2015考研真題及答案解析

未知驅(qū)動探索，專注成就專業(yè)考研真題及答案解析1.導(dǎo)言考研是中國年輕人追求更高學(xué)歷的一種途徑。每年的考研真題及答案解析對于考研考生來說都是重要的備考資料。本文將對2015年考研真題及其答案進(jìn)行解析，幫助考生更好地備考。2.考研真題及答案解析2.1英語2.1.1閱讀理解題目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.根據(jù)文章內(nèi)容，作者提到了三個導(dǎo)致疲勞的原因，分別是缺乏睡眠，營養(yǎng)不良和過度勞累。因此，答案為D。2.1.2翻譯題目Directions:TranslatethefollowingsentencesintoChinese.(10points)IfIhadknownitwouldrain,Iwouldhavebroughtmyumbrella.Althoughhelacksexperience,hehasgreatpotential.Themoreyoupractice,thebetteryouwillbecome.答案及解析如果我知道會下雨，我會帶上我的雨傘。盡管他經(jīng)驗不足，他有很大的潛力。你越多練習(xí)，你會變得越好。根據(jù)題目要求將英語句子翻譯成中文，結(jié)合句子本身的意思進(jìn)行翻譯即可。2.2數(shù)學(xué)2.2.1概率論與數(shù)理統(tǒng)計題目已知隨機(jī)變量X~B(5,0.3)，則P(X≥2)=___。A.0.836B.0.545C.0.621D.0.319答案及解析C.0.621根據(jù)題目中已知的隨機(jī)變量X的概率分布，可以使用二項分布的概率質(zhì)量函數(shù)來計算P(X≥2)。根據(jù)計算得到的概率，選項C是與計算結(jié)果相符合的選項，因此為正確答案。3.總結(jié)本文對2015年考研真題及答案進(jìn)行了解析，