题目

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。 Four habits of happy people     While the recent research has shown that about 60 percent of our baseline (基本) level of happiness is probably genetically determined, it means 40 percent is under our control. You can't go back and get new genes. . Here are the good habits of happy people.     Spend time outside. If you can clock 20 minutes a day outside, studies show you'll not only maintain a better mood, but your mind will be more open and you'll improve your working memory. .     Exercise regularly. All exercise releases endorphins (脑内肽) in your brain, and if you work out regularly, this mood boosts（增强）even carries over to non-workout days. . Mood stays about the same on days they don't.     . A study has confirmed that when people actively try to be happy, they raise their baseline moods, making them feel happier than those who do not try. In the study, two sets of participants listened to "happy" music. Those who actively tried to feel happier reported the highest level of positive mood afterwards.     Care for others. . Volunteer work is good for both mental and physical health. People of all ages who volunteer are happier and experience better physical health and less depression. A. Exercise is easy to do. B. Put effort into being happy. C. People around you impact your mood. D. Sunshine and fresh air make you feel good too. E. But you can start a good morning over with a new attitude. F. People who spend time every month helping others are happier. G. On exercise days, people's mood is significantly improved after exercising. 答案：【1】E【2】D【3】G【4】B【5】F

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