Unit6SectionB（3a-selfcheck）課件人教版英語九年級全冊

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.假如你是一個商人，你有一項新發(fā)明。請以Aspecial…為題介紹一下你的新發(fā)明，并將它推銷給你的同學們。詞數(shù)80-100。開頭已給出，不計入總詞數(shù)。____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ThisspecialpenwasinventedbyLiuJie.Ithasthreecolorsandisusedfor...Imagineyouareabusinessperson.Writeadescriptionofyournewinvention.Trytoselltheinventiontotheclass.3bHowtointroduceaninvention?bylisteningmusic.bydoingexercises.Analysis定人稱定時態(tài)定體裁說明文

一般過去時

第三人稱

一般現(xiàn)在時被動語態(tài)Howtointroduceaninvention?開篇點題詳盡描述表達觀點Howto

introduceaninvention?BeginningEndingBodyWhatShowopinionWhat,HowAnalysisStructure如何介紹某項發(fā)明Para1引出話題...

important

inourdailylife.Para2介紹發(fā)明時間：Itwasinventedin...材料：It’smadeof....外形：...is/wassmall/huge/light...用途：...is/wasusedfor/to...Para3談談感受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.人稱:

主要用第三人稱2.時態(tài):一般過去時態(tài)為主，其它時態(tài)為輔；3.語態(tài)：主要用被動語態(tài)4.常用句型：

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

④Ithink…isaveryusefulinvention.5.寫作思路首先，使用3b句型介紹發(fā)明的產品發(fā)明人名稱；其次：根據(jù)3a提示，使用句型介紹類型、用途及其制作材料等；最后：介紹自己的使用感受效果等,建議同學買一個。注意：要恰當運用被動語態(tài)，檢查時態(tài)、句子結構等是否正確。寫作指導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介紹發(fā)明物的背景介紹發(fā)明物的細節(jié)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根據(jù)漢語意思，補全句子。1.人們相信他就是發(fā)明那個新型機器的人。________________thatheisthepersonwhoinventedthenewmachine.2.老師把整個班級分成了8個小組。Theteacher_______thewholeclass______eightgroups.2.中國在努力阻止人口數(shù)量的增長。Chinaistryingto_________the_________ofpopulationfrom_________.3.人們相信有很多人出去賺錢。_________

_________there_________

_________numberofpeoplegoingouttomakemoney.4.什么時候才能實現(xiàn)我的夢想。WhenwillI_________my_________?It’sbelieved

divided

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

When:______________

Who:_______________

Purpose:_____________

switchplug(斷路插頭)2012，富超穎(中國)scootercarriage(滑板嬰兒車)2