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1、[衡水金卷]陕西省2025-2026学年第一学期高二期中联考生物试题


C．Humorous.
D．Demanding.
9．（2025?聊城一模） My three boys were infatuated （迷恋） with building blocks as children，and my husband would play with them，teaching the concept of a"stable base".But I was the one alone with the kids day after day，enduring soul﹣crushing afternoons on the floor of the playroom.I remember when the boys were about 3，7 and 8，feeling like it was an eternity until my husband would get home，and I was thinking："Lego again？Didn't we just do this yesterday？"Those hours seemed to go on forever.
Of the three，my middle child，Aaron，was the one I couldn't always understand.We moved from Ohio to the Bay Area.He'd always been change﹣averse.He was unhappy，wailing for days like King Lear in the storm："Why is everything different？"
So how did Aaron find his balance？Aaron continued building with Lego even as his peers outgrew it.In middle school，he found an online group of enthusiasts who shared designs.By high school，he had discovered the"adult fans of Lego"community.During college，he started accepting commission （委托） work.After graduating，he continued with larger and better﹣paying commissions，cobbling（拼凑） together a burgeoning career.A few years after he graduated，he was hired by Lego.He and his wife now live in Billund，Denmark.
Last fall，when Aaron and I went to the Lego store at Rockefeller Center，I felt like I got a glimpse into the center of his soul.We saw sets he'd designed，and he told me about fellow designers.I realize the concept of the"stable base"that my husband taught him all those years ago has become a metaphor for Aaron's life：Lego is where he feels the most calm，happy and competent.He needs things to make sense in the way Lego makes sense.
The time has gone too fast.I have a new and profound connection to Aaron.When I dump out a bag of the little plastic bricks and start sorting through them，just the mere sound brings me back，to remember and to feel the essence of my son，however far away he might be.


85．根据“Don’t worry about making mistakes. You can learn English better by correcting mistakes!”可知，学习语言不需要担心犯错误，因为可以从错误中学习。故答案为No, because people can learn English better by correcting mistakes.
86．powerful 87．heart 88．ten/10 89．importance 90．uneasy
【导语】本文主要介绍了存在于英语世界的每一个角落的一个词“The”的用法。
86．根据“And yet this simple and common word could be one of the most powerful words in the English language.”可知，“The”简单而常见，但在英语中却很有影响力。此处填形容词powerful，在句中作表语。故填powerful。
87．根据““The” also lies at the heart of English grammar, having a function (作用) rather than a meaning.”可知，“The”是英语语法的核心。结合表中所给句子结构，故填heart。
88．根据““The” tops the leading tables of most frequently (频繁地) used words in English, accounting for 5% of every 100 words used.”可知，每100个单词中“the”占5%，所以200个单词中应该有10个“the”。故填ten/10。
89．根据“The meaning of “the” expresses something important.”可知，“The”此处表达了一些重要的东西。结合所给表中句子结构，此处the后使用名词importance“重要性”。故填importance。


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【解析】（1）明矾水解生成氢氧化铝胶体，具有吸附性，反应的离子方程式为Al3++3H2O Al(OH)3(胶体)+3H+；FeCl3溶液在加热时水解生成Fe(OH)3，生成的HCl易挥发，水解彻底，最终生成Fe(OH)3，在加强热时，Fe(OH)3不稳定，分解生成Fe2O3。（2）泡沫灭火器灭火的原理为硫酸铝和碳酸氢钠发生互促水解生成二氧化碳气体，反应的离子方程式为Al3++3HCO3-═3CO2↑+Al(OH)3↓。（3）纯碱水解显碱性，能使油脂水解从而去油污，即纯碱能去油污的原因是其水解显碱性，用离子方程式表示为CO+H2O HCO+OH-。（4）铁离子水解生成氢离子，碳酸镁和氢离子反应生成二氧化碳，从而促进铁离子水解生成氢氧化铁沉淀而除去。

D．标准状况下，含4 mol HCl的浓盐酸与足量MnO2加热反应可生成22.4 L氯气
【答案】C
【解析】由n=c×V，该溶液中缺少体积数据，无法计算粒子数目，不符合题意；由2Fe+ 3Cl2==2FeCl3每生成2 mol产物转移6 mol电子，则生成0.5 mol 产物，则转移1.5 mol电子，即1.5 NA电子，不符合题意；一个D2O中含有的质子数为（1×2+8=）10个，18 g D2O的物质的量=18 g/20 g/mol=0.9 mol,含有质子为9 mol，即 9NA，符合题意；MnO2必须与浓盐酸反应才可生成氯气，随着反应进行，盐酸浓度降低到一定的程度后，将停止反应，即4 mol HCl并未完全反应，所以，生成的氯气应少于22.4 L，不符合题意。
11．m g HCl气体溶于水形成 V mL 溶液，密度为 d g cm-3，质量分数为 w %，物质的量浓度为 c mol L-1。下列表达式正确的是（ ）。
A．n(HCl)= mol B．c=
C．w= D．V=
【答案】B


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