牛津高中英语模块5 unit3 word power课件.ppt

《牛津高中英语模块5 unit3 word power课件.ppt》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、WordpowerUnit3PrefixesandsuffixesOrgansofthebodyHowtoenlargeyourvocabulary?Useprefixesandsuffixesindependenceindependenceprefix(前缀)root(词根)suffix(后缀)Prefix:agroupoflettersthatisaddedtothebeginningofawordtochangeitsmeaning.Suffix:aletteroragroupoflettersaddedtotheendofaword

2、tomakeadifferentword.prefixWorkinpairsandtrytoguesswhatawordmeansbylookingatitsprefix.PrefixExampleMeaninganti-anti-smokingdis-disappearin-il-im-ir-incorrectillegalimpoliteirresponsibleagainst,opposedtonot,oppositeofnot,withoutnegativeprefixes否定前缀PrefixExampleMeaningpre-pr

3、eviewre-recreaterepeatun-uncertainunhappyearly,beforeagainnot,oppositeofsuffixTrytoguesswhatawordmeansbylookingatitssuffix.SuffixExamplesMeaning-ablecomfortable-fulcheerful-istscientistworthyof,abletobefullof,characterizedbysomeonewhodoessomethingSuffixExamplesMeaning-less

4、hopeless-mentagreement-nesshappinesswithoutindicateastateorconditionindicateaquality,stateorcharacterprefixestrans-transporttranslateacrossover-overworktoomuchen-enlargebecomesuffixes-alculturaloriginalconcerningorabout-mentagreementtreatmentIndicateastateorcondition-enwid

5、enshortenmakeorbecomecomplementaryTipsSomewordstakeahyphen(-)whenaprefixisadded.(anti-smoking)2.Usuallyaprefixwillchangethemeaningofaword,whileasuffixwillchangethepartofspeech(词性)ofaword.(agree---disagreeagree---agreement)3.Wesometimesneedtochangetheendingofawordbeforeweca

6、naddasuffix.(happy---happiness)ableagreeappearnovelrespectReadthefollowingwordsandanswerthequestionswiththeirappropriateform.1.Youcan’tfindyourpen.Whathappenedtoyourpen?(Itdisappeared.)exercise2.Youwanttogetthebookonthetopshelf,butyouarenottallenough.Doyouthinkyouwillbeab

7、letoreachthebook?3.Thetwogroupsdon’tagreewitheachother.Theyarguedfiercely.Sowhatistheproblembetweenthemcalled?(Iamunabletodoso.)(Disagreement.)4.ManypeoplerespectMr.Liandthinkheisagoodman.Hehelpspeopleoutandisagoodcitizenandfriend.SocanyoufindawordtodescribeMr.Li?5.Mr.Wang

8、haspublishedseveralbooks.Heloveshisjobwritingnovels.SowhatisMr.Wang’soccupation?(respecta