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试题答案

本文从以下几个角度介绍。

    [青于蓝]2025届高考名师预测卷(一)1语文试题

1、[青于蓝]2025届高考名师预测卷(一)1数学试题


2、[青于蓝]2025届高考名师预测卷(一)1生物试题


E. Keep safe on buses.
（B）
请阅读下面短文，从每小题所给的A、B、C三个选项中，选出一个最佳选项。
John and Carl are good friends. They are playing baseball in a team. Today they have a baseball game. To everyone’s surprise, John and Carl almost get into a fight with each other.
John’s Feeling John really cares about the friendship between Carl and him. But he was angry with Carl. Carl bossed (对……指手画脚) him. And Carl took away his baseball bat during the game. Now John is in a conflict with Carl. Carl’s Feeling Carl’s feelings are different from John’s. Carl thinks he is better at baseball. He doesn’t believe John’s baseball skills. He really wants to help his friend win the game. He is proud (自豪的) of what he did. Carl doesn’t want to argue at all. Your Feeling Do you feel the way John feels Do you feel the way Carl feels Control Your Feelings John’s dad told John to always have self-control. “Remember, think before you act—especially (尤其) if you feel angry,” he said. Now, John needs to have self-control. Like Carl, he doesn’t want to argue. He decides to cool down. John’s angry feelings contrast (形成对照) with what he really wants to do.
39. Why was John angry with Carl
A. Because Carl’s feeling was different from his.


1、[青于蓝]2025届高考名师预测卷(一)1英语试题


4、[青于蓝]2025届高考名师预测卷(一)1生物学试题


6、[青于蓝]2025届高考名师预测卷(一)1生物试题


2、[青于蓝]2025届高考名师预测卷(一)1政治试题


1、[青于蓝]2025届高考名师预测卷(一)1语文试题


1、[青于蓝]2025届高考名师预测卷(一)1 试题


Ⅱ.(1) 3X(g)＋Y(g)2Z(g) (2)0.075mol L-1 min-1 0.040mol L-1 min-1
(3)等于 (4)21：17 (5)增大 增大 减小 (6)①②③④⑤⑥；①②③⑤。
18.(1)镁片 2H++2e-=H2 (2)铝片 2H2O+2e-=H2 +2OH- Al-3e-+4OH-=[Al(OH)4]-
(3)PbO2+2e-+4H++SO42-=PbSO4+2H2O (4)石墨棒上有红色固体析出 Fe-2e-=Fe2+ 2
(5)2：1 O2+4e-+2H2O=4OH- CH4-8e-+10OH-=CO32-+7H2O a b C2H5OH-12e-+16OH-=2CO32-+11H2O
(5)负极 a O2+4e-+2H2O=4OH-
19.①10.0 15.00 ②c>b>a 3、4


【实验探究】为了探究哪一种猜想成立，甲、乙、丙三位同学分别针对猜想一、猜想二、猜想三设计实验方案并展开实验探究。
猜想 主要操作 主要现象 实验结论
一 打磨R丝，并将其插入到硫酸铜溶液中 R丝表面覆盖了一层红色的物质 猜想一________(“成立”或“不成立”)
二 打磨粗细相同的R丝、铝丝、铜丝，分别将它们插入到体积相同、溶质质量分数也相同的稀硫酸中 ①R丝表面产生气泡缓慢，溶液由无色逐渐变成蓝色 ②铝丝表面产生气泡较快 ③铜丝表面没有气泡产生 猜想二成立
三 把铝丝插入RSO4溶液中 ________________ 猜想三成立
【交流反思】究竟哪种猜想成立？三位同学经讨论交流，发现丙同学在实验前没有打磨铝丝，这可能会导致实验结论错误。于是他们先打磨铝丝，再将其插入到RSO4溶液中，一段时间后，溶液的颜色由________色变为________色；进而确认猜想三不成立，猜想二成立。写出Al与稀硫酸反应的化学方程式：____________________________。
【归纳总结】探究结束后，他们总结得出：通过金属与酸反应或金属与盐溶液反应可以比较金属活动性强弱。


3、[青于蓝]2025届高考名师预测卷(一)1化学答案