高三2025年普通高等学校招生全国统一考试模拟检测试题(二)2数学试题于2025-03-09发布，目前免费查试卷答案网站已经汇总了高三2025年普通高等学校招生全国统一考试模拟检测试题(二)2数学试题的各科答案和试卷，更多试卷答案请关注免费查试卷答案网站。

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本文从以下几个角度介绍。

    1、高三2025年普通高等学校招生全国统一考试模拟检测试题(二)2数学试题


    5、高三2025年普通高等学校招生全国统一考试模拟检测试题(二)2数学试题


    ①Have you ever thought about how babies learn to speak A recent study led by David, a researcher from Florida Atlantic University, found that babies learn to speak not only by listening to sounds but also by watching people’s lips (嘴唇) move. This happens as babies start making clear words like “mama” or “dada” for the first time. They need to learn how to move their lips to make the sounds they hear.
    ②According to the previous (之前的) research, babies learn to connect sounds with mouth movements fast. When they turn one year old, they look at your eyes more. This means that talking to babies eye-to-eye is better for their language skills than just letting them watch DVDs.
    ③But David went a step further. He and his student Hansen tested nearly 180 babies, groups of them aged 4, 6, 8, 10 and 12 months. They tried to find out how these babies reacted to the sound of their mother language and another language.
    ④They showed videos of a woman speaking in English to babies of English speakers. They found that when the speaker used English, the 4-month-old babies gazed (凝视) mostly into her eyes. The 6-month-old babies spent the same amounts (数量) of time looking at both the eyes and the mouth. However, when babies reached 8 to 10 months old, they focused more on the mouth instead of the eyes. At 12 months, the babies started looking back at the eyes, like what they did at 4 months.
    ⑤What happened when these babies who are used to English heard French The 12-month-old babies studied the mouth longer, just like younger babies. By focusing on the mouth movement, they tried to collect more information to understand the strange sounds.
    ⑥“The results of the research show babies watch mouths to learn their first language and look at eyes by 12 months old. They watch mouths longer when they hear a new language.” says Duke University scientist Greg. He adds excitedly, “I have never thought babies would learn language like this. The results of the research are blowing my mind. So I want to learn more about it. Learning how babies learn is important to unlock the secrets of human development.”
    57．What can we learn from Paragraph 1


    扫描全能王创建

    5、高三2025年普通高等学校招生全国统一 模拟检测试题(二)2数学试题


    2、高三2025年普通高等学校招生全国统一考试模拟检测试题(二)2数学试题


    4、高三2025年普通高等学校招生全国统一考试模拟检测试题(二)2数学试题


    5、高三2025年普通高等学校招生全国统一考试模拟检测试题(二)2数学试题


    1、高三2025年普通高等学校招生全国统一考试模拟检测试题(二)2数学试题


    5、高三2025年普通高等学校招生全国统一考试模拟检测试题(二)2数学试题


    C．NaNO2是还原剂 D．药品美蓝被还原
    (2)电子工业常用30%的FeCl3溶液腐蚀敷在绝缘板上的铜箔来制造印刷电路板。写出FeCl3溶液与铜发生反应的离子方程式：_________________________________________________。
    Ⅱ.高铁酸钾(K2FeO4)是一种新型、高效、多功能绿色水处理剂，比Cl2、O2、ClO2、KMnO4氧化性更强，无二次污染，工业上是先制得高铁酸钠，然后在低温下，向高铁酸钠溶液中加入KOH至饱和，使高铁酸钾析出。
    (3)干法制备高铁酸钠的主要反应为2FeSO4＋6Na2O2===2Na2FeO4＋2Na2O＋2Na2SO4＋O2↑，该反应中Na2O2是________(填“氧化剂”“还原剂”或“氧化剂和还原剂”)。
    (4)湿法制备高铁酸钾的反应体系中有六种微粒：Fe(OH)3、ClO－、OH－、FeO、Cl－、H2O。
    ①碱性条件下，氧化剂和还原剂的物质的量之比为3∶2发生反应，写出并配平湿法制高铁酸钾的离子方程式：____________________________________________________________。
    ②若反应过程中转移了0.3 mol电子，则还原产物的物质的量为________ mol。


    该现象的原因 。
    35. 实验室常用的制取气体的发生装置如图一：
    图一 图二
    （1）写出 a、b仪器的名称 、 。
    （2）用氯酸钾和二氧化锰制取氧气，应选择的发生装置是 （填字母），反应的化学方程
    式是 ，二氧化锰的作用是 。装置 A和装置 C都可制备氧气，其中能得到平稳气流
    的是 （填字母）。


    3、高三2025年普通高等学校招生全国统一考试模拟检测答案(二)2数学答案