Unit6 SectionA 1a-1c 课件 人教版新目标英语 九年级全一册

Unit6Whenwasitinvented?SectionA（1a—1c)）Manytreesareplantedbypeopleeveryyear.

主动语态变被动语态的结构图:主语谓语宾语时间状语主语谓语动词的过去分词宾语时间状语Step1:Review

主语+be(am/is/are)+done(过去分词)+（by+动作执行者）一般现在时的被动语态：Peopleplanttreeseveryyear.把主动语态改为被动语态1.Theyplayfootball

onSunday._______________________________2.Lucydoesthehomeworkintheevening._______________________________3.Theyoftenusecomputersinclass._______________________________4.WemakethesemachinesinBeijing.____________________________Footballisplayed(bythem)onSunday.Thehomeworkisdone(byLucy)intheevening.Computersareoftenused(bythem)inclass.Thesemachinesaremade(byus)inBeijing.一般过去时被动语态：主语+be(was/were)+done（过去分词）+（by+动作执行者）Bellinventedtelephonein1876.被动：TelephonewasinventedbyBellin1876.WhataretheFourGreatInventions发明inancient(古代的)

China?Doyouknow?Step2.Leadin

Talkaboutinventions.inventv.发明invention(s)n.发明物inventorn.发明家competitor

参赛者visitor

游客actor男演员

Chinesefourgreatancientinventions

古代的发明compass指南针()gunpowderPrinting(BiSheng,intheyearbetween1004to1048)papermaking造纸(AD105CaiLun)['kʌmpəs]Whichonedoyouthinkisthemosthelpfulinourdailylife?ModerninventionslaptopcarTVmobilephonecameraclockTask1

Lookatthethingsbelow.Inwhatorderdoyouthinktheywereinvented?Discussthemwithyourgroup.Thennumberthem[1-4](1=first,4=last)

1

2

34Step3PresentationA:IthinktheTVwasinvented

beforethecar.B:Well,IthinktheTVwasinventedafterthecar.TputerTVA:Ithinkthe…wasinventedbeforethe….B:Iagree./Idisagree.Ithinkthe…wasinventedafterthe….carclockA:Ithinkthe…wasinventedbeforethe….B:Idisagree.Ithinkthe…wasinventedafterthe…./Iagree.telephonemobilephoneA:Ithinkthe…wasinventedbeforethe….B:Ithinkso./Idon’tthinkso.Ithinkthe…wasinventedafterthe….

1b

Listenandmatchtheinventionswiththeyears.abcdWhenwasthe...invented?

1876188519271971acbdTask2ListeningListeningListenandnumbertheinventions[1-3]intheorderyouhearthem.2a___shoeswithspecialheels___shoeswithlights___hotice-creamscoop,runsonelectricity132InventionWhatisit/aretheyusedfor?shoeswithspecialheels________thestyleoftheshoesshoeswithlightsseeing___________hotice-creamscoop________reallycoldice-creamListenagainandcompletethechart.2bchangingservinginthedarkThefirstinventionisshoeswith________.Peoplealwayshittheirtoeson__________onthewaytothebathroomatnight.Sopeoplecanusethemfor________inthe______.Listenagainandfillintheblanks.somethingseeingdarklightsThesecondinventionisaspecialice-cream______.Itrunson_________andbecomeshot.It’s_____forservingreally_____ice-cream.scoopelectricityusedcoldThelastinventionisshoeswithspecial_____.Peoplecanmovetheheels_____and______.Youcan_____theheelsifyouaregoingtoa______or______themifyouarejustgoingoutfor_________.heelsdownupraisepartylowershoppingTask3Pair