2021-2022英语周报高三OJS答案

15.(18分)(1)干燥管碱石灰(每空2分,共4分)(2)2NH4CI Ca(OH)2=CaCl2 2NH3 2H20(2分)(3)平衡压强,使分液漏斗中的液体顺利流出(2分)(4)NH4SCN KOH=KSCN NH31 H2O(2分)(5)2NH3 Cr2O12- 8H=2Cr3 N2 TH2O(2分)(6)蒸发浓缩冷却结晶(每空1分,共2分)(7)①溶液红色褪去,且30s不变色②72.75%(每空2分,共4分)

B【语篇类型】记叙文【主題语境】人与自我——助人经历【文章大意】本文讲述了作者在芝加哥偶遢一个无家可归的人并施以援手的故事。【核心素养】语篇以作者帮助一个无家可归的人为背景,展示了人蚀的闪光点和生活中的真善美,助力考生树立正确的价值观,体现了文化意识这一核心素养。熟词新义》1. shower常用义:n.淋浴文章义:t.大量给予He showered her with gifts.他送给她许多礼物。2. finance常用义:n.资金;财政,金融,财务文章义:以,为……提供资金The concerts are financed by the Arts Council.音乐会由艺术协会出资举办词汇积累》 flash back( to sth.)回忆,回想,回顾;(尤指电影、书等)闪回,倒叙Her thoughts flashed back to their wedding day.她回忆起他们婚礼那一天的情景难句分析》 only had a few dollars left in my wallet., but I went tobut连接两个并列句him direetly, bent down and handed them to this fellow, talking withhim,touching his hand and wishing him well before I left现在分词短语作伴隨状语before引导时间状语从句译文:我的钱包里只剩下几美元了,但在我离开前,我径直走到他面前,弯下腰,把钱递给他,并和他交谈,抚摸他的手,祝他一切24.D【关键能力】考查理解具体信息的能力。【解题思路】根据第二段的" u man sitting on the sidewalk.,Mymind flashed back and I realized I had seen a homeless person oncebefore:Me"可知,作者在外出散步时看到了一个无家可归的人,这使他想起了自己无家可归的经历。25c【关键能力】考查推理判断的能力。【解题思路】根据第三段的" the home I grew up in caught fire inthe middle of the night. I can still remember the fire destroyedeverything we owned""our small town community.. helped us toent a temporary house"可知,作者的家遭遇火灾,大火烧毁了他们的一切,使他们无家可归。第二段的" I had seen a homeless persononce before;Me"也是提示26.D【关键能力】考查理解具体信息的能力。【解题思路】根据第四段的" I only had a few dollars left in mywallet, but I went to him directly, bent down and handed them to thisfellow, talking with him, touching his hand and wishing him wellhefore I le"可知,作者把身上仅有的几美元都给了那个无家可归的人,且和他交谈,安慰了他27.A【关键能力】考查推理判断的能力。【解题思路】根据最后一段的内容可知,作者一直并且将继续帮助他人,作者认为即使自己所能做的非常有限,但只要人人付出点,世界就会变得更好。结合上文中的” Thankfully, our small towncommunity showered us with love and care""I could remember feelingloved even after losing so much"可推知,作者感恩于自己得到的爱与关怀,也希望将其传递下去,故选A项关爱使世界更美好”。B项人之初,性本善";C项"不尝试,不知晓":D项"凡事要背等待"。

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