科普版九年級(jí)英語(yǔ)上冊(cè)《nit4AmazingScienceTopic1WhenwasitinventedSectionB》課教案21

1、Unit4Topic1SectionB教課方案Teachingaims1、掌握所學(xué)的單詞：bulb，airplane.hard-wearingKorea.2、進(jìn)一步學(xué)習(xí)一般過(guò)去時(shí)的被動(dòng)語(yǔ)態(tài)。能正確使用一般過(guò)去時(shí)的被動(dòng)語(yǔ)態(tài)來(lái)描述事物的發(fā)明時(shí)間與發(fā)明者。Teachingkeypintsanddifficultpoints1、正確使用一般過(guò)去時(shí)的被動(dòng)語(yǔ)態(tài)。Teachingsteps.一Revision（示SA3a圖復(fù)習(xí)一般過(guò)去時(shí)的被動(dòng)語(yǔ)態(tài)）。T:Whatisit？Ss:Itsa.T:Whenandwherewasisitinvented？Ss:ItwasinventedinT:Whatisituse

2、dfor？Ss:Itsusedfor2.（學(xué)生問(wèn)答形式老師：Asweknow,theMP3playerwasinventedinKoreain1998,anditsusedforlisteningtomusic.Right?OK.Letslookattheseinventions,pleaseonetotalkabout.3.S1.4S2二示圖（快速閃過(guò)lightbulb）導(dǎo)入1a.T：Canyouseewhatitis？Ss:Itsa.Thatsright，itsabulb，andMichaelandJanearetalkingaboutit.Lookatthepicture，Wherear

3、etheytalking？Whatelsearetheytalkingabout?Letslistentothetapeandchoosetheanswers（.播音1次，聽(tīng)1a完成1b，核對(duì)答案,），LetslistenagainandfindoutWhenweretheinventionsinvented？andwhoinventedthern？Writedowntheanswerswiththecompletesentences.三學(xué)生齊讀1a后完成1c（.邊對(duì)答案邊用被動(dòng)語(yǔ)態(tài)說(shuō)出答案：Thelightbulbwasinvented1by再聽(tīng)1a2次回答以下問(wèn)題個(gè)別生答核對(duì)齊讀答案）四依

4、據(jù)1c表格內(nèi)容，展現(xiàn)1c要點(diǎn)（板書）一般過(guò)去時(shí)的被動(dòng)語(yǔ)態(tài)。（點(diǎn)出重難點(diǎn)一般過(guò)去時(shí)的被動(dòng)語(yǔ)態(tài)的結(jié)構(gòu)與用法）.Fromthetableabove，Whenwasthebulbinvented？.（示圖演練1a要點(diǎn)句型：一般過(guò)去時(shí)的被動(dòng)語(yǔ)態(tài)句型。練完bulb，示圖練）e.gA：Whenwasthebulbinvented？B：Itwasinventedin1879.A:Theradiowasinvented(invent)byGuglielmoMarconiin1895.A：Whoinventedtheairplane？B：ItwasinventedbyWilburandOrvilleWright.

5、T：Onemoresentence,Forexample：Todayisonduty，andhe/shecleanedtheclassroomthismorning.CanyouusethePassiveoiceVtochangethesentence？Ss：Theclassroomwascleanedbythismorning.五依據(jù)1c，操控1d（知識(shí)的拓展）：分小組談?wù)?c.小組代表發(fā)音（如例）其余小組搶答.（3組發(fā)音）六練習(xí)牢固1、P8422、用所給中文完成以下句子，注意動(dòng)詞的合適形式。在平常生活中，我們都廣泛使用手機(jī).Mobilephones_byusinoureverydaylif

6、e.第一條牛仔褲是在1855年生產(chǎn)出來(lái)的。Thefirstjeans_in1855.ThomasEdison在他的一世中發(fā)了然2000多件東西._twothousandthings_.ThomasEdison_.過(guò)去的飛機(jī)與此刻的不一樣樣.Theairplaneinthepast_todays.聽(tīng)聞WrightBrothers發(fā)了然飛機(jī)._theairplane_byWrightBrothers.七Summary2Welearnsomewordsandphrases(SayinEnglish)bulbairplanehard-wearingbeusedfordoing/todomorethanbedifferentfromduringoneslifeWecanUsetheSimplePastPassiveoice:Vwas/were+P.P.Talkabouttheinventorsofsomegreatinventions.HomeworkRead1aagain.Memoriz