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ID:45534162
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页数:13页
时间:2019-11-14
《2019年高中英语 Module 4 Great Scientists单元检测题 外研版必修4》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、2019年高中英语Module4GreatScientists单元检测题外研版必修4第一部分 听力第二部分 阅读理解(共两节,满分40分)第一节(共15小题;每小题2分,满分30分)阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项。AScientistsatRoyalHolloway,UniversityofLondonandQueenMary,UniversityofLondonhavediscoveredthatbeeslearntoflytheshortestpossibleroutebetweenflowerseve
2、niftheydiscovertheflowersinadifferentorder.Beesareeffectivelysolvingthe“travelingsalesmanproblem”,andtheyarethefirstcreaturesfoundtodothis.Thetravelingsalesmanmustfindtheshortestroutethatallowshimtovisitalllocationsonhisroute.puterssolveitbyparingthelengthofallpossibleroutes
3、andchoosingtheshortest,anditcankeepputersbusyfordays.However,beessolveitwithoutputerassistanceusingabrainthesizeofgrassseed.Dr.NigelRaine,fromtheSchoolofBiologicalSciencesatRoyalHollowayexplains,“Beessolvetravelingsalesmanproblemseveryday.Theyvisitflowersatmultiplelocationsa
4、ndbecausebeesuselotsofenergytofly,theyfindaroutewhichkeepsflyingtoaminimum.”Theteamusedtheputertocontrolartificialflowerstotestwhetherbeeswouldfollowaroutedefinedbytheorderinwhichtheydiscoveredtheflowersoriftheywouldfindtheshortestroute.Afterexploringthelocationoftheflowers,
5、beesquicklylearnedtoflytheshortestroute.Aswellasimprovingourunderstandingofhowbeesmovearoundthelandscapepollinating(授粉)cropsandwildflowers,thisresearch,whichisduetobepublishedinTheAmericanNaturalist,hasotherapplications.Ourlifestylereliesonnetworkssuchastrafficontheroads,inf
6、ormationflowontheWebandbusinesssupplychains.Byunderstandinghowbeescansolvetheirproblemswithsuchatinybrain,wecanimproveourmanagementoftheseeverydaynetworkswithoutneedinglotsofputertime.Dr.Raineadds,“Despitetheirtinybrains,beesarecapableofextraordinaryfeatsofbehavior.Weneedtou
7、nderstandhowtheycansolvethetravelingsalesmanproblemwithoutaputer.”语篇解读:英国的科学家发现,蜜蜂在花丛中飞行时,总是能够找到最近的路线,这个“销售员旅行难题”即使用电脑也需要好几天才能解决。21.Whatwouldbethebesttitleofthepassage?A.BeeshelpsalesmentravelB.TinybrainedbeessolveaplexmathematicalproblemC.HowbeesdiscovertheflowersD.Howtosol
8、vethe“travelingsalesmanproblem”答案:B 主旨大意题。“销售员旅行难题”用计算机也需要好几天才能解决,而蜜蜂毫不费力地就
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