Unit2WitnessingtimeGrammarandusageThoughtsonthedesign:本节课主要目的是复习名词性从句的概念，种类，引导词及名词性从句的基本用法。学生首先回顾了什么是名词性从句，名词性从句包含哪些从句。对于每一类名词性从句，学生通过朗读大量的例句首先对此类从句有一个感性的认识，并从这些例句中找出规律及其特征。本节课设计的主要特色就是让学生学会在使用中找出规律，培养学生自主学习能力，提高学生的合作学习精神。Teachingaims:Afterlearningthislesson,thestudentswillbeabletounderstandwhatnounclausesare.Thislessonisaimedtoguidethestudentstohaveageneralunderstandingofnounclausesbypresentingnumerousexamples,thusenablingthestudentstousethemcorrectlyandfreelyintheirdailylife.Teachingprocedures:Step1GeneralideaofnounclausesAskthestudents:Whatarenounclauses?Collectsomeexamplesfromsomeindividualstudents.Ortheteachercangivesomeexamples.Fromtheseexampleswecansee“Nounclausesactlikenounsandcanfunctionasthesubject,object,predicativeorappositiveinthesentence.”[Explanation]名词性从句在日常生活中随处可见，教师可以引导学生从已知的知识导入课题，让学生在轻松的交流中了解名词性从句的基本含义。Step2Presentationandpractice1.Subjectclauses1)Presentthestudentsseveralsubjectclauses.(1)Thathewillsucceediscertain.(2)Whetherhewillgothereisnotknown.(3)Whathesaidisnottrue.(4)Wherehehidthemoneyistobefoundout.(5)Whoevercomesiswelcome.(6)Howwecanhelpthetwinswillbediscussedatthemeeting.(7)Whenthey’llstarttheprojecthasnotbeendecidedyet.Tellthestudents:Subjectclausescanbeintroducedbythat,whetherorquestionswords.2)Whatorthat?Givestudentstwopairsofsentencesintroducedwithwhatandthatandaskthestudentstoconcludetheirdifferences:whenintroducingthesubjectclause;thatcarriesnomeaning.Whatisusuallyusedasthesubjectorobjectintheclause.3)Theuseof“it”.Presentstudentsthefollowingsentences:(1)Itiscertainthathewillsucceed.(2)Itisnotknownwhetherhewillgothere.(3)Ithasnotbeendecidedyetwhenthey’llstarttheprojectTip:Weoftenuseitasapreparatorysubjectandthesubjectclauseisputattheendofthesentence.Inthiscase,thesentenceisbetterbalanced.[Explanation]主语从句是名词性从句中比较常用的从句，教师先呈现7个主语从句，让学生对它有个感性的认识。之后引导学生了解主语从句的两个难点：1）what与that的区别；2）it引导的名词性从句，让学生理解为什么要用it作形式主语，并复习一些常用的it句型。2.Objectclauses1)Presentsomesentencesandgetthestudentstorecognizetheobjectclausesinthem.(1)Iheard(that)hejoinedthearmy.(2)Shedidnotknowwhathadhappened.(3)Iwonderwhetheryoucanchangethisnoteforme.(4)Shetoldmethatshewouldacceptmyinvitation.(5)Oursuccessdependsuponhowwellwecancooperatewithoneanother.(6)Iamafraid(that)I’vemadeamistake.2)Getthestudentstoconcludethreetipswhileusingtheobjectclausesbygivingtheexamplefirst.Tip1:Ifthereismorethanoneobjectclause,onlythefirstthatcanbeomitted.Tip2:Preparatoryitisusedwhenthereisanobjectcomplement.Tip3:thatisusuallynotusedtointroduceanobjectclauseafteraprepositionexceptinthatorexceptthat.[Explanation]宾语从句的呈现方式与主语从句相似，先通过例子让学生了解什么是宾语从句，然后让学生自己归纳宾语从句使用中的特殊用法。3.Predicativeclauses1)Givestudentsfoursentencesandgetstudentstothink:(1)whatarepredicativeclauses?(2)Whatverbscanbefollowedbypredicativeclauses?(3)Whatwordscanbeusedtointroducepredicativeclauses.a.Thequestioniswhetherwecanmakegoodpreparationinsuchashorttime.b.Thisiswhywecan’tgetthesupportofthepeople.c.Butthefactremainsthatwearebehindtheotherclass...
