第三部分：阅读理解（共20小题；每小题2分，满分40分）
阅读下列短文，然后从各题所给的A、B、C、D四个选项中，选出最佳选项。
You’ve no doubt heard people say how much they “need” a holiday，when what they really mean is that they want one．Certainly，people working under pressure feel a very strong desire to escape from work and become less tight during their holidays，and experience a changed environment．
Once people become used to going on holiday，taking holidays becomes a habit．For many people the holiday is one of the last things to be given up，and indeed many workers have chosen to spend some of their last pay when being on holiday．It may give them a “lift” in facing some difficulties in life．
Most of us also enjoy showing off the lovely tans—dark skins we get from a holiday．So many tourists are now able to afford holidays in the sun that tans have become quite common；although we join a tan together with health，it has been fully shown that too much sunshine will result in high danger of skin problems，as well as drying out one’s skin and leading to more lines on your face later in life．
56．According to the passage above，more and more people choose to have holidays because they ________．
A．hate working indoors all the time  
B．want to get away from work
C．love enjoying the beauties of nature
D．become rich and want a better life
57．When office people have holidays，they often _______．
A．lie on the beach and enjoy sunshine
B．spend more than they can afford
C．think about their work on the beach
D．choose to do more physical exercise
58．A holiday may _______ when one has to face some difficulties in life．
A．cheer someone up                         B．help someone find a job
C．be the last thing to be given up              D．bring good luck to someone
59．At the end of the passage the writer tries to tell the reader ______．
A．the importance of getting sunshine
B．the bad effect of being on holiday
C．the result of getting sun tanned
D．the healthy look of being tanned