冀教版英语八年级下册Unit4Lesson31教案Lesson31SurpriseYourFriend！Step1、Revision?SingthesonginLesson28.?Askagroupofvolunteerstoacthowtokeepthecandleburning.?Describeittotheclass.Step2、ReadingReadtheletterandfindoutthestepstodotheexperiment.“First…，Next…”Thenaskyourclass“Whydoesthecardboardholdthewater?”Step3、DiscussionDiscussthereasonsof“thecardboardcanholdthewater”withyourclass.Doyouthinkscienceisinteresting？Wouldyouliketodoanotherone？Haveatryplease.Cometo“LET'SDOIT！”Classclosing1、Finishofftheactivitybook.2、Trytodoanotherexperimentthatyouareinterestedin.3、PreviewLesson32.Languagepoints1、First，youneedtogetready.need1）vt.Idon'tthinkyouneedtoworryaboutthis.Theseflowersneedswatering.Theyneedourhelp.2）v.aux.NeedIgosoearly？-MustIfinishmyhomeworkthismorning，mum？-No，youneedn't.
