郑州市2026年高中毕业年级第二次质量预测(4月)政治试题

郑州市2026年高中毕业年级第二次质量预测(4月)政治试题于2026-04-20发布，目前已经汇总了郑州市2026年高中毕业年级第二次质量预测(4月)政治试题的各科答案和试卷，更多试卷答案请关注本网站。

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郑州市2026年高中毕业年级第二次质量预测(4月)政治试题

郑州市2026年高中毕业年级第二次质量预测(4月)生物试题

短文1
Rules are everywhere in our life, and they help keep order. When we are in school, we must ______ (obey) school rules. For example, we should not be late for class or ______ (break) things in the classroom. Teachers are strict with us because they want us to learn good habits.
In sports, following rules is also important. Athletes must ______ (compete) fairly. The ______ (referee) makes sure that no one ______ (break) the rules. If an athlete ______ (do) something wrong, he or she may ______ (punish) or even ______ (forbid) from the game.
In public places, like libraries or parks, we should also follow rules. We should not speak loudly or litter. It's our ______ (responsible) to keep these places clean and quiet.
Remember, rules are made to ______ (follow), not to break. When everyone plays by the rules, life becomes better for ______ (everyone).
短文2
Last week, our school held a sports meet. Before it started, the teacher ______ (explain) the rules to all students. She said that ______ (obey) the rules was important for both safety and fairness.

3、郑州市2026年高中毕业年级第二次质量预测(4月)化学试题

4、郑州市2026年高中毕业年级第二次质量预测(4月)政治试题

5、郑州市2026年高中毕业年级第二次质量预测(4月)地理试题

1、郑州市2026年高中毕业年级第二次质量预测(4月)政治试题

3、郑州市2026年高中毕业年级第二次质量预测(4月)数学试题

故选：C；
（4）若第2次测量时电流表的示数如图乙所示，电流表选用小量程，分度值0.02A，其示数为0.2A；第二次实验电阻阻值为：
R2===10.0Ω，
则定值电阻R==≈9.9Ω。
故答案为：（1）见解答图；（2）右；（3）C；（4）0.2；9.9。
点评：本题“伏安法”测电阻的实验，考查了电路连接、注意事项、电路故障、电流表读数以及电阻的计算等知识。 测定值电阻的阻值时应该求平均值，因为定值电阻的阻值不变，求平均值可以减小误差。 【知识点2】伏安法测小灯泡的电阻 （1）实验原理：根据欧姆定律的导出式R=。
（2）实验器材：电源、开关、导线、滑动变阻器、被测小灯泡、电压表、电流表。

郑州市2026年高中毕业年级第二次质量预测(4月)化学答案