2015考研真题及答案解析

未知驱动探索，专注成就专业考研真题及答案解析1.导言考研是中国年轻人追求更高学历的一种途径。每年的考研真题及答案解析对于考研考生来说都是重要的备考资料。本文将对2015年考研真题及其答案进行解析，帮助考生更好地备考。2.考研真题及答案解析2.1英语2.1.1阅读理解题目Passage1:Therearethreethingsinparticularthatcancausefatigue:lackofsleep,poornutritionandover-exertion.Lackofsleepistheprimarycauseofdaytimefatigue.Ifyoudonotgetenoughsleep,orifyoursleeppatternsaredisrupted,youwillfeeltiredduringtheday.Poornutritioncanalsocausefatigue.Ifyoudonoteatabalanceddiet,orifyouskipmeals,yourbodymaynotbegettingthenutrientsitneedstofunctionproperly.Thiscanresultinfatigue.Finally,over-exertioncancausefatigue.Ifyouareconstantlypushingyourselftodomorethanyouarecapableof,youwilleventuallybecometired.Accordingtothepassage,whatarethreecausesoffatigue?A.Poornutrition,lackofsleep,andlackofexercise.B.Lackofsleep,lackofdaylight,andover-exertion.C.Poornutrition,lackofexercise,andover-exertion.D.Lackofsleep,poornutrition,andover-exertion.答案及解析D.Lackofsleep,poornutrition,andover-exertion.根据文章内容，作者提到了三个导致疲劳的原因，分别是缺乏睡眠，营养不良和过度劳累。因此，答案为D。2.1.2翻译题目Directions:TranslatethefollowingsentencesintoChinese.(10points)IfIhadknownitwouldrain,Iwouldhavebroughtmyumbrella.Althoughhelacksexperience,hehasgreatpotential.Themoreyoupractice,thebetteryouwillbecome.答案及解析如果我知道会下雨，我会带上我的雨伞。尽管他经验不足，他有很大的潜力。你越多练习，你会变得越好。根据题目要求将英语句子翻译成中文，结合句子本身的意思进行翻译即可。2.2数学2.2.1概率论与数理统计题目已知随机变量X~B(5,0.3)，则P(X≥2)=___。A.0.836B.0.545C.0.621D.0.319答案及解析C.0.621根据题目中已知的随机变量X的概率分布，可以使用二项分布的概率质量函数来计算P(X≥2)。根据计算得到的概率，选项C是与计算结果相符合的选项，因此为正确答案。3.总结本文对2015年考研真题及答案进行了解析，