unit6sectiona（1a-1c）-【精彩课堂】九年级英语全册课（人教版）

SectionAUnit6

Whenwasitinvented?1a-1cLearning

Aims一、功能：

Talkaboutthehistoryofinventions.二、常用词汇和表达：

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

Knowmoreaboutthehistoryofinventionsandusethemcorrectly.afamousAmericaninventoraninventorinventionmorethan1,000inventionsEdisoninventedthelightbulbin1879.Lightbulbwasinventedin1879byEdison.一般过去时的被动语态的结构为“was/were+及物动词的过去分词”。Leadin

FourgreatinventionsinChinapaper-makingprintinggunpowdercompassChineseinventedthefourgreatinventions.Thefourgreatinventions________________Chinese.wereinventedbyChineseancientinventions.InventionPapermaking.madebyCaiLunInventionMovable-typePrintingmadebyBiShengChineseancientinventions.InventionCompassmadeby

?InventionGunpowermadebyalchemists(accidental意外的)DiscussionWhenweretheyinvented?Whoweretheyinventedby?papermaking\105B.C.

printing\1041-1045compass11thCenturygunpower9thCenturyHanDynastySongDynastyWhenwas...invented?Whowas...inventedby?Whatis...usedfor...?Itwasinventedin....Itwasinventedby....Itisusedfor....Ifyouareaskedtochoosethreeproducts,whatwillyouchoose?Theseinventionshaschangedourlifealot.Doyouknowthehistoryoftheseinventions?KarlBenz

invented

thecar.______wasinvented

by_______.ThecarKarlBenzBell

invented

thetelephone.__________wasinvented

by___.ThetelephoneBellLookatthethings.Inwhatorderdoyouthinktheywereinvented?A:IthinktheTVwasinvented

beforethecomputer.B:Well,IthinktheTVwasinvented

afterthecomputer.1aLookatthethingsbelow.Inwhatorderdoyouthinktheywereinvented?Discussthemwithyourgroup.Thennumberthem[1-4].2314Listenandmatchtheinventionswiththeyears.______1876______1885______1927______1971dacb1a1b1b1.Whenwerethecarsinvented?A.In1876.B.In1885.C.In1927.2.Whatwasinventedin1876?A.Thetelephone.B.TheTV.C.Thecar.3.Whenwerethepersonalcomputersinvented?A.In1885.B.In1927.C.In1971.Listenagainandanswerthequestions.a.needtotakeahistoryclassb.Myfamilyhadacar.c.havemoderninventionsd.wereinventede.couldn’taffordone.Alice:Wasyourlifeverydifficultwhenyouwereakid?Grandma:Oh,notreally.Why?Alice:Well,youdidn’t___________likeatelephone,right?Grandma:Ofcoursewedid!HowolddoyouthinkIam?Thetelephonewasinventedin1876.You_________,Alice!Alice:Ha,ha!Howaboutcars?Theyweren’tinventedyet,werethey?Grandma:Yes,theywere.Carswereinventedin1885.__________.Alice:Well,didyouhaveaTV?Grandma:No,we_________.Theywereexpensiveinthosedays.TheTVwasinventedaround1927,Ithink.Alice:Well,Iknowthatyoudidn’thaveacomputerbecausewelearnedinschoolthatpersonalcomputers_________in1971.Grandma:You’reright.ButIhaveonenow!cabed

Alice:Wasyourlifevery_________whenyouwereakid?Grandma:Oh,_________.Why?Alice:Well,youdidn’thavemoderninventionslikeatelephone,right?Grandma:Ofcoursewedid!HowolddoyouthinkIam?Thetelephone___________in_____.Youneedtotakea_______class,Alice!

Alice:Haha!Howabout____?Theyweren’tinventedyet,werethey?Grandma:Yes,theywere.Carswereinventedin_____.Myfamilyhadacar.

Alice:

Well,

did

you

have

a

____?Grandma:

No,

we

couldn’t

______

one.

They

were________

in

those

days.

The

TV

was

invented

around

______,

I

think.

Alice:

Well,

I

know

that

you

didn’t

have

a

________because

we

learned

in

schoolthatpersonal

computers

were

invented

in

______.

Grandma:

You’re

right.

