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    1、2024–2024衡水金卷答案生物
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2、[衡水金卷]广东省2024-2025学年高一4月联考生物试题


D. Kenyan Teen’s Chinese Bridge Win Fuels National Learning Passion.
C
It is widely recognized that the human brain, particularly brain cells, functions as the central storage site responsible for storing memories. Nevertheless, a team of scientists has discovered that cells in other parts of the body can also exhibit memory capabilities. This discovery provides a new perspective for further investigation of memory mechanisms.
Nikolay V. Kukushkin from New York University, the lead author of the study in Nature Communications, explains, “Learning and memory are usually linked only to brains and brain cells, but our study reveals that other body cells can learn and form memories too.”
The research aimed to explore whether non-brain cells assist memory by using the “massed-spaced effect”—a learning principle where information is remembered more effectively through spaced-interval study periods compared to trying to learn everything in one long, exhausting session, better known as cramming(考前突击) for a test.
Scientists studied two types of non-brain human cells in a lab. They exposed these cells to different chemical signal patterns, similar to how brain cells receive neurotransmitter patterns(神经递质模式) during learning. In response, the non-brain cells activated a “memory gene”—identical to that of the brain cells when detecting patterns and restructuring connections for memories.
To monitor the process, the scientists engineered the non-brain cells to produce a glowing protein, which showed when the memory gene was on or off. The results showed that these cells could distinguish repeated chemical pulses (imitating brain neurotransmitter bursts) from simply continuous ones. When the pulses were spaced out, the “memory gene” was turned on more strongly and for longer.


31．has a good time
【解析】句意：她在学校过得很高兴。本题考查动词短语和动词的形式。过得高兴have a good time，句子可以是一般现在时，主语是she，谓语动词have用第三人称单数has，故答案为has a good time
32．puts on
【解析】句意：南希穿上了新衣服。本题考查动词短语和动词的形式。句子可为一般现在时态，主语是第三人称单数Nancy，谓语动词要用第三人称单数形式，put on穿上，put的第三人称单数为puts，故答案为puts on。
33．have to take them off
【解析】句意：我的鞋子脏了。我不得不脱下它们。本题考查动词短语、动词的形式、宾格人称代词和人称代词在短语中的位置。不得不have to，脱下take off，它们they。句子是一般现在时，主语是I，谓语动词用原形；have to后接动词原形。take off后接人称代词的宾格，they的宾格是them。人称代词宾格位于动词短语take off的中间，故答案为have to take them off。
34．try it on


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3、[衡水金卷]广东省2024-2025学年高一4月联考历史答案


1、[衡水金卷]广东省2024-2025学年高一4月联考化学答案


6、[衡水金卷]广东省2024-2025学年高一4月联考 试题


4、[衡水金卷]广东省2024-2025学年高一4月联考化学答案


4.分类是学习化学的一种重要科学方法。下列物质属于氧化物的是()
A.牛奶
B,液氢
C.氯酸钾
D.千冰
5.下列实验现象描述正确的是(
第1页共了页


解析　（1）化学键键能越大，断开化学键所要吸收的能量越大，该化合物稳定性越高，由表中数据可得CCl4的稳定性弱于CF4。原子半径越小，形成的共价键键能越大，卤族元素F、Cl、Br、I原子半径依次增大，Br的半径介于Cl与I之间，则C—Br键键能也介于C—Cl键和C—I键之间。（2）反应物断裂化学键吸收能量，生成物形成化学键放出能量，可得ΔH=∑E键（反应物）-∑E键（生成物）=436 kJ·mol-1+243 kJ·mol-1-2×432 kJ·mol-1=-185 kJ·mol-1；该反应为放热反应。
13.Ⅰ.（1）共价　（2）Si3N4
（3）3SiCl4+2N2+6H2Si3N4+12HCl
Ⅱ.4　4　
解析　Ⅰ.（2）氮化硅的晶体结构中，原子间都以单键相连，且N原子和N原子， Si原子和Si原子不直接相连，同时每个原子都满足8电子稳定结构，因此氮化硅的化学式为Si3N4。
Ⅱ.立方氮化硼的结构与金刚石相似，硬度与金刚石相当，在金刚石的一个晶胞中含有C原子的个数：8×+6×+4=8，则在立方氮化硼晶胞中含有4个氮原子、4个硼原子；由于晶胞边长为361.5 pm，所以立方氮化硼的密度是ρ== g·cm-3。
14.（1）8　6　　2NA　（2）①Si

3、[衡水金卷]广东省2024-2025学年高一4月联考化学答案