After three hours of questioning the suspect broke down and ().

A.letting, up on  

B.to let, /  

C.to let, up with  

D.letting, up for

A、involving

B、including

C、combining

D、containing

Why didn’t the three walk back together after the car got stuck in the sand？()

A、They didn’t have enough food and water.

B、The writer knew where to get a camel or a car.

C、The writer knew a Bedouin who lived nearby would give help.

D、The long desert walk was too hard for the young and the old.

Doctors have their own special sleep problems. Residents are famously short of sleep. It is not unusual for. them to work 40 hours in a row without rest. They are not in the least worried about it, confident they can still deliver the highest quality of medical care. But an article in the Journal of the American Medical Association points out that in the morning after 24 hours of sleeplessness, a person' s motor performance is comparable to that of someone who is drunk. Curiously, surgeons who believe that operating under the influence of alcohol is grounds for sacking often don' t think twice about operating without enough sleep.

"I could tell you horror stories," says Jaya Agrawal, president of the American Medical Student Association, which runs a website for residents. Some are terrifying." I was operating after being up for over 36 hours," one writes. "I literally fell asleep standing up and nearly planted my face into the wound."

"Practically every surgical resident I know has fallen asleep at the wheel driving home from work," writes another. "I know of three who have hit parked cars. Another hit a 'Jersey gate' on the New Jersey Expressway, going 105kin/h."

"Your own patients have become the enemy," writes a third, because they are "the one thing that stands between you and a few hours of sleep."

The U.S. controls the hours of pilots and truck drivers. But until such a system is in place for doctors, patients are on their own. If you're worded about the people treating you or a loved one, you should feel free to ask how many hours of sleep they have had and if more rested staffers are available.

Sleep is a funny thing because ______.

A．the longer one sleeps, the less sound sleep he gets

B．the more sleep one gets, the more likely a stroke occurs

C．many people stick to about eight hours of sleep to stay fine

D．many people who sleep six hours a night still feel energetic in the day

Doctors have their own special sleep problems. Residents are famously short of sleep. It is not unusual for. them to work 40 hours in a row without rest. They are not in the least worried about it, confident they can still deliver the highest quality of medical care. But an article in the Journal of the American Medical Association points out that in the morning after 24 hours of sleeplessness, a person' s motor performance is comparable to that of someone who is drunk. Curiously, surgeons who believe that operating under the influence of alcohol is grounds for sacking often don' t think twice about operating without enough sleep.

"I could tell you horror stories," says Jaya Agrawal, president of the American Medical Student Association, which runs a website for residents. Some are terrifying." I was operating after being up for over 36 hours," one writes. "I literally fell asleep standing up and nearly planted my face into the wound."

"Practically every surgical resident I know has fallen asleep at the wheel driving home from work," writes another. "I know of three who have hit parked cars. Another hit a 'Jersey gate' on the New Jersey Expressway, going 105kin/h."

"Your own patients have become the enemy," writes a third, because they are "the one thing that stands between you and a few hours of sleep."

The U.S. controls the hours of pilots and truck drivers. But until such a system is in place for doctors, patients are on their own. If you're worded about the people treating you or a loved one, you should feel free to ask how many hours of sleep they have had and if more rested staffers are available.

Sleep is a funny thing because ______.

A．the longer one sleeps, the less sound sleep he gets

B．the more sleep one gets, the more likely a stroke occurs

C．many people stick to about eight hours of sleep to stay fine

D．many people who sleep six hours a night still feel energetic in the day

Late-night Drinking

Coffee lovers beware. Having a quick "pick-me-up" cup of coffee late in the day will play havoc with your sleep. As well as being a stimulant, caffeine interrupts the flow of melatonin, the brain hormone that sends people into a sleep.

Melatonin levels normally start to rise about two hours before bedtime. Levels then peak between 2 am and 4 am, before falling again. "It's the neurohormone that controls our sleep and tells our body when to sleep and when to wake," says Maurice Ohayon of the Stanford Sleep Epidemiology Research Center at Stanford University in California. But researchers in Israel have found that caffeinated coffee halves the body's levels of this sleep hormone.

Lotan Shilo and a team at the Sapir Medical Center in Tel Aviv University found that six volunteers slept less well after a cup of caffeinated coffee than after drinking the same amount of decaf. On average, subjects slept 336 minutes per night after drinking caffeinated coffee, compared with 415 minutes after decal They also took half an hour to drop off — twice as long as usual — and jigged around in bed twice as much.

In the second phase of the experiment, the researchers woke the volunteers every three hours and asked them to give a urine sample. Shilo measured concentrations of a breakdown product of melatonin. The results suggest that melatonin concentrations in caffeine drinkers were half those in decal drinkers. In a paper accepted for publication in Sleep Medicine, the researchers suggest that caffeine blocks production of the enzyme that drives melatonin production.

Because it can take many hours to eliminate caffeine from the body, Ohayon recommends that coffee lovers switch to decaf after lunch.

The author mentions "pick-me-up" to indicate that

A．melatonin levels need to be raised.

B．neurohormone can wake us up.

C．coffee is a stimulant.

D．decaf is a caffeinated coffee.

Three small fish lived in the sea.When they were very young ,their parents died.

They had to __1___each other day after day.Finally, they grew up and __2____dared to swim deeper and further.

One morning the three fish were __3____ to a shallow(i&)water by a big wave(浪)。A small boat was taken there too.It was hard for the fish to go back to the sea because the boat was right in front of them.The largest fish realized that they were __4___ and said they had to find a way to leave there as fast as possible.The second largest fish ___5___with his elder brother, but the youngest one did not.He said that there was much ___6__ for them to swim, so he would not worry at all and still swam around ____7__At last, the largest fish returned to the ___8___ by jumping over the lowest part of the boat.The second largest fish also succeeded in ___9____ his elder brother in the other side of water.But the oungest one didn’t follow them and stayed in the shallow water.Two hours later, when the ___10_ rose up, the water in the small shallow corner dried up.The fish who did not try to return to the sea died of lack of water.

1.A.talk with

B.worry about

C.listen to

D.look after

2.A.refused

B.stopped

C.dared

D.hated

3.A.invited

B.taken

C.allowed

D.given

4.A.in danger

B.in peace

C.in safety

D.in doubt

5.A.compared

B.discussed

C.agreed

D.talked

6.A.water

B.air

C.time

D.food

7.A.luckily

B.happily

C.slowly

D.sadly

8.A.lake

B.pond

C.sea

D.river

9.A.taking

B.telling

C.catch

D.joining

10.A.moon

B.sun

C.storm

D.stars