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Can you imagine that you can save your own life during a heart attack by coughing? Let's see how ...
A heart attack can happen to anyone. Let's say it's 4：17 pm and you're driving home (alone of course) after an unusually hard day on the job. Not only was the workload extremely heavy, but you also had a disagreement with your boss, and no matter how hard you tried, he just wouldn't see your side of the situation. You're really upset and the more you think about it, the more nervous you become.
All of a sudden you start experiencing severe pain in your chest that starts to spread out into your arm and up to your jaw (下巴).You are only about five miles from the hospital nearest your home, but unfortunately you don't know if you'll be able to make it that far.
What can you do? You've been trained in CPR but the guy who taught the course didn't tell you how to perform it on yourself.
Since many people are alone when they suffer a heart attack, this article seems in order. Without help the person whose heart stops beating properly and who begins to feel faint (眩晕的) has only about 10 seconds left before losing consciousness. However, these victims can help themselves by coughing repeatedly and very powerfully. A deep breath should be taken before each cough, and the cough must be deep and last long, as when producing sputum (痰) from deep inside the chest. A breath and a cough must be repeated about every two seconds without stopping until help arrives, or until the heart feels to be beating normally again. Deep breaths get oxygen into the lungs (肺) and coughing movements squeeze the heart and keep the blood circulating.
The squeezing pressure on the heart also helps it regain normal rhythm. In this way, heart attack victims can get to a phone and, between breaths, call for help.
Now, do you understand the whole matter? Tell as many other people as possible about this. It could save their lives!
语篇解读：本文是一篇说明文。文章主要介绍了在心脏病发作时如何利用咳嗽自救。
1．According to the passage, CPR is most probably something done to .
A．regain someone's breath and heart beat
B．help someone treat a heart attack by himself
C．teach people how to stay in good state
D．train people how to stay calm when facing dangers
解析：选A 推理判断题。由文章和常识可知，心脏病发作时会呼吸困难，心跳可能会停止，再结合第四段中的You've been trained in CPR but the guy who taught the course didn't tell you how to perform it on yourself.可以推测CPR是帮助患者重获呼吸和心跳的急救措施。
2．According to Paragraph 5, coughing during a heart attack helps .
A．to relax the heart
B．to get oxygen into the lungs
C．to keep the blood circulating
D．to reduce the pain in the chest
解析：选C 细节理解题。由第五段最后一句中的coughing movements squeeze the heart and keep the blood circulating可知C项正确。
3．We can learn from the passage that .
A．a long day's work usually results in heart attacks
B．not only the chest aches when one suffers a heart attack
C．people should attend a CPR course to survive heart attacks
D．one should cough loudly immediately when one's chest aches
解析：选B 细节理解题。由第三段中的All of a sudden you start experiencing severe pain in your chest that starts to spread out into your arm and up to your jaw(下巴).可知，心脏病发作时除胸口会痛外，手臂和下巴也会痛。
4．In which section of a newspaper can you read this passage?
A．Health Care. B．Advertisement.
C．Family. D．Teaching.
解析：选A 文章出处题。本文介绍的是医学常识，由此可以推断其应出现在医疗保健的版面上。
