2024安徽A10联盟高三11月阶段考语文试卷及参考答案

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Paragraph IJatin looked up and he saw the other boys rushingahead. Refusing to give up at this crucial point, Jatinclenched his teeth, jumped to his feet and ran as fast as hecould. Finally, he was the fourth one to dash across thefinish line. Jatin couldnt help sobbing at the thought ofletting his sister down. But much to his surprise, the run-ner who collided with him was disqualified for breaking therule and Jatin won the third prize. Jatin felt overjoyed andrelieved during the award ceremony, holding the shoesclose to his chestParagraph 2Filled writh pleasure, Jatin walked home in no timeHe could not wait to see his sister and share the good newsOn his arrival, Jatin found Neha was walking about outsidnervously and anxiously. " Neha, see what I have got foryou.Jatin said excitedly, taking the prize out of his bagwith his trembling hands. The instant Neha saw the shoesher face lit up. So thrilled was she that she threw herself atJatin."Thank you! Jatin. " Tears of joy welled up in theieyes as the brother and the sister hugged tightly together

24.(12分)解:(1)线框先做自由落体运动,后做匀速直线运动,设线框匀速运动的速度为v,线框自由下落的时间为t1则有t1==(1分)线框匀速下落的时间为t2,则有t2=-(1分依题意有t=t1+t2联立以上三式解得=+,代入数据解得v=0.2m/s或v2=0.8m/(2分)(2)线框在经过MN过程中做匀速直线运动,受力平衡,则有=mg(1分)线框的上下边都在切割磁感线,则产生电动势为E=E1+E2=2E=2B/v(2分)上下两边都受到安培力作用,则有F安=F1+F2=2BI(2分)根据欧姆定律有R(1分)联立以上各式解得B=Mgrg代入数据解得B1=31.25T或B2=15.625T(2分)

3.D【解析】题干内容主要述及大量黄金白银流入西欧之后,推动了西北欧工业的发展,进而促进了欧洲社会的转型,故选D项。根据所学知识可知影响西班牙发展的因素是其政府没有把掠夺来的财富转化为资本而不是商业革命,排除A项;根据题干中“与葡萄牙相比,西班牙更有利于在17世纪成为经济中心,然而它错过了机会”,可知西班牙并没有成为经济中心,也就没有“欧洲经济中心的转移”的说法,排除B项;题干中述及的是西班牙没有把财富转化为资本才导致它“错过了机会”没有强调社会制度的原因排除C项。故选D