单选题Studies show that the average woman ______.A sleeps less than the average manB sleeps longer when she goes out to workC has difficulty in getting to sleepD sleeps over eight hours a night

Studies have shown that the stature of an average Japanese has surpassed that of an average Chinese.

A:weight
B:height
C:life span
D:size

Everybody sleeps,but what people stay up late to catch—or wake up early in order not to miss—varies by culture.From
data collected,it seems the things that cause us to lose the most sleep,on average,are sporting events,time changes,and
holidays.Around the world,people changed sleep patterns thanks to the start or end of daylight savings time.Russians,for
example,began to wake up about a half hour later each day after President Vladimir Putin shifted the country permanently to“winter time”starting on October 26.
Russia’s other late nights and early mornings generally correspond to public holidays.On New Year’s Eve,Russians have the world’s latest bedtime,hitting the hay at around 3:30 am.Russians also get up an hour later on International Women’s
Day,the day for treating and celebrating female relatives.
Similarly,Americans’late nights late mornings,and longest sleeps fall on three-day weekends.Canada got the least sleep of the year the night it beat Sweden in the Olympic hockey final.
The World Cup is also chiefly responsible for sleep deprivation,the worst night for sleep in the U.K.was the night of the
England-Italy match on June 14.Brits stayed up a half-hour later to watch it,and then they woke up earlier than usual the next morning thanks to summer nights,the phenomenon in which the sun barely sets in northern countries in the summertime.That was nothing,though,compared to Germans,Italians,and the French,who stayed up around an hour and a half later on
various days throughout the summer to watch the Cup.
It should be made clear that not everyone has a device to record their sleep patterns,in some of these nations,it’s likely
that only the richest people do.And people who elect to track their sleep may try to get more sleep than the average person.
Even if that’s the case,though,the above findings are still striking,if the most health-conscious among us have such deep
swings in our shut-eye levels throughout the year,how much sleep are the rest of us losing

What do we learn about the Russians regarding sleep 《》（）

A.They don’t fall asleep until very late.
B.They don’t sleep much on weekends.
C.They get less sleep on public holidays.
D.They sleep longer than people elsewhere.

Everybody sleeps,but what people stay up late to catch—or wake up early in order not to miss—varies by culture.From
data collected,it seems the things that cause us to lose the most sleep,on average,are sporting events,time changes,and
holidays.Around the world,people changed sleep patterns thanks to the start or end of daylight savings time.Russians,for
example,began to wake up about a half hour later each day after President Vladimir Putin shifted the country permanently to“winter time”starting on October 26.
Russia’s other late nights and early mornings generally correspond to public holidays.On New Year’s Eve,Russians have the world’s latest bedtime,hitting the hay at around 3:30 am.Russians also get up an hour later on International Women’s
Day,the day for treating and celebrating female relatives.
Similarly,Americans’late nights late mornings,and longest sleeps fall on three-day weekends.Canada got the least sleep of the year the night it beat Sweden in the Olympic hockey final.
The World Cup is also chiefly responsible for sleep deprivation,the worst night for sleep in the U.K.was the night of the
England-Italy match on June 14.Brits stayed up a half-hour later to watch it,and then they woke up earlier than usual the next morning thanks to summer nights,the phenomenon in which the sun barely sets in northern countries in the summertime.That was nothing,though,compared to Germans,Italians,and the French,who stayed up around an hour and a half later on
various days throughout the summer to watch the Cup.
It should be made clear that not everyone has a device to record their sleep patterns,in some of these nations,it’s likely
that only the richest people do.And people who elect to track their sleep may try to get more sleep than the average person.
Even if that’s the case,though,the above findings are still striking,if the most health-conscious among us have such deep
swings in our shut-eye levels throughout the year,how much sleep are the rest of us losing

How does Alan Blinder portray Yellen 《》（）

A.She possesses strong persuasive power.
B.She has confidence in what she is doing.
C.She is one of the world’s greatest economists.
D.She is the most powerful Fed chief in history.

Passage Two
The thought of not sleeping for twenty-four hours or more is not a pleasant one for most people．The amount of sleep that each person needs varies．In general,each of us needs about eight hours of sleep each day to keep our bodies healthy and happy．Some people,however,can get by just a few hours of sleep at night．
It doesn't matter when or how much a person sleeps．But everyone needs some rest to stay alive．Few doctors would have thought that there might be an exception on this．Sleep is,after all,a very basic need．But a man named AI Herpin turned out to be a real exception,for supposedly,he never slept!
A1 Herpin was 90 years old when doctors came to his home in New Jersey．They hoped to negate the claims that he never slept．But they were surprised．Though they watched him every hour of the day,they never saw Herpin sleeping．He did not even own a bed．He never needed one．
The closest that Herpin came to resting was to sit in a rocking chair and read a half dozen news-papers．His doctors were baffled by this strange case of permanent insomnia．Herpin offered the only clue to his condition．He remembered some talk about his mother having been injured several days be-fore he had been born．Herpin died at the age of 94,never having slept a wink．

This passage centers on______

A.dream interpretation
B.patterns of sleep
C.A1 Herpin's sleepless life
D.sleeps and dreams