Unit6SectionA1a-2d课件人教版英语九年级全册

Unit6Whenwasitinvented?SectionA(1a—2d)一、功能：

Talkaboutthehistoryofinventions.二、常用词汇和表达：

Learntousethewordsandphrases(heel,scoop,electricity,style)三、文化知识：

Knowmoreaboutthehistoryofinventionsandusethemcorrectly.LearningGoalspc=personalcomputerIthinkcomputeristhemosthelpfulinvention.BecauseithelpsmesearchtheinformationthatIneed.ItwasinventedbytwoyoungmenfromAmerica.KarlBenz

invented

thecar.______wasinvented

by_______.ThecarKarlBenzBell

invented

thetelephone.__________wasinvented

by___.ThetelephoneBellLookatthethings.Inwhatorderdoyouthinktheywereinvented?A:IthinktheTVwasinvented

beforethecomputer.B:Well,IthinktheTVwasinvented

afterthecomputer.Lookatthethingsbelow.Inwhatorderdoyouthinktheywereinvented?拖动图片到序号旁1aIthinktheTVwasinventedbeforethecar.Well,IthinktheTVwasinventedafterthecar.Ithinkthetelephonewasinventedbeforethecomputer.Well,Iagreewithyou.Ithink…wasinventedbefore/after...Well,I…Thefirsttelephone

_____________(byBell)in1876.Bell

inventedthefirsttelephonein1876.wasinventedKarlBenzinventedthefirstcarin1885.Thefirstcar_____________(byKarlBenz)in1885.

wasinventedThefirsttelevisionwasinvented(byJ.L.Baird)in1927.J.L.Bairdinventedthefirsttelevisionin1927.ListeningListenandmatchtheinventionswiththeyears.1b___1876___1885___1927___1971dacbStudentB,coverthedates.StudentA,askStudentBwhenthethingsinthepicturein1bwereinvented.Thenchangerolesandpracticeagain.Practicing1cWhenwasthetelephoneinvented?Ithinkitwasinventedin1876.______Shoeswithspecialheels_______shoeswithlights_______icecreamscooprunsonelectricity2a.Listenandnumbertheinventionsintheorder.3122b.Listenagainandcompletethechartbelow.InventionWhatisit/aretheyusedfor?shoeswithspecialheels_____thestyleoftheshoesshoeswithlightsseeing___________hoticecreamscoop______reallycoldicecreamchanginginthedarkservingInventionInventorTimeUsage(用途)telephoneBell1876makingphonecallscomputeranAmerican1976gettinginformationlightbulbEdison1830givinglightcameraaFrenchman1837takingpicturesbikeanEnglishman1839ridingbasketballJames1861playingMakeconversationsaccordingtothetable.whowhenwhatPractice:--What’situsedfor?--It’susedfor…--WhatisthisinEnglish?--It’sa…2d.Role-playtheconversationWhatisitusedfor?Pairwork:seeinginthedarktravelingtalkingwithoutmeetingrelaxingA:Whatisthetelephoneusedfor?B:Ithinkitisusedfor

talkingwithpeople.cuttingkeepingwarmInquiryintoknowledgebytranslation.(合作探究)1.Whenwasthetelephoneinvented?Ithinkitwasinventedin1876.____________________________________________①invent为______词，其名词为__________，“发明家”为__________。②was/were+________构成________时态的被动语态。Edison,agreat__________,_________many_____________duringhislife.动inventioninventorV-ed过去inventorinventedinventions电话是什么时候发明的？我认为在1876年。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.一般过去时的被动语态1.概念：一般过去时的被动语态表示主语是过去某个动作的承受者。2.构成：主语＋was/were＋动词的过去分词。Somenewcomputerswerestolenlastnight.昨天晚上有几台新电脑被盗了。9/24/20242.It’susedforservingreallycoldicecream.【经典习题】完成句子：邮票是用来发送信件的。Stampsare_____________letters.【要点点拨】beusedfordoingsth.

表示“被用于干某事”，意思与beusedtodosth.相同。如：Thecameraisusedfortakingphotos.=Thecameraisusedtotakephotos.

usedforsending9/24/2024【拓展延伸】◆beusedassth.

表示“被用作某物”。如：Englishisusedasthesecondlanguageinmanycountries.◆beusedbysb.

表示“被某人使用”，后接动作的执行者。如：Thesetextbooksareusedbystudents.◆be/getusedtodoingsth.

表示“习惯于做某事”。如：Sheisusedtorunningeverymorning.◆usedtodosth.

表示“过去常常做某事”。如：MissLiusedtodanceafterwork.Summary:Whathaveyoulearnt?1.句型whenwasthecarinvented?

和Ithinkitwasinventedin1876.的运用。

2.能听懂年份的读法。Homework:Findouttheinformationaboutthemandwritedownth