托福-听力加试-鸟类迁徙bird-migration.doc

托福机经听力加试鸟类迁徙birdmigration原文及试题答案

Conversation：termpaperofbirdmigration

ListentoaconversationbetweenastudentandhisBiologyprofessor.

S:Dr.Russell,IwashopingtodiscussmytermpaperwithyouImgettingalittlebitstuckhere.

P:Ofcourse,so...whatdoyouhavesofarWhatsyourtopic

S:Well,Iwantedtowriteaboutbirdmigration,butImhavingtroublefindingenoughsources.

P:Yourehavingtroublefindingsourcesonbirdmigration

S:No,actually,ontheparticularaspectofbirdmigrationthatIwanttowriteabout.

Thethingis,Iwantedtowritespecificallyonearlytheoriesofbirdmigration...describesomeofthetheories.LikehowAristotlethoughtthatbirdschangedintodifferentspeciesduringthewinter.Orhowothernaturaliststhoughtthatbiggerbirdscarriedsmallerbirdstowarmerspotsforthewintertime.ButIveonlygotacoupleofbookstoworkwithrightnow.

P:Hm...Ihavetoadmitthatitsaninterestingtopic,andyoucertainlyseemexcitedbyit.ButrememberItoldyoualltoaskyourselveshowyourtopicisgoingtohelpyoushowthatyoucanapplywhatyouvelearnedthissemester.AsummaryordescriptionisnotreallywhatImlookingforasmuchasyouranalysisofacertaintopic.

S:Iguessitsnotreallywhatweresupposedtodo,huh

P:Right.So,howaboutwethinkaboutsomeotherideasforyourpaper.Imeanyoudontneedtodiscardtheideacompletely...but...takeareallydifferentfocus.Um...forexample...youcouldpresentwhatyouthinkaresomereasons-therationale-behindsomeoftheerroneoustheoriesearlynaturalistshad.But,youllbesupportingyourviewswithcurrentresearch;thosearethesourcesyoullneedtoseekout.

S:Ok,IthinkIseewhatyouresaying.So,liketoday...todayweknowthatlotsofsmallbirdsmigrateatnight,butmaybe`causepeopledidntseethem-didntseethesmallbirdsmigrating-theyonlysawbiggerbirds,likegeesemigratingduringtheday.Theythoughtthatthe