[解析]
36.答案:D.根据Are you truly happy?Do you ever know what it means to be happy and what it takes to achieve happiness?可知这是寻求幸福的人问的问题. 故选D.
37.答案:B.根据It is easy to begin to think negatively when you are surrounded by people who think that way.可知你的周围是消极的人,你就会感到消极,从中可知情感是传染的,是会受周围的人的情绪影响的.故选B.
38.答案:E.根据These few minutes will give you the opportunity可知遇到麻烦,要花几分钟考虑一下,故选E.
39.答案:G.根据treat yourself to lunch,take a long,relaxing bath or simply spend a few extra minutes on your appearance,可知每天花时间做一些让自己心情好起来的事情,故选G.
40.答案:C.根据Keeping healthy is another way to achieve happiness.健康能让人的情绪好,因此吃些不健康的事物会让人情绪不好.故选C.