SCI论文写作句型13Introd
撰文:邹世辉所属专栏:研之成理写作实验室
前言:
在Introduction中,我们通常需要对已发表文献的结果进行总结并提炼出其中值得研究的科学问题。而非常常见的一种情况是人们对于某一科学问题还没有定论,不同的人有不同的观点,那么在写作时,有哪些常见的句型可以应用这种情景呢?
一般而言,这种情况下采用总分式进行写作,先提出论点(总:指出存在分歧),然后分别陈述论据(介绍分歧的具体内容)。
示例:
(总)Themechanismwithwhichtungstenoxidecanactivatethevanadiumoxy-centersfortheSCRisstillmatterofdebate.
(分)SomeauthorspointedoutthattungstenoxidegivesrisetostrongerBr?nstedacidsites,whosepresencefavorsthereaction.OtherauthorsproposedthattheSCRreactionneedstwosites,andWO3canofferthepresenceofasecondsite.Alternatively,ithasbeensuggestedthattheV2O5–WO3/TiO2solidpresentsquitepeculiarelectronicfeatures,involvingthesemiconductingnatureoftitaniaandthesimilarityofthedlevelsoftungsten,vanadiumandtitanium.
参考文献:Appl.Catal.B:Environ.,18,1-36
常用的句式有:
A.Themechanismwithwhichtungstenoxidecanactivatethevanadiumoxy-centersfortheSCRisstillmatterofdebate.(Appl.Catal.B:Environ.,18,1-36)
类似:Low-temperatureCOoxidationbysupportedAunanoparticles,firstreportedbyHarutaetal.,isinterestingfromafundamentalpointofview,astheexactoriginofthecatalyticactivityismuchdebated.(J.Phys.Chem.C,,(17),–)
Asheterogeneouscatalyststheyhavenotprovedamenabletointimatestudy,andeventothisdaythereremainsanon-goingdebateabouttheoxidationstateoftheactivechromiumcentres.(Chem.Commun.,,-)
B.ChargetransportinmesoporoussystemsisunderkeendebatetodayandseveralinterpretationsbasedontheMontrol–Schermodelforrandomdisplacementofchargecarriersindisorderedsolidshavebeenadvanced.(J.Photochem.Photobio.A:Chem.,,3-14)
变形:Debatehaslongprevailedastowhether...
类似:ThecontroversyaboutscientificevidenceforXhasragedunabatedforoveracentury.
C.Althoughconsiderableprogresshasbeenmade,particularlyinthelastfiveyears,thishasbeenac中科医院曝光南京白癜风
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