欢迎来到天天文库
浏览记录
ID:48185333
大小:62.50 KB
页数:13页
时间:2019-11-14
《2019年高中英语Module4GreatScientists单元检测题外研版必修4.doc》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,UniversityofLondonhavediscoveredthatbeeslearntoflytheshortestpossibleroutebetweenflowerseveniftheydisco
2、vertheflowersinadifferentorder.Beesareeffectivelysolvingthe“travelingsalesmanproblem”,andtheyarethefirstcreaturesfoundtodothis.Thetravelingsalesmanmustfindtheshortestroutethatallowshimtovisitalllocationsonhisroute.puterssolveitbyparingthelengthofallpossibleroutesandchoosingtheshortest,a
3、nditcankeepputersbusyfordays.However,beessolveitwithoutputerassistanceusingabrainthesizeofgrassseed.Dr.NigelRaine,fromtheSchoolofBiologicalSciencesatRoyalHollowayexplains,“Beessolvetravelingsalesmanproblemseveryday.Theyvisitflowersatmultiplelocationsandbecausebeesuselotsofenergytofly,th
4、eyfindaroutewhichkeepsflyingtoaminimum.”Theteamusedtheputertocontrolartificialflowerstotestwhetherbeeswouldfollowaroutedefinedbytheorderinwhichtheydiscoveredtheflowersoriftheywouldfindtheshortestroute.Afterexploringthelocationoftheflowers,beesquicklylearnedtoflytheshortestroute.Aswellas
5、improvingourunderstandingofhowbeesmovearoundthelandscapepollinating(授粉)cropsandwildflowers,thisresearch,whichisduetobepublishedinTheAmericanNaturalist,hasotherapplications.Ourlifestylereliesonnetworkssuchastrafficontheroads,informationflowontheWebandbusinesssupplychains.Byunderstandingh
6、owbeescansolvetheirproblemswithsuchatinybrain,wecanimproveourmanagementoftheseeverydaynetworkswithoutneedinglotsofputertime.Dr.Raineadds,“Despitetheirtinybrains,beesarecapableofextraordinaryfeatsofbehavior.Weneedtounderstandhowtheycansolvethetravelingsalesmanproblemwithoutaputer.”语篇解读:英
7、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.Howtosolvethe“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
此文档下载收益归作者所有