Getting to work before it is light and leaving after it is dark during winter months can lead to serious mental health problems，a charity （慈善机构）has warned．Working without daily（41）
can result in feelings of depressions which may finally（42）
into seasonal affective disorder （SAD），Mental Health Research UK（MHRUK） said．
The warning found that three in ten adults（43）
before sunrise during the winter months and return home from work after（44）
．The charity's survey of 2，000British adults also found that half were（45）
that their workplace had little natural light．And almost one in ten said they had no（46）
to natural light at all while at work．
Dr Laura Davidson，mental health lawyer and agent of MHRUK，said，"It is（47）
that one million working hours are lost each year（48）
SAD．"Employers need to have a better understanding of（49）
important natural light is good mental health．They have the（50）
to ensure that work and study environments have（51）
windows to flood buildings with as（52）
natural light as possible．Darker areas must be well（53）
daylight bulbs（灯泡）to reduce the bad（54）
of less light．
The charity hopes to raise（55）
for SAD and depression during its annual campaign．On the third Monday of the month，workers are called upon to dress（56）
in order to fight against"blue Monday"．Researchers say（57）
the third Monday of January is the most（58）
day of the year．The charity is（59）
people to dress in colorful clothing to show the dilemma of those who（60）from the condition and to raise money for research into treatments．
| 41．A．meals | B．sunlight | C．efforts | D．motivation |
| 42．A．search | B．brings | C．look | D．develop |
| 43．A．exercise | B．practice | C．rise | D．raise |
| 44．A．dawn | B．permission | C．sunset | D．performance |
| 45．A．amused | B．surprised | C．inspired | D．concerned |
| 46．A．wish | B．access | C．approach | D．entrance |
| 47．A．evaluated | B．hoped | C．accepted | D．suggested |
| 48．A．as a result of | B．regardless of | C．instead of | D．for lack of |
| 49．A．when | B．where | C．why | D．how |
| 50．A．opportunity | B．responsibility | C．ability | D．power |
| 51．A．abnormal | B．wooden | C．plastic | D．abundant |
| 52．A．much | B．far | C．long | D．many |
| 53．A．based on | B．faced with | C．equipped with | D．focused on |
| 54．A．consequence | B．reflection | C．reason | D．influence |
| 55．A．level | B．awareness | C．agreement | D．collection |
| 56．A．brightly | B．formally | C．vividly | D．naturally |
| 57．A．what | B．that | C．who | D．which |
| 58．A．exciting | B．shocking | C．depressing | D．demanding |
| 59．A．waiting for | B．searching for | C．calling on | D．counting on |
| 60．A．escape | B．recover | C．depart | D．suffer． |