2022-2022年英语周报高二课标第7期答案

23.(1)2R(2分)偏小(1分)(2)30.30(1分)(3)正(1分)(4)(2分)2R(2分)b-a)Du2I解析:(1)由欧姆定律可得交·R3·R,所以灵敏电流计的内阻R=2R;增加一条支路,总电阻减小,总21电流增大,所以通过R的电流比。更大,真实值大于2R,所以测量值与电流表内阻的真实值相比偏小;(2)由游标卡尺读数原理可得,第6格对齐,即直径D=30mm 0.05×6mm=30.30mm;(3)由左手定则可得正离子往a方向运动、负离子往c方向运动,所以与a极相连的是灵敏电流计G的正极;UBDU(4)由欧姆定律可得1=RR R, x,其中r为电源内阻,所以了=,B⊥R, rBD,由图象可得斜率kCBb,所以磁感应强度B为)D,纵截距aBD,所以R4 ==,b-a2RR

第二节书面表达【写作思路】根据试题要求,考生需要写一篇记叙文,记述身边一位值得尊敬和爱戴的人。首先考生需要介绍自己最尊敬和爱戴的人是谁,简单地介绍一下他(她)。然后,陈述为什么他(她)值得尊敬和爱戴。最后,可以对前文进行一个总结,使文章结构严谨。本文的写作重点在"尊敬和爱戴的原因",考生可围绕这个要点适当拓展,从性格特点、处事风格等方面展开写作。【范文赏读】The most beloved and respected person around me is my teacher, Ms LiThough she has been teaching English for twenty years, she is still passionateabout teaching. She is kind and considerate towards us just like our dear motherWe all respect her because she always tries new ways to make her classes livelyand interesting. Hardworking and knowledgeable, she is one of the best teachersin our school. When we have a problem, we will turn to her for help. She alwaystalks to us patiently and helps us to find a solution. In our eyes, she is not onlyour teacher, but also our best friend. Those are why she deserves our respect【亮点词句】亮点词汇: beloved, respected, be passionate about, be consideratetowards, turn to sb. for help, in one's eyes亮点句式:Why引导的表语从句( why she deserves our respect)

以上就是2022-2022年英语周报高二课标第7期答案，更多英语周报答案请关注本网站。