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1、Unit6Problemsandsolutions(The2ndperiod)教学目标:(1)知识目标:1.独立主格结构的含义。2.学会将独立主格结构和时间、原因、伴随等状语从句的转换。3.理解独立主格结构的构成,并区别于分词作状语。(2)情感目标:1.培养并发扬乐观向上的精神。2.学会解决问题。(3)学习策略:小组互助。根据语言使用环境,得体地使用语言。(4)教学重点和难点:1.独立主格结构的形式。2.在具体的语境中得体地使用独立主格结构。教学过程:I.Warmingup1.Havearevi
2、sionoftheimportantphrasesinthe1stperiod.1)经商2)梦想成真3)特定的4)被用来做5)有可能6)数百万7)应用在8)做虚假承诺9)鼓励某人做10)参加11)提供某物给某人2.Leadinthegrammar.Findoutthesentencesinthepassagewelearned.1)Itsproductsprovenunsafe,acompanyislikelytobesuedformillionsofdollars.2)Hercompanypr
3、ospering,Anitarevolutionizedtheindustry.Studythestructureofthesentences.II.Studyingtherule1.Whatistheabsoluteconstruction?Theabsoluteconstructionisakindofadverbialphrasethatmodifiesthemainclause.Itbeginswitheitheranounphraseorapronounandisusuallymodi
4、fiedbyaparticiple.AformalstyleusedmostlyinwrittenEnglishtomakethetextmoreinteresting.Theabsoluteconstructioncanexpresstime,condition,reasonorattendingcircumstances.2.独立主格结构的功能独立主格结构主要用于描绘性文字中,其作用相当于一个状语从句,常用来表示时间、原因、条件、行为方式或伴随情况等。1)Absoluteconstructi
5、onasanadverbialoftimeTherubbishsorted,itistransportedtoarecyclingcompanyforprocessing.(=Aftertherubbishissorted)时间状语:独立主格结构作时间状语时相当于一个由when,assoonas,after等引导的时间状语从句。①____,thetrainstarted.A.ThesignalgivenB.AfterthesignalwasgivenC.GiventhesignalD.allth
6、eabove②_____,thetextbecameeasierforustolearn.A.NewwordsexplainedB.WhennewwordswereexplainedC.WhenteacherexplainednewwordsD.alltheabove2)AbsoluteconstructionasanadverbialofconditionItsproductsprovenunsafe,acompanyislikelytobesuedformillionsofdollars.(
7、=Ifitsproductsareprovenunsafe,...)条件状语:独立主格结构作条件状语时可以改为由if引导的条件状语从句。①________,we'llgotovisittheGreatWall.A.WeatherpermittingB.IfweatherpermitsC.IfpermittingD.AandB②_____,thepatientwillrecoverhimselfsoon.A.IfthetreatmentisintimeB.ThetreatmentintimeC.T
8、hetreatmentbeingintimeD.A,BandC3)AbsoluteconstructionasonadverbialofreasonHercompanyprospering,sherevolutionizedtheindustry.(=Becausehercompanywasprospering,...)该结构在句中作原因状语时相当于一个as引导的一个原因状语从句。如:1).________nobus,wehadtowalkhome.A.TherebeingB.Astherewa