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1、聲明本人鄭重聲明：所呈交的學(xué)位論文，是本人在指導(dǎo)教師的指導(dǎo)下，獨(dú)立進(jìn)行研究所取得的成果。除文中已經(jīng)注明引用的內(nèi)容外，本論文不包含其他個(gè)人或集體已經(jīng)發(fā)表或撰寫過的研究成果。對本文的研究做出重要貢獻(xiàn)的個(gè)人和集體，均已在文中以明確方式標(biāo)明。本聲明的法律責(zé)任由本人承擔(dān)。論文作者簽名：冶多日期：竺!!：!：!關(guān)于學(xué)位論文使用權(quán)的說明本人完全了解太原理工大學(xué)有關(guān)保管、使用學(xué)位論文的規(guī)定，其中包括：①學(xué)校有權(quán)保管、并向有關(guān)部門送交學(xué)位論文的原件與復(fù)印件；②學(xué)校可以采用影印、縮印或其它復(fù)制手段復(fù)制并保存學(xué)位論文；③學(xué)?？稍试S學(xué)
2、位論文被查閱或借閱；④學(xué)校可以學(xué)術(shù)交流為目的，復(fù)制贈(zèng)送和交換學(xué)位論文；⑤學(xué)?？梢怨紝W(xué)位論文的全部或部分內(nèi)容(保密學(xué)位論文在解密后遵守此規(guī)定)。簽名：——煽日期：％D。6．占導(dǎo)師簽名：日期：叫≥?！?、lb太原理工大學(xué)碩士學(xué)位論文ALoNGITUDINALSTUDYoFoRAI。ENGLISHLEⅪCALCHUNKSBYGRADUATESOFSCIENCEANDENGINEERINGABSTRACTSincetheterm‘‘chunking'’hasbeenbroughtintothelinguisticres
3、earchfieldin1970s’，lexicalchunkhasachievedmuchattentionoflinguists．Therealreadyexistagreatnumberoftheoreticalandempiricalfindingsinthisfield．Nevertheless，itisnotuntiltheendof20thcenturythatChineseresearchersbegantocontemplatetheuseoflexicalchunks．Anoverwhelm
4、ingconsensusamonglinguistsisthattheuseoflexicalchunkscouldimprovetheoralproficiency,despitethattherehasbeennogeneralagreementonthedefinitionandclassificationoflexicalchunkSOfar．Andthelexicalchunkapplyingteachingapproachhasbeenwidelyacceptedbyteachers．Althoug
5、htherehasbeenanincreasinginterestinstudyoflexicalchunk，researchersprefertochoosecollegestudentsorEnglishmajorgraduatesasresearchsubjects。It’Sapitythataweaknesshasexistedinstudyofuseoflexicalchunksbygraduatesofscienceandengineeringinalongitudinalview．Scienceg
6、raduates，withauniquewaysofthinkingandstudyhabits，belongtoahugecommunitywhichshouldbeattachedimportance．BasedonthedefinitionproposedbyMa(2011)andtheclassificationaccordingtonumbersofcompositionwords，thestudyattemptstoinvestigatetheuseoflexicalchunksinoralprod
7、uctionbysciencegraduates．Thepresentstudyrandomlyselects32graduatesmajoringincivilengineering，waterconservancyandHVAC(heatingventilationairconditioning)ina21keyuniversity．Thepurposeofthisstudyistoexploretheoverallcharacteristicsanddevelopmentalfeaturesoflexic
8、alchunksusein㈣6川6川同圳5Ⅲ9洲3?2刪Y太原理工大學(xué)碩士學(xué)位論文their4-peoplediscussionlinkduringthe2010-2011academicyear．Thestudytriestoanswerthefollowingquestions：(1)Fromthecross—sectionalView，whatarethegeneralchara
