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本文从以下几个角度介绍。

    1、河北省2024高三联考数学
    2、21届河北省高三
    3、河北区2024-2024高三总质量检测二数学
    4、2024-2024河北省高三年级上学期10月联考数学
    5、河北区2024-2024高三总质量检测一数学
    6、2024河北高三
    7、21届河北省高三年级11月份联合考试数学
    8、2024-2024学年河北省高三上学期12月份考试数学
    9、2024年河北省高三质检
    10、2024新高考河北高三联考数学

1、河北省2026届高三年级一轮复习阶段性质量检测数学试题


5、河北省2026届高三年级一轮复习阶段性质量检测数学试题


74. What can’t you do in the library
A. Borrow magazines. B. Use the computers.
C. Keep quiet. D. Eat food.
75. Where can you read books in the library
A. In the reading room. B. In the computer room.
C. In the hall. D. In the classroom.
C


Many Chinese students think American students enjoy 25 freedom than them at school. But American schools also have their 26 . If the students break the rules, they will get punishment (惩罚), too. 27 the first day of a new term, 128 students of Morton High School were sent home for 28 the wrong clothes. There are altogether (总共) 1,200 students in the school. Usually only 20 students 29 the school dress rule every day. So the headmaster Theresa Mayerik said it was 30 worst new term she had ever seen.
At Morton High School, students’ favorite clothing such as baggy (宽大的) trousers, low-necked shirts and tank tops (紧身短背心) are not 31 in classrooms. Some students think they have the right to choose 32 to wear, but the headmaster doesn’t think so. “I’d be supportive (支持的) if half the school were sent home, because 99% will get the message that our school is for education.” “Freedom” does not 33 “free of restrictions (约束)”. That is to say there is no total freedom in the world, no 34 in the USA or in China.
根据语篇内容,从方框中选择恰当的单词,并用其正确形式填空。将单词填写在答题卡对应的横线上。每个单词只能用一次。
feel; wonderful; rule; in; if; sleep; careful; their; health; can
Visiting a zoo is always exciting. But you should remember to keep both animals and yourself safe. Here are some 35 for you to follow.
First, respect the animals. When visiting a zoo, remember that you are 36 the animals’ home. Do not try to feed or touch the animals. The animals have 37 own food. Feeding animals your food may be harmful to their 38 . What’s more, be quiet when they are resting or 39 .
Second, follow the signs and guidelines (准则). You 40 learn important information about the animals through these signs and guidelines. Read and follow these signs 41 .


3、河北省2026届高三年级一轮复习阶段性质量检测数学试题


2、河北省2026届高三年级一轮复习阶段性质量检测数学试题


1、河北省2026届高三年级一轮复习阶段性质量检测数学试题


5、河北省2026届高三年级一轮复习阶段性质量检测数学试题


1、河北省2026届高三年级一轮复习阶段性质量检测数学试题


3、河北省2026届高三年级一轮复习阶段性质量检测数学试题


【小问2详解】SO2在高温下与O2、CaCO3转变为CaCO3,反应为2CaCO3+2SO2+O22CaSO4+2CO2。答案为2CaCO3+2SO2+O22CaSO4+2CO2;
【小问3详解】NH3还原NO产生无污染的物质为N2和H2O,反应为4NH3+6NO 5N2+6H2O。答案为4NH3+6NO 5N2+6H2O;
【小问4详解】酸性条件下,NaClO溶液吸收烟气中SO2氧化为,反应为SO2+ClO +H2O == SO+Cl +2H+。该脱出过程在溶液中进行,可对比两者溶解度有差异、还原性差异、反应速率差异等。烟气中SO2和NO的体积比为4∶1,可设SO2和NO的物质的量分别为4mol、1mol。根据电子守恒SO2~ Cl-~ 该过程产生的n(Cl-)=4×100%mol=4mol;而2NO~3Cl- ~2计算得该过程产生的Cl-为1mol×1.5×80%=1.2mol,为0.8mol。所以和Cl 的物质的量之比为=0.8:(1.2+4)=2:13。答案为SO2+ClO +H2O == SO+Cl +2H+;O2在水中的溶解度大于NO;SO2在溶液中的还原性强于NO;SO2与NaClO溶液的反应速率大于NO;2∶13。第五章 化工生产中的重要非金属元素
第二节 氮及其化合物
第1课时 氮气与氮的固定 一氧化氮和二氧化氮
1. 下列过程中,没有发生化学变化的是( )。
A. 工业上用氮气和氢气合成氨


【详解】在化学反应中能改变其他物质的反应速率,而本身的质量和化学性质在化学反应前后没有发生变化的物质叫作催化剂。催化剂所起的作用称为催化作用,故填:能;没有。
14. 分离液态空气 高锰酸钾 过氧化氢
【详解】工业上一般采用分离液态空气的方法制取氧气;
实验室里,常采用高锰酸钾或过氧化氢分解等方法制取氧气;
高锰酸钾受热分解生成锰酸钾、二氧化锰和氧气,过氧化氢在二氧化锰的催化作用下生成水和氧气,反应文字表达式分别为、;
15. 生成黑色固体
【详解】铁和氧气反应产生四氧化三铁,该反应的符号表达式为:;


3、河北省2026届高三年级一轮复习阶段性质量检测数学答案