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4、吉林省2025-2026学年上学期高三9月期初考试数学试题


1、吉林省2025-2026学年上学期高三9月期初考试数学试题


B．how crystal is formed
C．whether is crystal formed
D．how is crystal formed
14．（2025 遂宁）—Could you please tell me ______？
—Certainly there is a modern library on Binjiang Road.You can find different kinds of books here.（　　）
A．how far the library is
B．what I can learn from books


阅读短文,从每小题所给的A、B、C、D四个选项中,选出可以填入空白处的最佳选项。
Long long ago, there was a swan with golden feathers. She lived in a 1 . A woman lived in a small house near the lake with her two 2 . They were very 3 . They worked hard all year round, but still, they lived a 4 life and sometimes they even didn’t have enough money to buy food.
The swan was 5 to see that. She said to herself. “I’ll 6 one of my feathers to them each day, then they can live a happy life with the money by selling my feathers.” That evening, she 7 to the poor woman’s house and left a golden feather on the table without saying anything. From then on, the swan came every day. The woman was very 8 because their life was much better than before.
But day after day, the woman became greedy (贪婪的). She said to her daughters. “The swan may 9 one day. If so, we will be poor again. We should take all her feathers when she comes next time.”
“Oh, no, Mom!” 10 the daughters, “She helps us a lot!” But the mother wouldn’t listen. When the swan came, the mother caught her and 11 all her feathers. But 12 , the golden feathers changed into chicken feathers.
Then, the golden swan said, “Poor Mother, I came to help you, but you wanted to 13 me. Now, I am leaving and will never 14 . Never be greedy!” With these words, the swan was gone.
Without the swan’s feathers, the family became poor again. Before she died, the mother told her daughters, “Remember: being greedy brings 15 . Be thankful for what you have.”


3、吉林省2025-2026学年上学期高三9月期初 数学试题


6、吉林省2025-2026学年上学期高三9月期初考试数学试题


5、吉林省2025-2026学年上学期高三9月期初考试数学试题


6、吉林省2025-2026学年上学期高三9月期初考试数学试题


4、吉林省2025-2026学年上学期高三9月期初考试数学试题


3、吉林省2025-2026学年上学期高三9月期初考试数学试题


(4) (5)


（2） ① 高锰酸钾加热生成锰酸钾、二氧化锰和氧气，其反应的化学方程式为： ；
② 高锰酸钾制取氧气，反应物是固体，反应条件是加热，所以选择的发生装置为A；
（3）实验室制取氧气收集到的氧气浓度偏低的错误操作有： 组装装置时，玻璃导管的长端与乳胶管相连，短的那端玻璃导管伸入集气瓶中，无法伸到底部，不能把集气瓶内的空气排尽，导致收集到氧气混有空气，浓度偏低。
故答案为：（1）酒精灯；（2）；A；
（3） 组装装置：玻璃导管的长端与乳胶管相连；收集操作：玻璃导管未伸入到集气瓶底部。 。
【分析】（1）根据常见化学仪器的名称进行分析解答；
（2）根据高锰酸钾加热生成锰酸钾、二氧化锰和氧气的化学方程式的书写，发生装置的选择依据进行分析解答；


3、吉林省2025-2026学年上学期高三9月期初考试数学答案