题目内容：

Think positive

How are you feeling today? If your head 's in a spin because you 've had a bad night 's sleep, or maybe you've just got too much to do, the chances are you 're not in the best of moods. If everything seems like an effort and you have a negative attitude, the last thing you want to be told is to ‘be positive !  1. .

Of course, developing a positive attitude is easier said than done. 2. When you're

feeling down, it is hard to be optimistic. But a study in the US has found that people who are optimists are more likely to live longer than those who have a more negative approach to life. So, maybe the thought of a longer life might encourage you to have a more hopeful outlook on life.

3. . Professor Lewina Lee from Boston University School of Medicine, who worked on the study, told the BBC that : “Our findings speak to the possibility that raising levels of optimism may promote longevity and healthy ageing. ” And she advises that pessimists could benefit from doing things like imagining a future where everything turns out well.

4. .Vicki Siska says “Music feeds my soul. A sense of humour keeps things in perspective.” And Pippa Kennedy says “ being grateful for what you have — and lots of chocolate —helps ! ” 5. . That's probably why other people have recommended doing yoga as well as staying fit and healthy to help maintain a positive outlook on life.

A. It doesn't come naturally to everyone.

B. As we know, every coin has two sides.

C. But being positive could have more benefits than you think.

D. Pessimists tend to give up when facing difficulties.

E. The saying goes that a healthy body leads a healthy mind.

F. People have been giving their personal advice on keeping a positive approach to life.

G. The study concluded that optimists may find it easier to control emotions and get less stressed.