2023届柳州高中/南宁二中高三(九月)联考英语试题

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2023届柳州高中/南宁二中高三(九月)联考英语试卷答案，以下是该试卷的部分内容或者是答案亦或者啥也没有

One possible version: She put her violin under her chin, but she couldn’t remember even her first note. With a flushof sadness, she couldn’t hold back her tear s welling up in her e yes. She shut her e yes, hoping toblink the tears away. When she opened them again, everything seemed misty. To her surprise, itlooked as if all the people in the hall had changed into her doll animals, and she even saw hersmiling Zoey the Zebra standing at the back. It was almost like being at home with her lovelyfriends. More relaxed, she picked up her confidence and remembered her piece. As she pla ved, the“animals”audience seemed to be changing back into people. But Emilywas no longer nervous because all the audience looked friendly now.She also found her parentssmiling eyes focused on her, telling her“you’re always the best”.The audience lost themselves inher music.Finally, she played the last note, put her violin under her arm and took a big bow.Themusic lingered in the air after the performance, while the entire audience broke into loud applause.She made it! She had played her first solo! 给分板:0-1-2-3-4-5—6-7–8—9-10-11-12-13-14-15-16-17-18-19-20一-21-22-23-24-25

49.B 考查名词辨析。根据本文主题和下文“…which is the weakness…”可知, 虽然大多数人都有几个弱点,但重要的是要找出你的“一个大挑战”。故选B项。

6.〈每空2分,共1)平衡气压,使液体顺利滴下〈或其他合理答案2)三颈烧瓶3)持续通入氮4> FeCO3 2HNCHCOOH-CHNCHCOOhFe+ COT+ H2O5)降低甘氨酸亚铁的溶解度,促使其结或其他合理答案6)偏压滴液漏斗〈仪器的导管将漏斗上方和三颈烧瓶连通,可以平衡压强液体顺利滴下器b为三颈烧瓶3)持续往装置氮气,可将装置内的空气排出,并且N2气流通过反应液时,能起搅拌的作用,除去反应液中溶解的氧气,防止亚铁离子被氧气氧化4)FeCO3和HNCH2COOH反应的化学方程式为FeCO+2H2 NCHCOOH(H-NCHCOO)hFe +CO T+H2O5)甘氨酸亚铁易溶于水,难溶于乙醇,步骤加入无水乙醇,降低甘氨酸亚铁在反丿的溶解度,促使其结晶析6)甘氨酸根中含有氨基,可以被酸性高锰酸钾溶液氧化消耗高锰酸钾溶液的体积偏大故所得结果比实际值偏大7)三次滴定第二次操作消耗标准液数值明显偏大,应舍去,取第一次和第三次平均值(1945mL+1955mL)2=1950mL,由:Ce4+Fe2+=Ce3+Fe2500mL溶液中n(Fe2+)(Cc4+)=0.10000lL×1950×103=1950×10-3mol,故250m含有n(Fe2)250mL950×103mol×25mL=1950×102mol,故乳酸亚铁晶体的质量分数为1950×102molxx100%=9945%400