2022 英语周报 高一 课标 26答案

短文改错We were traveling in New Brunswick, Canada. My mother and I were sitting on a bench in a park while alady walked towards us with her dog. We began chatting with her but told her something interesting. It wasandtimes for dinner and she invited us to gone to her home for dinner. She even insists that we tell her what wetimeInsistewanted to eat. Maybe we looked hungrily. We didnt know what to say. She said, "I know. I'll cook steak forhungryus. Please come to my home at the six. "We showed up for dinner and we were surprised at the big dinner. Ityouwas because A the lady and her lovely family who we spent an amazing eveningthat

13C`【解析】装置X为Zn与稀硫酸反应制备H2的装置,分液漏斗可调节稀硫酸的滴入速率从而控制装置①中产生气泡的快慢,A正确;装置①盛有浓硫酸,用来干燥H2,B正确;装置②为检验产物H2Q的装置,可盛装白笆的无水硫酸铜固体,装置③的主要目的是吸收I2O并防装置④中的H2O进入装置②中造成干扰,可以是无水CaCl或无水硫酸铜,但碱石灰会吸收CO2,不能是碱石灰,C错误;H2与空气混合加热易发生爆炸,故在加热装置Y前,应先让装置X反应“段时间,排除装置中的空气,D正确。故选C

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