2019-2020学年高中英语 Module 5 A Lesson in a Lab Section

Module5ALessoninaLabSectionⅠIntroduction&ReadingandVocabulary课前自主预习课堂合作探究课文预读释疑原文再现PassageAItishardtothinkof①aworldwithoutmetals.Differentmetalshavedifferentuses②，forexample，steelisused③incars，andironisusedinelectrical④equipment⑤.Whenweusemetals，itisimportanttoknowhowtheyreact⑥withdifferentsubstances⑦，forexample，waterandoxygen⑧.Thereaction⑨ofmetalswiththesesubstancescanbeputinorder⑩.Hereisatablewiththemetalsthatreactmostatthetop⑪，andthemetalsthatreactleastatthebottom.Itishardto...中it是形式主语，真正的主语是tothinkof...。Whenweusemetals是时间状语从句，主句是itisimportanttoknowhowtheyreact...，其中it是形式主语，动词不定式短语toknowhowtheyreact...是真正的主语。thatreactmost是that引导的定语从句，修饰themetals。MetalHeatedinoxygenReactionwithwaterorsteam⑮PotassiumSodiumCalciumMagnesiumAluminiumZincBurnstoform⑫anoxide⑬*ReactingwithcoldwaterReactingwithsteamIronReactsslowlyPartialreactionCopperPartial⑭reactionNoreaction*anoxide＝anothersubstance＋oxygenPassageBASimpleScientificExperimentBelowisadescriptionofasimplescientificexperiment.Itshowsushowironreactswithairandwithwater.Belowisadescriptionofasimplescientificexperiment.是完全倒装句，主语为adescription，isbelow是系表结构。Itshowsushowironreacts...中it是主语，shows是谓语动词，us及how引导的宾语从句作了shows的双宾语。Aim⑯：Tofindoutifironrusts⑰(a)indryair；(b)inwaterthathasnoairinit(air­free⑱water)；(c)inordinary⑲water.Apparatus：3cleanironnails；testtubes；testtubeholder；cottonwool；oil；Bunsenburner.ifironrusts是if引导的宾语从句，if意为“是否”。thathasnoairinit是that引导的定语从句，修饰water。IronindryairMethod(1)Putsomeironnailsatthebottomofatesttube.(2)Pushsomecottonwooldown⑳thetube.(3)Leavethetubeforoneweek.ResultAfteroneweek，thenailshavenotrusted.ConclusionIrondoesnotrustindryair.Ironinair­freewaterMethod(1)Half­fillatesttubewithwater.(2)Boilthewaterforthreeminutes.(Thismakessurethereisnoairinthewater.)(3)Puttwoorthreecleannailsinthewater.(4)Addsomeoiltothewater.Thiswillkeepairoutofthewater.(5)Leavethetubeforoneweek.ResultThenailsdonotrustinthetubewithair­freewater.ConclusionIrondoesnotrustinair­freewater.makesure确保，其后的定语从句省略了引导词that。IroninordinarywaterMethod(1)Half­fillatesttubewithwaterandaddtwoorthreecleannails.(2)Leavethetubeforoneweek.ResultThenailsrustinthetubewithordinarywater.ConclusionIronrustsinordinarywater.阅读清障①thinkof想象；想起②usen．[C]用处，用途③beused是被动语态，意为“被用(来)……”。④electrical/I'lektrIkl/adj.与电有关的；用电的⑤equipment/I'kwIpmənt/n.设备；装备※equipment是不可数名词，表达“一件设备”用apieceofequipment。beequippedwith配备有……⑥react/ri'ækt/vi.(化学)反应※reactwith与……起反应reactto对……产生反应；回应⑦substance/'sʌbstəns/n.物质⑧oxygen/'ɒksIdʒən/n.氧气⑨reaction/ri'ækʃn/n.