Unit 5 Section A 1a-1d 课件（内嵌视频）2026-2027学年人教版英语九年级上册

Unit5PowerofIdeasInthisunit,youwill1.talkaboutinventions.2.discusshowinventionschangeourlives.3.describeinventionsusingthepassivevoice.4.explorethestoriesofinventorsandinventions.Unit

5PowerofideasWhatdocreativeideasbringabout?SectionA(1a-1d)Lookandshare1.Whatcanyouseeinthephoto?2.Howdoyoufeelaboutthephoto?3.Whatcreativeideascanyoufindinit?IcanseeamoderntrainpassingbytheoldYellowCraneTower.ThetowerisafamousancientbuildinginChina,andthetrainshowshowwetraveltoday.Ifeelproudandexcited.ItshowsthefastdevelopmentofmoderntechnologyandthebeautyoftraditionalChinesecultureatthesametime.Thephotoshowsthatoldthingsandnewthingscanlivetogether.Wecanlearnfromthepastandalsocreatenewideasforthefuture.Thisisthepowerofideas!high-speedtraincameraTVmobilephonelaptopplaneGermanyABChina183919031925196419731981—Whenwasthe____________invented?—Itwasinventedin____________.📌planehigh-speedtraincameraTVmobilephonelaptop1839cameraplane1903TV1925high-speedtrain1964mobilephone1973laptop1981Conversation1Guide1:WelcometotheInternationalExhibitionof__________!Overhere,wehaveSuperSeefromGermany.Ella:They__________sunglasses.Whataretheyusedfor?Guide1:They’reforpeoplewhocan’tseewell.Theydon’tfindnormalglasseshelpful.Ella:Howdotheyhelppeopletosee?Guide1:Well,amini-camerais__________tothefrontoftheglasses.Itmakeseverythinglook__________.Wordscanalsobeturnedintosound.Ella:Cool!SotheycanhelppeoplewatchTVandreadbooks.Guide1:Yes.Theycanalso__________thecolourandpicture.Ella:Amazing!InventionslooklikeconnectedlargercontrolConversation2TengFei:Whatsmellsso__________?Guide2:Comeandhaveatry.SmartCookfromChinaiscookingsomefood.TengFei:Really?Howdoesit__________?Guide2:It’ssimple!Putfoodlikecarrotsandonionsinthecuponthetopofthemachine.Then__________thisbutton.Allthefoodiscutandfried.Theoilandsaltarealsoaddedbythe__________itself.TengFei:Fantastic!Howmany__________of__________canitmake?Guide2:Hundreds!Ithasanappwithmany__________.TengFei:Great!Withthis__________,myparentscantakea__________fromcooking.Guide2:How__________ofyouto__________so.I’m__________theywillloveit.deliciousworkpressmachinekindsdishesrecipesrobotbreaknicethinksureTheyhelppeoplewatchTVandreadbooks.Theycanalsocontrolthecolourandpicture.Amini-cameraisconnectedtothefrontoftheglasses.Itmakeseverythinglooklarger.Wordscanalsobeturnedintosound.A:Whatcanthespecialglasses,SuperSee,beusedfor?B:They'reforpeoplewhocan'tseewell.TheycanhelpthemreadbooksandwatchTV.A:Howdotheywork?B:Amini‑cameraisconnectedtothefrontoftheglasses.Itmakeseverythinglooklargerandwordscanevenbeturnedintosound.A:That'scool.Whatelse?B:Oh,peoplecanalsocontrolthecolourandpicture.A:That'samazing!WhatabouttheSmartCookfromChina?Whatcanitdo?B:It'ssousefultoo.Foodiscutandfriedautomaticallybythemachine.Oilandsaltarealsoaddedbyitself.A:Canitmakemanykindsofdishes?B:Yes!Ithasanappwithhundredsofrecipes,soitcanmakemanykindsofmeals.A:That'sgreat!Myparentswouldlovetotakeabreakfromcookingandtryusingit.B:Wow,bothinventionsarereallyhelpfulforpeople!Unit5PowerofIdeasSectionA(2a-2d)LearningObjectives1.Describe3Dprintingprocessusingverbslikedesign,create,send,andproduce.2.Analyzehow3Dprintingworksandevaluateitsimpactondailylifeandmedicine.3.Extracttheworkingprocessof3Dprinterfromlisteningandcompletetheflowchart.4.Appreciatehow3Dprintingisrevolutionizingmanufacturing,medicine,anddailylife.183919031925196419731981planehigh-speedtraincameraTVmobilephonelaptopLookandsayWhenwasthe...invented?Itwasinventedin...cups,models,machineparts2.Becausethe3Dprintercanmakealmosteverythingunderthesun.1.HanLinwenttotheInternationalExhibitionofInventionslastweekend.世间几乎所有东西（习语）Completethesentenceswiththecorrectformsofthewordsinthebox.Thenlistenagainandcheckyouranswers.designedcreatedsentreadproducedElla:Hi,HanLin!DidyougototheInternationalExhibitionofInventionslastweekend?HanLin:Yes,someamazinginventionswereshownfromallovertheworld.Ella:Whatinventiondidyoulikethemost?HanLin:Oh,the3Dprinterwasamazing.Ella:Why?HanLin:Almosteverythingunderthesuncanbemadebyit.Ella:Really?Likewhat?HanLin:Well,allkindsofeverydayobjects.Toys,chairs,tables,andevenhousescanallbemadebythe3Dprinter.Ella:That’scool!HanLin:Yeah.Andinmedicine,forexample,armsandlegs,andevenheartscanbecreatedbythe3Dprinter.Ella:That’sgreat!Howdoesitwork?HanLin:Well,first,theobjectisdesignedonacomputer.Then,afileiscreatedandsenttothe3Dprinter.The3Dprinterreadsthefile,andafterthat,theobjectisproducedbybuildingupplastic.Ella:Isonlyplasticused?HanLin:No,othermaterialscanalsobeusedtoproducethings.Itcanevenmakefood.Ella:Oh,really?I’dlovetotry3D-printedfood!mobilephoneWhatcanitbeusedfor?Itcanbeusedfor/to...studywritingarticleswatchvideosdohomeworkshoponlinestudydohomeworkputbookswritedrawpicturestakenotestakephotoswatchvideossendtextstalkwithothersmakeavideocallA:Whatinventiondoyoulikethemost?B:Ilikethemobilephonethemost.A:Whatcanitbeusedfor?B:Itcanbeusedfortalkingwithothersandsearchingforinformation./Itcanbeusedtowatchvideosandtakephotos.A:Amazing!Isitimportantinyourdailylife?B:Yes,ithelpsmealotandmakesmylifeeasier.A:Whatinventiondoyoulikethemost?B:Ilikethelaptopthemost.A:Whatcanitbeusedfor?B:Itcanbeusedforstudyingandwriting./Itcanbeusedtodomyhomework.A:Fantastic!Isitimportantinyourdailylife?B:Yes,itisveryimportantformystudy.A:Whatinventiondoyoulikethemost?B:Ilikethepencilthemost.A:Whatcanitbeusedfor?B:Itcanbeusedforwritinganddrawing./Itcanbeusedtotakenotes.A:Amazing!Isitimportantinyourdailylife?B:Yes,Iuseiteverydayatschool.Unit5PowerofIdeasSectionA(3a-3d)LearningObjectives1.Extractkeyinfoaboutinventionsusingwh-questionsandpassivevoiceinpasttense.2.Analyzehowtheradiochangedtheworldandevaluatewhatmakesaninventionuseful.3.Completeafactchartanduseittodescribeaninvention’shistoryandimpact.4.Appreciatehowinventionsconnecttheworldandunderstandtheirroleinhumanprogress.Whatcanyouseefromthepicture?古列尔莫・马科尼GuglielmoMarconiReadtheconversation.WhatdoesPeterthinkisthemostusefulinventionofalltime?Peterthinkstheradioisthemostusefulinvention.TheradioGuglielmoMarconi.Itwasinventedin1901.Peoplecouldenjoymusicfromartistsaroundtheworldmuchmoreeasily.Itmadenewsspreadaroundtheworldinseconds.Someotherimportantinventionsweredevelopedbecauseoftheradio.FuXing:Whatdoyouthinkisthemostusefulinventionofalltime,Peter?Peter:Ithastobetheradio.FuXing:Theradio?Why?Peter:Beforetheradiowasinvented,informationtravelledveryslowly.Theworldwasmademuchsmallerbytheradio.Suddenly,newscouldbespreadaroundtheworldinseconds.FuXing:Right.Whowastheinventor?Peter:AnItalianinventorcalledGuglielmoMarconi.Hedevelopedtheideainthe1890s.In1901,aradiomessagewassentacrosstheAtlanticOceanforthefirsttime.FuXing:Wow!Thatwasquiteadistanceatthattime.Peter:

Yeah.Andbecauseoftheradio,someotherimportantinventionsweredevelopedaswell.FuXing:Likethetelevision?Peter:That’sright.Italsohadabigeffectonmusic.Theradiomadeitmucheasierforpeopletoenjoymusicfromartistsaroundtheworld.Ithink...isthemostusefulinvention.Itwasinventedby...Itwasinventedin...Itchangedtheworldbecause...themobilephoneMartinCooperinventedthefirstmobilephonein1973.Itwasinventedin1973.Itmadeiteasierforpeopletocommunicate.Itchangedthewaypeoplesendandreceiveinformation.Ithelpedmakemoderncommunicationfasterandmoreconvenient.What:Who:When:How/Why:Ithink...isthemostusefulinvention.Itwasinventedby...Itwasinventedin...Itchangedtheworldbecause...A:Whatinventiondoyouthinkisthemostimportant?B:Ithinkthesmartphoneisthemostimportant.A:Why?B:BecauseIuseiteveryday.Iuseittocallmyparents,sendmessages,andtakephotos.Ialsouseitforhomeworkandgames.A:Whatdoesitlooklike?B:It’sthinandlight.Ithasabigglassscreenandnophysicalbuttonsonthefront.Youcangetitindifferentcolours.A:Thatsoundscool!Unit5PowerofIdeasSectionA(4a-4c)LearningObjectives1.Identifyandusepassivevoiceinpresent,past,andmodalformstodescribeinventions.2.Compareactiveandpassivevoiceand