初中九年级英语课件When was it inventedSectionA(1a1c)

Unit6

SectionA(1a-1c)TiefoMiddleSchoolChengLingWhenwasitinvented?→n.v.发明Inventor发明者Invention发明

The

many

allhislife.inventorinventedinventions

inventThetelephonewasinventedbyBell.Bellinvented

thetelephoneThecarwasinventedbyKarlBenzKarlBenzinventedthecar.ThetelevisionwasinventedbyBairdBairdinventedthetelevision.一般过去时的被动语态主动语态变为被动语态的步骤:把原句中的宾语转换为主语.2.把动词改为被动形式,即“was/were+过去分词”

.注意be动词要按新的主语的人称和数进行变化,时态要和原来的主动语态的时态保持一致.3.原来主语,如果需要,就放在by后面以它的宾格形式出现.如果没有必要就可以省略.其他的成分

(定语,状语)不变,句式也不能变.Thepassivevoice.被动语态主动语态变被动语态的结构图:Bellinventedthetelephonein1876.ThetelephonewasinventedbyBellin1876.主语谓语动词过去时宾语时间状语主语谓语动词的过去分词宾语时间状语Thepassivevoice.被动语态主动语态改被动语态:Bellinventedthetelephonein1876.wasbyThetelephone

请把下列的主动句变为被动句（注意时态的一致）1.Jackwateredtheflowersyesterday.Theflowerswerewatered

byJackyesterday.

2.Marysenttwoe-mailsyesterday.Twoe-mailswere

sentbyMaryyesterday.4.Edisoninventedthelightbulbin1879.

Thelightbulbwasinvented

byEdisonin1879.3.Hedidn’tseethefilmlastnight.Thefilmwasn’tseenbyhimlastnight.ExerciseLookatthethings.Inwhatorderdoyouthinkthey

wereinvented?1aA:IthinktheTV

wasinvented

beforethecar.B:Well,IthinktheTV

wasinvented

afterthecar.Thecarwasinvented

beforetheTV.GameA:Ithink…wasinventedbefore…B:Well,Ithink…wasinventedafter….Thetelephonewasinvented

beforetheTV.A:Ithink…wasinventedbefore…B:Well,Ithink…wasinventedafter….Thetelephonewasinvented

before

thecomputer.A:Ithink…wasinventedbefore…B:Well,Ithink…wasinventedafter….A:Ithink…

wasinvented

before…B:Well,Ithink…

wasinvented

after….Thetelephonewasinventedbeforethecar.A:Ithink…

wasinvented

before…B:Well,Ithink…

wasinvented

after….Thecarwasinventedbeforethecomputer.A:Ithink…

wasinvented

before…B:Well,Ithink…

wasinvented

after…TheTVwasinventedbeforethecomputer.1bListenandmatchtheinventionswiththeyears.____1876____1885____1927____1971dacb年份的读法两个数字一组，分为前后两组121865eighteensixtyfive1989

千年的读法twothousand2001twothousandandonenineteeneightynine3前两个数字不为零，后两个数字为零。eighteenhundred1900nineteenhundred4非四位数的年份的读法！531fivehundredandthirty-one

twohundredandeightynine289Alice:Wasyourlifeverydifficultwhenyouwereakid?Grandma:Oh,notreally.Why??Alice:Well,youdidn’thavelikeatelephone,right?Grandma:Ofcoursewedid!HowolddoyouthinkIam?Thetelephonewasinventedin1876.Youneedto,Alice!?Alice:Haha!Howaboutcars?Theyweren’tinventedyet,werethey?Grandma:Yes,theywere.Carsin1885.Myfamilyhadacar.Alice:Well,didyouhaveaTV?Grandma:No,wecouldn’taffordone.Theywereinthosedays.TheTVwasinventedaround1927,Ithink.Alice:Well,Iknowthatyoudidn’thaveacomputerbecausewelearnedinschoolthatwereinventedin1971.Grandma:You’reright.ButIhave

onenow!ListenandfillintheblanksmoderninventionstakeahistoryclasswereinventedexpensivepersonalcomputersPairworkA:Whenwasthetelephoneinvented?B:Ithinkitwasinvented

in1876.1c

wasinventedby.Thetelephone_______________Bell.Who

was

thetelephone

invented

by

？LookandSayBellA:Whatisthe_______usedfor?B:Ithinkitisusedfor___________________.talkingwithpeoplewatching

TVShowssearchingtheinformation.drivingtotheotherplacesPairworkNameWhenWhoWhatTheumbrella1000BCLuBan’swifeKeepingouttherainThecamera1839DaguerreTakingphotosThecar1885KarlBenzTravellingThemobilephone1973MartinCooperTalkingwithpeopleA:Whenwastheumbrellainvented?B:Itwasinventedin1000BC.A:Whowasitinventedby?B:ItwasinventedbyLuBan’swife.A:Whatisitusedfor?B:It’susedforkeepingouttherain.Chineseinventionspapermakinggunpowder['gʌnpaʊdə(r)]printing['printiŋ]

compass['kʌmpəs]=

CaiLuninventedthepapermaking.

