2023学年完整公开课版Unit9whenwasitinvented(一)

Unit9whenwasitinvented九年级英语全册A:Doyouhaveacomputernow?B:Yes,Ihave.A:Didpeoplehaveacomputer40yearsago?B:Ithinktheyhadn’t.A:Ithinkthetelephonewasinventedbeforethecar.B:Well,Ithinkthetelephonewasinventedafterthecar.invent发明，创造sweet甜的salty咸的crispy脆的sour酸的potato土豆chip片mistake错误bymistake错误地thin薄的，细的Wordsintheend最后，终于chef厨师sprinkle撒（粉末状物）；洒（液体）abacus算盘century世纪telescope望远镜camera照相机

WordsA:Whenwasthetelephoneinvented?B:Ithinkitwasinventedin1876.年代（1876）Listenandmatchtheinventionsandthedates.Listening____1876____1885____1927____1971____1976daecbSpeakingAskandanswerwiththepictures.A:Whenwasthetelephoneinvented?B:Ithinkitwasinventedin1876.Findoutwhenthesethingswereinvented,andthenwritethemdown.Writing16century,inChinaabout4,000yearsagoinAssyria,ChinaandEgyptWritingBinoculars:1854IgnatioPorroinItalyCamera:1827byJosephNicephoreNiepcewhotookthefirstpictureBicycle:1880sinEnglandFindoutwhenthesethingswereinvented,andthenwritethemdown.Whenwasthecarinvented?Itwasinventedin1885.Whenwereelectricslippersinvented?Theywereinventedlastyear.Whoweretheyinventedby?TheywereinventedbyJulieThompson.Whataretheyusedfor?They’reusedforseeinginthedark.被动语态(passivevoice)：1．基本概念：被动语态是动词的一种特殊形式，表示句子中的主语是动作的承受者，一般来说，只有及物动词才有被动语态。2．结构：be+p.p例如：EnglishisspokeninBritain,theU.S.andsomeothercountries.讲英语的国家有英国、美国和其他一些国家。Hislegwasbrokeninanaccident.他的腿在一次事故中折断了。Writethemunderthecorrectpictures.sweetsaltycrispysoursaltysour

sweetsweetWritethenameofadifferentfoodaftereachword.sweetcrispysaltysourapple,orange,cake,honeyFrenchfried,salad,lettuce

Frenchfried,olives,pizza,popcornPickle,grapefruit

ListenandcircleT(fortrue)orF(forfalse).

Listening1.Thepotatochipswereinventedbymistake.TF2.Theywereinventedin1863.TF3.Thecustomerthoughtthepotatoesweren’tthinenough.TF4.Thecustomersaidtheyweren’tsaltyenough.TF5.Georgewantedtomakethecustomerhappy.TF6.Thecustomerwashappyintheend.TF√√√√√√Listenandcompletethesentences.

ListeningThehistoryofchips____________thatpotatochipswereinventedbymistake?Chips____________.ByachefcalledGeorgeCrum.Theywereinventedin_____GeorgeCrumcookedthemforalongtimeuntilthey__________.Andhesprinkledlotsofsaltonthemsotheywere__________.

Didyouknowwereinvented1853

werecrispyreallysalty

WritingFillintheblankswiththewordgiven.crispsweetsaltysourIdon’tlikeeatingchocolate.Thetasteistoo______.2.Momaddedsaltbutitstillwasn’t____enough.3.Ipreferlemonstooranges.Ilikethe____taste.4.Shelikes_____cookies.Theyarehard,dryandeasilybroken.sweetsaltysour

crispySpeakingMak