英语周报2022-2022第七期答案

书面表达One posssible versionDear Mr. Smith,I'm Li Hua, a senior 3 student. Learning that your City Culture department is looking for an English editorthis summer, I'm eager to apply for the position.As far as I'm concerned, city culture refers to a citys history, geography, customs, future, and so on. Asa native, I am quite familiar with our citys traditional culture. Besides, I have a good command of ErI' m especially good at English writing. Additionally, Im cooperative and creative, which will give me anadvantage for the position.I'll be greatly honored if I' m chosen for the job. If I'm admitted, please email me at lihua @16com.Yours sincerely,Li Hu

5.C【解析】由图可知,1mol·L-1HA溶液中c(H+)10-2mo,L-1,K,(HA)≈10-2×102=10-,A项错误;HA是弱酸,b点溶液的溶质是NaA和NaOH,溶液呈碱性,B项错误;a点到b点,先发生反应生成可水解的盐,然后碱过量,故水的电离程度先增大后减小,C项正确;不断加入NaOH溶液,溶液中离子浓度不断增大,溶液的导电性逐渐增强,D项错误

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