阅读中如何猜词课件.ppt

,WelcomeToClassTwenty!,HowToGuessUnfamiliarWordsProperlyInOurReadingComprehension,阅读理解中如何巧猜生词,Yet,shopkeepersmayhavetospendextrahourstodealwithproblems,suchasshoplifters,whoalwaystakeawaythingsfromtheshopwithoutpayingforthem.,1.WordFormation构词法,派生法（Derivation）,合成法(Compounding),转化法（Conversion）,缩略法（Abbreviation）,一、派生法（Derivation）,由词根(root)加前缀（prefix）或后缀（suffix）构成新词。,un-dis-in-im-mis-non-,understandpolitesmokeragreefairvisible,Stayinguplateintothenighttoenlargehisvocabularybyrecitinglastnight,Tomoversleptthismorning.,2.over-:(1)toomuch(太，过于),overwork,overeat,overdo,(2)abovesth;across,overcoat,overhead,Someimportantprefixes（前缀）:,Thetrainsare_onFridayevenings.(crowded)Theboyis_forhisage.(develop),overcrowded,overdeveloped,1.en-:使,enable/endanger/enrich/encourage,Someimportantsuffixes后缀(root+suffix):,motivateadjusthopehomeaccomplishdecidelengthweak,-ment-sion-tion-ness-ful,-able-less-en,motivationadjustablehopefulhomelessaccomplishmentdecisionlengthenweakness,-ment,-tion,-sion,-ness,-ful,-able,-less,-en等,sharpenapencil,strengthen,brighten,broaden,widen,deepen,Withtheirshiningbrowneyes,waggingtails,andunconditionallove,traineddogscanprovidethenonjudgmentalblindmenwithhelpfulguidance.(2008NMET),unconditional:nonjudgmental:,无条件的，绝对的,没有判断力的,二、合成法（Compounding）,drawbackunderwearwaiting-roomheart-to-heart,把两个或两个以上独立的词合成一个新词。,InthisWorldFootballCupfortheballplayersfrombothSpainandHolland,playingwellinthefinalfootballgameandwinningarethelife-and-deathaffairs.(fromChinaDailyNewsReport),生死攸关的,Down-to-earthspiritisanecessity.Sharpwordsfromateachercansometimescauseaday-dreamingstudentdown-to-earth.,honestandpractical,实事求是，脚踏实地,三、转化法（Conversion）,由一种词性转化为另一种词性的词。,n.,v.take/bear,Nevertroubletroubleuntiltroubletroublesyou.,V.,n.,n.,V.,四、缩略法（Abbreviation）,DV3GSOSWWWVIP,DigitalVideo,ThreeGenerations,SaveOurShip,WorldWideWeb,VeryImportantPerson,2.Guessbyfindingcluesinthetext.,1.Astheshiproseandplungedinthewaves,itwasextremelydifficulttobeexactwithanyreading.A.sailedsteadilyB.movedquicklyC.fellsuddenlyD.stoppedslowly,2.Wecanfeelacceleration,asuddenincreaseinspeed,asaplanetakesoff.,通过表解释的同位语“anincreaseinspeed”可推断acceleration意为“加速度”,C,3.Australiahasmorekindsofvenomoussnakethananyothercountryintheworld.However,thepoisonofmostsnakescankillonlysmallcreaturesandonlyafewhavevenomthatispowerfulenoughtokillahumanbeing.AdangerousB.fierceC.poisonousD.wild,4.Thereisnoreasonforyoutodefameandinsultthemansimplybecauseyoudisagreewithhim.A.complainB.blameC.hitD.hurtinbadwords,D,C,Whendealingwiththeunknownwordsinreadingcomprehension,wecanuseWordFormationandCluesinthepassagetohelpus,butunderstandingthecontext(上下文，语境)isalsoveryimportant.,sumup,猜词技巧：一、根据构词法（转化、派生、合成等）猜测词义；二、根据上、下文语境（clues）猜测词义。（如：