单元：Unit3Tomorrow’sworld板块：Wordpower课堂设计指导思想：本节课是以读、写为主的词汇教学课。内容包括用名词或动词加上后缀构成抽象名词，以及与电脑相关的词汇等。学习一定的构词法知识，可以有效地拓展学生的词汇量。通过构词法教授词汇，不仅可以使学生利用较少的时间掌握较多的词汇，而且还可以使学生通过对词缀的了解来猜测词义，从而扩大词汇量。本课主要通过引导学生自行归纳抽象名词的构成规律的方法进行教学，不仅有助于增加学生的词汇量，而且可以使学生初步形成自己的词汇认知策略，学会根据词根及后缀来猜测词义。Teachingaims:1.Learnhowtoformabstractnounsfromverbsandadjectivesbyaddingsuffixes.2.Learnsomewordsrelatedtocomputers.3.Expandrelatedvocabularyandapplythempractically.Teachingprocedures:Step1Revision（PPTpage4，显示表格，实例可写在黑板上）HelpstudentsrevisethecommonsuffixusedtoformadjectiveslearntinUnit1usingthefollowingchartandaskstudentstogivemoreexamples.SuffixMeaningExamples(adjectives)-icalhavingthequalityofmedical,electrical,grammatical,practical-ablehavingtheabilityofbelievable,acceptable,reasonable,enjoyable-ouslike,fullofadventurous,dangerous,prosperous,conscious-fulcharacterizedbyjoyful,helpful,useful,mouthful,handful-lesswithoutuseless,careless,helpless,hopeless,cloudless【设计说明】复习以前所学的构词法知识，激活学生对后缀的相关记忆，以旧带新，有助于提高学习效率。Step2Lead-in1.Askstudentstocomparethefollowingtwogroupsofwords.（PPTpage5，鼠标点击，逐条显示）Group1:house,milk,driver,dog,paperGroup2:revision,preparation,decision,difference,arrangementAskstudentstoconsiderthefollowingquestions:(1)Whichpartofspeechiseachofthefollowingwords?(2)Whatarethesimilaritiesandthedifferencesbetweenthetwogroups?Answers(1)Theyareallnouns.(2)ThewordsinGroup1refertophysicalthingsandthoseinGroup2refertoideas,actionsandqualities.2.TellstudentsthatthenounsinGroup2arecalledabstractnouns.Askstudentstoreadthedefinitionofabstractnounsonpage46.（PPTpage6，鼠标点击，逐条显示，点击稍慢）3.Askstudentstothinkofmoreabstractnouns.Andshowthemthefollowingwordsasexamples:（PPTpage7,显示单词）revision,direction,decision,preparation,satisfaction,argument,judgement,disappointment,excitement,civilization,dependence,difference,assistance,pleasure,loyalty,cruelty,action,failure,carelessness,happiness【设计说明】通过分析、对比，引导学生自己发现抽象名词的特点，即不可为人的五官感知。随后在明确抽象名词的定义后，用实例加深学生的印象。Step3Waystoformabstractnounsfromverbsandadjectives1.Askstudentstocategorizethewordsontheblackboardaccordingtothesuffixes.Thenaskstudentstoseewhatwordstheyareandwhichpartofspeechtheyareifthesuffixesareremovedusingthefollowingform.（PPTpage8，鼠标点击，逐条显示，只举两组为例）NounsOriginalwordsPartofspeechSuffixrevisionreviseverb-siondecisiondecideverb-sionpreparationprepareverb-tionsatisfactionsatisfyverb-tionargumentargueverb-mentjudgementjudgeverb-mentdependencedependverb-enceassistanceassistverb-encedifferencedifferverb-encepleasurepleaseverb-urefailurefailverb-urecarelessnesscarelessadjective-nesshappinesshappyadjective-nesscivilizationciviladjective-tionloyaltyloyaladjective-tycruelty,crueladjective-ty2.Askstudentstoreadtheinstructionsonpage46.Askthemtocomparethewordsonthescreenwiththewordsinthetables.3.Tellstudentsthatmostabstractnounsareuncountable,onlyafewofthemarecountable.Askthemtoreadthefollowingexamples:（PPTpage9，鼠标点击，逐条显示）hope→ahope;idea→anidea;situation→asituation...
