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2017考研数学真题解析(张宇)

考研 2017考研数学真题 考研数学真题解析

张宇:好,各位新东方在线的同学们大家好!各位2017年考研的同学们,考研数学刚刚结束,我刚刚拿到了整理的试题。接下来我们对2017年考研数学试题做一个比较详细、深刻的分析。每年到这个时候,现在这个时

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    考研 2017考研数学真题 考研数学真题

    我们先来看看大题。这个大题22题概率的大题。X是一个离散的随机变量,取的点的是1/2,1/2,Y的概率密度,Y大于0小于1,这是0,这是其他。那么一个离散一个连续,而且X与Y独立。那么这种问题,第一

  • 2021考研数学一:极限和微分方程分析及2022复习注意问题

    考研 2021考研数学一2021考研

    2021年考研真题中,数学一第17题是关于函数极限计算的题,数学一第13题是欧拉方程。数二第1题高阶无穷小,第13题是高于二阶的常系数齐次线性微分方程求解问题,第15题是函数极限的计算,第20题是对

  • 2020考研英语阅读冲刺模拟题及答案解析(1)

    考研 2020考研英语2020考研

    【导语】眼瞅着已经进入2020考研冲刺阶段,现阶段对于大部分2020考研新手来说肯定是无比紧张的,在这里无忧考网想提醒大家,稳住心态,冲到最后!距离考研初试时间所剩无几,如何能够更好地做好英语阅读呢?

  • 2018考研英语阅读经典试题及答案(23)

    新东方在线推荐:2018年考研一次顺利提分课程!!一科不过,全科免费ItispossibleforstudentstoobtainadvanceddegreesinEnglish

  • 2018考研英语阅读经典试题及答案(24)

    新东方在线推荐:2018年考研一次顺利提分课程!!一科不过,全科免费Proponentsofdifferentjazzstyleshavealwaysarguedthattheir

  • 2018考研英语阅读经典试题及答案(25)

