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5、湘潭市2025-2026学年第一学期高二12月学情检测数学试题


2、湘潭市2025-2026学年第一学期高二12月学情检测数学试题


Writing:
Guided Writing for reference
Dear teachers and fellow students,
It's a great honor to stand here at the Forum of Teenage Digital Literacy. As members of Generation Z, we're born into a world where digital technology is as essential as air, but true literacy means both embracing its benefits and mastering its complexities.
Let me share a personal story. Last winter, our physics class tackled electromagnetism—a topic that left me confused despite re-reading the textbook five times. Then I stumbled upon an educational platform offering 3D animations: I watched electrons flow through circuits, adjusted variables in virtual experiments, and even joined a live Q&A with a physics tutor from another city. What felt like an insurmountable wall became a bridge; within a week, I not only passed the quiz but also helped three classmates grasp the concepts using the same tools. That's the magic of digital technology—it turns isolated struggles into collaborative growth.
Yet convenience comes with risks, which is why developing information discernment is vital. One crucial method I’ve learned is to prioritize authoritative sources when evaluating online information. Instead of trusting catchy headlines or viral posts at first glance, we should cross-check with official channels and credible institutions. Take last month’s incident in our class group: a post claiming "drastic college entrance exam reforms" spread rapidly, alarming many of us. Following this rule, I first checked the Ministry of Education’s official website—no such announcement existed. I then searched major news outlets and consulted our head teacher, only to find it was a three-year-old hoax. This process not only prevented me from spreading misinformation but also helped calm my classmates’ anxieties.
Digital literacy isn't just about coding or using apps—it's about balancing enthusiasm with caution. Let's ride the wave of technology, but keep our compass of critical thinking sharp. Together, we can navigate the digital world not just confidently, but responsibly.


1答题前，考生务必将姓名、准考证号填写在试卷和答题卡上。
(
)14.Whatis this
2.考生作答时，请在答题卡上作答（答题注意事项见答题卡），在本试卷上作答无效：
A.It's a cup.
B.It's a cap
C.It's a eraser.


1、湘潭市2025-2026学年第一学期高二12月学情检测数学答案


3、湘潭市2025-2026学年第一学期高二12月学情检测数学答案


1、湘潭市2025-2026学年第一学期高二12月学情检测数学答案


1、湘潭市2025-2026学年第一学期高二12月学情检测数学答案


5、湘潭市2025-2026学年第一学期高二12月学情检测数学试题


1、湘潭市2025-2026学年第一学期高二12月学情检测数学答案


用等量的氯化铵溶液润湿滤纸包，将一定量铁粉和活性炭粉混合均匀后黏附在滤纸包内表面，将滤纸包挂在橡胶塞上，同时在橡胶塞上打上孔径合适的圆孔，插入氧气传感器。
实验步骤：①在集气瓶上塞上带有上述装置和药品的橡胶塞；②将传感器连通电脑，开始采集数据；③更换药品，重复①②步骤，采集的数据如图4所示。
曲线a：5.0g铁粉+2.0g活性炭粉，质量分数为10%的氯化铵溶液
曲线b：5.0g铁粉+2.0g活性炭粉，质量分数为25%的氯化铵溶液
曲线c：6.0g铁粉+2.4g活性炭粉，质量分数为25%的氯化铵溶液
(4)比较曲线a与曲线b可得出的结论是 。
【改进实验3】


选项 实验操作和现象 结论
A 向BaCl2溶液中通入SO2和气体X，产生白色沉淀 X有强氧化性，白色沉淀一定为BaSO4
B 向丙烯醇(CH2=CHCH2OH)中加入酸性KMnO4溶液，KMnO4溶液褪色 验证丙烯醇中是否含碳碳双键
C 向Na2SO3溶液中先滴加酚酞，再滴加BaCl2溶液至过量，溶液红色变浅至消失 Na2SO3溶液 水解使溶液呈碱性
D 在2 mL 0.01 mol·L-1Na2S溶液中先滴入几滴0.01 mol·L-1CuSO4溶液有黑色沉淀生成，再滴入0.01 mol·L-1ZnSO4溶液，又有白色沉淀生成 Ksp(ZnS)7．科学需有严谨认真的精神，也常给人带来乐趣。下图是化学家合成的象形分子——牛烯醇，下列有关该分子的说法正确的是
A．含有两种官能团 B．含有手性碳原子


3、湘潭市2025-2026学年第一学期高二12月学情检测数学答案