语态强调宾，被动语态强调宾，b

3、e后加上过去分。后加上过去分。be要随着主语变，人称时态要弄准。要随着主语变，人称时态要弄准。行为对象作主语，行为对象作主语， 逻辑主语逻辑主语by来引。来引。 Some fruits were bought (by him) yesterday.He bought some fruits yesterday.The motorbike was ridden to his factory (by him) last night.He rode the motorbike to his factory last night.We made the snowman this morning.The

4、 snowman was made by us this morning.Complete the passage with the correct form of the words in the box.1invent doubt mention nearby website all of a suddeninvent doubt mention nearly website all of a suddenIt is often difficult to decide on the inventor of certain inventions. This is because someti

5、mes a few people may _ things which are _ the same. Its hard to tell who came up with the idea first.inventnearlyinvent doubt mention nearly website all of a suddenSome inventions can also lead to other inventions _. So some people _ whether the inventor came up with the idea himself or herself. The

6、y think that the inventor used someone elses idea to create his or her invention. That is why books or _ usually _ more than one inventor when giving information about invention.all of a suddendoubt websites mention1. Someone stole my watch.2. They used five eggs to make this big cake.Rewrite these

7、sentences using the passive voice.2My watch was stolen (by someone).Five eggs were used to make this big cake.3. When did they invent the personal computer?4. They asked us not to run in the hallway.5. Someone took the video back to the store.When was the personal computer invented?We were asked not

8、 to run in the hallway.The video was taken back to the store (by someone).Invention:When:Who:Purpose:Find out information about an invention you would like to know more about and write sentences below. 3switch plug (断路插头断路插头)2012年，年， 富超穎富超穎 (中国中国)scooter carriage (滑板婴儿车滑板婴儿车)2007年，年， Valentin Vodev

9、(奥地利奥地利) 1.The first paper _ (make) in China in 105 AD.2.For over 500 years the art of making paper _ (limit) to China.3.In 610, papermaking _ (introduce) into Japan.4.Kites _ (know) in China about 3,000 years ago.was made was limited was introduced were knownFill in the blanks with the correct form

10、 of the given verbs.5. Wheelbarrows _ (invent) in the Han Dynasty.6. Gunpowder _ (discover) by the Chinese hundreds of years ago.7. Soccer _ (develop) in England in the 12th century.were invented was discovered was developed 按要求改写下列各句。按要求改写下列各句。 1. We planted these trees in 1997. (改成被动语改成被动语态态)_2. H

11、e made a cake yesterday. (改成被动语态改成被动语态)_These trees were planted (by us) in 1997.A cake was made by him yesterday.3. The teacher gave the students some advice. (改改成被动语态成被动语态)_4. He was seen to read a book in his room. (用用I作作主语主语, 改为主动语态改为主动语态)_5. She was helped by all the people.(改成一般疑改成一般疑问句问句)_Som

12、e advice was given to the students by the teacher.I saw him read a book in his room.Was she helped by all the people?根据中英文提示完成句子。根据中英文提示完成句子。1. 根据历史记载根据历史记载, 纸是由蔡伦发明的。纸是由蔡伦发明的。_ history, paper _ by Cai Lun.2. 大约三千年前风筝在中国就被人使用了。大约三千年前风筝在中国就被人使用了。Kites_ in China about 3,000 years ago.According towas inventedwere used3. 这个书架是木头做的。这个书架是木头做的。This bookshelf _ wood.4. 这部电影是由冯小刚导演的。这部电影是由冯小刚导演的。This film _ Feng Xiaogang. is made ofwas directed by