新目标九年级unit9Section A 3a-4课件

Unit9Whenwasitinvented?SectionAPeriod3,Objectives,Tolearntounderstandandusepassivevoice(questionsandstatements)Tolistenandspeakabouthelpfulinventionsandannoyinginventions,A:Whenwasinvented?B:ItwasinventedinA:Whowasitinventedby?B:ItwasinventedbyA:Whatistheusedfor?B:Theisusedfordoing,Review,bulblightbulbmicrowavemicrowaveoven,n.电灯泡blb电灯泡n.微波makrwev微波炉vn,Pairwork(3a:P70),Helpfulinventions:vacuumvkjmcleaner(真空吸尘器),soundproofdoor(隔音门)andwindow,car,computer,faxmachineAnnoyinginventions:air-conditioner,truck,telephone,junkfood,icecream,Makealistoffivehelpfulinventionsandfiveannoyinginventions.,Sentencepattern:Whatisthisinthepicture?Whatisitusedfor?Doyouthinkitishelpful/annoying?,Dialogue1:A:Whatisthis?,B:Itisanalarmclock.A:Whatisitusedfor?B:Itisusedforwakingpeopleupinthemorning.A:Doyouthinkitisannoying?B:Sometimes,whenIwanttogoonsleep.,Dialogue2:A:Whatisthis?,B:Itisalightbulb.A:Whatisitusedfor?B:Itisusedforgivinglight.A:Doyouthinkitishelpful?B:Yes,Ithinkso.BecauseIalwaysdohomeworkandreadbooksintheeveningbyitslight.,Dialogue3:A:Whatisthis?,B:Itisamicrowaveoven.A:Whatisitusedfor?B:Itisusedforheatingcoldfoodandcookingmeals.A:Doyouthinkitishelpful?,B:Yes,Ithinkso.BecausemyparentsareverybusyandIcanuseittocookmealsbymyself.,Pairwork(3b:P70),Discussyouropinionsin3awithyourpartner.,Dialogue1:A:Whatdoyouthinkisthemosthelpfulinvention?B:Ithinkthemosthelpfulinventionisthevacuumcleaner.,A:Whyisthat?B:Well,itcanhelpmecleanthefloorwhenmotherasksmetodothecleaning.,Dialogue2:A:Whatdoyouthinkisthemostannoyinginvention?B:Ithinkthemostannoyinginventionistheair-conditioner.A:Whyisthat?,B:Well,Ifeeluncomfortableintheroomwithanair-conditioner.,A:Whatdoyouthinkarethemostannoyingorhelpfulinventions?B:Ithinkthetruckisthemostannoyinginventionandthesoundproofdoorandwindowisthemosthelpfulinvention.,Dialogue3:,A:Whyisthat?B:Thetrucksalwaysmakenoisesandpeoplecantsleepwell.Iftheyhavethesoundproofdoorandwindow,peopleneedntworryaboutthenoisesanymore.,Groupwork(4:P70),Whatinventionswouldyouchoosewithyouifyouarealoneonatinyisland?Tellyourpartnerwhatyouchoseandwhy.,A:IdliketohavesomematchesbecauseIcouldlightafiretokeepwarm.B:Yes,butthatsnotgoingtohelpyouleavetheisland.Ithinkitwouldbebettertohaveacellphone.,Dialogue1:,A:IdliketohaveatelescopebecauseIcouldlookfar.B:Yes,butthatsnotgoingtohelpyouleavetheisland.Ithinkitwouldbebettertohaveasignallamp.,Dialogue2:,1.Weusethe_tocount.Thecalculator_2.Weuse_tomakethefoodhot.Themicrowaveoven_,calculator,isusedforcounting.,themicrowaveoven,用合适的词填空。,isusedfor,makingthefoodhot.,课堂练习,3.The_isusedfor_.(talkwithpeople)4.Who_lightbulbs_by?5.Thecomputer_1976.,talkingwithpeople,telephone,were,invented,wasinventedin,1.Whoinventedthe_?2.MrsBrownboughtanew_lastweek.3.Idlikeapairof_.4.The_isthemosthelpfulinvention.5.Therearethreesmall_intheradio.,根据图片提示，在横线上填入适当的单词完成句子，每空一词。,1题图,2题图,3题图,4题图,5题图,calculator,microwaveoven,slippers,lightbulb,batteries,根据括号内要求完成句子，每空一词。1.Carswereinventedin1885.(对划线部分提问)_werecarsinvented?2.JulieThompsoninventedelectricslippers.(改为被动句)Electricslippers_JulieThompson.,When,wereinventedby,3.Weallnoticedherfaceturnred.(改为被动句)Herface_turnredbyusall.4.ThelightbulbwasinventedbyTomasEdison.(对划线部分提问)_thelightbulbinventedby?5.Therefrigeratorisusedtokeepfoodfresh.(改为同义句)Therefrigeratorisused_foodfresh.,wasnoticedto,Whowas,forkeeping,1.Lastweekend,Jack_toabirthdaypartyandhehadalotoffun.(2010吉林长春)A.inviteB.wasinvitedC.invitedD.isinvited,实战中考,2.Look,whatanoldpalace!Itlookssogreat!Yeah,it_nearly800yearsago.(2010吉林省通化市)A.wasbuildingB.wasbuiltC.hasbuiltD.isbuilt3.LiuXiang_byhiscoachtotrainregularly.(2010天津)A.advisedB.advisesC.wasadvisedD.beadvised,1.Iopenthedoor.,Thedoorisopenedbyme.,2.Heoftenhelpshomelesspeople.,Homelesspeopleareoftenhelpedbyhim.,3.Ihandedoutsomepapersjustnow.,Somepaper