英语周报2022-2022高三第14期答案

8.CA.催化剂可降低活化能,但不能改变总反应的反应热,A错误;B.由原子守恒可得总反应:2NH2 CO2松多扎,吸附悬浮物而达到净水CO(NH2)2 H2O,除了生成CO(NH2)2,还会生成H2O,故原子利用率小于100%,B错误;C.由示意图可知,第步活化能E1小于第二步活化能E2,故第二步对总反应速率的影响更大,C正确;D.由过渡态1到最终产物,第二步发生CO键、N一H键和NO键的断裂,故D项错误。

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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