ThepapermakingCailun.wasinventedbyWhowasthepapermakinginvented

by?ItBiSheng.

wasinventedbyTheyChinesepeople.

wereinventedbyGroupworkPapermaking105ADCaiLunmakingpaperPrintingSongDynastyBiShengMakingbooksPower1000yearsagoIdon’tknowcelebratingCompassHanDynastyIdon’tknowsailingForexample:Paperwasinventedin105AD.ItwasinventedbyCaiLun.Itisusedforwriting.Writing

挑选一件物品，谈谈物品的历史，用处，优点缺点等。TheTVwasinventedin1927.Itwasinventedafterthecar.Itisusedtogetnewsandotherprograms.Itbothhasadvantages(优点)anddisadvantages(缺点).Itisgoodforustorelax,butifwewatchittoomuch.itisbadforoureyes.Guessing--Whatisitusedfor?--Itisusedfor…eatingeattellingthedatetellthedateInterestingInventionseatingeat

tellingthedatetellthedateGuessing--Whatisitusedfor?--Itisusedfor…holdingwaterseeinginthedarkscooping

holdingwaterseeinginthedarkscooping

Guessing--Whatisitusedfor?--Itisusedfor…drawinglines.--Whatisitusedfor?--Itisusedfor…calling.GuessingCrazyinventionsusedfordancingusedfordrivingandflyingusedforwalkingandsingingusedforlivingandwalkingusedfordrivingintheseausedfordrivingCupsfordrinkingteakeyboardDelCtrl+Alt+Del=Reset(重置)一般过去式的被动语态的句式结构1.肯定句：主语+was/were+done（动词的过去分词）ThetelephonewasinventedbyBell.2.否定句：主语+was/werenot+done（动词的过去分词）ThetelephonewasnotinventedbyBell.3.一般疑问句：was/were+主语+done（动词的过去分词）WasthetelephoneinventedbyBell?4.特殊疑问句：特殊疑问词+was/were+主语+done（动词的过去分词）Whowasthetelephoneinventedby?

Searchaninventionyoulikeontheinternet,andthenwriteitdown.

HOMEWORKExercise

(一）单项选择

（

）1.Thekindofcupisused__________drinking.

A.to

B.as

C.by

D.for

（

）2.Thetelephone________bythewell-knownscientist,AlexanderGrahamBell.A.inventedB.InventingC.wasinventedD.invent

（

）3.Ithinktheshortstory_________byLuXun.

A.iswriting

B.iswritten

C.written

D.waswritten

（

）4.--Who________theelectriclightbulb______?

—Edison.

A.was;invented

B.is;invented

C.was;Inventedby

D.did;inventedbyDCDC.Everymorningmyfatherbuysanewspaperonhiswaytowork.Everyeveningmymotherlooksthroughmagazinesathome.Andeverynight,IlookattheposterswithphotosofDavidBeckhamandYaoMingonmybedroomwallbeforeIgotosleep.Canweimaginelifewithoutpaperorprint?Paperwasfirstcreatedabout2,000yearsago，andhasbeenmadefromsilk，cotton，bambooandsincethe19thcenturyfromwood.Peoplelearnedtowritewordsonpapertomakeabook.Butinthosedays,bookscouldonlybeproducedoneatatimebyhand.Asaresult,theywereexpensiveandrare.Andbecausethereweren'tmanybooks,fewpeoplelearnedtoread.ThenprintingwasinventedinChina.Whenprintingwasdevelopedgreatlyatthebeginningofthe11thcentury,bookscouldbeproducedmorequicklyandcheaply.Asaresult,morepeoplelearnedtoread.Afterthat,knowledgeandideasspreadquickly.Todayinformationcanbereceivedonline,downloadedfromtheInternetratherthanfoundinbooks,andinformationcanbekeptonCD-ROMsormachinessuchasMP3players.

Computersarealreadyusedinclassrooms,andnewspapersandmagazinescanalreadybereadonline.Sowillbooksbereplacedbycomputersoneday?No,Idon'tthinktheYaoMingposteronmybedroomwallwilleverbereplacedbyacomputertwometreshigh!()1.Whatdoesthewriterdobeforehegoestosleep?A．Hereadsbook