2025年9月邵阳市高一拔尖创新班联考数学试题

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1、拔尖考试邵东一中2019
2、邵阳市2024年新型试卷数学
3、邵阳市2024年高三第一次模拟测试卷数学
4、2024邵阳市高三联考试题数学
5、邵阳市2024年高一第一次联考
6、2024年邵阳市高一联考
7、2024邵东拔尖考试题目
8、邵东市创新2024年高考
9、2024邵阳市高一第二次联考
10、2024年邵东一中拔尖考试题目数学

4、2025年9月邵阳市高一拔尖创新班联考数学试题

5、2025年9月邵阳市高一拔尖创新班联考数学试题

B
When I got my first research project to work, I was so excited. Seeing research in action was enjoyable. My excitement, though, was soon cut short when my professor asked me to write a research paper on the project. My body tensed. Writing was the last thing I wanted to do; it's one reason why I pursued science in the first place.
I had hated writing since I was a little boy. But I couldn't avoid it: writing classes were required in high school.For hours, I stared at blank pages, trying to turn my disorganised thoughts into fluent sentences. My teachers would return my papers littered with red, showing my paragraphs were out of order. I was frustrated to no end. How couldI know what was good if there was no objectively right answer Maybe I wasn't cut out for writing.
I studied engineering in college. A few years later, I joined a research lab. The professor assigned me an initial
project to improve the efficiency of an inductor(电路感应器). I spent weeks setting up a test for a new design.When I got the results, though, the numbers weren't good. I kept trying new designs, using the results to brainstorm ideas with a team of researchers. Finally, after dozens of designs, we had one that could work. I was overjoyed until my professor told me to write that research paper.
In panic, I asked a graduate student in my lab for help. I carefully wrote an outline. But when I asked him for feedback, I soon found the paper full of red marks. Before I could quit in defeat, though, the graduate student explained, “Red doesn't mean you' re a bad writer. Writing isn't a one-and-done thing. It requires revising your work,often several times.” Suddenly it occurred to me, “Hadn't I done the same thing when I was designing my research project "I kept improving my outline, eventually turning it into sentences and paragraphs, guided by feedback from others. Finally, I made it, and surprisingly, I was having fun.
From then on, writing became one of my favourite parts of research, and it still is today. It's a future I never could have imagined during my early struggles with writing classes. But I came around.

B.February.
C.Spring.
()2.
your desk clean.
(
)4.A.I usually go fishing
B.I am playing basketball

1、2025年9月邵阳市高一拔尖创新班联考数学试题

3、2025年9月邵阳市高一拔尖创新班联考数学试题

2、2025年9月邵阳市高一拔尖创新班联考数学试题

4、2025年9月邵阳市高一拔尖创新班联考数学试题

4、2025年9月邵阳市高一拔尖创新班联考数学试题

1、2025年9月邵阳市高一拔尖创新班联考数学试题

解析：A.月球表面的铁元素以铁单质和亚铁离子的形式存在，FeO中Fe元素化合价为＋2价，FeO可能反应生成Fe和Fe3O4，Fe3O4中含有三价铁，A符合题意；B.Fe3O4分解生成Fe2O3和FeO，虽然Fe2O3中含有三价铁，但是四氧化三铁中含有较多三价铁，无法体现月球表面的铁元素主要以铁单质和亚铁离子的形式存在，B不符合题意；C.月球表面没有氧气，FeO无法被氧化生成Fe2O3，C不符合题意；D.月球表面铁元素主要以铁单质和亚铁离子的形式存在，Fe2O3中Fe元素的化合价为＋3价，D不符合题意。
2．下列有关铁的化学反应的叙述正确的是（　C　）
A．室温下，过量Fe与浓硝酸反应生成Fe（NO3）2
B．加热时，过量Fe与氯气反应生成FeCl2
C．高温下，铁与水蒸气反应生成Fe3O4
D．高温下，铁粉与氧化铝粉末反应生成单质铝
解析：室温下，Fe在浓硝酸中钝化，无法持续反应，A错误；氯气的氧化性较强，无论Fe是否过量，与氯气在加热条件下反应都只生成FeCl3，B错误；高温下，Fe与水蒸气反应生成Fe3O4和H2，C正确；Fe的活泼性不如Al，不能从氧化铝中置换出Al单质，D错误。

【详解】A．同周期从左向右电负性逐渐增大，同主族从上向下电负性逐渐减小，故元素电
负性 O>S>P，即 X>Z>Y，A项正确；
5 1 2 1 2
B．该物质中，P原子的价层电子对数为 4 4，为 sp3杂化，S原子的价层电
2
2 6 1 1子对数为 4，为 sp3杂化，B项正确；
2

3、2025年9月邵阳市高一拔尖创新班联考数学答案