高二英语下学期周练试题1

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1、在学生就要走出校门的时候，班级工作仍要坚持德育先行，继续重视对学生进行爱国主义教育、集体主义教育、行为规范等的教育，认真落实学校、学工处的各项工作要求河北定州2016-2017学年第二学期高二英语周练试题（1）一、阅读理解1．Woulditsurpriseyoutolearnthat,likeanimals,treescommunicatewitheachotherandpassontheirwealthtothenextgeneration?UBCProfessorSimardexplainshowtreesarem

2、uchmorecomplexthanmostofuseverimagined.AlthoughCharlesDarwinthoughtthattreesarecompetingforsurvivalofthefittest,Simardshowsjusthowwronghewas.Infact,theoppositeistrue:treessurvivethroughtheirco-operationandsupport,passingaroundnecessarynutrition“dependingonwhonee

3、dsit”.Nitrogen（氮）andcarbonaresharedthroughmilesofundergroundfungi（真菌）networks,makingsurethatalltreesintheforestecologicalsystemgiveandreceivejusttherightamounttokeepthemallhealthy.Thishiddensystemworksinaverysimilarwaytothenetworksofneurons（神经元）inourbrains,andwh

4、enonetreeisdestroyed,itaffectsall.Simardtalksabout“mothertrees”,usuallythelargestandoldestplantsonwhichallothertreesdepend.Sheexplainshowdyingtreespassonthewealthtothenextgeneration,transportingimportantmineralstoyoungtreessotheymaycontinuetogrow.Whenhumanscutdo

5、wn“mothertrees”withnoawarenessofthesehighlycomplex“treesocieties”orthenetworksonwhichtheyfeed,wearereducingthechancesofsurvivalfortheentireforest.“Wedidn'ttakeanynoticeofit.”Simardsayssadly.“Dyingtreesmovenutritionintotheyoungtreesbeforedying,butwenevergivethema

6、chance.”Ifwecouldputacrossthemessagetotheforestryindustry,wecouldmakeahugedifferencetowardsourenvironmentalprotectioneffortsforthefuture.【小题1】Whatwouldbethebesttitleforthepassage?A.OldTreesCommunicateLikeHumansB.YoungTreesAreInNeedOfProtectionC.TreesAreMoreCompl

7、exThanYouThinkD.TreesContributeToOurSociety配合各任课老师，激发学生的学习兴趣，挖掘他们的学习动力，在学生中培养苦学精神，发扬拼搏精神，形成以勤学为荣的班风；充分利用学校开展的“不比基础比进步，不比聪明比勤奋”以及具有储能特色的“当月之星”的评选活动，积极探索素质教育的新途径在学生就要走出校门的时候，班级工作仍要坚持德育先行，继续重视对学生进行爱国主义教育、集体主义教育、行为规范等的教育，认真落实学校、学工处的各项工作要求【小题2】InSimard'sopinion,trees

8、_______.A.dependoneachotherB.protecttheirownwealthC.competeforsurvivalD.providesupportfordyingtrees【小题3】WecanlearnfromthepassagethatA.“mothertrees”areusuallyofnouseto