Module5AlessoninalabWhenyouheatametal,itexpands.•expandv.增加,扩展,使...膨胀Metalsexpandwhentheyareheated.Ourforeigntradehasexpandedduringrecentyears.Whenyouheatametal,itcontracts.contractv.(使)收缩;和……订合同n.契约,合同Ifyouicethemetal,itwillcontract.Wecontractedwithashoefactoryfor4,000pairsofshoes.Hemadeatwo-yearcontractofemploymentwiththefirm.归纳拓展makeacontractwith与……签合同signacontract签署合同carryoutacontract履行合同cancelacontract取消合同breakacontract违反合同by/oncontract按照合同;依约活学活用Youshouldreadthe______carefullybeforeyousignit.A.contrastB.contactC.contractD.conflict解析:考查名词词形和词义的辨析。contract合同;contrast对照,对比;contact联系,接触;conflict冲突。CItishardtothinkofaworldwithoutmetals.很难想像一个没有金属的世界。句式分析:本句中it为形式主语,真正的主语是不定式短语tothinkof...,构成Itis/was+adj.+todosth.的结构。It’sdifficulttofinishthetaskinsuchashortperiodoftime.在这么短的时间内完成任务很困难。归纳拓展(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。)It’simportantforustomasteraforeignlanguage.对我们来说掌握一门外语非常重要。(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。)It’scarelessofyoutomakesomanymistakesinthisexam.在这次考试中你出了这么多错真是太粗心了。活学活用Weallthink______isnotnecessaryforyoutohavetoldheraboutthebadnews.A.thereB.itC.thatD.this解析:考查句式Itis+adj.+forsb.todosth.的结构。B…andironisusedinelectricalequipment.•electricaladj.电的,与电有关的Thereisafaultintheelectricalsystem.Nowelectricalapplianceshaveenteredintoordinaryfamilies.•electric表示“电力的,以电为动力的”,而electrical表示“与电有关的,电气科学的”。Theboyisplayinganelectrictrain.Noweveryroomhasanelectriclight.Ourclassroomarenowequippedwithelectricfans.Mybrotherstudieselectricalengineering.•equipmentn.设备,装备,器材ItriedtofixtheequipmentbutIfailed.Weshouldmakeabetteruseoftheexistingequipment.Whichofthemetalsinthetablereactsthemostwithoxygenandwater?•reactvi.起反应,起作用Howdidtheyreacttoyoursuggestion?Shereactedtotheinsultbyturningherbackonhim.归纳拓展react的含义及用法:(1)作出反应,回应(与to连用);(2)反对,反抗,反动(与against连用);(3)(指物质)起化学反应(与with连用);(4)对某事物有影响,对某事物产生变化(与介词on连用)。活学活用Thefootballplayerreacted______thejudge’sdecisionbywithdrawingfromthematch.A.onB.toC.againstD.by解析表示“人对……作出反应”用to。BHereisatablewiththemetalsthatreactmostatthetop,andthemetalsthatreactleastatthebottom.这儿有一个图表,那些反应最强烈的金属在上部,反应最不强烈的在下部。句式分析这是一个倒装句,正常语序是:Atablewith...ishere.在学习的过程中我们要注意:(1)在there,here引导的句子中,谓语动词是be,exist等表示状态的不及物动词时,句子要全部倒装。(2)在there,here,now,then,thus等开头的句子里,谓语动词是come,go,follow等且主语是名词时,句子要全部倒装。(3)在here,there引导的句子中,当主语是代词时,不倒装,且此类句子不用进行时。Herecomesthebus.Let’shurry!Herehecomes!Therestandsatallpinetreeatthetopofthehill.Here’stheknife;itwasunderthesedishes.刀子在这儿呢,就在这堆盘子地下。•ordinaryadj.普通的,正常的,一般的Atthattimeth...