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。
When we think about happiness, we usually think of something extraordinary, a pinnacle (顶点) of sheer (纯粹的) delight. And those pinnacles seem to get rarer the older we get.
1 I remember playing police and robbers in the woods, getting a speaking part in the school play. Of course, kids also experience lows, but their delight at such peaks of pleasure as winning a race or getting a new bike is unreserved.
For teenagers, or people under 20 the concept of happiness changes. 2 I can still feel the pain of not being invited to a party that almost everyone else was going to. I also remember the great happiness of being invited at another event to dance with a very handsome young man.
In adulthood the things that bring great joy—birth, love, marriage—also bring responsibility and the risk of loss. 3 For adults, happiness is plex.
4 But I think a better definition of happiness is “ the ability to enjoy something”. The more we can enjoy what we have, the happier we are. It's easy to overlook the pleasure we get from loving and being loved, the pany of friends, the freedom to live where we please, even good health.
While happiness may be more plex for us, the solution is the same as ever. Happiness isn't about what happens to us; it’s the ability to find a positive for every negative, and view a difficulty as a challenge. 5 A．Love may not last; loved ones die.B．For a child, happiness has a magic quality.C．Happiness is the meaning and the purpose of life.D．Being happy doesn’t mean that everything is perfect.E. The dictionary defines “happy” as “lucky” or “ fortunate”.
F. It's not wishing for what we don't have, but enjoying what we do possess.
G. Suddenly it’s conditional on such things as excitement, love, and popularity.B
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(答案→)B
解析：本文从多种角度，不同的年龄段解释了幸福的概念。
【小题1】B 根据下一段For teenagers已经本段第2行kids also experience lows说明本段谈论的是对于孩子来说，幸福的含义。故B下符合上下文。
【小题2】G 根据前句For teenagers, or people under 20 the concept of happiness changes说明对于20岁以下的年轻人，幸福的含义已经发生了变化，变成了爱，流行和兴奋，故G项正确。
【小题3】A 对于成年人来说能带领快乐的东西也能带领痛苦，接上句bring great joy—birth, love, marriage—also bring responsibility and the risk of loss.说明A项爱不会持久，爱的人也可能死亡，说明A项与上句相符。
【小题4】E 根据上句happiness is plex幸福是一种很复杂的概念，接下来的E项符合上下文，字典中的幸福就是开心，幸运的意思。根据后半句，我所理解的幸福是…说明E项符合上下文。
【小题5】F 根据上句it’s the ability to find a positive for every negative, and view a difficulty as a challenge.说明幸福是一个从消极的，有挑战性的东西中找到积极的东西的能力，故F项幸福不是希望得到我们没有的，而是享受我们所拥有的。故F项与上下文相符。