[九师联盟]2025~2026学年高三核心模拟卷(上)·(二)2英语答案

2025-12-29 00:09:30 5

[九师联盟]2025~2026学年高三核心模拟卷(上)·(二)2英语答案正在持续更新，目前2024-2025衡中同卷答案网为大家整理了相关试题及答案，供大家查缺补漏，高效提升成绩。

本文从以下几个角度介绍。

Light is the main signal that sets your circadian rhythm. Specialized cells in your eyes sense lightSCN then acts as the master clock, organizing all the biological clocks in your body. When your eyesseemorning light, the SCN tells the body to produce cortisol,a hormone that helps control wakefulnessin the morning. As darknes falls, it starts the production of melatonin, a hormone that prepares yourbodyfor sleep.Moder life,with its artificial lighting and scrcen time, can casily mess up this natural cycle.Theblue light from smartphones, tablets, and computers is cspecially good at preventing melatoninit harder to fall asleep.To keep a healthy circadian rhythm, experts suggest getting plenty of natural light during the dayand avoiding bright screens for at least an hour before bedtime. Keeping a regular sleep schedule, evenon weekends, also helps your internal clock run smoothly. A well-controlled circadian rhythm isimportant for both physical and mental health.32.What is themain roleof thecircadian rhythm?A.To manage our eating habits.B. To increase our physical strength.C. To improve our eyesight in the darkD. To control the body's 24-hour biological cycle33. According to the passage, what is the direct effect of morning light on the body?A.ItlowersthebodytemperatureB.It signals thebodytoproducecortisolC.It causes theproduction of melatoninD.It causesimmediatefeelingsof sleepiness34. According to the passage, what is the main problem with blue light at night?A.It causesseriousharm to our eyesB.Itmakespeople too excited togetrelaxedC. It prevents the body from preparing for sleepD.Itfailstoprovide enoughbrightnessin thedarkA.Keepingphysical andmental healthB.AvoidingbrightscreensbeforebedtimeC.Keeping a regular sleeping scheduleD. Getting enough natural light during the day.

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