A
We spend around one third of our lives in bed，and the body does a lot of its repair work as we sleep，so enough good quality sleep is very important to our health.It doesn't stop there，though—some sleep positions are healthier than others.So which sleep position is the healthiest?
Sleeping on your back is the healthiest sleep position.Health benefits include avoiding back and neck pain.Because the head is raised above the stomach when you sleep on your back，this position is best for people who suffer from nighttime acid reflux(胃酸逆流) as well.Around 80% of heartburn(胃灼热) sufferers have problems during the night，so sleeping on their back could help a lot of people to enjoy a good night's sleep.If the sleep position alone is not enough to alleviate the condition，try raising the head of the bed by up to 4 inches by placing blocks under it.
When you sleep on your back，your face is in a natural position.This means less wrinkles(皱纹)．
If you really can't face sleeping on your back，another healthy sleep position is the side sleep.It's almost as good as the back position，and it's better for people who snore(打鼾) and their partners.Whichever sleep position you choose，use a pillow that supports the head and the neck without raising the head unnaturally，as this can bring neck pain.
【语篇解读】 本文介绍了两种对健康有益的睡眠姿势。
1．Which is NOT one of the benefits of sleeping on the back?
A．It can avoid acid reflux.
B．It makes people look younger.
C．It helps people get rid of stomach pain.
D．It's good for heartburn sufferers.
C [细节理解题。从第二段内容可知仰卧对胃灼热的人有益，但没说可以医治胃病。]
2．The underlined word “alleviate” in Paragraph 2 probably means “________”．
A．make people enjoy B．make people forget
C．make it less useful D．make it less serious
D [词义猜测题。从前半句“If the sleep position alone is not enough ...”及后面的“...try raising the head of the bed by up to 4 inches...”可推知，如果只这样做还不够(不能缓解不适症状)，则可以试着把床头加高四英寸。故选D项。]
3．What does the text mainly talk about?
A．Ways to keep us healthy.
B．The importance of sleep.
C．Healthy positions of sleep.
D．Sleep's repairing functions.
C [主旨大意题。从第一段“some sleep positions are healthier than others.So which sleep position is the healthiest？”及全文的描述可知选C项。]
4．Which part of a magazine may the article appear in?
A．Science fiction. B．Sports.
C．Health. D．Fashion.
C [文章出处题。本文主要介绍了两种对健康有益的睡眠姿势。故最有可能出现在杂志上与“健康”相关的部分中。]
