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1、托福听力经典加试题及答案(汇总)鸟类迁徙BirdmigrationStudenthavingdifficultiesinwritingtermpaper原文：Conversation：termpaperofbirdmigrationListentoaconversationbetweenastudentandhisBiologyprofessor.S:Dr.Russell,IwashopingtodiscussmytermpaperwithyouI'mgettingalittlebitstuckhere.P:Ofco
2、urse,so...whatdoyouhavesofar?What'syourtopic?S:Well,Iwantedtowriteaboutbirdmigration,butI'mhavingtroublefindingenoughsources.P:You'rehavingtroublefindingsourcesonbirdmigrationS:No,actually,ontheparticularaspectofbirdmigrationthatIwanttowriteabout.Thethingis,Iwa
3、ntedtowritespecificallyonearlytheoriesofbirdmigration...describesomeofthetheories.LikehowAristotlethoughtthatbirdschangedintodifferentspeciesduringthewinter.Orhowothernaturaliststhoughtthatbiggerbirdscarriedsmallerbirdstowarmerspotsforthewintertime.ButI'veonlyg
4、otacoupleofbookstoworkwithrightnow.P:Hm...Ihavetoadmitthatit'saninterestingtopic,andyoucertainlyseemexcitedbyit.ButrememberItoldyoualltoaskyourselveshowyourtopicisgoingtohelpyoushowthatyoucanapplywhatyou'velearnedthissemester.Asummaryordescriptionisnotreallywha
5、tI'mlookingforasmuchasyouranalysisofacertaintopic.S:Iguessit'snotreallywhatwe'resupposedtodo,huhP:Right.So,howaboutwethinkaboutsomeotherideasforyourpaper.Imeanyoudon'tneedtodiscardtheideacompletely...but...takeareallydifferentfocus.Um...forexample...youcouldpre
6、sentwhatyouthinkaresomereasons-therationale-behindsomeoftheerroneoustheoriesearlynaturalistshad.But,you'llbesupportingyourviewswithcurrentresearch;thosearethesourcesyou'llneedtoseekout.S:Ok,IthinkIseewhatyou'resaying.So,liketoday...todayweknowthatlotsofsmallbir
7、dsmigrateatnight,butmaybe`causepeopledidn'tseethem-didn'tseethesmallbirdsmigrating-theyonlysawbiggerbirds,likegeesemigratingduringtheday.Theythoughtthatthebigbirdswerecarryingthesmallonesundertheirwings.P:Thereyougo!That'sexactlywhatImean.You'reshowingthatyou'r
8、ethinkingaboutthetopic,notjusttellingmewhatyouread.S:Ok,IalsohaveareallycoolexampleofamigratorybirdthatI'dliketodiscussinmypaper.It'stheCommonPoorwill—ImeanitseemsthatsomeOr
