A warm blanket is the ideal sleep aid for a freezing winter night. The right blanket can warm your bones but the wrong one can affect your sleep. I asked experts for advice on picking the perfect blanket for a good night’s sleep. Here’s what they told me.
When it comes to sleep temperature, experts recommend following the principle: not too cold, not too hot, but just right. “People seem to sleep best at temperature between 62 and 70 degrees F,” says Dr. Alice Hoagland. When the surrounding temperature falls too low, it can rouse you from sleep. A good blanket helps drive the coldness away.
At the other extreme, overheating yourself can affect your sleep as well. “Core body temperature typically drops during the first four hour’s of sleep,” says Dr. Hoagland. This decline in body temperature helps you fall asleep and stay asleep.
“In medical care, weighted blankets are one of our most powerful tools for helping people who are anxious, upset, and possibly losing control,” says Dr. Karen Moore. These special blankets are filled with weighted pellets. Weighted blankets are also marketed for general use as an aid to sleep and relaxation. Like a firm hug, weighted blankets help us feel safe.” This is the reason why many people like to sleep under a blanket even in summer.
“If you want to try this type of blanket, the best weight depends on your body size and personal preference. However, 15 to 30 pounds is typical for adults,” Moor says. She adds that weighted blankets are not recommended for those recovering from surgery.
“People can also have serious preferences for a particular blanket,” says Dr. Hoagland. “Regularly using a favorite blanket for sleep can help to develop a conditioned response so that sleep is quicker.” In fact, many sleep centers ask patients to bring their own blanket and pillow from home, which helps them fall asleep more easily.
小題1:The author wrote the passage mainly to tell us _____.
A．the importance of blankets
B．how to choose the perfect blanket
C．different materials used to make blankets
D．the history and usage of blankets
小題2:The underlined word “rouse” in Paragraph 2 is the closest in meaning to “______”.
A．wake upB．take upC．make upD．pick up
小題3:What do we know from the passage?
A．Body temperature rises when we fall asleep
B．The perfect sleep temperature should be above 70 degrees F.
C．Weighted blankets should be at least 30 pounds.
D．People are advised to use their own blankets.

小題1:B
小題2:A
小題3:D

試題分析：考察說明文。本文講述的是如何選擇合適的睡覺的毯子，以及與此有關(guān)的各方面的情況介紹。
小題1:B 主旨大意題。根據(jù)文章主題段第一段最后一句I asked experts for advice on picking the perfect blanket for a good night’s sleep. Here’s what they told me. 可知本文是關(guān)于選擇合適的毯子的建議。故B項正確。
小題2:A 推理題。根據(jù)本句When the surrounding temperature falls too low, it can rouse you from sleep.可知當周圍的溫度下降太快，會讓人們從睡眠中蘇醒過來。故該詞是指A項的意思。
小題3:D 細節(jié)題。根據(jù)文章最后一句In fact, many sleep centers ask patients to bring their own blanket and pillow from home, which helps them fall asleep more easily.可知作者建議人們使用自己的毯子。故D正確。
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