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Do you have difficulty falling asleep at night? If so, here is a piece of advice for you: Listen to some soft music.
Scientists have found that soft music can help to improve sleep quality and quantity. It works for people of all ages.
Scientists say that for most people, music that has 70 beats per minute (bpm) works best. Classical, jazz and folk music are usually more effective than other musical styles.
It is very important to get enough high-quality sleep. Before you go to bed tonight, play some soft music. Then, just prepare to be rocked off to dreamland!
| A．This prepares us for sleep. |
| B．Familiar songs work well, too. |
| C．Scientists like different kinds of music. |
| D．Why can soft music help us sleep better? |
| E．If not, you may be woken up by the sudden silence. |
| F．And it works much better for people with sleeping problems. |
同类型试题
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
