英语论文英文文献中introduction的写法.ppt
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英语论文英文文献中introduction的写法.ppt
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IntroductionAgoodbeginningmakesagoodending.11.Whatisanintroduction?
2.Whatsthepurposeoftheintroduction?
3.HowshouldIstart?
4.Howtobuildamodelofintroduction?
5.Themodelofintroduction.6.Fourcomponentsofamodel.7.Grammarandwritingskills.8.Vocabulary21.WhatIsanIntroduction?
1.WhatIsanIntroduction?
uTheintroductionsectionshowsthequestionsthatshouldbeansweredforthereadersoncetheyfinishreadingthe“Introduction”.Readerswillaskthequestions:
WhattopicamIgoingtolearnabout?
Whyisthattopicimportant?
DoIknowthetopicalready?
WhatdoIknowalready?
32.WhatsthePurposeoftheIntroduction?
uTheintroductioncomesatthestartofapieceofwriting.Withoutthispart,thereadercannoteasilyunderstandthemoredetailedinformationabouttheresearchthatcomeslaterinthethesis.Itintroduces:
theresearchbysituatingit(bygivingbackground),presentingtheresearchproblem,andsayinghowandwhythisproblemwillbesolved,explainingwhytheresearchisbeingdone.(rationale)whichiscrucialforthereadertounderstandthesignificanceofthestudy.43.HowShouldIStart?
3.HowShouldIStart?
uYoumaywanttostartyourintroductionbydescribingtheproblemyouaretryingtosolve,ortheaimofyourwork,butasyouwillseewhenyouexaminepublishedwork,thisisnothowmostresearchpapersbeginandthereforeitisnotthebestwayforyoutobegin.5uInordertohelpyouwritetheintroductiontoyourownresearch,themodelyoubuildmustanswerthefollowingthreequestions:
Howdowritersnormallystarttheintroduction?
Whattypeofinformationshouldbeinmyintroduction,andinwhatorder?
Howdowritersnormallyendtheintroduction?
64.BuildaModelofIntroduction4.BuildaModelofIntroductionTask:
Readthefollowingintroductionanddecidewhattheauthortellsusineachsentence.Buildamodelofintroductionbywritingashortdescriptionofwhatthewriterisdoingineachsentence.7ExampleAnalysisExampleAnalysis?
8TheSynthesisofFlexiblePolymerBlendsfromTheSynthesisofFlexiblePolymerBlendsfromPolylactidePolylactideandRubbersandRubbersIntroduction
(1)Polylactide(PLA)hasreceivedmuchattentioninrecentyearsduetoitsbiodegradableproperties,whichofferimportanteconomicbenefits.
(2)PLAisapolymerobtainedfromcornandisproducedbythepolymerizationoflactide.Analysis:
Inthissentence,thewriter:
(1)establishestheimportanceofthisresearchtopic
(2)providesgeneralbackgroundinformationforthereader.9(3)Ithasmanypossibleusesinthebiomedicalfieldandhasalsobeeninvestigatedasapotentialengineeringmaterial.(4)However,ithasbeenfoundtobetooweakunderimpacttobeusedcommercially.(3)inamorespecific/detailedway,usingresearchreferencestosupportboththebackgroundfactsandtheclaimforsignificance(4)describesthegeneralproblemareaorthecurrentresearchfocusofthefield10(5)OnewaytotoughenpolymersistoincorporatealayerofrubberparticlesandtherehasbeenextensiveresearchregardingtherubbermodificationofPLA.(6)Forexample,Penneyetal.showedthatPLAcompositescouldbepreparedusingblendingtechniquesandmorerecently,Hillierestablishedthetoughnessofsuchcomposites.(5)providesatransitionbetweenthegeneralproblemareaandtheliteraturereview(6)providesabriefoverviewofkeyresearchprojectsinthisarea11(7)However,althoughtheeffectoftherubberparticlesonthemechanicalpropertiesofcopolymersystemswasdemonstratedovertwoyearsago,littleattentionhasbeenpaidtotheselectionofanappropriaterubbercomponent.(8)Thepresentpaperpresentsasetofcriteriaforselectingsuchacomponent.(7)describesagapintheresearch(8)describesthepaperitself12(9)Onthebasisofthesecriteria,itthendescribesthepreparationofasetofpolymerblendsusingPLAandahydrocarbonrubber(PI).(10)ThiscombinationoftwomechanisticallydistinctpolymerizationsformedanovelcopolymerinwhichtheincorporationofPIsignificantlyincreasedflexibility.(9)givesdetailsaboutthemethodology(10)announcesthefindings135.TheModelofIntroduction
(1)establishestheimportanceofthisresearchtopic
(2)providesgeneralbackgroundinformationforthereader.(3)inamorespecific/detailedway,usingresearchreferencestosupportboththebackgroundfactsandtheclaimforsignificance.(4)describesthegeneralproblemareaorthecurrentresearchfocusofthefield.确立研究主题的重要性确立研究主题的重要性为读者提供总体的背景信息为读者提供总体的背景信息与第与第1、2句的做法一样,但是更具体句的做法一样,但是更具体描述了所研究领域的一般性问题或当描述了所研究领域的一般性问题或当前的研究焦点前的研究焦点14Continue(5)providesatransitionbetweenthegeneralproblemareaandtheliteraturereview(6)providesabriefoverviewofkeyresearchprojectsinthisarea.(7)describesagapintheresearch(8)describesthepaperitself(9)givesdetailsaboutthemethodology(10)announcesthefindings提供了总体问题领域到文献综述之间提供了总体问题领域到文献综述之间的一个过渡的一个过渡概述了此研究领域重要的研究项目概述了此研究领域重要的研究项目描述了已有研究的空白描述了已有研究的空白描
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