九年级第六单元1课时龚泽花.ppt

1、Shuhe Middle School Gong Zehua创设情景，目标领航创设情景，目标领航 Voices:The Active and Passive VoicesActive Voice Active Voice 主主动语态表示主语是动作的执行者动语态表示主语是动作的执行者 Passive VoicePassive Voice 被动语态表示主语是动作的承受被动语态表示主语是动作的承受.如如:1.Many people speak English.English is spoken(by many people).2.We must do something to stop the po

2、llution.Something must be done to stop the pollution (by us).（被动语态被动语态）情态动词情态动词 aux.v.(mustcancouldmay)+be+v.p.p.被动语态的构成：被动语态的构成：be+vt.p.p.方方 式式时时 间间一一 般般 进进 行行完完 成成 现现 在在amis +pp.areamis being+pp.arehas been+pp.have 过过 去去was +pp.were was being+pp.were had been+pp.将将 来来shall be+pp.will shall have be

3、en+ppwill 过过 去去将将 来来should be+pp.would should have been+ppwould1.不知动作执行者时不知动作执行者时,常用被动语态常用被动语态.eg.My bike was stolen yesterday.2.不必要说出动作执行者时不必要说出动作执行者时,常用常用被动语态被动语态.eg.Rome was not built in a day.3.为了突出强调动作的承受者时为了突出强调动作的承受者时,常用被动语态常用被动语态.eg.Thousands of beaches are polluted.Bell invented the telepho

4、ne 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 telephonewas inventedin 1876Bellby.His brother washes bowls every day.主主谓谓宾宾(受动者受动者)Bowls are washed by his brother every day.1.把原主动句中的宾语转换为被动语态的主语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把动词改为被动形式,即即“be+过去分词过去分词”.注意注意 be动词要按新的主语的人称和数进行变化动词要按新的主语的人称和数进行变化,时态要和原来时

5、态要和原来的主动语态的时态保持一致的主动语态的时态保持一致.3.原来主动语态句中的主语原来主动语态句中的主语,如果需要如果需要,就放在就放在by后面后面以它的宾格形式出现以它的宾格形式出现.如果没有必要就可以省略如果没有必要就可以省略.其他的其他的成分成分(定语定语,状语状语)不变不变,句式也不能变句式也不能变.Unit 6Language Goals:Grammar Focus:将下列句子变为被动语态：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

6、 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 sh

7、ould 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.问题诱导问题诱导 自学展示自学展示1a1a18761885197119271c1cA:When was the telephone invented?B:I think it was invented in 1876.A:What is it used for?B:It is used

8、 for 合作探究，反馈交流合作探究，反馈交流1b1babd1876188519271971dabc当堂训练，迁移应用当堂训练，迁移应用2a2aListen and number the inventions inthe order that you hear.3121.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_

9、 _ twice a month.are usedarecleaned(变被动语态）变被动语态）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 told5.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 usedMy harvest: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.