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高中英语 Unit4Exploring plantsWriting课件 新人教选修9.ppt

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ExperimentreportsNumberthepicturesintheorderyouhearaboutthem.Listentothefirstpartagainandanswerthequestions.2.Arestudentsgoingtodotheexperimentingroupsorindividually?Ingroups.3.Wherearethematerialsthatthestudentsneedtosetuptheexperiment?Onthebench.4.Whatmaterialsdothestudentsneedtosetuptheexperiment?Fourdishesandfourpiecesofclothadishofseedssometapwatersomeboiledwaterandsomecookingoil.ThirdlisteningListentothefirstpartagainandcompletethetableofconditionsthateachdishofseedswasgiven.FourthlisteningNowlistentothesecondpartofthetapeinwhichtheclassdiscussestheresultsoftheexperiment.Completethetableofresults.Listentothesecondpartofthetapeagainanddiscussthequestion:AnexperimentonplantsPart1:Listentoateacher(TH)helpingherclasssetupanexperiment.TH:OKeverybodythismorningwe’regoingtodoanexperimenttofindoutthreeimportantconditionsthatseedsneedinordertostartgrowing.Thematerialsareallonthebench.Choosesomeonefromyourgrouptogoandgetfourdishesandfourpiecesofclothadishofseedssometapwatersomeboiledwaterandsomecookingoil.Lookattheinstructionsontheboard.Let’sreadthroughthem.One:Putthepiecesofclothonthedishesandspreadtheseedsonthecloth.LabelthedishesAtoD.Two:TakeDishAandwettheclothwithtapwaterandplaceitinawell-airedwarmspot–sobythewindowovertherewouldbefine.Three:TakeDishBwetitwithtapwaterandputitinthefridge.Four:TakeDishCandputitnexttoDishA.Donotwaterit.Five:TakeDishDandwateritwiththeboiledwater.ThendropasmallamountofoilontotheclothandputitnexttoDishC.Six:Leavethemallforafewdays.OKnowyoucangoaheadandsetuptheexperiment.Part2:Listentotheclassdiscussingtheresultsoftheexperiment.Studentsi