On the area weather map, most stations in southern Michigan are still reporting sunny skies. It’s seventy-nine degrees at Detroit, seventy-three de grees at Lansthg. Chicago is reporting light showers. South Bend is cloudy as the cloudiness moves in from the southwest. The temperature at Ann Ar bor Airport in degrees Celsius is twenty-three point three. That’ s seventy four degrees on the Fahrenheit scale. Sixty-six degrees is the water tempera ture of the lake with winds gusting at twenty knots. The relative humidity is fifty-five percent and the barometric pressure is thirty point eleven inches of mercury and falling. The poliution index today is seventy-five. The quality of our air is fair. Sunrise will be at six o’ clock tomorrow morning. And now for the extended forecast. For tonight, we expect partly cloudy condi tions and mild temperatures with tonight’s low about sixty degrees and only a twenty percent chance of any showers this evening. Tomorrow m
Judging from recent surveys, most experts in sleep behavior agree that there is virtually an epidemic of sleepiness in the nation. "I can’t think of a single study that hasn’t found Americans getting less sleep than they ought to." says Dr. David.
The beginning of our sleep deficit crisis can be (1) to the invention of the light bulb a century ago. From diary entries and other personal (2) from the 18th and 19th centuries, sleep scientists have reached the conclusion that the average person used to sleep about 9.5 hours a night. By the 1950s and 1960s, that sleep schedule had been reduced (3) , to between 7.5 and 8 hours, and most people had to wake to an alarm clock. "People cheat on their sleep, and they don’t even (4) they’re doing it," says Dr. David. "They think they’re okay because they can get by on 6.5 hours, when they really need 7.5, 8 or even more to feel ideally (5) <
A. consequences
B. complexity
C. ingenious
D. dramatically
E. suffers
F. tracked
G. realize
H. expensive
I. slightly
J. traced
K. detaches
L. vigorous
M. inspiration
N. accounts
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