2022 英语周报 高一 外研 59答案

13.∧【解析】硅晶体属于原子晶体,其中n(Si):(Si-Si)=1:2,有NA个Si就有2NA个Si--Si键,A正确;由于溶液的体积未知.无法判断两溶液中Na数日的大小关系、B错误;惰性电极电解食盐水时,阳极电极反应式为2C-2e-=Cl24,电路中通过2Ns个电子时,生成1 mol cl2,但由于Cl2所处温度和压强未知.无法计算Cl2的体积,C错误;n(SO2)=44.8L22.4L·mol2mol,Na2O:与SO:反应的化学方程式为Na2O)2 SO2==Na2SO4,转移2mol电子,2 mol na2O2与2 mol so2完全反应转移4mol电子,D错误。故选A

第三节书面表达wersionDear Sir or MadamMy name is Li Hua. As an exchange student fromChina, I am studying in a local school. I am reallydelighted to learn that a volunteer for your Chinese culturallic exhibition is required and I'm confident that I amtruly fit for thestart with, my advantage first lies in the fact that IChina and used to beand quite familiar with Chinese relics. Further-more, being an outgoing and optimistic boy, I am good atcommunicating with others and introducing Chinese cultureto the world is always my honor and my pleasure. Finallythere is no problem with my spoken English, as I havelived here for almost a year and I have no difficulty commu-dicating with others in EnglishI would really appreciate it if you can offer me thechance to be a volunteer in your museum. I am looking forward to your early reply.Li Hua

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