【语篇导读】本文是夹叙夹议文告诉我们远亲不如近邻”的道理8.A【解析】细节理解题。根据第一段 Much moreprobably it is a close female friend calling to tell you thatshe has split up with her boyfriend again or perhaps sim-ply that a good movie has just started.onTv.可知最有可能来自一个朋友,故选A。9.C【解析】细节理解题。根据第三段 TV shows likethis tell us that our romantic relationships may not lastbut we need to keep in touch with our close friends if wewant to survive.可知 TV shows like Friends告诉我们亲密的朋友帮助我们面对生活中的困难。故选C。10.D【解析】推理判断题。根据最后一段 This is trueof Erika and Jane 's friendship. With Erikas family200 miles away, it is Jane who keeps a spare set of keysto Erika's apartment and waters her plants whenevershe is away.可知Bika和Jane在日常生活中互相信任和支持。故选D。解析】推理判断题。纵观全文,特别是最后一My friends have more to do with my life than, my par-ts and, therefore, I don't have to spend a lot of timeexplaining things to them. Friends are more up to dateith what is happening可知远亲不如近邻。故选A。

22.(12分(1)3S8+48OH24H2O+16s2-+8s03(2分)16(2)0.05(2分)2。(2分)(3)1mol(2分)(4)①Na2S2O5晶体在空气中易被氧化成Na2SO4(2分)022 NaHCO3 +2SO2=Na2 S2o5+2C0 2+H,O(2分)【解析】(1)S8与KOH溶液反应生成K2S、K2SO3和H2O离子方程式为3S8+480H=24H2016s2-+8SO3-。(2)标准状况下,2.24LH2S与224LO2的物质的最为0.1mo,H2S与O2反应先生成S单质S单质再与O2反应生成SO2,2H2S+O2(少量)2S↓+2H2O20.10.05点燃S+O2=sO 20.050.050.05生成S的物质的量为0.05mol;反应前气体为0.1molH2S和0.1molO2,总质量为6.6g,反应后气体为0.05 mol so2,质量为3.2g;容积恒定,容器中气体密度是原来的32=16633倍。(3)由方程式可知,生成2 mol mnO,转移10mol电子,若反应过程中转移5mol电子,生成MnO4的物质的量为1mol(4)①干燥时需要在还原性气体或惰性气体氛围下,其原因是Na2S2O3晶体在空气中易被氧化成Na2SO4。②反应釜中反应的化学方程式为2 NaHco3+2SO2Na2 S2O5+2CO2+H2O

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