Unit6SectionB（3a-selfcheck）课件人教版英语九年级全册

Unit6Whenwasitinvented?（SectionB3a-selfcheck）LearningobjectivesBy

the

end

of

the

class,youwillbeableto…1.Learnhowto

write

the

expository

writing

and

consolidatetheusageofpassivevoice.2.Knowmoreaboutgreatinventionsandarousetheinterestininventing.Inventionsareeverywhereinourlife.Theyareveryusefulandhelpful.Somefruitswerebought(byhim)yesterday.He

bought

somefruitsyesterday.He

rode

themotorbiketohisfactorylastnight.Themotorbike

was

riddentohisfactory(byhim)lastnight.We

madethesnowmanthismorning.Thesnowmanwasmadebyusthismorning.Howmanyinventionshavebeenmentionedinthisunit?carzipperTVtelephonebasketballteapotatochipsCanyoutalkaboutthem?Who?/When?/How?/What?......Warming-upHowtodescribeaninvention?Whowasitinvented?Howwasitinvented?Whenandwherewasitinventedby?Whatisitusedfor?

Whataretheinfluencesofit?Whatisitmadeof?Howdoesitwork?......bylisteningmusic.bydoingexercises.Let’stalk.Someinterestinginventions.Doyouthinktheyareuseful?Whathaveyouinvented?self-closingdoorThinkofsomethingthatyoudonotliketodo.Thenthinkofaninventionthatcouldhelpyou.Makenotes.3a·Problem:__________________________·Newinvention:_____________________·Whatitisusedfor:___________________aspecialpenquicklytakingnotesinclasstakingnotesinclassCanyouthinkaboutmoredetailsaboutthispen?Whatisitmadeof?Whatspecialthingdoesithave?Whatdoesitlooklike?Howcanithelpyou?3bThis

specialpenwasinventedbyLiuJie.Ithasthreecolorsandisusedfor…Imagineyouareabusinessperson.Writeadescriptionofyournewinvention.Trytoselltheinventiontotheclass.假如你是一个商人，你有一项新发明。请以Aspecial…为题介绍一下你的新发明，并将它推销给你的同学们。词数80-100。开头已给出，不计入总词数。____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ThisspecialpenwasinventedbyLiuJie.Ithasthreecolorsandisusedfor...Imagineyouareabusinessperson.Writeadescriptionofyournewinvention.Trytoselltheinventiontotheclass.3bHowtointroduceaninvention?bylisteningmusic.bydoingexercises.Analysis定人称定时态定体裁说明文

一般过去时

第三人称

一般现在时被动语态Howtointroduceaninvention?开篇点题详尽描述表达观点Howto

introduceaninvention?BeginningEndingBodyWhatShowopinionWhat,HowAnalysisStructure如何介绍某项发明Para1引出话题...

important

inourdailylife.Para2介绍发明时间：Itwasinventedin...材料：It’smadeof....外形：...is/wassmall/huge/light...用途：...is/wasusedfor/to...Para3谈谈感受Ithink/hopeit...Problem:________________________________.Newinvention:________________________________.Whatitisusedfor:________________________________.

can’t

quicklytakingnotesinclass

aspecialpen

takingnotesquicklyCanyouthinkaboutmoredetailsaboutthispen?Whatisitmadeof?Whatspecialthingdoesithave?Whatdoesitlooklike?Howcanithelpyou?BeginningSb.alalwayshavedifficultyindoingsth.,soheinventedthis.BodyItismadeof…Itlookslike…Ithas…Notonlycanithelpyou…,butalsoitcanhelpyou…End篇章布局1.人称:

主要用第三人称2.时态:一般过去时态为主，其它时态为辅；3.语态：主要用被动语态4.常用句型：

①...wasinventedby/in…②...ismadeof/from…③...isusedfor...

④Ithink…isaveryusefulinvention.5.写作思路首先，使用3b句型介绍发明的产品发明人名称；其次：根据3a提示，使用句型介绍类型、用途及其制作材料等；最后：介绍自己的使用感受效果等,建议同学买一个。注意：要恰当运用被动语态，检查时态、句子结构等是否正确。写作指导Hi,boysandgirls.Ihaveaspecialinvention.ThisspecialpenwasinventedbyLiuJie.Ithasthreecolorsandisusedfortakingnotesquicklyinclass.Itwasinventedin2012.Itismadeofplasticandsteel.Itcanrememberwhattheteachersaid.Itcanalsohelpwritedownthemainpoints.Ithinkit’sausefulinvention.Doyoulikeit?Ifyoulikeit,pleasecallmea范文展示：Canyouwriteashortpassagesbyansweringthesequestions?Whenwasitinvented?Whowasitinventedby?Whataretheyusedfor?Howwasitinvented?Whataretheinfluencesofit?Wherecanweseeit?Whatdifficultieshavetheygotintheirlives?

can’tmanagehertimewiselycan’ttakenotesquicklyalwaysforgetaboutthingsCanyouinventsomethingtohelpthem?writing介绍发明物的背景介绍发明物的细节信息我的使用感受Smallinventionwouldchangetheworld.BeagreatinventorChangetheworld!SelfCheck1.

Completethepassagewithcorrectformsofthewordsinthebox.inventdoubtmentionwebsiteallofasuddenItisoftendifficulttodecideontheinventorofcertaininventions.Thisisbecausesometimesafewpeoplemay______thingswhicharenearlythesame.It’shardtotellwhocameupwiththeideafirst.inventSomeinventionscanalsoleadtootherinventions______________.Sosomepeople_________whethertheinventorcameupwiththeideahimselforherself.Theythinkthattheinventorusedsomeoneelse’sideatocreatehisorherinvention.Thatiswhybooksor________usually_________morethanoneinventorwhengivinginformationaboutinventions.allofasuddendoubtwebsitesmention0102030405Peer-editingGoodStructureCorrectgrammar/spellingGoodsentencesLinkingwordsBeautifulwritingExchangeyourarticles,helpeachothercorrectthem.Post-writingExerciseI根据汉语意思，补全句子。1.人们相信他就是发明那个新型机器的人。________________thatheisthepersonwhoinventedthenewmachine.2.老师把整个班级分成了8个小组。Theteacher_______thewholeclass______eightgroups.2.中国在努力阻止人口数量的增长。Chinaistryingto_________the_________ofpopulationfrom_________.3.人们相信有很多人出去赚钱。_________

_________there_________

_________numberofpeoplegoingouttomakemoney.4.什么时候才能实现我的梦想。WhenwillI_________my_________?It’sbelieved

divided

intostopnumberincreasingIt'sbelievedareaachievedream2.Rewritethesesentencesusingthepassivevoice.wasstolen.wereusedbythemwasinventedWewereaskedwastaken3.Findoutinformationaboutaninventionyouwouldliketoknowmoreaboutandwritesentencesbelow.Invention:___________

When:______________

Who:_______________

Purpose:_____________

switchplug(断路插头)2012，富超穎(中国)scootercarriage(滑板婴儿车)2