九年级英语：Unit9_When_was_it_invented_Section_B课件人教版新目标.ppt

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1、Let’smakeupsomepuzzlesHereisabox.Youcanuseittocookmanykindsofdeliciousfood,suchasfish,chicken,meatandrice.Youcanalsouseittomakecolddishandfoodhotinafewminutes.Let’smakeupsomepuzzlesHereisanotherboxwithabeautifulglassface.ItlookslikeaTV,butitisn’taTV.Itcanbeusedforworkingvery

2、fast.Itcanhelpyoustudyorwork.Thislittlethinghasgotnumbersfrom0to9.Itisverysmall,soyoucanputitintoyourpocket.Whereveryougo,youcanuseittotalktoyourfriendsandyourfamiliesfaraway.Hereisabigbox.Itcanmakeyourclothescleanandyourhouseworkeasy.Withitshelpyoucanhavemoretimetorelaxorto

3、work.PlayaguessinggameWasthe…inventedin…/…ago?dateTheabacuswasinventedinthesixthcenturybyChinesepeople.Theumbrellawasinventedabout4,000yearsagoinAssyria,ChinaandEgypt.Thebinocularswasinventedin1854byGalileoPorroinItaly.Thecamerawasinventedin1827byJosephNicephoreNiepcewhotook

4、thefirstpicture.Thebicyclewasinventedin1880sinEngland.ChallengeyourthinkingWhatwouldyoudoifyouarealoneonatinyisland?Choosefiveinventionsyouwouldliketohaveontheislandwithyou.Tellthegroupwhatyouchoseandwhy.A:I’dliketohavesomematchesbecauseIcouldlightafiretokeepwarm.B:Yes,butth

5、at’snotgoingtohelpyouleavetheisland.Ithinkitwouldbebettertohaveamobilephone.Whatwouldyouchooseifyouwereontheislandalone?MatchesFoodClothesTelephoneMp3MoneyTastes1.Canyoutellmefivetastes?2.Whichfoodissour?3.Whichfoodissweet?4.Whichfoodisbitter?5.Whichfoodissalty?6.Whichfoodi

6、shot?Soursweetbitterhotsaltyorangeyogurtapplebananateacoffeesaltpizzapepperonioncrispyandsalty-Howdoesittaste?-Ittastes…sour-Howdoesittaste?-Ittastes…sweet-Howdoesittaste?-Ittastes…sweet-Howdoesittaste?-Ittastes…-Whatkindoffooddoyoulike?-Ilikefoodthattastes…crispysaltysoursw

7、eetThehistoryofchips1.Idon’tlikeeatingchocolate.Thetasteistoo_______.2.Momaddedsaltbutitstillwasn’t_____enough.3.Ipreferlemonstooranges.Ilikethe_______taste.4.Shelikes________cookies.Theyarehard,dryandeasilybroken.crispysweetsaltysourcrispysweetsaltysourListening(2a,2b:P71)T

8、hepotatochipswereinventedbymistake.2.Theywereinventedin1863.3.Thecustomerth