UNIT4TOPIC1SECTIONC课文讲解课件仁爱版英语九年级上册

SectionC课文讲解Unit4AmazingScienceTopic1Whenwasitinvented?Thecarwasinventedin1885.It

wasinvented

byKarlBenz.KarlBenz1885Lookandsay1879EdisonThebulbwasinventedin1879.It

wasinvented

byEdison.1876Bell

Thetelephonewasinventedin1876.It

wasinvented

byBell.1862HarrisonThefridgewasinventedin1862.It

wasinvented

byHarrison.1926JohnBairdTheTVwasinventedin1926.It

wasinvented

byJohnBaird.Whatisaninvention?Doyouthinkyoucanbeaninventor?Why?Aninventionmaybeanewproductoranewwayofdoingthings.Inventionscomeaboutinmanyways.

Mostofthetime,inventionshappenbecausesomeoneworkstosolveaproblem.Sometimesinventionsaretheresultofaccidents.Q:Whatisaninvention?Aninventionmaybeanewproductoranewwayofdoingthings.inventionn.发明，创造inventv.发明，创造inventorn.发明者，发明家e.g.

TomasEdisonwas

a

great

American

inventor.

He

invented

electriclight.He

had

manyinventions.

Aninventionmaybeanewproductoranewwayofdoingthings.Inventionscomeaboutinmanyways.

Mostofthetime,inventionshappenbecausesomeoneworkstosolveaproblem.Sometimesinventionsaretheresultofaccidents.comeabout

发生mostofthetime绝大部分时间，在很多时候

theresultof...

……的结果Lookatyourschoolbags.Youhavepencils,pens,crayons,rulersandsomebooks.Noneofthesethingswasplantedinfields.Theyweremadeinfactoriesandinventedbysomeone.Inventingisinterestingandexcitingandeveryonecanbeaninventor.

Doyouwanttobeaninventor?Theseareafewsimplestepstofollowintheinventionprocess.noneof没有，无作主语时，若和of连用指的是不可数名词时，谓语动词用单数形式；若指可数名词时，谓语动词用单复数均可。Lookatyourschoolbags.Youhavepencils,pens,crayons,rulersandsomebooks.Noneofthesethingswasplantedinfields.Theyweremadeinfactoriesandinventedbysomeone.Inventingisinterestingandexcitingandeveryonecanbeaninventor.

Doyouwanttobeaninventor?Theseareafewsimplestepstofollowintheinventionprocess.一般过去时中的被动语态：was/were+donee.g.1.这些窗户是昨天被Jack打破的。

Thewindows(break)byJackyesterday.2.上周被偷了多少钱？

Howmuchmoney(steal)lastweek?werebrokenwasstolenUseyourimagination.Youcanhavewildandcrazythoughts.Rememberthatnoideaistoosilly.ManypeoplelaughedattheWrightbrothersandsaidtheywouldneverfly.Buttheyweren'tdiscouragedbywhatpeoplesaid.That'swhynowwehaveplanes.imaginationn.想象力;想象imaginevt.想像，设想e.g.I

can

justimagine

his

reaction.

Useyourimagination.Youcanhavewildandcrazythoughts.Rememberthatnoideaistoosilly.ManypeoplelaughedattheWrightbrothersandsaidtheywouldneverfly.Buttheyweren'tdiscouragedbywhatpeoplesaid.That'swhynowwehaveplanes.discouragevt.使泄气，使灰心；使打消念头嘲笑第三人称单数：discourages现在分词：discouraging过去式：discouraged过去分词：discouragedPlananddesignyourinvention.Carefulplanningisimportantintheinventionprocess.Thisisthetimetobrainstormforideaandtoevaluatethem.Drawyourinvention.Makeadetaileddrawingofyourinventionsootherswillunderstandhowyourinventionworks.brainstormv.集思广益，动脑筋evaluatev.估值,评价,评估detailedadj.详细的Makeamodelofyourinvention.Testyourinvention.Seeifyourinventionworksasitisplanned.Ifnot,domoreresearch,redesignit,andtestitagain.Nameyourinvention.Everyinventionneedsaname.Shareyourinventionswithothers.share...with与……分享……e.g.LilysharesherapplewithLucy.Aninventionmaybeanewproductoranewwayofdoingthings.simplestepstofollowintheinventionprocess