九年级第六单元1课时龚泽花.ppt
Welcome!,Shuhe Middle School Gong Zehua,Chinese inventions,创设情景，目标领航,Voices:The Active and Passive VoicesActive Voice 主动语态表示主语是动作的执行者 Passive Voice 被动语态表示主语是动作的承受.如:1.Many people speak English.English is spoken(by many people).2.We must do something to stop the pollution.Something must be done to stop the pollution(by us).,The Passive Voice,（被动语态）,Conclusion:,情态动词 aux.v.(mustcancouldmay)+be+v.p.p.,被动语态的构成：be+vt.p.p.,被动语态的用法:,不知动作执行者时,常用被动语态.eg.My bike was stolen yesterday.2.不必要说出动作执行者时,常用被动语态.eg.Rome was not built in a day.3.为了突出强调动作的承受者时,常用被动语态.eg.Thousands of beaches are polluted.,主动语态变被动语态的结构图:,Bell invented the telephone in 1876.,主语,谓语动词过去时,宾语,时间状语,主语,谓语动词的过去分词,宾语,时间状语,The telephone,was invented,in 1876,Bell,by.,His brother washes bowls every day.,主,谓,宾(受动者),Bowls,are washed,by,his brother,every day.,主动语态变为被动语态的步骤:,把原主动句中的宾语转换为被动语态的主语.2.把动词改为被动形式,即“be+过去分词”.注意 be动词要按新的主语的人称和数进行变化,时态要和原来的主动语态的时态保持一致.3.原来主动语态句中的主语,如果需要,就放在by后面以它的宾格形式出现.如果没有必要就可以省略.其他的成分(定语,状语)不变,句式也不能变.,When was it invented?,Section A Period 1,Unit 6,Talk about the history of inventions.,The passive voice.,Language Goals:,Grammar Focus:,将下列句子变为被动语态：1.They clean their classroom every day.2.I repair Jennys bicycle every Sunday.3.This farmer grew beautiful flowers last year.4.The students should do their homework every day.5.Tom often plays basketball on the playground.,Their classroom is cleaned by them every day.,Jennys bicycle is repaired(by me)every Sunday.,Beautiful flowers were grown by this farmer last year.,Their homework should be done by the students evey day.,Basketball is often played by Tom on the playground.,6.Children often sing this song.,The song is often sung by children.,问题诱导 自学展示,1a,PAIRWORK,1876,1885,1971,1927,1c,PAIRWORK,A:When was the telephone invented?B:I think it was invented in 1876.A:What is it used for?B:It is used for,合作探究，反馈交流,1b,Listen and match the inventions with the dates.,a,b,d,1876188519271971,d,a,b,c,当堂训练，迁移应用,2a,Listen and number the inventions inthe order that you hear.,3,1,2,1.People use knives for cutting things.Knives _ _ for cutting things.2.The students clean the windows of their classroom twice a month.The windows of their classroom_ _ twice a month.,are used,are,cleaned,(变被动语态）,中考练兵,3.I found the ticket on the floor._ _ _ _ on the floor.4.I told her to return the book in time.She _ _ to return the book in time.,The ticket was found,was told,5.His doctor made him have only two meals a day.He _ _ _ _ only two meals a day.6.Now people can use computers to help them.Now computers _ _ _ to help them.,was made to have,can be,used,I think,Homework:1.He is cleaning the classroom.2.They have finished their homework.3.I can mend his bike.4.She will buy ten books tomorrow.5.The old man often makes us laugh.,Thank you!,Bye-bye,
