广东省中山市九年级英语全册 Unit 9 When was it invented第二课时精品课件 人教新目标版.ppt

unit9whenwasitinvented sectionaperiod2 pairwork 3a p70 helpfulinventions vacuumcleaner soundproofdoorandwindow car computer faxmachineannoyinginventions air conditioner truck telephone junkfood icecream 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 b well ifeeluncomfortableintheroomwithanair conditioner a whatdoyouthinkarethemostannoyingorhelpfulinventions b ithinkthetruckisthemostannoyinginventionandthesoundproofdoorandwindowisthemosthelpfulinvention dialogue3 soundproofdoorandwindow a 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 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