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Do you wake up every day feeling too tired, or even upset? If so, then a new alarm clock could be just for you. The clock, c
Do you wake up every day feeling too tired, or even upset? If so, then a new alarm clock could be just for you. The clock, c
admin
2017-07-09
44
问题
Do you wake up every day feeling too tired, or even upset? If so, then a new alarm clock could be just for you.
The clock, called SleepSmart, measures your sleep cycle, and waits【C1】______ you to be in your lightest phase of sleep【C2】______ rousing you. Its makers say that should【C3】______ you wake up feeling refreshed every morning.
As you sleep you pass【C4】______ a sequence of sleep states—light sleep, deep sleep and REM (rapid eye movement) sleep—that【C5】______ approximately every 90 minutes. The point in that cycle at which you wake can【C6】______ how you feel later, and may【C7】______ have a greater impact than how much or little you have slept. Being roused during a light phase【C8】______ you are more likely to wake up energetic.
SleepSmart【C9】______ the distinct pattern of brain waves【C10】______ during each phase of sleep, via a headband equipped【C11】______ electrodes (电极) and a microprocessor. This measures the electrical activity of the wearer’s brain, in much the【C12】______ way as some machines used for medical and research【C13】______ , and communicates wirelessly with a clock unit near the bed. You【C14】______ the clock with the latest time at【C15】______ you want to be wakened, and it【C16】______ duly(适时地) wakes you during the last light sleep phase before that.
The【C17】______ was invented by a group of students at Brown University in Rhode Island【C18】______ a friend complained of waking up tired and performing poorly on a test.’’【C19】______ sleep-deprived people ourselves, we started thinking of【C20】______ to do about it," says Eric Shashoua, a recent college graduate and now chief executive officer of Axon Sleep Research Laboratories, a company created by the students to develop their idea.
【C2】
选项
A、upon
B、before
C、towards
D、till
答案
B
解析
上下文逻辑。空格前提到,SleepSmart等到人们进入最浅睡眠阶段,而空格后提到SleepSmart将人们唤醒。根据逻辑可以推断,闹钟应该是等到人们进入最浅睡眠阶段后才唤醒人,故B项:before为正确答案。
转载请注明原文地址:https://kaotiyun.com/show/kVbZ777K
0
考研英语一
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