2008年南开大学考博英语真题.doc

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1、一、听力（1分×20=20分）二、词汇（0.5分×20=10分）三、阅读（1-10题1分，11-30题1.5分，共1分×10+1.5分×20=40分）(A)出自北京海淀区07年高三11月月考英语卷Tomanyweb-buildingspiders,mostofwhomarenearlyblind,thewebistheiressentialwindowontheworld:theirmeansofcommunicating,capturingprey（猎物）,meetingmatesandprotectingthemselves.Aweb-

2、buildingspiderwithoutitswebislikeamencastawayonanislandofsolidrock，totallyoutoftouchanddestinedtostarvetodeath.bycontrolpanelSoimportantisthewebtoanorb-webspider'ssurvivalthattheanimalwillcontinuetoconstructnewwebsdailyevenifitisbeingstarved.For16daysthestarvingspiderbuild

3、scompletelynormalwebs.Then,astheanimalgetsscrawnier（憔悴的），itconstructsawider-meshedwebusingfewerstrands（线）.Suchwebswouldonlytraplargerprey,whichismoreeconomicalfromtheperspectiveofastarvingspider.bycontrolpanelThespiderstoresenergybyrecyclingwebprotein.Itsimplyeatsitsownweb

4、eacheveningandreusesittoproducenewsilk.Instudieswithradioactively，labeledmaterials,itwasfoundthat95percentofwebproteinreappearsinthenextday'web.Mostoftheenergyneededforweb-buildingisusedinwalkingoverthestrandsastheyarelaiddown．bycontrolpanelScientistsareimpressedbytheadapt

5、abilityofthespider'shighlypreprogrammedbrain,whichislargerforitssizethanthebrainofanyotherinvertebrate（无脊推动物）．Ifweb-buildingisinterrupted,orifsomeoftheexistingstrandsaredestroyed，thespidersimplygoesbacktoseewherethewebisleftoffandthenfinishesbuildinganormalweb.Onespiderwil

6、lfinishbuildingtheincompletewebofanother.bycontrolpanel1.Atitlethatwouldbestexpressthemainideaofthepassagewouldbe.A.SecretsofSpiders.B.SecretsoftheWebC.SecretsofNatureD.ANewDiscoveryofScientists2.AccordingtothepassagewhichofthefollowingstatementsistrueA.Allweb-buildingspid

7、ersareblindB.MostspidersareblindC.Onlyasmallpartofweb-buildingspiderscansee.D.Allspiderscanweavewebs.3.Withoutitswebaweb-buildingspiderwouldNOTbeableto.A.walkquicklyB.seethepreyclearlyC.conserveitsenergyD.survive4.Aspiderconservesitsenergy.A.becauseitconstructsnewwebsdaily

8、B.asitwalksoverthestrandsitlaysC.byeatingitsownwebproteinandthenre-usingitinthenewwebD.by