英语论文sci写作的万能句型

《英语论文sci写作的万能句型》由会员上传分享，免费在线阅读，更多相关内容在工程资料-天天文库。

1、文献简介1.RecentlyinvestigatorshaveexaminedtheeffectsofXonY.2.Inthepasttwodecadesanumberofresearchershavesoughttodetermine......3.Previousstudieshavereported......4.AconsiderableamountofliteraturehasbeenpublishedonX.Thesestudies......5.Smith(1984:217)showshow,inthepast,researchintoXwasmainlyconcer

2、nedwith.......6.SurveyssuchasthatconductedbySmith(1988)showedthat......7.ThefirstseriousdiscussionsandanalysesofXemergedduringthe1970swith......8.Recentevidencesuggeststhat.......9.Severalattempshavebeenmadeto......10.Anumberofresearchershavereported......11.XswerereportedinthefirstmodelsofY(e

3、.g.,Smith,1977;Smith,&Patel,1977).12.WhatweknowaboutXislargelybaseduponempiricalstudiesthatinvestigatehow......StudiesofXshowtheimportanceof.....强调研究领域存在的问题1.However,theserapidchangesarehavingaseriouseffect......2.However,amajorproblemwiththiskindofapplicationis......3.LackofXhasexistedasaheal

4、thproblemformanyyears.Despiteitssafetyandefficacy,Xsuffersfromseveralmajordrawbacks:4.However,researchhasconsistentlyshownthatfirstyearstudentshavenotattainedanadequateunderstandingof......5.ThereisincreasingconcernthatsomeXsarebeingdisadvantaged......6.Despiteitslongclinicalsuccess,Xhasanumbe

5、rofproblemsinuse.7.Questionshavebeenraisedaboutthesafetyofprolongeduseof......强调研究领域存在的争议1.Todatetherehasbeenlittleagreementonwhat......2.Morerecently,literaturehasemergedthatofferscontradictoryfindingsabout.....3.Oneobserverhasalreadydrawnattentiontotheparadoxin......4.InmanyXsadebateistaking

6、placebetweenYsandZsconcerning......5.ThecontroversyaboutscientificevidenceforXhasragedunabatedforoveracentury.6.Debatecontinuesaboutthebeststrategiesforthemanagementof......7.Thisconcepthasrecentlybeenchallengedby.......studiesdemonstrating.......强调研究领域的知识差距1.Sofar,however,therehasbeenlittledi

7、scussionabout......2.LittleisknownaboutXanditisnotclearwhatfactors.......3.However,fartoolittleattentionhasbeenpaidto......4.Inaddition,noresearchhasbeenfoundthatsurveyed.......5.Sofarthismethodhasonlybeenappliedto......6.Thisindicatesa