阅读下面短文,掌握大意,然后从A、B、C、D四个选项中选出最佳选项。
One day, a teacher came into her classroom with a glass of water. She wanted to explain stress(压力) management to her students. She asked them how 1the glass of water was. They gave many 2 answers. Some students said it weighed 200 grams, while others 3 said they didn't know. She smiled and 4, "Actually, the weight of the glass doesn't matter. It depends on the 5 . If I hold it for a minute, it's not a problem. If I hold it for an hour, I'll have an ache in my 6. If I hold it for a day, I'll have to call an ambulance (救护车). In each case, the glass of water is the same weight, but the 7 I hold it, the heavier it becomes."
Lost in thought, all the students kept 8 and listened to the teacher carefully.
The teacher continued, "Our stresses and worries in life are the same as that glass of water. If we carry 9 all the time, we will soon feel tired as if the weight is 10. We will not be able to move on. Just 11 putting down this glass of water, you have toput your stress down for a while and take a rest. When we're not tired, we can 12 our
burdens(负担) -- holding them more easily each time."
More often than not, life gets terrible when we 13 too much. And the moment you let go of your burdens, you'll find yourself feeling so much more 14.
So, 15 being upset and feeling sorry for yourself, start doing something about it. After all, life is too short to give yourself up to anything that is not making you happy.