UNIT4TOPIC1SECTIONC課文講解課件仁愛版英語九年級上冊

SectionC課文講解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.發(fā)明，創(chuàng)造inventv.發(fā)明，創(chuàng)造inventorn.發(fā)明者，發(fā)明家e.g.

TomasEdisonwas

a

great

American

inventor.

He

invented

electriclight.He

had

manyinventions.

Aninventionmaybeanewproductoranewwayofdoingthings.Inventionscomeaboutinmanyways.

Mostofthetime,inventionshappenbecausesomeoneworkstosolveaproblem.Sometimesinventionsaretheresultofaccidents.comeabout

發(fā)生mostofthetime絕大部分時間，在很多時候

theresultof...

……的結(jié)果Lookatyourschoolbags.Youhavepencils,pens,crayons,rulersandsomebooks.Noneofthesethingswasplantedinfields.Theyweremadeinfactoriesandinventedbysomeone.Inventingisinterestingandexcitingandeveryonecanbeaninventor.

Doyouwanttobeaninventor?Theseareafewsimplestepstofollowintheinventionprocess.noneof沒有，無作主語時，若和of連用指的是不可數(shù)名詞時，謂語動詞用單數(shù)形式；若指可數(shù)名詞時，謂語動詞用單復(fù)數(shù)均可。Lookatyourschoolbags.Youhavepencils,pens,crayons,rulersandsomebooks.Noneofthesethingswasplantedinfields.Theyweremadeinfactoriesandinventedbysomeone.Inventingisinterestingandexcitingandeveryonecanbeaninventor.

Doyouwanttobeaninventor?Theseareafewsimplestepstofollowintheinventionprocess.一般過去時中的被動語態(tài)：was/were+donee.g.1.這些窗戶是昨天被Jack打破的。

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

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

can

justimagine

his

reaction.

Useyourimagination.Youcanhavewildandcrazythoughts.Rememberthatnoideaistoosilly.ManypeoplelaughedattheWrightbrothersandsaidtheywouldneverfly.Buttheyweren'tdiscouragedbywhatpeoplesaid.That'swhynowwehaveplanes.discouragevt.使泄氣，使灰心；使打消念頭嘲笑第三人稱單數(shù)：discourages現(xiàn)在分詞：discouraging過去式：discouraged過去分詞：discouragedPlananddesignyourinvention.Carefulplanningisimportantintheinventionprocess.Thisisthetimetobrainstormforideaandtoevaluatethem.Drawyourinvention.Makeadetaileddrawingofyourinventionsootherswillunderstandhowyourinventionworks.brainstormv.集思廣益，動腦筋evaluatev.估值,評價,評估detailedadj.詳細(xì)的Makeamodelofyourinvention.Testyourinvention.Seeifyourinventionworksasitisplanned.Ifnot,domoreresearch,redesignit,andtestitagain.Nameyourinvention.Everyinventionneedsaname.Shareyourinventionswithothers.share...with與……分享……e.g.LilysharesherapplewithLucy.Aninventionmaybeanewproductoranewwayofdoingthings.simplestepstofollowintheinventionprocess