单选题
Do you wake up every day feeling too tired, or even upset? If so, then a new alarm clock could bejust for you. The clock, called Sleep Smart, measures your sleep cycle, and waits for you to be in your lightest phase of sleep (51) rousing you. Its makers say that should (52) you wake up feeling refreshed every morning. As you sleep you pass (53) a sequence of sleep states - light sleep, deep sleep and REM (rapid eye movement)sleep - that (54) approximately every 90 minutes. The point in that cycle at which you wake can (55) how you feel later, and may even have a greater impact than how much or little you have slept. Being roused during a light phase means you are more likely to wake up energetic. Sleep Smart (56) the distinct pattern of brain waves (57) during each phase of sleep, via a headband equipped (58) electrodes (电极) and a microprocessor. This measures the electrical activity of the wearer' s brain, in much the (59) way as some machines used for medical and research (60) , and communicates wirelessly with a clock unit near the bed. You (61) the clock with the latest time at (62) you want to be wakened, and it then duly (适时地) wakes you during the sleep phase before that. The (63) was invented by a group of students at Brown University in Rhode Island (64) , a friend complained of waking up tired and performing poorly on a test. "As sleep -deprived people ourselves, we started thinking of (65) 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.
单选题
A. upon B. before C. towards D. till
【正确答案】
B
【答案解析】根据上下文应选before，表示“叫醒你之前”。
单选题
A. ensure B. assure C. require D. request
【正确答案】
A
【答案解析】根据上下文可知，发明者认为这种闹钟会确保人们起床后感觉精力充沛，故选A。
单选题
A. through B. into C. about D. on
【正确答案】
A
【答案解析】“pass through”为一同定词组，表示“经历、经过”。
单选题
A. reveals B. reverses C. resumes D. repeats
【正确答案】
D
【答案解析】根据上下文可知，人们睡眠的不同阶段大约在90分钟重复一次，故选D。
单选题
A. effect B. affect C. reflect D. perfect
【正确答案】
B
【答案解析】作者谈到，人们在睡眠过程中的某一时刻醒来，对后来的感觉会有影响，故选B。
单选题
A. removes B. relieves C. records D. recalls
【正确答案】
C
【答案解析】从上下文意思看，此处应填“记录下来”records。
单选题
A. proceeded B. produced C. pronounced D. progressed
【正确答案】
B
【答案解析】根据上下文，此处意思为“在睡眠的每个阶段产生的脑电波”，故选B。
单选题
A. by B. of C. with D. over
【正确答案】
C
【答案解析】“be equipped with”为一同定搭配，表示“以…作装备”。
单选题
A. familiar B. similar C. identical D. same
【正确答案】
D
【答案解析】“in much the same way as”是一固定短语，表示“在很大程度上与…相同”。
单选题
A. findings B. prospects C. proposals D. purposes