But

I

have

one

now!

difficultnotreallywasinvented1876historycars1885TVaffordexpensive1927computer1971Listenandfillintheblanks.While-listeningAccordingtowhatyouhavelistened,answerthequestionsbelow.

1.Whatdidthegrandmahavewhenshewasyoung?2.Whydidn’ttheyhaveatelevisionatthattime?3.Doesgrandmahavepersonalcomputernow?

Telephoneandcar.

Becauseitwasexpensive.

Yes,shedoes.

StudentB,coverthedates.StudentA,askStudentBwhenthethingsinthepicturein1bwereinvented.Thenchangerolesandpracticeagain.1cA:Whenwasthetelephoneinvented?B:Ithinkitwasinventedin1876.Whenwasthecarinvented?Itwasinventedin1885.WhenwastheTVinvented?Itwasinventedin1927.Whenwasthecomputerinvented?Itwasinventedin1971.看图用beusedfor造句。computertelephonescissorsTVkeyboardA:When____thetelephone_______?B:Ithinkitwas________

_____1876.wasinventedinventedinA:Whenwasthecarinvented?B:Ithinkit___________1930.

A:When____theTV_________?B:Ithinkitwasinvented

in1927.A:Whenwasthecomputerinvented?B:Ithinkit_____________in1976.PracticeCompletethesentencesandthenpracticeinpairs.wasinventedinwasinventedwasinventedPairworkNameWhenWhoWhatTheumbrella1000BCLuBan’swifeKeepingouttherainThecamera1839DaguerreTakingphotosThecar1885KarlBenzTravellingThemobilephone1973MartinCooperTalkingwithpeopleA:Whenwastheumbrellainvented?B:Itwasinventedin1000BC.A:Whowasitinventedby?B:ItwasinventedbyLuBan’swife.A:Whatisitusedfor?B:It’susedforkeepingouttherain.PairworkA:Whenwasthe…invented?B:Itwasinventedin…A:Whowasitinventedby?B:Itwasinventedby…?A:Doyouknowwhatitisusedfor?B:Itisusedfor...KarlBenz

in1885

in1971JohnAtanasoffin1876BellJ.L.Bairdin1927in1839LuisChineseinventionspapermakinggunpowder['gʌnpaʊdə(r)]printing['printiŋ]

compass['kʌmpəs]=

CaiLuninventedthepapermaking.

ThepapermakingCailun.wasinventedbyWhowasthepapermakinginvented

by?ItBiSheng.

wasinventedbyTheyChinesepeople.

wereinventedby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.Language

pointsThepassivevoice.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

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.Exercise1.invent

v.

发明

指经过认识和实践创造出前所未有的事物。►Edisoninventedthelightbulb.爱迪生发明了电灯泡。invention和inventor都是名词，

前者意为“发明”，后者意为“发明家”。LanguagepointsLanguagePointsdiscover,invent和find都是动词,它们的词义相近,但是有区别:★discover意为“发现”,指发现某种本来存在,但以前未被发现或未为人所知的事物或现象。►Thelostbikewasdiscoveredatthebusstop.

丢了的自行车发现在公共汽车站那儿。►LaterIdiscoveredthathewassokind.

后来我发现他如此善良。知识链接★invent

意为“发明”,指发明以前不存在的东西。►Doyouknowwhoinventedthecomputer?

你知道谁发明的电脑吗？★find意为“找到,发现”,指偶然发现或几乎没有困难地发现。►Ifoundsomeoldphotosinthatdrawer.

我在那个抽屉里发现了一些旧照片。

discover,invent和find我都学会了!本课句型Summaryheel,electricity,style,scoop.Structure:Passivevoiceofthepasttense1.A:Whenwasthecarinvented?B:Itwasinventedin1885.2.A:Whataretheyusedfor?B:They’reusedforseeinginthedark.Keywords:Keysentences:(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;inventedbyDCDCExercises二.根据句意和所给汉语提示,完成下列单词的拼写。1).Edison_________theelectriclamp.2).Ilostmynecklacelastnight.Ihaven’t________it.3).Who___________Americafirst?4).Thetelephone_______________in1876.5).Childrenalsoneedtime________(玩耍).inventedfounddiscoveredtoplay

was