2022届全国高考分科模拟检测卷(三)3历史答案

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读后续写I fell onto the ground,lying in a pool of blood.Meanwhile,our screams were heard by two hunters whowere not far away from us.They rushed over to where wewere.On seeing what was happening and the crocodile.which was still floating in the water behind me,one ofthem fired a shot in the air to frighten the crocodile away.It had the desired effect.The crocodile stopped in histracks,moved back a few steps from the edge of the pond.and disappeared hurriedly into the water.Then.Ipassed out.When I came to myself,I found myself in an unfa-miliar environment.The smell of antiseptic told me that Iwas in the hospital.I later learned from my mother that Iwas rushed to the casualty ward immediately by the twothunters.I was treated for opening wounds on my right ann-kle and a long deep cut which required fifty six stitches.lyMum reminded me of how fortunate I was to have had thestwo hunters nearby and have escaped from the jaws of thehecrocodile.What a narrow escape it really was!

12.(1)如图所示(2分)(2)0.301.20(每空1分)(3)1.45(1分)0.82(1分)略大于(1分)解析:(1)注意电表的量程,正、负接线柱,电流表的内、外接法,滑动变阻器的接法,滑动变阻器的滑片的位置,电源的正、负极等。所有的连线均应接连在接线柱上,连线过程中线路不能交叉。(2)由表中数据可知电流表选用的量程是0~0.6A,电压表的量程为0~3V,故图丙中电流表的示数为0.30A,电压表的示数为1.20V。(3)U-1图像的斜率绝对值为电源内阻,由图丁可知电源内阻r=-45=10a=0.82a若考虑流过电压表的电流,则有E=+(1+)r,整理得U=-1E--1,则U-图1R1像与纵轴的交点小于E,故测量值略小于真实值。