仁爱九年级Unit 4 Topic 1 Section D

Unit4AmazingScienceTopic1Whenwasitinvented?SectionD•What’situsedfor?•It’susedforlisteningtomusic.•What’sitmadeof?•It’smadeofplastic.•Wherewasitinvented?•ItwasinventedinKorea.•Whenwasitinvented?•Itwasinventedin1998.•What’situsedfor?•It’susedforcommunicatingeasily.•What’sitmadeof?•It’smadeofplasticandmetal.•Wherewasitinvented?•ItwasinventedinAmerica.•Whenwasitinvented?•Itwasinventedin1973.Whatmethoddidyouusetofindyourlostcellphone?•GPSislikeaman-madestar.Wecanuseitatanytime,inanyplaceandinanyweathertofindoutourposition.Theearlyexplorersusedthestarsaslandmarkstoknowwheretheywereandinwhichdirectiontheyweregoing.Thismethodworkedwellatnightaslongastheweatherwasgood.Butitdidn’tworksowellduringtherestofthetime.Let’susetheGPS.n.探险者，勘探者•1.Howdidtheearlyexplorersknowwheretheywere?•Theyfoundoutwheretheywerebyusingstars.•2.What’sthedisadvantageofusingthestarsasguidingmarks?•Itsdisadvantageisthatitdidn’tworkwellwhentheweatherwasbadandthestarscouldnotbeseen.•3.WhatisaGPS?Isitusefultouse?•Itislikeaman-madestar.Wecanuseitatanytime,inanyplaceandinanyweathertofindoutourposition.Itisveryuseful.•4.WhatdoyouthinktheGPSwillbeusedforinthefuture?•…ReadthepassageanddiscussthequestionsonPage88.Keywords•explore•explorer,mark•findout,in…direction•workwell,aslongas•therestofthetime•solve,like,use,theshapeof•greatinventionn.标示，记号，符号v.做记号，做标记Retellit!根据首字母提示，完成短文。ThankstoGPS,wecanexactlyknoww_____wearenow.GPSislikeaman-made“star”.Itcanbeu____inanyplaceandanyweatherconditiontofindoutourp________.Inthepast,theearlyexplorershadtousestarsinthes____totellthemwheretheywere,however,thismethoddidn’tworkwellwhentheweatherwasbad.SoGPSisagreatinventionthatcanhelphumanstobettere________ourplanets.hereositionsedkyxploreGrammarPassiveVoice(Ⅱ)TheradiowasinventedbyGuglielmoMarconiin1895.Whenwasthedigitalcameradeveloped?Wherewasitdeveloped?Whatisarocketusedfor?Itwasdevelopedinthe1970s.ItwasdevelopedinJapan.Itisusedforsendingsatellitesorspaceshipsintospace.FunctionsIwishIcouldgointospacesomeday.Ihopeyourdreamwillcometrue.It’ssaidthatheinventedmorethantwothousandthingsduringhislife.Inventingisinterestingandexcitingandeveryonecanbeaninventor.Passivevoicewas/were+done()1.Abigsupermarket_____inourcitylastyear.A.isbuiltB.werebuiltC.wasbuilt()2.Couldyoutellmewhotheradio____by?A.inventsB.inventedC.wasinvented()3.Manytreesandflowers_____inourschoollastyear.Theymadeourschoolmorebeautiful.A.haveplantedB.wereplantedC.planted()4.Thechildren____swimlastmonthandtheycanswimverywellnow.A.aretaughtB.weretaughtC.weretaughtto()5.Itissaidthatpotatochips_____bymistakeaboutonehundredyearsago.A.wereinventedB.inventedC.areinventedCBCACGrammarexercise1.Youarelate,allthetickets__________(sell)outanhourago.2.Thistypeofcellphone____________(make)inShenzhen.3.I_________________(notinvite)toyesterday’sparty.4.________thosemachines__________(check)thismorning?5.Manytreesandflowers______________(plant)inourschoollastyear,andtheymadeourschoolabeautifulgarden.weresoldweremadewere/was+v.的过去分词wasn’tinvitedWerecheckedwereplanted1.PeopleuseradiostolearnEnglishinthepast._____________________________________________2.Jackwillshowmethephoto.______________________________________________3.TheyhaveraisedmuchmoneyfortheProjectHope.______________________________________________4.IoftenhearMarysingEnglishsongsathome._______________________________________________5.Wemustn’tthrowlitterabout.________________________________________________6.PeoplecanvisitplanetslikeMars._________________________________________________RadioswereusedtolearnEnglishinthepast.Thephotowillbeshowntome.MuchmoneyhasbeenraisedfortheProjectHope.MaryisoftenheardtosingEnglishsongsathome.Littermustn’tbethrownabout.PlanetslikeMarscanbevisited.ChangethefollowingsentencesintoPassiveVoice.()1.Hurryup,you____onthephone.A.WantedB.waswantedC.arewanted()2.Somestories_____thechildrenbytheteachereveryday.A.istoldforB.aretoldforC.aretoldto()3._____thathehasstudiedabroadforfiveyears.A.ItissaidB.ItsaysC.Thatissaid()4.Thewindow____fiveminutesago.A.iscleanedB.wascleanedC.canbecleaned()5.Thechildren______bytheteachersatschool.A.takecareofB.aretakencareC.aretakencareofCCABCChoosethebestanswer.()6.Ihavenoideawhat______whileIwasasleep.A.happenedB.washappenedC.happens()7.Insomecountries,tea_____beforemeals.A.isservingB.isservedC.served()8.Thiskindofbooks______well.A.doesn’tsellB.isn’tsellingC.aren’tsold.()9.I______tenminutestodecidewhichsentencewasrightbytheteacher.A.gaveB.wasgivenC.wasgiving()10.Teachers______ineverypartoftheworld.A.areneedingB.areneededC.willneedABABBProject(1)ThisisKangkang’sinvention.Lookattheinformationandthepicture.Whatdoyouthinkofit?Discusswithyourpartners.Name:Plar(plan-car)Inventor:KangkangYear:2014Use:Bothflyinganddriving2.Designyourowninvention.Drawapictureofitandwritedowntheinformationaboutit.Name:____________Inventor:___________Year:_____________Use:______________Project（2）DescribingYourInvention3.Showthepictureofyourinventionanddescribeittotheclass.4.Discussingroupstodecidewhichisthemostuseful/interesting/funnyinvention.W