Unit6Whenwasitinvented？SectionB3a-SelfCheck課件人教版九年級英語全冊

3a-SelfCheck老師：XXX班級：XXXUnit6Whenwasitinvented?ReviewLearntowalkbeforeyourunWhatinventionshavewelearned?ReviewHowtointroducethem?When

wasitinvented?Whowasitinventedby?Itwasinventedin/by…Whatinventionshavewelearned?ReviewHowtointroducethem?Who

wasitinventedby?Howwasitinvented?Itwasinventedby...Oneday,...What

aretheinfluences?Howtodescribeaninvention?Whowasitinvented?Howwasitinvented?Whenandwherewasitinventedby?Whatisitusedfor?

Whataretheinfluencesofit?Whatisitmadeof?Howdoesitwork?......Learntowalkbeforeyourun

Pre-writing1.Problem:__________________________Newinvention:_____________________Whatitisusedfor:__________________Thinkofsomethingthatyoudonotliketodo.Thenthinkofaninventionthatcouldhelpyou.Makenotes.aspecialpenquicklytakingnotesinclasstakingnotesinclassLearntowalkbeforeyourun3.Problem:___________________________Newinvention:______________________Whatitisusedfor:________________________________________________________________________2.Problem:___________________________Newinvention:______________________Whatitisusedfor:__________________aspecialclockgettingupearlywakingmeupdoinghomeworkarobotdoinghomeworkwithmeItcanbemyfavoritehomeworkpartnerLearntowalkbeforeyourunbylisteningmusic.bydoingexercises.Let’stalk.Someinterestinginventions.Doyouthinktheyareuseful?Whathaveyouinvented?self-closingdoorLearntowalkbeforeyourun1.What’sitandwhenwasitinvented?2.What’situsedfor?3.Whatdoesitlooklike?

4.Whowouldbeinterestedinbuyingthisproduct?5.Howdoesitwork?6.Howmuchisit?LearntowalkbeforeyourunImagineyouareabusinessperson.Writeadescriptionofyournewinvention.Trytoselltheinventiontotheclass.ThisspecialpenwasinventedbyLiuJie.Ithasthreecolorsandisusedfor…Learntowalkbeforeyourun體裁：說明文

時態(tài)：介紹發(fā)明要用一般現(xiàn)在時人稱：第三人稱在介紹該發(fā)明的工作原理時，可以使用表示順序的詞first和then來連接，這是使用邏輯紐帶的方式進行銜接的一種方法。Learntowalkbeforeyourun一般過去時的被動語態(tài)一般過去時的被動語態(tài)表示過去某一時刻發(fā)生的被動性動作,其基本結(jié)構(gòu)為：

主語+was/were+動詞過去分詞+by...eg:Theteacherwasvisitedbythemtwoyearsago.他們兩年前拜訪過這位老師。Learntowalkbeforeyourun主動變被動解題步驟1.找賓語----即動作的承受者2.判斷賓語的單復(fù)數(shù)----即be動詞的單復(fù)數(shù)3.判斷動詞的時態(tài)----即be動詞的時態(tài)4.修改謂語的時態(tài)----即原句動詞改為過去分詞5.修改原句的主語----即by+主語/賓語LearntowalkbeforeyourunfreetalkHowtointroduceaninvention3415whohowatthesametimealthoughbecause...inorderto...sothat...Therebe...color,shape,size,usewhatwhyinvention2whenin+年份on+月，日，年...was/wereinventedby......invented...whowhenwhywhathowLearntowalkbeforeyourun1.Ithink…isaveryusefulinvention.

我認(rèn)為……是一項很有用的發(fā)明。2.…wasinventedby………是由……(某人)發(fā)明的3.…wasinventedin………是在……(某時間)發(fā)明的4.Itwasusedfor…它被用來……

5.…ismadeof………是由……(材料)制成的LearntowalkbeforeyourunSamplewriting:LearntowalkbeforeyourunFindoutinformationaboutaninventionyouwouldliketoknowmoreaboutandwritesentencesbelow.Invention:___________

When:______________

Who:_______________

Purpose:_____________

switchplug(斷路插頭)2012，富超穎(中國)scootercarriage(滑板嬰兒車)2007年

ValentinVodev(奧地利)LearntowalkbeforeyouruninventdoubtmentionwebsiteallofasuddenItisoftendifficulttodecideontheinventorofcertaininventions.Thisisbecausesometimesafewpeoplemay_________thingswhicharenearlythesame.It’shardtotellwhocameupwiththeideafirst.Someinventionscanalsoleadtootherinventions________________.Sosomepeople__________whethertheinventorcameupwiththeideahimselforherself.doubtinventallofasuddenSelfCheck1.Completethepassagewiththecorrectformsofthewordsinthebox.LearntowalkbeforeyourunTheythinkthattheinventorusedsomeoneelse’sideatocreatehisorherinvention.Thatiswhybooksor___________usually_______________morethanoneinventorwhengivinginformationaboutinventions.websitesmentioninventdoubtmentionwebsiteallofasuddenSelfCheck1.Completethepassagewiththecorrectformsofthewordsinthebox.Learntowalkbeforeyourun2.Rewritethesesentencesusingthepassivevoice.4.Theyaskedusnottoruninthehallway.

5.Someonetookthevideobacktothestore.

Wewereaskednottoruninthehallway.Thevideowastakenbacktothestore(bysomeone).SelfCheckLearntowalkbeforeyourunSummaryFillintheblankswiththecorrectformofthegivenverbs.1.Thefirstpaper__________(make)inChinain105AD.2.Forover500yearstheartofmakingpaper__________(limit)toChina.3.In610,papermaking______________(introduce)intoJapan.4.Kites___________(know)inChinaabout3,000yearsago.5.Wheelbarrows____________(invent)intheHanDynasty.6.Gunpowder