《构成动词的后缀》PPT课件

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1、扩大词汇有招数（22）构成动词的后缀-(e)n使成为，引起，使有(1)某些形容词后-(e)nweak→weaken(使)虚弱，减弱short→shorten缩短sharp→sharpen(使)变锋利,明朗(2)某些名词后-(e)nfright→frighten（使）惊吓length→lengthen加长strength→strengthen加强2.–(i)fy使……化，使成beauty→beautify美化pure→purify提纯simple→simplify使简quality→qualify取得资格（或学历）class→

2、classify.分类3.–ize/-ise做成，变成，……化real→realize意识到organ→organize组织apology→apologize道歉modern→modernize使现代化normal→normalize使正常化4.–ate动词词尾，名词形式常为“-ation”decorate装饰communicate交流accumulate积累compensate补偿一、用括号内所给单词的正确形式填空。1.Nothingcould_______(weak)hisresolutiontocontinue.2.H

3、ername’sKatherine,generally__________(short)toKay.即时练习weakenshortened3.Theapplicationforms__________________(simple).4.He_________(quality)asadoctorlastyear.5.All________(donation)bloodistestedforHIVandotherinfections.havebeensimplifiedqualifieddonated6.We________(

4、apology)forthelatedepartureofthisflight.7.Thearticlecan_________(long)outalittlebyaddingsomeexamples.apologizelengthen8.________________(graduation)fromBeijingUniversity,myfatherhasbeenworkingthere.9.Hisillness_________(worse)duringthenight.10.Thisknifeneeds_______

5、__(sharp).sharpeningHavinggraduatingworsened二、改错：每小题有一个构词法错误，请找出并更正。1.Wemuststrengthgovernmentofthepeople，bythepeopleandforthepeople.2.Hefastuphiscoatandhurriedout.strength—strengthenfast—fastened3.Thecompanyisinvestingplentyofmoneytomodernitsfactories.4.Thefathert

6、erriblyhischildrenwithghoststorieslastnight.5.Relationsbetweenourtwocountriesnormal.normal—havebeennormalizedmodern—modernizeterribly—terrified三、按要求完成表格。n.oradj.词义v.词义civil国民的bright明亮的dark黑暗的electric用电的soft温和的mechanic机械师civilize使文明brighten使变亮darken使变暗electrify使电气化s

7、often变柔和,变软mechanize使机械化