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1、(Wordformation)AimsTohelpstudentslearnaboutwordformation.Tohelpstudentsdiscoverandlearntousesomeusefulwordsandexpressions.Tohelpstudentsdiscoverandlearntousesomeusefulstructures.ProceduresI.WarmingupWarmingupbydiscoveringusefulwordsandexpressionsTurntopage35anddoexercisesNo.1,2,3and4first.
2、Checkyouranswersagainstyourclassmates’.II.LearningaboutWordformationSomewordscanbeguessedbylookingforsmallerwordswithinthem.Thesearecalledcompoundwords.Examplesofcompoundnounsarethemepark,fantasylandandEnglish-speaking.Findoutthreetypesofcompoundnounsinthereadingpassage.Thebasicpartofanywo
3、rdistheroot;toit,youcanaddaprefixatthebeginningand/orasuffixattheendtochangethemeaning.Forexample,intheword"unflattering,"therootissimply"flatter,"whiletheprefix"un-"makesthewordnegative,andthesuffix"-ing"changesitfromaverbintoanadjective(specifically,aparticiple).Englishitselfdoesnotusepr
4、efixesasheavilyasitoncedid,butmanyEnglishwordscomefromLatin,whichusesprefixesandsuffixes(youcanusethewordaffixtorefereithertoaprefixorasuffix)quiteextensively.Forexample,thewords"prefix,""suffix,"and"affix"themselvesareallformedfrom"fix"bytheusedofprefixes:·"ad"(to)+"fix"(attached)="affix"
5、·"pre"(before)+"fix"="prefix"·"sub"(under)+"fix"="suffix"Notethatboththe"-d"of"ad"andthe"-b"of"sub"changethelastletter.HerearesomeofthemostcommonLatinprefixes(forthemeaningsoftheLatinroots,lookupthewordsinagooddictionary):ab(away)abrupt,absent,absolvead(to)adverb,advertisment,afflictin(not
6、)incapable,indecisive,intolerableinter(between,among)intercept,interdependent,interprovincialintra(within)intramural,intrapersonal,intraprovincialpre(before)prefabricate,prefacepreferpost(after)postpone,postscript,postwarsub(under)submarine,subscription,suspecttrans(across)transfer,transit
7、,translateIII.ReadyusedmaterialsforWordformation了解了英语构词法是迅速扩大词汇量的有效途径之一。英语中有转化法、合成法、缀合法、派生法等构词方式，这里我们将向您陆续讲解比较常用的几种，希望对您的英语学习有所帮助。首先，来介绍一下构词法中的几个基本概念：词根（base,boot）：指同根词共有的可以辨认的部分。例如：philanthropist(慈善家)、anthropoid（类人的）、misanthropist（厌世者）、anthropology（人类学）这几个词中的
