听力原文:Stress is a very normal part of life. Most people feel stress at some time in the

听力原文： Stress is a very normal part of life. Most people feel stress at some time in their lives. It doesn"t come from an event itself, that is, from the things that are happening in our lives. It comes from the meaning we give to what has happened. We can experience stress any time we feel we don"t have control. It can come from a feeling that we can do anything about a situation.

Stress is not just caused by our mental or emotional condition. It is also influenced by how tired we are, whether we have a balanced diet with enough vitamins and minerals, whether we get enough physical exercise and whether we can relax. If we feel stressed, there are several things that we can do. First, we need to learn how to relax and breathe slowly and smoothly.

We can also take some time out of our worried, busy schedule to notice the small things in life. Smell the air, look at the flowers, notice the small designs in the leaves on a tree -- these activities can do much to quiet us and to give ourselves a small break in a busy schedule.

We need to take care of our bodies. Being tired makes it easier for us to get sick and to develop physical problems related to stress. We need to get enough rest, eat well, and do some regular exercise.

Finally, we need to find what is causing the stress in our lives. Once we have found it, we need to begin to change that part of our lives. If we believe that we can control stress, we can begin to control our lives.

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A．An unexpected event.

B．The understanding to an event.

C．The things that happen in our lives.

D．The influence of others.

请帮忙给出正确答案和分析，谢谢！