广东省中山市九年级英语全册UNIT9WHENWASITINVENTED第二课时完整课件人教新目标版

Unit9

Whenwasitinvented?

SectionAPeriod2

Pairwork(3a:P70)

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.Dialogue1:A:Whatdoyouthinkisthemosthelpfulinvention?B:Ithinkthemosthelpfulinventionisthevacuumcleaner.Pairwork(4:P70)A:Whyisthat?B:Well,itcanhelpmecleanthefloorwhenmotherasksmetodothecleaning.Dialogue2:A:Whatdoyouthinkisthemostannoyinginvention?B:Ithinkthemostannoyinginventionistheair-conditioner.A:Whyisthat?A:Whatdoyouthinkarethemostannoyingorhelpfulinventions?B:Ithinkthetruckisthemostannoyinginventionandthesoundproofdoorandwindowisthemosthelpfulinvention.Dialogue3:soundproofdoorandwindowA:Whyisthat?B:Thetrucksalwaysmakenoisesandpeoplecan’tsleepwell.Iftheyhavethesoundproofdoorandwindow,peopleneedn’tworryaboutthenoisesanymore.Groupwork(4:P70)

Whatwouldyoudoifyouarealoneonatinyisland?A:I’dliketohavesomematchesbecauseIcouldlightafiretokeepwarm.B:Yes,butthat’snotgoingtohelpyouleavetheisland.Ithinkitwouldbebettertohaveacellphone.Dialogue1:A:I’dliketohaveatelescopebecauseIcouldlookfar.B:Yes,butthat’snotgoingtohelpyouleavetheisland.Ithinkitwouldbebettertohaveasignallamp.Dialogue2:1.Whoinventedthe________?2.MrsBrownboughtanew________________lastweek.3.I’dlikeapairof___________.4.The_________isthemosthelpfulinvention.5.Therearethreesmall________intheradio.Ⅰ.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calculatormicrowaveovenslipperslightbulbbatteries

Ⅱ.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.Whenwereinventedby3.Weallnoticedherfaceturnred.(改为被动句)Herface_____________turnredbyusall.4.ThelightbulbwasinventedbyTomasEdison.(对划线部分提问)________theligh