英语周报 2018-2022 高二 HZ答案

19.(13分)(1)作安全瓶,防止倒吸(1分)(2)S(2分)(3)NaOH溶液(2分)(4)蒸发浓缩、冷却结晶(2分)(5)2.48×10-3y100%(2分)(6)BD(2分,漏选得1分,错选得0分)(7)CN S,03=SCN, SO3(2 s)

第二节书面表达One possible versionDear peterI know you are interested in ancient Chinese cultureThere is a good news that an exhibition of ancient Chineseinventions will be held in our school next Monday. It willlast for five days. We can visit it at any time duringthe exhibitionThe show will display some great inventions in ancientChina. including the world-famous Four Great Inventionsthe compass, papermaking, gunpowder and printing. Theyhad significant effects on the development of society. Forexample, thanks to papermaking and printing, a great dealof ancient information has been kept in books. These greatancient inventions made tremendous contributions to theworld civilizationooking forward to your replyLi hu

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