全国通用20英语19届高考专题复习：专题9阅读理解（科技说明文）

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1、专题09—阅读理解（科技说明文）1.【2017年高考江苏卷英语】BBeforebirth,babiescantellthedifferencebetweenloudsoundsandvoices・Theycanevendistinguishtheirmother"svoicefromthatofafemalestranger.Butwhenitcomestoembryoniclearning（胎教），birdscouldruletheroost.AsrecentlyreportedinTheAuk:OrnithologicalAdva

2、nces,somemotherbirdsmayteachtheiryoungtosingevenbeforetheyhatch（孵化）.New-bornchickscanthenimitatetheirmom'scal1withinafewdaysofenteringtheworld.Red-backedfaarywens{fS^W）＞whichliveinnorthernandeasternAustraba.laythreeorfoureggsatatime.Thiseducationalmethodwasfirstobserved

3、in2012bySoniaKleindorfer,abiologistatFlindersUniversityinSouthAustralia,andhercolleagues.FemaleAustraliansuperbfairywrenswerefoundtorepeatonesoundoverandoveragainwhilehatchingtheireggs.Whentheeggswerehatched,thebabybirdsmadethesimilarchirptotheirmothers—asoundthatserved

4、astheirregularHfeedme!Hcall.Tofindoutifthespecialqualitywasmorewidespreadinbirds,theresearcherssoughtthered-backedfairywren,anotherspeciesofAustraliansongbird・Firsttheycollectedsounddatafrom67nestsinfoursitesinQueenslandoreandafterhatching・Thentheyidentifiedbeggingcalls

5、byanalyzingtheorderandnumberofnotes.Acomputeranalysisblindlycomparedcallsproducedbymothersandchicks,rankingthembysimilarity.Itturnsoutthatbabyred-backedfairywrensalsoemergechirpingliketheirmoms.Andthemorefrequentlymothershadcalledtotheireggs,themoresimilarwerethebabies，

6、beggingcalls.Inaddition,theteamsetupaseparateexperimentthatsuggestedthatthebabybirdsthatmostcloselyimitatedtheirmom"svoicewererewardedwiththemostfood・Thisobservationhintsthateffectiveembryoniclearningcouldsignalneurological（神经系统的）strengthsofchildrentoparents.Anevolution

7、aryinferencecanthenbedrawn."Asaparent,doyouinvestinqualitychildren,ordoyouinvestinchildrenthatareinneed?HKleindorferasks.HOurresultssuggestthattheymightbegoingforquality.H58.TheunderlinedphraseinParagraph1meansn”・A・betheworstB・bethebestC.betheasbadD・bejustasgood58.Whata

8、reKleindorfer"sfindingsbasedon?A.Similaritiesbetweenthecallsofmomsandchicks.B.Theobservationoffairywrensacross