反应※reactionto对……的反应⑩putsth.inorder把某物按顺序排列⑪atthetop(of)在(……)顶端※atthebottom(of)在(……)底部⑫form/fɔːm/vi.&vt.形成※formn．形式；表格intheformof以……形式⑬oxide/'ɒksaId/n.氧化物⑭partial/'pɑːʃl/adj.部分的；局部的⑮steam/stiːm/n.蒸汽；水汽⑯aim/eIm/n.目标；目的※withtheaimof带着……的目的⑰rust/rʌst/vi.生锈⑱air­freeadj.没有空气的⑲ordinary/'ɔːdnəri/adj.普通的；平常的⑳downprep.沿着；顺着leavevt.使……处于(某种状态、某地等)※leave＋宾语＋形容词，使……处于某种状态conclusion/kən'kluːʒn/n.结论※inconclusion总之；最后cometo/reach/drawaconclusion得出结论half­fillvt.加一半，填一半boil/bɔIl/vt.煮；煮沸※boilingwater正在沸腾的水boiledwater烧开的水add...to...往……加入……※addto增添，增加addup把……加起来addupto总共是，合计为keep...outof防止……进入；使……在外面※keep...awayfrom使……远离……keepoff远离课文翻译A篇很难想象一个没有金属的世界。不同的金属有不同的用途，比如，钢用来造车，铁用来造电力设备。当我们使用金属时，了解它们和不同的物质(例如水和氧气)如何发生反应是很重要的。(不同的)金属与这些物质的反应程度可以按顺序排列起来。下列是一张金属反应表，反应最强的排在上面，反应最弱的排在下面。*氧化物＝另一种物质＋氧气金属在有氧状态下加热与水或水蒸气的反应钾燃烧后生成氧化物与冷水反应钠钙镁与水蒸气反应铝锌铁反应缓慢部分反应铜部分反应不反应B篇一个简单的科学实验下面是对一个简单科学实验的描述。这篇文章向我们表明，铁是怎样与空气和水反应的。目的：弄清铁是否在下列状态下生锈：(a)在干燥的空气中；(b)在没有空气的水中(不含空气的水)；(c)在普通的水中。仪器：三枚洁净的铁钉、试管、试管夹、棉花、油、本生灯(即煤气灯)。铁在干燥的空气中方法(1)把若干铁钉置于试管底部；(2)顺着试管塞入一些棉花；(3)把试管放置一周。结果一周后，铁钉未生锈。结论铁在干燥的空气中不生锈。铁在不含空气的水中方法(1)在试管中加一半水；(2)将水烧开保持3分钟(这样做可以保证水中无空气)；(3)在水中放2～3枚洁净的铁钉；(4)在水中加些油，这样做可防止空气进入水中；(5)把试管放置一周。结果铁钉在装有无空气的水的试管中未生锈。结论铁在没有空气的水中不生锈。铁在普通的水中方法(1)在试管中加一半水，并在水中放2～3枚洁净的铁钉；(2)把试管放置一周。结果铁钉在装有普通水的试管中生锈。结论铁在普通的水中会生锈。基础知识自测Ⅰ.单词预习1．____________vi.膨胀2．____________vi.收缩3．____________n．物质4．____________n．混合物5．____________n．阶段；时期6．____________n．目标；目的7．____________n．设备；装备8．____________vi.(化学)反应→____________n．反应9．____________n．结论→____________vt.下结论expandcontractsubstancemixturestageaimequipmentreactreactionconclusionconcludeⅡ.短语研习1．____________往……加入……2．____________与……起(化学)反应3．_______________最后；总之4．_______________把……按顺序排列5．_______________把……关在外面6．____________想；考虑7．____________弄清楚；查明add...to...reactwithinconclusionput...inorderkeep...outofthinkoffindoutⅢ.句型博习1．___________________theearth'ssurface____________water.地球表面的三分之二是水。2．____________________aworldwithoutmetals.很难想象一个没有金属的世界。Two－thirdsofisItishardtothinkof课文阅读理解Step1WarmingupDoyoulikedoingscientificexperiments？Whatarethestagesofascientificexperiment?____________________________________________________________________答案：Yes，Ido.Thestagesareasfollows:aim—method—result—conclusion.Step2FastreadingReadthepassagequicklyanddecidewhetherthefollowingstatementsaretrue(T)orfalse(F)．1．Differentmetalshavedifferentuses.()2．Thereactionofmetalswithdifferentsubstancesisthesame.()3．Magnesiumcanformanoxidewhenheatedinoxygen.()4．Ironreactswithcoldwater.()5．Copperreactmostwhenheatedinoxygen.()TFTTFStep3CarefulreadingReadth