Unit 4 Amazing Science Topic 1 Section D 课件 2025-2026学年仁爱科普版九年级英语上册

Unit4AmazingScienceTopic1

Whenwasitinvented?SectionDLearningaims一、掌握以下单词：explorer,mark,man-made,system等。二、引导学生自主归纳本单元语法——一般过去时的被动语态。三、能够根据不同的阅读目的运用阅读策略获取信息，如猜测词汇意思、

略读、寻读等，培养“读”的语言能力。ReviewA:________________________A:________________________A:________________________B:It'smadefromgrapes.B:It'susedfordrinking.B:It'sdevelopedin1982.A:________________________B:It'sinventedinFrance.Whatisredwinemadefrom?Whatisredwineusedfor?Whenwasredwinedeveloped?Wherewasredwineinvented?

PassiveVoice(Ⅱ)TheradiowasinventedbyGuglielmoMarconiin1895.Whenwasthedigitalcameradeveloped?GrammarWhatisarocketusedfor?Wherewasitdeveloped?Itwasdevelopedinthe1970s.Itisusedforsendingsatellitesorspaceshipsintospace.ItwasdevelopedinJapan.一般过去时的被动语态was/weredone()1.Abigsupermarket_____inourcitylastyear.A.isbuiltB.werebuiltC.wasbuilt()2.Couldyoutellmewhotheradio____by?A.inventsB.inventedC.wasinvented()3.Manytreesandflowers_____inourschoollastyear.A.haveplantedB.wereplantedC.planted()4.Thechildren____swimlastmonthandtheycanswimverywellnow.A.aretaughtB.weretaughtC.weretaughtto()5.Itissaidthatpotatochips_____aboutonehundredyearsago.A.wereinventedB.inventedC.areinventedCBCACPaper____________(invent)byCaiLuninancientChina.I__________(teach)inthemiddleschoolinChina.Theschoollibrary__________(close)yesterdaybecauseoftheheavyrain.Thesenewcomputers__________(notuse)veryoften.Theyarestillgood.Alotoftrees_________(plant)inourcitylastspringtoimprovetheenvironment.Kangkang___________(wash)vegetablescarefullyeveryday.Theletter________(send)bymybrothertwodaysago,butIhaven'treceivedit.Mobilephones______________(notallow)intheexamroom.It'sastrictrule.Ayoungwriter___________(write)thefamousstoryin2020.Ourclassroom____________(clean)everymorningbythestudentsonduty.wasinventedteachwasclosedarenotusedwereplantedwasheswassentarenotallowedwroteiscleaned先观语态再观时态1.PeopleusedradiostolearnEnglishinthepast._____________________________________________2.Jackshowedthephototome.______________________________________________3.TheyraisedmuchmoneyfortheProjectHope.______________________________________________4.IoftenhearMarysingEnglishsongsathome._______________________________________________5.Wemustn’tthrowlitteraround.________________________________________________6.PeoplecanvisitplanetslikeMars._________________________________________________RadioswereusedtolearnEnglishbypeopleinthepast.ThephotowasshowntomebyJack.MuchmoneywasraisedfortheProjectHopebythem.MaryisoftenheardtosingEnglishsongsathomebyme.Littermustn’tbethrownaroundbyus.PlanetslikeMarscanbevisitedbypeople.感官动词变被动要还原toFunctionsIwishIcouldgointospacesomeday.Ihopeyourdreamwillcometrue.It’ssaidthatheinventedmorethantwothousandthingsduringhislife.Inventingisinterestingandexcitingandeveryonecanbeaninventor.我希望有一天能进入太空。我希望你梦想成真。据说他一生中发明了两千多样东西。发明是有趣和兴奋的，并且每个人都能成为发明家。Fast-readingHowdoesthewriterstartthepassage?______A.GivinganexampleB.ListingnumbersC.ShowinganopinionD.Askingaquestion1a[Task2]Dividethetextinto3parts.DCareful-reading1aReadandanswerthequestion.1.Howdidtheearlyexplorersknowwheretheywere?2.What’sthedisadvantageofusingthestarsasguidingmarks?Usingstars,theycouldfindoutwheretheywere.Itdidn'tworkwellattimes.Becauseinthedaytimeorinbadweather,wecouldn'tseestars.Careful-reading1aReadandanswerthequestion.3.WhatisaGPS?Isitusefultouse?4.WhatdoyouthinktheGPSwillbeusedforinthefuture?Itislikeaman-madestar.Yes,itis.Becausewecanuseitatanytime,inanyplaceandinanyweathertofindoutourposition.①Itwillhelpself-drivingcarsrunsafely.②Itwillbeusedinfarmingsothatfarmersdon'tneedtowatervegetablesthemselves.③Itcanbeusedforhelpingpeopleinneed,becausepoliceordoctorscanfindthemquickly.Post-reading1aFillintheblanks.ThankstoGPS,wecanexactlyknoww_______wearenow.GPSislikeaman-made“star”.Itcanbeu______inanyplaceandanyweatherconditiontofindoutourp_________.Inthepast,theearlyexplorershadtousestarsinthes_____totellthemwheretheywere.However,thismethoddidn’tworkwellwhentheweatherwasbad.SoGPSisagreatinventionthatcanhelphumanstobettere_________ourplanetsandd__________whereweare.hereositionsedkyxploreiscoverProjectDescribingYourInvention1.ThisisKangkang’sinvention.Lookattheinformationandthepicture.Whatdoyouthinkofit?Discusswithyourpartners.Name:Plar(plan-car)Inventor:KangkangYear:2014Use:Bothflyinganddriving2.Designyourowninvention.Drawapictureofitandwritedowntheinformationaboutit.Name:____________Inventor:___________Year:_____________Use:______________

3.Showthepictureofyourinventionanddescribei