    新东方在线推荐:2018年考研一次顺利提分课程!!一科不过,全科免费Investigatorsofmonkey’ssocialbehaviorhavealwaysbeenstruckbymonkeys’aggressivepotentialandtheconsequentneedforsocialcontroloftheiraggressivebehavior.Studiesdirectedatdescribingaggressivebehaviorandthesituationsthatelicitit,aswellasthesocialmechanismsthatcontrolit,werethereforeamongthefirstinvestigationsofmonkeys’socialbehavior.Investigatorsinitiallybelievedthatmonkeyswouldcompeteforanyresourceintheenvironment:hungrymonkeyswouldfightoverfood,thirstymonkeyswouldfightoverwater,and,ingeneral,attimemorethanonemonkeyinagroupsoughtthesameincentivesimultaneously,adisputewouldresultandwouldberesolvedthroughsomeformofaggression.However,themotivatingforceofcompetitionforincentivesbegantobedoubtedwhenexperimentslikeSouthwick’sontherectionofspaceorthewithholdingoffoodfailedtoprocemorethantemporaryincreasesinintragroupaggression.Indeed,fooddeprivationnotonlyfailedtoincreaseaggressionbutinsomecasesactuallyresultedindecreasedfrequenciesofaggression.Studiesofanimalsinthewildunderconditionsofextremefooddeprivationlikewiserevealedthatstarvingmonkeysdevotedalmostallavailableenergytoforaging,withlittleenergyremainingforaggressiveinteraction.Furthermore,accumulatingevidencefromlaterstudiesofavarietyofprimategroups,forexample,thestudyconctedbyBernstein,indicatesthatoneofthemostpotentstimuliforelicitingaggressionistheintroctionofanintruderintoanorganizedgroup.Suchintroctionsresultinfarmoreseriousaggressionthanthatprocedinanyothertypesofexperimentscontrivedtoprocecompetition.Thesestudiesofintruderssuggestthataltmembersofthesamespeciesintrocedtooneanotherforthefirsttimeshowconsiderablehostilitybecause,intheabsenceofasocialorder,onemustbeestablishedtocontrolinteranimalrelationships.Whenasinglenewanimalisintrocedintoanexistingsocialorganization,thenewcomermeetsevenmoreseriousaggression.Whereasinthefirstcaseaggressionestablishesasocialorder,inthesecondcaseresidentanimalsmobtheintruder,therebyinitiallyexcludingthenewanimalfromtheexistingsocialunit.Thesimultaneousintroctionofseveralanimalslessenstheeffect,ifonlybecausethegroupdividesitsattentionamongthemultipletargets.If,however,theseveralanimalsintrocedagroupconstitutetheirownsocialunit,eachgroupmayfighttheopposinggroupasaunit;but,again,noindivialissubjectedtomassattack,andtheverycohesionofthegroupsprecludesprolongedindivialcombat.Thesubmissionofthedefeatedgroup,ratherthanunleashinguncheckedaggressiononthepartofthevictoriousgroup,recesboththeintensityandfrequencyoffurtherattack.Monkeygroupsthereforeseemtobeorganizedprimarilytomaintaintheirestablishedsocialorderratherthantoengageinhostilitiesperse.1.Theauthorofthetextisprimarilyconcernedwith[A]advancinganewmethodologyforchangingamonkey’ssocialbehavior.[B]comparingthemethodsofseveralresearchstudiesonaggressionamongmonkeys.[C]explainingthereasonsforresearcher’sinterestinmonkey’ssocialbehavior.[D]discussingthedevelopmentofinvestigators’theoriesaboutaggressionamongmonkeys.2.Whichofthefollowingbestsummarizesthefindingsreportedinthetextabouttheeffectsoffooddeprivationonmonkeys’behavior?[A]Fooddeprivationhasnoeffectonaggressionamongmonkeys.[B]Fooddeprivationincreasesaggressionamongmonkeysbecauseoneofthemostpotentstimuliforelicitingaggressionisthecompetitionforincentives.[C]Fooddeprivationmayincreaselong-termaggressionamongmonkeysinalaboratorysetting,butitprocesonlytemporaryincreaseamongmonkeysinthewild.[D]Fooddeprivationmaytemporarilyincreaseaggressionamongmonkeys,butitalsoleadstoadecreaseinconflict.3.Thetextsuggeststhatinvestigatorsofmonkeys’socialbehaviorhavebeenespeciallyinterestedinaggressivebehavioramongmonkeysbecause[A]aggressionisthemostcommonsocialbehavioramongmonkeys.[B]successfulcompetitionforincentivesdeterminesthesocialorderinamonkeygroup.[C]situationthatelicitaggressivebehaviorcanbestudiedinalaboratory.[D]mostmonkeysarepotentiallyaggressive,yettheyliveinsocialunitsthatcouldnotfunctionwithoutcontroloftheiraggressiveimpulses.4.Thetextsuppliesinformationtoanswerwhichofthefollowingquestions?[A]Howdoestherectionofspaceaffectintragroupaggressionamongmonkeysinanexperimentalsetting?[B]Dofamilyunitswithinamonkeysocialgroupcompetewithotherfamilyunitsforfood?[C]Whatarethemechanismsbywhichthesocialorderofanestablishedgroupofmonkeyscontrolsaggressionwithinthatgroup?[D]Howdomonkeysengagedinaggressionwithothermonkeyssignalsubmission?5.Whichofthefollowingbestdescribestheorganizationofthesecondparagraph?[A]Ahypothesisisexplainedandcounterevidenceisdescribed.[B]Atheoryisadvancedandspecificevidencesupportingitiscited.[C]Fieldobservationsaredescribedandaconclusionabouttheirsignificanceisdrawn.[D]Twotheoriesareexplainedandevidencesupportingeachofthemisdetailed.

  • 2018年考研英语完形填空精选练习题第一套

    考研 2018年考研英语2018年考研

    新东方在线推荐:2018年考研一次顺利提分课程!!一科不过,全科免费Musiccomesinmanyforms;mostcountrieshaveastyleoftheiro

  • 2018年考研英语完形填空精选练习题第二套

    考研 2018年考研英语2018年考研

    新东方在线推荐:2018年考研一次顺利提分课程!!一科不过,全科免费ThefamilyisthecenterofmosttraditionalAsians'lives.Ma

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    考研 2018年考研英语2018年考研

    新东方在线推荐:2018年考研一次顺利提分课程!!一科不过,全科免费Generallyspeaking,aBritishiswidelyregardedasaquiet,shy