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试题答案

本文从以下几个角度介绍。

    1、2024丹东高三二模数学
    2、2024-2024丹东市高三期初质量检测
    3、丹东2024高三期初考试
    4、辽宁省丹东市2024下高三期初质量检测数学
    5、2024丹东市高三年级阶段测试
    6、2024丹东市高三一模数学
    7、2024丹东高三质量检测
    8、2024丹东高三期初质量检测
    9、丹东市高三质量检测2024
    10、丹东市高三质量检测二2024

6、丹东市2026届高三总复习质量测试(一)数学试题


3、丹东市2026届高三总复习质量测试(一)数学试题


阅读下面短文，从每题所给的A、B、C、D四个选项中选出最佳选项。
More and more parents ask their kids to play sports every day. They ___31___ worry about their kids' health and want to know more ways to help kids keep healthy.
Being healthy means that a person eats well, gets enough ___32___. If you' re ___33___, your body works well, feels good, and you can do all of the things you want to do. Here are some 34 you should follow to keep healthy.
Eat all kinds of food. You may have your favourite food, ___35___ the best way is to eat all kinds of food. Try to ___36___ at least five kinds of fruit and vegetables a day.
Limit(限制) screen time. What's screen time It's the time you spend watching TV, playing
computer games or __37____ a smart phone. These sitting-down activities are ___38___ bad for your health. Try to spend no more than two hours a day on screens.
Be active(活跃的) . You need to find out what activities you ___39___ as a kid. Not everyone likes baseball or soccer. Maybe your favourite is swimming or dancing. You might ___40___ a list of fun things to do, so you can do them when your mom says it's time to stop playing computer games!


A. She’s my mother. B. He’s my father. C. It’s a cat.
（ ）4. I’m helpful ________ home.
A. at B. in C. on
（ ）5. —What can you do
A. I can swim. B. I’m fine. C. I like apples.
（ ）6. My mother is a ________. She teaches English.
A. farmer B. teacher C. doctor


1、丹东市2026届高三总复习质量测试(一)数学答案


1、丹东市2026届高三总复习质量测试(一)数学答案


1、丹东市2026届高三总复习质量测试(一)数学答案


6、丹东市2026届高三总复习质量测试(一)数学答案


6、丹东市2026届高三总复习质量测试(一)数学试题


1、丹东市2026届高三总复习质量测试(一)数学答案


＋2H2O
除去Cl2中的HCl气体
Ⅱ. Cl2的性质
(2) 将氯水滴在蓝色石蕊试纸上，试纸先变红后褪色，说明氯水具有_______________(填性质)。
(3) 比较氯、溴、碘单质的氧化性强弱。打开K2，关闭K1，向装置C中缓缓通入少量氯气时，反应的离子方程式为__________________________；当装置C中溶液刚变为橙黄色时，先关闭分液漏斗旋塞，再___________________ (写出开关操作)。用玻璃棒蘸取少量装置C中溶液滴在淀粉碘化钾试纸上，观察到的现象是__________；说明氯、溴、碘单质的氧化性由强到弱的顺序为_______________。
酸性和漂白性
Cl2＋2Br－===Br2＋2Cl－


17. 为测定空气中氧气的含量，某同学将图1教材实验进行改进，改进后的实验装置如图2所示（部分夹持装置已忽略），实验时引燃红磷后便熄灭酒精灯。
（1）引燃红磷后发生反应的文字表达式________。
（2）图1实验结束后测得实验结果偏大，你认为可能原因是________（写一点即可）。
（3）用图2装置进行实验，实验前打开弹簧夹，然后点燃酒精灯给红磷加热，实验数据如表所示，请计算空气中氧气的含量（写出计算过程）。
试管中空气的体积 反应前注射器中空气的体积 反应后注射器中气体的体积
50 mL 20 mL 6 mL
【答案】（1）


3、丹东市2026届高三总复习质量测试(一)数学答案