He is one of those who ______ very hard.

A. works    B. work       C. is    D. are

. He is one of those who ______ very hard.

A. works     B. work     C. is     D. are

完形填空（共20小题，每小题2分，满分40分）

John, a famous musician, took his priceless zither (齐特琴) and played it in the crowded subway station. The music from the zither was delicately streaming __1__ the whole station. However, during the one-hour play only six or seven people truly __2__ the charming music. A three-year-old kid was so __3__ by the music that he forgot everything around. John only got 52 U.S. dollars for his work that day.

__4__, in normal days, when John is about to hold a concert, the ticket can be sold for more than 100 dollars and it is extremely __5__ to buy a ticket even at such a high price. Therefore, later, many __6__ in the station that day felt deeply regretful for not __7__ the famous musician and missing such a valuable but __8__ music feast.

I have a very busy friend who totally __9__ after knowing that his wife came down with a deadly illness. He cooked by himself for the family and took a walk with his wife every day. But his wife still did not __10__ to conquer the illness and passed away after three months. After that, he often sighed miserably that __11__ his past busy life, he had missed a lot of beautiful time with his wife. But now it is impossible to __12__ it.

Actually, I also missed something __13__ before. The __14__ we missed those things is simple: we had thought that we could still own them __15__.

Yet tomorrow is actually by no means __16__. There was a famous Buddhist monk saying that in many people’s __17__, they had only done two things: waiting and regretting. The result is that they were always too late to __18__ what they had. We would often claim to do something when we grow up, or when we have money or when we become old, etc. However, when we reach the __19__ we have expected, we could no longer __20__ our wish, because we have lost it by then.

1.                A．throughout      B．before         C．above    D．for

2.                A．heard          B．appreciated     C．found    D．absorbed

3.                A．attracted       B．confused        C．excited   D．stuck

4.                A．Therefore       B．However        C．Then D．Also

5.                A．convenient      B．necessary       C．easy D．hard

6.                A．listeners        B．passers-by       C．viewers   D．children

7.                A．greeting        B．recognizing      C．paying    D．contacting

8.                A．common        B．meaningful      C．cheap    D．expensive

9.                A．escaped        B．abandoned      C．submitted D．changed

10.               A．decide         B．want           C．manage   D．agree

11.               A．as with         B．thanks to       C．due to D．as for

12.                                A．come up with    B．look forward to

C．make up for                      D．look back on

13.               A．difficult        B．present        C．precious   D．delightful

14.               A．reason         B．origin          C．chance    D．result

15.               A．today          B．nowadays       C．yesterday  D．tomorrow

16.               A．reliable        B．easy           C．comfortable    D．charming

17.               A．lives           B．works          C．plans D．tasks

18.               A．protect         B．miss           C．suggest    D．value

19.               A．top            B．condition       C．success   D．scene

20.               A．say            B．understand      C．forget D．realize

Every fall, like clockwork, Linda Krentz of Beaverton, Oregon, felt her brain go on strike. “I just couldn’t get going in the morning,” she says. “I’d get depressed and gain 10 pounds every winter and lose them again in the spring.” Then she read about seasonal affective disorder, a form of depression that occurs in fall and winter, and she saw the light literally. Every morning now she turns on a specially constructed light box for half an hour and sits in front of it to trick her brain into thinking it’s still enjoying those long summer days. It seems to work.

Krentz is not alone. Scientists estimate that 10 million Americans suffer from seasonal depression and 25 million more develop milder versions. But there’s never been definitive proof that treatment with very bright lights makes a difference. After all, it’s hard to do a double-blind test when the subjects can see for themselves whether or not the light is on. That’s why nobody has ever separated the real effects of light therapy from placebo(安慰剂) effects.

Until now, in three separate studies published last month, researchers report not only that light therapy works better than a placebo but that treatment is usually more effective in the early morning than in the evening. In two of the groups, the placebo problem was resolved by telling patients they were comparing light boxes to a new anti-depressant device that gives off negatively charged ions(离子). The third used the timing of light therapy as the control.

Why does light therapy work? No one really knows. “Our research suggests it has something to do with shifting the body’s internal clock,” says psychiatrist Dr. Lewey. The body is programmed to start the day with sunrise, he explains, and this gets later as the days get shorter. But why such subtle shifts make some people depressed and not others is a mystery.

That hasn’t stopped thousands of winter depressives from trying to heal themselves. Light boxes for that purpose are available without a doctor’s prescription. That bothers psychologist Michael Terman of Columbia University. He is worried that the boxes may be tried by patients who suffer from mental illness that can’t be treated with light. Terman has developed a questionnaire to help determine whether expert care is needed.

In any event, you should choose a reputable manufacturer. Whatever product you use should give off only visible light, because ultraviolet light damages the eyes. If you are photosensitive(对光敏感的), you may develop a rash. Otherwise, the main drawback is having to sit in front of the light for 30 to 60 minutes in the morning. That’s an inconvenience many winter depressives can live with.

57. What is the probable cause of Krentz’s problem?

A. An unexpected gain in body weight.

B. Unexplained impairment of her nervous system.

C. Weakening of her eyesight with the setting in of winter.

D. Poor adjustment of her body clock to seasonal changes.

58. What is the CURRENT view concerning the treatment of seasonal depression with bright lights?

A. Its effect remains to be seen.         

B. It serves as a kind of placebo.

C. It proves to be an effective therapy.    

D. It hardly produces any effects.

59. What is psychologist Michael Terman’s major concern?

A. Winter depressives will be addicted to using light boxes.

B. No mental patients would bother to consult psychiatrists.

C. Bad light boxes will give off harmful ultraviolet lights.

D. Light therapy could be misused by certain mental patients.

60. Which of the following statements is TRUE?

A. Winter depressives prefer light therapy in spite of its inconvenience.

B. Light therapy increases the patient’s photosensitivity.

C. Eye damage is a side effect of light therapy.

D. Light boxes can be programmed to correspond to shifts in the body clock.