Thanks in part to technology and its constant sounding and ringing, roughly 41 million peo

Thanks in part to technology and its constant sounding and ringing, roughly 41 million people in the United States—nearly a third of all working adults—get six hours or fewer of sleep a night, according to a recent report. 【C1】______, mention of our ever increasing sleeplessness is followed by calls for earlier bedtimes【C2】______a longer nights sleep. But this directive may be【C3】______of the problem. 【C4】______ helping us to get more rest, the tyranny of the eight-hour block【C5】______ a narrow conception of sleep and how we should 【C6】______ it. Doctors who peddle sleep aid products and call for more sleep may【C7】______ reinforce the idea that there is something wrong about interrupted sleep【C8】______. Sleep anxiety is a common result. Some of the time we spend 【C9】______and turning may even result from 【C10】______about sleep and our bodily needs. Thomas A. Wehr, a psychiatrist【C11】______ at the National Institute of Mental Health in Bethesda, Md. , was conducting an experiment in which subjects were deprived of【C12】______ light. Without the illumination and【C13】______ from light bulbs, televisions or computers, the subjects slept【C14】______the night, at least at first. But, after a while, Dr. Wehr noticed that subjects began to wake up a little after midnight, lie awake for a couple of hours, and then【C15】______ back to sleep again. It seemed that,【C16】______a chance to be free of modem life, the body would naturally settle into a【C17】______sleep schedule.【C18】______ they broke their conception of what form. sleep should【C19】______, they looked forward to the time in the middle of the night as a chance for deep thinking of all kinds,【C20】______in the form. of self-reflection or getting a jump on the next day.

【C1】

A．Originally

B．Typically

C．Strangely

D．Precisely

请帮忙给出正确答案和分析，谢谢！