资源描述：
《（浙江专用）2019届高三英语一轮复习 考点强化练29 unit 4 global warming 新人教版选修6》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、Unit4GlobalwarmingⅠ.阅读理解Woulditsurpriseyoutolearnthat,likeanimals,treescommunicatewitheachotherandpassontheirwealthtothenextgeneration?UBCProfessorSimardexplainshowtreesaremuchmorecomplexthanmostofuseverimagined.AlthoughCharlesDarwinthoughtthattreesarecompetingforsurvivalofthefittest,Simards
2、howsjusthowwronghewas.Infact,theoppositeistrue:treessurvivethroughtheirco-operationandsupport,passingaroundnecessarynutrition“dependingonwhoneedsit”.Nitrogen(氮)andcarbonaresharedthroughmilesofundergroundfungi(真菌)networks,makingsurethatalltreesintheforestecologicalsystemgiveandreceivejustther
3、ightamounttokeepthemallhealthy.Thishiddensystemworksinaverysimilarwaytothenetworksofneurons(神经元)inourbrains,andwhenonetreeisdestroyed,itaffectsall.Simardtalksabout“mothertrees”,usuallythelargestandoldestplantsonwhichallothertreesdepend.Sheexplainshowdyingtreespassonthewealthtothenextgenerati
4、on,transportingimportantmineralstoyoungtreessotheymaycontinuetogrow.Whenhumanscutdown“mothertrees”withnoawarenessofthesehighlycomplex“treesocieties”orthenetworksonwhichtheyfeed,wearereducingthechancesofsurvivalfortheentireforest.“Wedidn’ttakeanynoticeofit,”Simardsayssadly.“Dyingtreesmovenutr
5、itionintotheyoungtreesbeforedying,butwenevergivethemachance.”Ifwecouldputacrossthemessagetotheforestryindustry,wecouldmakeahugedifferencetowardsourenvironmentalprotectioneffortsforthefuture.【语篇导读】本文是一篇说明文,主要介绍了树和树之间不是你死我活的竞争关系,而是相互依赖的互助关系。快要死的树会将自己的营养传给小树让它们更好地成长。如果人们知道这些现象,就可以更好地保护这些树。1.Wha
6、twouldbethebesttitleforthepassage? A.OldTreesCommunicateLikeHumansB.YoungTreesAreInNeedOfProtectionC.TreesAreMoreComplexThanYouThinkD.TreesContributeToOurSociety答案C解析标题概括题。结合全文内容可知,文章介绍了树和树之间不是你死我活的竞争关系,而是相互依赖的互助关系。快要死的树会将自己的营养传给小树让它们更好地成长,所以树木比我们想象的更复杂。C项适合做标题。故选C项。2.InSimard’sopi
7、nion,trees . A.dependoneachotherB.protecttheirownwealthC.competeforsurvivalD.providesupportfordyingtrees答案A解析细节理解题。根据第二段最后一句可知,树与树之间的关系是互相依赖的。故选A项。3.Wecanlearnfromthepassagethat . A.“mothertrees”areusuallyofnousetoothertrees.B.CharlesDarwinhadt
