Module_5_A_Lesson_in_a_Lab_课文教案课件123123

Module5AlessoninaLab外研社高中英语第一册newwords1.了解与学习与科技、实验有关的词汇和知识。⒉提升对科学实验的兴趣，形成正确的科学态度。TeachingAimslabtesttubebalancevocabularyrelatedtoscienceandexperimentstesttubeholder试管架/夹Bunsenburnercrucible本生灯（煤气喷灯）坩埚Itisapieceofelectricalequipment.ReadthewordstogetherThestonecontains(含有)potassiumcalciumThewheelismadeofaluminum.zincoxideWecanreachaconclusionthatitisimportantforustoreadbooks.Nailsareeasytorustinthedampair.Waterboilsat100°C.conclusionaimelectricalrustboils•Whentheironisheated(加热）itwillWhentheironiscooled(遇冷）itwillexpandcontractHowmuchdoyouknowaboutgeneralscience?Howmanystatesdoesmatterexistas?Useyourmind!liquidHowmanystatesdoeswaterexistas?oxygenmetalHowmuchdoyouknowaboutgeneralscience?•1.Waterexistsasasolid,aliquidandagas.•2.Whenyouheatametal,itexpands.•3.Steelisamixtureofironandothersubstancs.•4.Two-thirdsoftheearth'ssurfaceiswater.•5.Thedistanceofthesunfromtheearthis150,500,500kms.•6.Theearthsi4.6billionyearsold.•7.Theearthisforty-ninetimeslargerthanthemoon.•air-oxygen•contract-expand•earth-sun-moon•gas-liquid-solidThingscanbedividedintothreekinds,natural,man-made,andeithernaturalorman-made.NaturalwoodMan-madeglassEithernaturalorman-madewaterelectricityironmetalsteelairglass1.Whichofthefollowingarenatural?Electricity,iron,somemetalsandairarenatural.2.Whichareman-made?Steel,somemetalsandglassareman-made.3.Whichcanbeboth?Electricityandsomemetals(alloysforexample)Homework•完成导学案•背诵单词：liquid,expand,contract,substance,•mixture,oxygen,•electricity,conclusion,•potassium,sodium,calcium,aluminium,zinc,•rust,boilStepIPre-readingPutthesewordsinthecorrectordertodescribethestagesofascientificexperiment.conclusionaimresultmethod•Whenwedoanexperiment,weshouldfirstofallhavean______.Weshoulduseproper_________.Weshouldfindoutthe_________andgeta________.aimmethodsresultconclusionScanning:ListentopassageAquicklyandchoosethebesttitleforit.TheDifferentUsesofMetalsTheReactionofMetalsTheReactionofMetalswithOxygenPassageACarefulReading;ReadpassageAcarefullyandanswer:•1.Whichofthemetalsinthetablereactsthemostwithoxygenandwater?2.Whathappenswhenyouheatcalciuminoxygen?3.Whichmetalsreactwithsteam?4.Doesironhaveasloworfastreactionwithsteam?5.Doescopperreactwithwater?Potassium,calciumandsodium.Itburnstoformanoxide.Magnesium,aluminiumandzinc.Ithasaslowreaction.No,itdoesn’t.PassageB:Someimportantwordsabouttheexperiment:•apparatus(仪器,设备)•holder(台、架等)支持物,固定器•cottonwool棉絮•bunsenburner本生灯（煤气喷灯）IronindryairPut/push/leaveIroninair-freewaterHalf-fill/boil/makesure/put/add/keep-outofIroninordinarywaterHalf-fillandadd/leaveStageA(Startingexperiment)StageB(1weeklater)StageC(Result)________________________________________---nails---nails---nails---nails---nails---nails________________________________________________cottonwoolcottonwoolIrondoesn’trustOillayerwaterOillayerwaterIrondoesn’trustwaterwaterIronrusts•Consolidation1Answerthesequestionsingroupsoffour.1)Inthefirstpartoftheexperiment,whatistheuseofthecottonwoolinthetesttube?2.)Inthesecondpart,whatisthereonthesurfaceofthewaterinthetesttube?3)Whatistheuseoftheoil?4)Whyarethenailsinthetesttubewithordinarywaterrusty?Thereisoilonthesurfaceofthewaterinthistesttube.Theoilcankeepairoutofwater.Thecottonwoolcankeepairdry.Ironreactswithoxygeninordinarywaterandformsrust.Stepsoftheexperimentreport:•Aim•Method•Result•ConclusionLet’sdoasimpleexperimenttotestifmagnesiumcanburnintheairandwriteashortreport:MagnesiumcanburnintheairLet’sdoasimpleexperimenttotestifmagnesiumcanburnintheairandwriteashortreport:Aim:Methods:Result:Conclusion:TofindoutifMagnesiumburnsintheair1)useapairoftongstopickupsomemagnesium2)lightitMagnesiumisburningwithabrightflameintheairMagnesiumcanburnintheairLanguagepointsInthePassageAandPassageB:1．Itishardtothinkofaworldwithoutmetals.很难想像一个没有金属的世界。[句式分析]本句属于“Itis＋形容词＋不定式”句式。其中it是形式主语，不定式短语是真正的主语。①Apparentlyit'scheapertoflythangobytrain.显然，乘飞机比坐火车便宜。②Itisimpossibleforhimtosleeponsuchasmallbed.他睡在这么小的床上是不可能的。③It'sverykindofyoutohelpus.＝Youareverykindtohelpus.你帮助我们真是太好了。(1)Itis＋adj.＋forsb.todosth.(该句式中，作表语的形容词只能说明不定式的行为性质和特点，不能说明不定式的执行者。常见的这类形容词有：easy，important，difficult，hard，possible，impossible，necessary等。)(2)Itis＋adj.＋ofsb.todosth.(该句式中，作表语的形容词表达不定式的逻辑主语的品行、性格或性质。常见的这类形容词有：kind，nice，good，honest，careful，careless，clever，wise，stupid，foolish，rude，polite，impolite等。)②(2012年济南模拟)________wascareless________himtoleavehisumbrellainthestore.A．It；forB．It；ofC．That；forD．That；of[解析]it为形式主语，真正的主语为toleavehisumbrellainthestore；且careless描述的是人的品质、性格，故用of。因此选B项。[答案]B•4.Didtheydothisalongtimeage?•No,theydidn’t【原句呈现】1.Itishardtothinkofaworldwithoutmetals.※.thinkof:“想象”;(here)“想出（主意,办法等)”2.Thereactionofmetalswiththesesubstancescanbeputinorder.※put…inorder“把…按顺序摆放/排列”e.g.Pleaseputthesebooksinorder.•4.Didtheydothisalongtimeage?•No,theydidn’t※keep…outof3.Addsomeoiltothewater.Thiswillkeepairoutofthewater.“使…不进入”；“防止进入”防止空气入水4.atthetopof在……的顶部atthebottomof在……的底部5.Half-fillatesttubewithwater.“在试管儿里加一半水。”※fill…with…“往……里加/充满half-fill…with“往…加一半的…….Homework:1.EverydayEnglish(P48)2.VocabularyAndSpeaking(P42)3.Lookatthedecim