2022 英语周报 高二 牛津HNX 51答案

15.参考答案AD说明分析A错误,向0.1moL硝酸银溶液中滴入稀氨水,随着氨水的加入,δ(Ag)减少,δ{[Ag(NH)]}增加,结合图像变化趋势,δ(Ag)随着pNH3的增大而增大所以61代表的是(Ag),2代表的是δ{[Ag(NH3)]}。B正确,a点时,c(Ag)=c{[Ag(NH3)]}),pNH3=3.65,则c(NH3)=10365moL,K不稳{[Ag(NH)])=c2(NH3)(1036)2=1033。C正确,溶液中电荷守恒为c(Ag)+ c[Ag(NH)]}+c(NH)c(H)=c(OH)+c(NO3),物料守恒为c(Ag)+c{[Ag(NH)]}=c(NO3),两式整理得c(NH4)+c(H)=c(OH)。D错误,NH3与H反应生成NH4,使反应Ag+2NH2=[Ag(NH)]逆向移动,c(Ag3)增大,则δ(Ag)增大

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)

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