新目标英语九年级第九单元第一课时课件.ppt

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1、Unit 9 When was it invented?Section A-1宋海燕Class 3 Grade 3,No.13 Middle School,Go for it!Grade 9,Four great inventions of China,Cai Lun invented the paper making in 105.,invented,the paper making,in 105.,Cai Lun,The paper making,was,by,invention,invent,inventor,Task 1:Guess:Which one was invented ear

2、lier and which one was invented later.,A:I think the was invented before the B:Well,I think the was invented after the,calculator,Task 2:Listen and find out the dates of the inventions.,The was invented in,1885,1876,1971,1976,1927,Do you remember?,A:When was the invented?B:It was invented in,-Who wa

3、s the paper making invented by(in 105)?,-It was invented by Cai Lun.,The paper making was invented by Cai Lun in 105.,Task 3:Lets guess who invented it.,A:Who was the invented by?B:I think it was invented by,car computertelephonelight bulb,Steve Jobs and Steve WozniakEdisonKarl BenzBell,Task 4:Do yo

4、u know what they are used for?Lets match them to the uses!,1.talking with the person who isnt near2.traveling3.cooking4.eating food5.keeping away from the rain6.waking us up,The is/are used for ing.,-What is/are the used for?-It is/They are used for ing.,Task 5:Work in pairs to talk about the uses o

5、f the things around us.You can talk about the things below if you want.,Task 6:Lets know more inventions.,A:When was/were the invented?B:It was/They were invented in,A:Who was/were the invented by?B:It was/They were invented by,A:What is/are the used for?B:It is/They are used for ing.,Task 7:4 stude

6、nts a group to report:introduce an invention including its inventor/date and uses.,SUMMARY:.被动语态的构成:,1.be+过去分词+by+(动作执行者).2.被动语态句子的时态由be的时态决定,be后的过去分词不随之改变.3.否定句:在be后加not.4.疑问句:把be提前.,SUMMARY:.主动语态变被动语态:,1.主动语态的宾语 被动语态的主语.2.主动语态的动词 be+该动词的过去分词(作被动语态的谓语).be按人称变化,但时态不变.3.主动语态的主语 by+该主语(放在被动语态的句尾,可以省略)

7、.若原主语是代词放在be后要变为其宾格形式.,被动语态专项练习.据划线部分提问1.Glasses were invented in1450.2.The bottle machine was invented by Michael Owens.3.Dictionaries are used for looking up words.,When were glasses invented?,Who was the bottle machine invented by?,What are dictionaries used for?,.用所给词的适当形式填空:1._ a new library _

8、in our school last year?(build)2.They _ to school.(take)3.-When _ these computers _in this school?-Last year.(use)4.The Great Wall _ all over the world.5.I _ in summer.(bear)(know)6.Who _ this book _ by?(write)7.Older people _ well.(must,look after),Was built,were taken,were used,was known,was born,

9、was written,must be looked after,.将下列句子变为被动语态，每空一词。We can finish the work in two days.The work _ _ _ in two days.2.The children will sing an English song.An English song _ _ _ by the children.3.They use knives for cutting things.Knives _ _ for cutting things.4.Lucy sent me a New Year Card last week.

10、A New Year Card _ _ _ her by me last week.5.We clean the classroom every day.The classroom _ _ every day.,can be finished,will be sung,are used,was sent to,was cleaned,Homework:根据你所掌握的材料写一个短文.介绍一个你认为最有用/最有趣/最的发明.,1.题目The invention 2.适当使用被动语态3.6080词,Lets remember forever:Genius is one per cent inspiration and ninety-nine per cent perspiration.(天才=1%灵感+99%汗水)-Thomas Edison,