登录
四、 阅读材料，判断各个人物的习惯是(T)否(F)健康，并写出理由或建议。
Do you look at your phone or tablet before bedtime? This may make you sleep poorly!
At night, our bodies make melatonin(褪黑素) that helps us feel tired and ready for bed. But the blue light from phone, computer and TV screens stops our bodies from making enough melatonin. Even a little blue light is bad. It can trick our brain into staying “awake”! Playing exciting games before bed is worse. Games make our heart beat fast, so it’s harder to fall asleep. Even if we sleep, we might not rest well. Here are some tips for better sleep：
Do you look at your phone or tablet before bedtime? This may make you sleep poorly!
At night, our bodies make melatonin(褪黑素) that helps us feel tired and ready for bed. But the blue light from phone, computer and TV screens stops our bodies from making enough melatonin. Even a little blue light is bad. It can trick our brain into staying “awake”! Playing exciting games before bed is worse. Games make our heart beat fast, so it’s harder to fall asleep. Even if we sleep, we might not rest well. Here are some tips for better sleep：
答案
1. F Blue light from phone screens stops your body from making enough melatonin. Exciting games make your heart beat fast. So stop doing that before bedtime.
2. T Warm milk is a good drink before sleep. Reading helps relax, and there's no blue light from books!
3. F Running makes your body excited. This makes it hard to fall asleep and rest well. Don't exercise right before sleep.
4. F TV screens make blue light too! So sleep in a dark, quiet room without any screen.（答案不唯一）
2. T Warm milk is a good drink before sleep. Reading helps relax, and there's no blue light from books!
3. F Running makes your body excited. This makes it hard to fall asleep and rest well. Don't exercise right before sleep.
4. F TV screens make blue light too! So sleep in a dark, quiet room without any screen.（答案不唯一）
