Unit 6 Section A（1a-1c）課件2024-2025學年人教版九年級英語

Unit6Whenwasitinvented?SectionA1a~1cLearningaims1’(1).Learnsomenewwordsandphrases.(2).Learnthegrammar:thePassivevoice(pasttense).(3).Talkabouttheinventions.單詞學習：根據(jù)音標學單詞。(語音測試)[hi?l][sku?p][,?lek'tr?s?t?][sta?l]['pra:d?ekt]heeln.鞋跟，足跟scoopn.勺，鏟子electricityn.電，電能stylen.樣式；款式projectn.項目，工程instyle流行outofstyle/date過時electric[?'lektr?k]adj.電的；電動的即時演練：1.Thisdressis___thisyear,andIreallywanttogetone.A.indangerB.introubleC.instyleD.outofstyle2.

—Ihearyourgrandpahasanoldcupinyourhome.

—Yes.It____drinkingtealongagoandmygrandpa_______drinkteawithitwhenhewasyoung.A．wasusedto;wasusedtoB．usedfor;usedtoC.wasusedfor;wasusedtoD．wasusedfor;usedtoCDWhataretheFourGreatInventionsinancientChina?LeadinChinesefourgreatancientinventionscompassgunpowderprintingpapermakingModerninventionscalculator→n.v.發(fā)明Inventor發(fā)明者Invention發(fā)明

The

many

allhislife.inventorinventedinventions

inventThetelephonewasinventedbyBell.Bellinvented

thetelephoneThecarwasinventedbyKarlBenzKarlBenzinventedthecar.ThetelevisionwasinventedbyBairdBairdinventedthetelevision.12341aNumberthem[1-4](1=first,4=last).1bListenandmatchtheinventionswiththeyears.-------1876--------1885--------1927--------1971dacbPracticethesentences.Pictured:Thetelephonewasinventedineighteenseventy-six(1876).Picturea:Carswereinventedineighteeneighty-five(1885).Picturec:TheTVwasinventedaroundnineteentwenty-seven(1927).Pictureb:Thepersonalcomputerswereinventedinnineteenseventy-one(1971).Listenandfill.Alice:Wasyourlifeverydifficultwhenyouwereakid?Grandma:Oh,notreally.Why?Alice:Well,youdidn’thavemoderninventionslikea

,right?Grandma:Ofcoursewedid!HowolddoyouthinkIam?Thetelephonewasin1876.Youneedtotakeahistoryclass,Alice!Alice:Haha!Howabout

?Theyweren’tinventedyet,werethey?Grandma:Yes,theywere.Carswereinventedin1885.Myfamilyhadacar.telephonecarsAlice:Well,didyouhaveaTV?Grandma:No,wecouldn’t

one.Theywereexpensiveinthosedays.TheTVwasinventedaround1927,Ithink.Alice:Well,Iknowthatyoudidn’thavea

becausewelearnedinschoolthatpersonalcomputerswereinventedin1971.Grandma:You’reright.ButIhaveonenow!affordcomputerA:Whenwasthe_______invented?B:Ithinkitwasinventedin______.Pairwork(1c:)1885187619271971KarlBenz

inventedthecar.______wasinvented

by_______.ThecarKarlBenz觀察與思考：Edison

invented

thelightbulb.Thelightbulbwasinvented

byEdison.Bell

invented

thetelephone.___________wasinvented

by___.ThetelephoneBellThepassivevoice.被動語態(tài)被動語態(tài)的構(gòu)成:be動詞+(及物動詞的)過去分詞

一般現(xiàn)在時一般過去時am(is,are)+donewas(were)+done{Thecarwasinventedin1885.Thepassivevoice.被動語態(tài)主動語態(tài)變被動語態(tài)的結(jié)構(gòu)圖:Bellinventedthetelephonein1876.ThetelephonewasinventedbyBellin1876.主語謂語動詞過去時賓語時間狀語主語謂語動詞的過去分詞賓語時間狀語學生討論，教師點撥6'觀察句子，總結(jié)一般過去時的被動語態(tài)結(jié)構(gòu)：（1）Thetelephonewasinventedin1876.（2）Thetelephonewasnotinventedin1876.

（3）Wasthetelephoneinventedin1876?（4）eg:Whenwasthetelephoneinvented?

肯定句：主語+was/were+及物動詞過去分詞+(by...)否定句：主語+was/were+not+及物動詞過去分詞

+(by...)一般疑問句：Be(Was/Were)+主語+及物動詞過去分詞+（by...）特殊疑問句：特殊疑問詞+was/were+主語+及物動詞過去分詞(+by...)?學以致用完成下列句子：1Ithinkthecomputer_________(invent)beforetheTV.2Theglassis_____(break).It________(break)bylittleTomthismorning.3Mikewasn,tathomeyesterday.He________(ask)tohelpwithJenny,sEnglishwasinventedbrokenwasbrokenwasasked【辨析】invent，discover,find,create

教師點撥：1.invent(v.)發(fā)明；創(chuàng)造invent

指發(fā)明創(chuàng)造出自然界本來不存在的東西，如工具、方法、手段、汽車、電器、合成材料等。Bell

inventedthetelephone.貝爾發(fā)明了電話。Smith

invented

anewteachingmethod.史密斯發(fā)明了一種新的教學方法。2.discover是“發(fā)現(xiàn)”的意思，是指發(fā)現(xiàn)原來就有而一直沒被發(fā)現(xiàn)，如發(fā)現(xiàn)電、煤、石油等礦藏及新星、星系或科學真理等。Recentlytheyhavediscoveredacomet.最近他們發(fā)現(xiàn)了一顆彗星。3.find的意思是“尋找”，強調(diào)找的結(jié)果，并不指發(fā)現(xiàn)。I'vetriedtofindanothercopybutcouldn'tfindone.我試圖再找一本，但沒能弄到。4.create指有目的地把原材料制成新產(chǎn)品，也指創(chuàng)造出原來不存在的或與眾不同的事物。Mancreateshimself.人類創(chuàng)造了自己。Anovelistcreatescharactersandaplot.小說家塑造人物并設計情節(jié)。根據(jù)語境提示，用invent,discover，find或create的適當形式填空，完成句子。1.When_____thestreamengine（蒸汽機）_________?2.Ican’t____mybike,I’mlookingforit.3.Scientistsarenowtryingto________ifthisispossible.4.Doyouknowwho_________theplane？5.He________quiteanumberofwonderfulcharactersinhisplay.即時演練：.was

invented

finddiscoverinventedcreated1.Anewlibrary_____inourschoollastyear.A.isbuilt

B.wasbuiltC.builtD.build2.

These