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4、海南省2025-2026学年第一学期高三第三次月考地理试题


6、海南省2025-2026学年第一学期高三第三次月考化学试题


【答案】4. A 5. C 6. D 7. A
C
If the ball goes out of bounds in say, a soccer game, it’s up to the referees to call the violation(犯规). But in a high-level curling(冰壶) match, the stones are somewhat self-policing——thanks to the red and green lights atop each one.
As long as the curler releases the stone before the front of it crosses the first red line——the “hog line”, the lights will stay green, and play will continue. If you see the red lights come on, that means the curler keeps his/her hand on the handle too long, committing a hog line violation. The shot is disqualified, and the stone is quickly removed so it doesn’t disturb other stones on the curling sheet.
The detection system, called “Eye on the Hog”, dates back to the late 1990s, when University of Saskatchewan engineering professor Eric Salt suggested that some of his advanced electrical engineering students invent one for a class project: With his help, they did, and Canadian engineering company Startco improved their design and brought it to market. The Canadian Curling Association soon adopted it for official use, and its popularity grew from there.
Basically, there’s a magnetic strip(磁条) fixed beneath the ice slightly behind the hog line. Inside the stone is an electrical circuit(电路), whose current is affected when you’re touching the handle. If you’re still touching the handle when the stone crosses the in-ice magnet, it’ll set off the battery-operated red lights. Release the handle before the stone reaches the magnet and the green lights will flash until the stone gets there. At that moment, the flashing will switch to a steady green to indicate that the release is qualified.
This system also explains why the player releasing the stone doesn’t wear a glove on their delivery hand: They’re not allowed to, since gloves are banned access to the touch sensor.


Zoom 1.
goes shopping and 2.
on the weekend.Zip
likes football.Zoom 3.
plays football.
任务二：回答下列问题。
1.Why can't Zoom go hiking this weekend


1、海南省2025-2026学年第一学期高三第三次月考生物学试题


3、海南省2025-2026学年第一学期高三第三次月考政治试题


5、海南省2025-2026学年第一学期高三第三次月考政治试题


1、海南省2025-2026学年第一学期高三第三次月考生物试题


4、海南省2025-2026学年第一学期高三第三次月考生物学试题


1、海南省2025-2026学年第一学期高三第三次月考生物试题


C AgNO3溶液 　澄清溶液变浑浊 　Cl2与H2O反应产生Cl-
D 石蕊溶液 　石蕊溶液变红 　氯水呈酸性
4.[2024·天津耀华中学模拟] 验证氯气性质的微型实验装置如图所示。①是浓盐酸,⑥是高锰酸钾,②~⑤是滤纸条,依次滴有石蕊溶液、淀粉KI溶液、KBr溶液、含KSCN的FeCl2溶液,实验时滴入浓盐酸,下列说法不正确的是 (　)
A.产生氯气的离子方程式为16H++10Cl-+2Mn2Mn2++5Cl2↑+8H2O
B.⑤处变红色,发生的反应为2Fe2++Cl22Fe3++2Cl-,Fe3++3SCN-Fe(SCN)3
C.②处先变红后褪色,说明氯气溶于水后,溶液有酸性和漂白性
D.③处变蓝色,④处变橙色,则氧化性:Cl2>Br2>I2


17．(12分)如图是小明同学用燃磷法测定空气中氧气体积分数的实验装置，请你回答下列有关问题。
(1)红磷燃烧时冒出浓厚的__ __，反应的文字表达式是__ __。
(2)为了确保实验成功，在装试剂之前应检查装置的__ __。
(3)红磷燃烧消耗氧气，并且生成固体，使得集气瓶内的__ __减小，致使烧杯中的水倒吸入集气瓶，从而粗略测出空气中氧气的体积分数。
(4)燃烧结束后，当集气瓶__ __后松开弹簧夹，过一会儿观察到进入集气瓶中水的体积约占集气瓶内空气体积的__ __。
18．(10分)小明同学在实验室用氯酸钾制取氧气，请回答下列问题：
(1)写出仪器①的名称__ __。


3、海南省2025-2026学年第一学期高三第三次月考生物答案