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    [点石联考]20252026学年度上学期高三9月份联合考试数学试题

1、[点石联考]2025-2026学年度上学期高三9月份联合考试数学试题


5、[点石联考]2025-2026学年度上学期高三9月份联合考试数学试题


The Spring Festival is a festival that is rich in traditions and customs. These traditions have been passed down from generation to generation, ______ (keep) the cultural heritage alive.
During the Mid - Autumn Festival, the mooncakes come in various flavors and shapes, each ______ (represent) a different meaning and wish.
The Dragon Boat Festival is a festival full of energy and enthusiasm. The dragon boat races are a test of strength and ______ (cooperate) among the team members.
The Lantern Festival is a time for people to enjoy the company of their family and friends. They walk around the streets, ______ (admire) the lanterns and sharing the joy of the festival.
The Double Ninth Festival is a festival that values the elderly. It's a time to express our gratitude and ______ (appreciate) for their wisdom and experience.
Christmas is a time for people to exchange gifts and express their love and care for each other. The gifts are not just objects but also a symbol of ______ (affect).
Holi is a festival that brings color and happiness to people's lives. The bright colors of the paint and fabrics ______ (symbol) the joy and energy of life.


27．Linda: You come to school so early. 　 　？
Jenny: I usually get up at 6:00 a.m.
28．Sally: It's Sunday tomorrow. 　 　
Linda: I often visit my grandparents on Sundays.
29．Linda: I like spring. 　 　
Tommy: I like summer best. Because I can go swimming.
30．Lucy: I want to join the singing contest. 　 　


2、[点石联考]2025-2026学年度上学期高三9月份联合 数学试题


3、[点石联考]2025-2026学年度上学期高三9月份联合考试数学试题


1、[点石联考]2025-2026学年度上学期高三9月份联合考试数学试题


5、[点石联考]2025-2026学年度上学期高三9月份联合考试数学试题


1、[点石联考]2025-2026学年度上学期高三9月份联合考试数学试题


2、[点石联考]2025-2026学年度上学期高三9月份联合考试数学试题


C. 打开盛有浓盐酸的试剂瓶的瓶盖，瓶口有白雾产生
D. 向 2mL 酸性硫酸铜溶液中滴加1~2滴稀氢氧化钠溶液，振荡后出现大量蓝色沉淀
7. 设计实验以达成相应的目的是重要的化学能力，下列实验方案设计不合理的是
选项 实验目的 实验方案
A 鉴别羊毛纤维和涤纶 取样、灼烧、闻气味
B 实验室制O2 向装有少量MnO2的锥形瓶中缓慢加入H2O2溶液
C 分离CaCl2和CaCO3 加水溶解、过滤、洗涤、干燥；蒸发、结晶


②倒置的漏斗不但能防止液体倒吸，还可以_______。
15. 自然界中金属资源有限且不可再生。为了达到回收金属资源的目的，某化学兴趣小组的同学欲从含有硫酸铝、硫酸铜的废液中回收金属铝和铜，回收流程如图所示。
（1）过程Ⅰ中加入铁粉而不是铁块，其目的是__________；过程Ⅰ中有关反应的化学方程式为_________。
（2）操作①和操作②的名称是________。
（3）过程Ⅱ中加入过量的稀硫酸的目的是________。
（4）回收金属对于保护金属资源意义重大，除此之外还要注意防止金属锈蚀。请写出一条防止铁生锈的措施_________。
16. 有学者提出“铁丝燃烧绕成螺旋状，是为了防止燃烧点因迅速上升到集气瓶内氧气低浓度区而熄灭”。据此，某化学兴趣小组的同学决定对铁丝在氧气中燃烧进行更深入的探究。


3、[点石联考]2025-2026学年度上学期高三9月份联合考试数学答案