What is the writing style of the article？

provide effective medical care to their patients without the help of numerous other

medical employees. From the viewpoint of the patients, the nursing staff is particularly

important. Nurses are usually in close contact with patients as long as they are in the

hospital.

A nurse does not study for as many years as a doctor. however , each must be equally

dedicated. Caring for sick persons requires a great deal of patience and concern. Most

nurses work long days, and they often must work at odd hours or during the night.

Under the supervision (监管) of the head nurse, the nursing staff must provide nursing

services on a 24-hour basis and attend to patients' needs. This responsibility continues

around the clock, and so nurses must work in shifts. A shift is a period of duty, usually

eight in length. The nurses on the ward rotate their shifts. Some take turns working night

duty; others work odd shifts.

A nurse must always be alert. She can never afford to be careless. This is true in all

nursing situation, but it is especially true in the intensive care unit. Patients under

intensive care are critically ill, and they must be monitored at all times. The nurses who

do intensive care duty have one of the most demanding jobs in the hospital.

Serving as a nurse can be a very rewarding job. But it is not an easy one. Not every

person is suited to become a nurse. Only very dedicated people have chosen nursing as a

profession.

[   ]

B. play an important role in caring for patients

C. can work effectively without physicians

D. are always in close contact with the patients

[    ]

B. Most nurses work long days.

C. Caring for sick patients requires patience and concern.

D. They are not dedicated.

[    ]

B. nursing services must be provided continuously.

C. they work at night from time to time.

D. a shift is usually eight hours long.

[   ]

B. An able person.

C. A very dedicated person.

D. A specially trained person.

and Development shows that children aged 9 t0 12 who sleep less than nine hours a night can have real

problems with gaining weight.

Dr.Julie Lumeng, lead author of the report said, " Many children aren't getting enough sleep , which

may not only make them annoyed or prevent them from being active and ready to learn at

school,but also lead to a higher risk of being overweight. " Reuters reports.

She also said that children who sleep more than 10 hours a night are more willing to play and consume

their energy , rather than staying in bed or watching TV as their tired fellows do.

It is also said that hormonal(荷尔蒙) changes brought on by a lack of sleep can lead to an increased

appetite.

The study focused on 785 children aged 9 to 12 from 10 different states and it confirmed that 18%

were overweight by the time they reached the sixth grade. Children who do not sleep nine or more hours

a night when they are in the third grade are more likely to gain weight by the time they are in the sixth

grade.

The conclusion of the study is very simple :

"Our findings also provide additional support for policies that approve of later school start times. The

very early school start times for US children have raised concerns in the medical community because of

their apparent  negative effects  on  sleep  duration(廷续性) and , consequently, children's  general

academic and behavioral functioning , " Reuters reports.

According to National Sleep Foundation, children in first grade should sleep from 10 to 12 hours a

night.

Dr. Julie Lumeng' s report was published in the journal of the American Academy of Pediatrics (小

儿辩 ) in November.

B. become unhappy and inactive

C. are ready to leam their lessons

D. are active in doing school work

B. they are better at playing sports

C. they have enough energy to use

D. their personalities are more outgoing

B. A lack of sleep is associated with weight gain.

C. Less than one fifth of children are overweight.

D. The longer they sleep , the heavier they become.

B. Because many students complain of too long school hours.

C. Because later school start times may affect children physically.

D. Because a lack of sleep creates harmful effects on children.

B. A Recent Study on Health Problem

C. A Danger to Children's Health

D. Sleep Time and Overweight