Are you a happy person most of time? Or do you easily get angry sometimes? Everyone has a different mood. It is usually believed that both genes（基因）and environment may __ people’s moods in different ways. But now scientists have found that the season of ___ also plays a role.

Scientists from Budapest, Hungary, __ 400 university students. In the study, the students needed to complete a questionnaire（問卷）. The ___ of it was to find out which of four kinds of moods they most had. From the questionnaire, scientists found that the students always answered __ like “My mood often changes for no reason” and “I love to deal with new projects even if it is risky”. These answers were __ with their birthdays.

They discovered that people born in summer easily change between sad and happy moods __ to people born in winter. Those who always feel positive（陽光的）are mostly born in spring and summer.

Moreover, the study found that those born in autumn less __ had a mood of sadness which may easily drive them to cry, __ it wasn’t easy for those born in winter to be angry.

Scientists said maybe this was because the seasons had an influence on certain chemicals in the human body. And the chemicals are important to control people’s moods even in adult life.

“It seems that when you are born may increase or decrease your __ of developing certain mood disorders,” lead scientist Xenia Gonda told The Telegraph.

1.A. change B. influence C. include D. explain

2.A. life B. growth C. birth D. death

3.A. searched B. suggested C. separated D. studied

4.A. purpose B. plan C. message D. project

5.A. anything B. something C. much D. such

6.A. mentioned B. mixed C. marked D. matched

7.A. compared B. confirmed C. considered D. contacted

8.A. properly B. quickly C. probably D. quietly

9.A. when B. while C. though D. since

10.A. change B. condition C. choice D. chance

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