2022年普通高等学校招生全国统一考试·模拟调研卷QG(二)2各科试题及答案

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34.(1)BCD(2)①√2②πR3[(1)每个点起振的方向就是波源起振的方向，因此波源起振的方向沿y轴正方向，A错误；由图可知，波长入=8，根据)=入f,可知波源振动的频率f=1Hz,B正确；质点每振动一个周期，波向前传播一个波长，因此t=9.25s时，波向前传播了9入，此时x=13m处的质点，恰好位于正向最大位移处，因此位移为5cm,C正确；波每经过一个周期，质点运动4倍振幅，因此20s内，x=13m处的质点通过的路程s=20×4×0.05m=4m,D正确；t=20s时，波传播的距离△x=t=160m,而初始位置在x1=13m处，因此波刚好传播到x=173m处，E错误。(2)①光由空气进入透明柱体，入射角01=45°折射角02=30°(1分)根据折射定律得n=sind(2分)sin02解得n=√2(1分)②在图中作出三条折射光线，过平面右边界的、过圆心的和在弧面恰好M发生反射的，如图所示。即圆弧DFE部分能透射出光。KB由∠OBA=45°，∠EBA=60°可得∠OBE=15°(1分)G根据几何关系知∠OEB=15°，∠FOE=151根据全反射知识可知n=sin∠ADO(2分)解得∠ADO=45°(1分)所以∠DOE=60°(1分)则圆弧DFE的长度s=6·2πR=πR(1分]3

第一节One possible versionDear Sir/MadamKnowing the International Book Fair will be held nextweek in our city and that some volunteers are needed. I amwriting to recommend myselfThe following are my advantages. First of all, I speakEnglish so fluently that I have no difficulty communicatingwith foreigners. Secondly, as a monitor, I always organizeall kinds of social activities. More importantly, I am a reg-stered volunteer, so I have gained rich experience in volentering.I would appreciate it if I were given a chance. Lookingforward to your early reply.Yours.Li Hi第二节One possible versionLater that evening, my son came up to me, his handbehind his back. "I have something for you, Daddy, "hesaid. Beyond my expectation, he handed me a KenGriffey, Jr. card. He'd taken a pair of scissors and cutone copy of the Griffey off from the box. Now you don'thave to look for it anymore, "he said. Hearing what hesaid,I was shocked, and moved to tears. At once, the hugI gave him was the best price I ever paid for a cardI continued collecting, and even ended up buying andselling some old and valuable cards. However, there wasone card that I would never trade, which was a KenGriffey, Jr. card. Up to now, I still keep that Griffey, Jrcard, even if it has had the rough borders and the shabbycorners, and there is only a plain and simple board on theback. That is because that card. to me, is what baseball isall about. More importantly, it's also what loveall about