科技英语演讲ppt课件.ppt

科技英语演讲ppt课件.ppt

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1、Unit6TextualDevelopmentProducer:AlloftheVehicleEngineeringAdviser:Ms.2011.03.02TopicalHighlights:Part1.Description:objectivedescription,subjectivedescription,generalrequirementsforresearchdescription.Part2.LogicalDevelopment:developingbychronologicals

2、equence,developingbyinvestigationprocedures,developingtheresearch"fromAbstracttoConcrete",developingtheresearch"fromConcretetoAbstract",developingbyusingotherlogicalsequencing.Part3.Reasoning(Persuasion)Part4.SpecialAttention:sentencestructure(2)--sho

3、rtformsentencesledby"as";present,pastandpresentperfecttenses,passivevoice,subjunctivemood,etc.ResearchpapersTheoreticalnature(Unit6)Experimentalnature(Unit7)Part1DescriptionTherearetwobasicapproachestodescription:objectiveandsubjective1)ObjectiveDescr

4、iptionAprofessionalauthorhastotakeanobjectiveapproachinsteadofasubjectiveone,becauseinhisprofessionalresearch,hehastofocusontheobjectheisportrayingratherthanonhispersonalreactionstoit.However,fullobjectivityisjustanideal.Theauthorhavetoselectdesirable

5、detailsandeliminateothers,thoughtheycanhardlybecompletelyobjective.Acaseinpointisthefollowingpassage.e.g.1Mercedes-BenzBlueZEROvehicles,fornear-seriesproduction(extract)ThethreeBlueZEROvariantsarebasedontheuniquesandwich-floorarchitecturewhichMercedes

6、-Benzintroducedsome10yearsago,initiallyfortheA-ClassandthentheB-Class.Oneoftheaimsofthisdesignwastobeabletointegratealternativedrivesystems.Advantagesofthemodifiedconstructionincludethepositiveeffectofthemajorpowertraintechnologycomponentsonthecentero

7、fgravity,theirspace-savingdesign,andthehighdegreeofprotectionwithinthevehicleunderbody.Fromtheaboveexcerpt,itcanbeseenthattheauthorintroducesMercedes-BenzBlueZEROvehicleuniquestructure,andthereasonsforusingthisstructureaswellastheadvantagesofit.Suchak

8、indofobjectivedescriptionistypicalforprofessionalresearchpapers.2)SubjectiveDescriptionThesubjectiveorimpressionisticdescriptionshowstheauthor'simpressionsoforresponsestowhattheysee.Insuchdescriptions,theauthordoesnotonlywanttodescribetheobjec

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