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3、辽宁省[名校联盟]2025年高三8月联考历史试题


According to new health guidelines, even a minute or two of physical exercise is better than nothing: just walking upstairs and down again, makes for healthier life than if you hadn’t done. The previous recommendation was for at least 10 minutes, but for years, the general direction of research has been toward the conclusion that there is no limit at all. This doesn’t just go for exercise, either. Five minutes in nature can also improve your health. If you are wondering whether or not some tiny but healthful activity is worth it, the answer, almost always, is yes.
It’s a little strange, actually, that this is even a topic of debate. Of course anything is better than nothing. For one thing, it’s a good start for building habits. For another, tiny actions are valuable in themselves. Human bodies aren’t digital equipment, and health generally isn’t a matter of reaching fixed thresholds. What is good for the bodies in large amount is usually good in smaller one, too.
The real reason for the debate is that information is dangerous. When public bodies recommend, say, a 10-minute minimum (最小值), it’s because they worry that if they don’t, people who might otherwise have exercised for 10 minutes will stop after two.
Ideally, we would stop thinking about healthy behaviors in terms of minimums. You should be doing as much exercise as you can, not as little as you can get away with. Remember that nothing is too minor to be not worth the bother. This is a sensible way to much of life, I would say, from being a good friend or paying attention to your kids, to saving money or reducing your environmental impact. However much you do, it will never be enough. But that is not a reason to do nothing — on the contrary, it’s a reason to do something.
12. What was the previous exercise recommendation
A. Two minutes daily. B. Ten minutes minimum.
C. Five minutes minimum. D. No fixed requirement.


“We really don’t know how we can thank you all. This has lifted a big 32 from our family, and we can ask the doctors to 33 Michael as early as possible!” she added. “We have stopped actively fundraising (募捐) 34 we have reached our target. Any additional donations after all of Michael’s cost have been 35 will be donated to another family in a similar situation.”
21．A．Frequently B．Occasionally C．Fortunately D．Slightly
22．A．struck B．stressed C．supported D．survived
23．A．moment B．word C．gift D．donation
24．A．speech B．picture C．article D．advertisement
25．A．construction B．match C．deal D．treatment
26．A．honest B．independent C．cautious D．active


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1、辽宁省[名校联盟]2025年高三8月联考数学试题


11.(2025·福州期末)我国多条高压直流电线路的瓷绝缘子出现铁帽腐蚀现象，在铁帽上加锌环能有效防止铁帽的腐蚀，防护原理如图所示。下列说法错误的是 (　　)
A.通电时，锌环是阳极，发生氧化反应
B.通电时，阴极上的电极反应为2H2O+2e-==H2↑+2OH-
C.断电时，锌环上的电极反应为Zn-2e-==Zn2+
D.断电时，则不能防止铁帽被腐蚀
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答案解析部分
1．【答案】A
【知识点】物理变化、化学变化的特点及其判别
【解析】【解答】A、光合作用，有氧气等新物质生成，属于化学变化；
B、冰雪融化，只是状态发生了改变，无新物质生成，属于物理变化；
C、海水蒸发，只是水的状态发生了改变，无新物质生成，属于物理变化；
D、溪水流淌，无新物质生成，属于物理变化。


3、辽宁省[名校联盟]2025年高三8月联考化学答案