2023学年完整版《M5ALessoninaLab（Period3）》设计

《Module5ALessoninaLab》教学设计Period3ReadingandVocabularyTeachingGoals:1.LetSsmasterhowtoreadapassage;2.LetSsmastersomewordsandphrases;3.GetSstotalksomethingaboutscienceexperimentsTeachingprocedures:Step1Lead-inandVocabulary1.Todaywearegoingtotalkaboutscienceexperiments.Whatdoyouthinkofwhenyouseealab?(Allowthemtosayouttheirthoughtseveniftheydon’tknowhowtosayinEnglish.) testtube balance alcoholburner(UsethepicturestointroducesomewordstotheSs.)2.(GroupWork)AskSshowtodoanexperiment?Putthefollowingwordsinorder.conclusionaimresultmethodSuggestedanswers:Whenwedoanexperiment,weshouldfirstofallhaveanaim.Weshouldusepropermethods.Weshouldfindouttheresultandgetaconclusion.Step2ReadingPurpose:ToimproveSs’readingskills.1.(IndividualWork)Fastreading:ReadPassageAandchoosethebesttitleforit.Suggestedanswers:ThereactionofMetals2.Carefulreading:(IndividualWork)(1)Readthepassageagain.Answerthesequestions. a.Whichofthemetalsinthetablereactsthemostwithoxygenandwater? b.Whathappenswhenyouheatcalciuminoxygen? c.Whichmetalsreactwithsteam? d.Doesironhaveaslowoffastreactionwithsteam? e.Doescopperreactwithwater?Suggestedanswers:①Potassium,calciumandsodium②Itburnstoformanoxide③Magnesium,aluminiumandzine.④Ithasaslowreaction.⑤No,itdoesn’t.(Dosomeexplanationsaboutthemifnecessary)(2)ReadPassageBandfillinthetable.Suggestedanswers:IronindryairIroninair-freewaterIroninordinarywaterStageA(Startingexperiment)cottonwoolnailsoillayerwaternailswaternailsStageB(1weeklater)cottonwoolnailsoillayerwaternailswaternailsStageC(Result)IrondoesnotrustIrondoesnotrustIronrusts(3)ReadPassageBagain.Completethesentences. ①Inthefirstpartoftheexperiment,the____isdry,notwet. ②Itshowsthatiron______________whentheairisdry. ③Inthesecondpartoftheexperiment,youmust_____thewatertomakesurethereisno____init. ④Youadd_________tothewaterbecausethiskeeps____outofit. ⑤Itshowsthat_____doesnotrustinwaterthathasno_____init.Suggestedanswers:①air②doesnotrust③.boil,air④someoil,air⑤nail,air3.Postreading(GroupWork)AskSstowatchtheexperimentcarefully.Andthentrytoretellthestagesoftheexperiment.ReportAim:_______________________________________________________________________________________________Apparatus:__________________________________________Result:_______________________________________________________________________________________________Conclusion:_________________________________________Method:____________________________________________ _____________________________________________Suggestedanswers:_____________________________________________ReportAim:Tofindoutifironrusts(a)inpurewater;(b)inair-freewater;(c)indryairApparatus:3cleanironnails;testtubes;wood,oil;testtubesholderResult:ThenailsdonotrustinthesecondandthirdtubesConclusion:Irondoesn'trustinair-freewaterordryairbutinpurewater.Method:First,putsomeironnailsatthebottomofthreetesttubes.Second,half-fillthefirsttwotesttubeswithwater.Third,addsomeoiltothewaterintothesecondtesttube.Fourth,pushawooddownthethirdtube.Fifth,leavethetubesforoneweek.Step3LanguagestudyPurpose:TolettheSsunderstandthepassagewell.1.(PairWork)Vocabulary:AsktheSstofinishActivity6onpage46.(Callbacktheanswersafterseveralminutes.)Reference:React:haveeffecton(ofonesubstanceappliedtoanother)Steam:gasfromboilingwaterOil:liquidwhichdoesnotmixwithwater,obtainedfromanimals,plantsorfoundinrock undergroundBoil:(ofwaterorotherliquid)reachthetemperatureatwhichchangetogasoccursScientific:of,for,connectedwith,usedinscienceExperiment:testcarriedoutcarefullyinordertostudywhathappensandgainnew knowledgeFloat:beheldupinair,gasoronthesurfaceofliquid;movewithliquidorairForm:giveshapeorformto;make,produceDissolve:(ofaliquid)soakintoasolidsothatthesoliditselfbecomesliquid2.Groupwork.Ssaredividedintogroupsoffour.Eachgroupissupposedtoreadthrougheachpart,andthendiscussthem.(1)Whenweusemetals,itisimportanttoknowhowtheyreactwithdifferentsubstances,forexample,waterandoxygen.使用金属时，要了解金属和不同的物质如何发生反应，例如，水和氧气。这一点很重要。reactvi.&vt.①作出反应，反应。后接介词to。EgHowdidshereacttothenews?②影响，起作用。后接介词on/upon。EgThetworeactuponeachother.③抗拒，反抗。后接介词against。EgChildrentendtoreactagainsttheirparentsbygoingagainsttheirwishes.④起反作用，反过来起作用。常接介词on/upon。EgUnkindnessoftenreactsontheunkindperson.⑤[化]起化学作用，[物]反应。后接介词with/on。Ega.Howdoacidsreactonmetals?b.Anacidcanreactwithabasetoformasalt.(2)Tofindoutifironrustsindryair.弄清楚铁在干燥的空气中是否生锈。findout指经过探听、询问、调查之后，才发现某事或事情的真相。Eg①Hehasfoundoutthemanwhostolethewatch.②Willyoutrytofindoutwhenthetrainsleave?[辨析]◆find有偶然发现某物的意思EgOnherwayhome,Timfoundawalletlyingontheground.◆discover表示发现存在的但以前不为人知的事物，也可表示发现已为人知的事物的新的性质或用途，这种发现可能是有意的，也可能是无意的。EgMadameCuriediscoveredtheelementofradium.(3)Putthesewordsinthecorrectordertodescribethestagesofascientificexperiment.按正确的顺序排列下面词汇，描述一项科学实验的各个阶段。put…inthecorrectorder按正确的顺序排列。inorder按顺序。Eg①Thereactionofmetalswiththesesubstancescanbeputinorder.②Puteverythingintheroominorder.(4)Now,what’stheaimofthisexperiment,ZhouKai?这次实验的目的是什么，周凯？aim①vt.&vi.把……瞄准；把……对准掷向；意欲，旨在。Ega.Thisanti-smokingcampaignismainlyaimedatyoungteenagers.b.Mybrotheraimstobeanovelist.②n.目标，目的。常接介词of。EgItisnowouraimtosetupafactory.5.No,weneedrathermorethanthat–abouttwoandahalfgrams.我们所需要的要大大超过那些——大约两克半。rather是程度副词，修饰比较级more。例如：Eg①Fortheold,livinginthecountryisrathermorecomfortablethanincity.②Thiscomputerisrathermoreexpensivethanthatone.※注意：与rather近义的quite,fairly,very,too不能修饰比较级。可修饰比较级的词有：◆abit,alittle,rather,much,far,byfar,many,alot,lots,agreatdeal,any,still,even等。◆还可以用表示倍数的词或度量名词作修饰语。Eg①Tomisfarclevererthananyotherboysintheclass.②Sami