托福听力tpo51 section1 对话讲座原文+题目+答案+译文.pdf

托福听力tpo51section1对话讲座原文+题目+答案+译文

Conversation11

原文1

题目3

答案5

译文5

Lecture17

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题目9

答案11

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Lecture213

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题目15

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Conversation1

原文

NARRATOR:Listentopartofaconversationbetweenastudentandherbiology

professor.

MALEPROFESSOR:Sotheassignmentistoreproduceoneoftheanimalcamouflage

experimentswereadaboutinourtextbook.Whichexperimentdidyoupick?

FEMALESTUDENT:Well...IwaswonderingifIcouldtrytoreproduceanexperiment

thatskindatheoppositeofwhatwasdiscussedinthetextbook?

MALEPROFESSOR:So,insteadofhowandwhyananimalmighthideitself,youwant

todosomethingaboutwhyananimalmightwanttobeseen?Hmmm.Tellmemore.

FEMALESTUDENT:Well,Igottheideafromoneofthejournalsyousaidweshould

lookat…itsanexperimentabout,um,theycalledthemeyespotsinthearticle?

MALEPROFESSOR:Eyespots,sure,thepatternsonthewingsofmothsandbutterflies

thataregenerallybelievedtoscareoffpredatorsbecausetheylooklikebigeyes.

FEMALESTUDENT:Yeah,exceptthearticlewasaboutanexperimentthatdisputes

thattheory.

MALEPROFESSOR:Well,weknowthatthemarkingsdoscarethebirds,buttheidea

thatthespotslooklikeeyesis,wellthatsjustacommonlyheldbelief.

FEMALESTUDENT:So—thatsnotevenbasedonresearch?

MALEPROFESSOR:Well,thiswholeideaofmothorbutterflymarkingsbeingscary

becausetheylooklikeeyesrestsonhowweimaginethattheirpredators—likebirds

—perceivethemarkings.Andwecanneverreallyknowthat.Allwecandois

observebirdbehavior.Buttellmemoreabouttheexperiment.

FEMALESTUDENT:OK,sotheexperimentlookedattheshapesofthemarkingson

mothwings.Theresearcherswantedtoknowifthemarkingsthatwereroundor

eye-shapedweremoreeffectiveatdeterringpredatorsthansquareorrectangular

markings.

MALEPROFE