Lesson25Let’sDoanExperiment!

1、Lesson25LetsDoanExperiment!,冀教版九年级Unit5LookintoScience,土桥中学王榕,1.能正确理解运用correct,method,force,besure,fill.with,cover.with,turn.upsidedown等单词及短语的用法。2.能够边做边用英语描述本课的实验。3.学会依据实验，辨别是非。,Learninggoals（学习目标）,Learnthenewwordsingroups.Thenshowyourpronunciation.(小组内互相帮助，学习新单词，并展示合作学习成果）Listentothetapeandcircleth

2、enewwordsinthetext.Trytounderstandthenewwordsandtext.（听录音，划单词，初步理解文章大意及新单词的用法）01.swf,过目不忘,1.Weshoulddothis_（实验）outside!2.I_（装满）thejarwithwater.3.Letstestwhichtheoryis_（正确的）.4.Wemustuse_（科学的方法）tosolvetheproblem.5.The_（力量）oftheairkeepsthewaterinthejar.6.Iturnthejar_downandIthinkthewaterwill_out.7.I_（断

3、定）thatthe_（压力）oftheairisstrongerthanIthought.,experiment,fill,correct,scientific,force,conclude,你记住了吗,method,pressure,upside,pour,fillwith用把装满,turnupsidedown把颠倒,pourout涌出,（朗读课文，组内合作完成任务）,1.WheredoesDannythinktheyshoulddotheexperiment?Dannythinkstheyshoulddotheexperimentoutside.2.Howtodotheexperiment

4、?Fillajarwithwater.Coverthetopwithapieceofcardboard.Turnthejarupsidedown.Takeyourhandoffthecardboard.3.WhatisJennysidea?Isshesureofhertheory?Jennythinksthewaterwillstayinthejar.Sheissosureofhertheory.,besureofsth.对有把握besuretodosth.一定（要做某事）besurethat+从句确信1.Areyousure_it?2.Besure_gettoschoolontime.3.I

5、msure_heisright.,读一读议一议,coverwith用把盖上,takeoff把从拿开,of,to,that,（再次大声朗读，组内合作，探究问题）,4.WhydoesDannyputonhisraincoat?Becausehethinkshewillgetwet.5.WhatdoesDannyconclude?Airisstrongerthanhethought.6.Whatkeepsthewaterinthejar?Theforceoftheair/theairpressure,读一读议一议,三读课文,找出下列词组和句子，并写出其意思。fillwith2.turnupsided

6、own3.pourout4.scientificmethod5.coverwith6.besureofsth7.takeoff8.theforceoftheair1.Icoverthetopwithapieceofcardboardandholditthere.2.Theforceoftheairkeepthewaterinthejar.3.Itissostrongenoughtoholdthewater.4.IamsosureofmytheorythatBriancandotheexperimentandIknowyouwontgetwet.,找一找,用把装满,把颠倒,科学的方法,涌出,用把

7、盖上,把从拿开,对有把握,空气的压力,Letsdotheexperimentingroups.OnegivesinstructionsinEnglish.Anotheronefollowstheinstructions.Theothersobservewhatwillhappen.Thentalkaboutyourobservationsingroups.Andwritedowntheresultoftheexperiment.,Thecardboardwillkeepthewaterinthejar.,做一做,用正确的词组完成短文。DDanny，JennyandBriandoanintere

8、stingexperiment.First,Brian_thejar_water,then_thetop_apieceofcardboard.Whenhe_thejar_and_hishand_thecardboardslowly.Dannythinksthewaterwill_.ButJenny_thatthewaterwillstayinthejarandDannywillnot_.Whosetheoryis_?Aftertheexperiment,They_thatthe_oftheairhelpsthecardboardholdthewaterinthejar.Itisstrongenoughtoholdthewater.Theairisstrongerthanwethought.,fills,with,covers,with,turns,down,upside,练一练,pourout,issure,getwet,correct,conclude,force,takesoff,Experienceisthebestteacher.