练习：
1. Paragraph 2
2. Paragraph 3
3. Paragraph 5
4. Paragraph 6
A Effects of napping in females still uncertain B Older males have higher levels of NT-proBNP C Development of a simple but important test D Evidence of positive relationship between napping and heart disease E How to control the levels of NT-proBNP F Effects of NT-proBNP on heart disease |
5. According to some researchers, by measuring the levels of NT-proBNP in the blood people may know
6. If a person has a high level of NT-proBNP
7. People who take regular afternoon naps
8. So far there have not been definite data to confirm
A where fewer people die from heart problem. B whether they have the risk of heart attack, heart failure or stroke. C would probably have lower rates of heart disease. D how to test a person’s NT-proBNP level in the blood by himself. E his heart muscle would be under pressure in some way. D that napping is of great benefit to women too. |
答案与题解：
1. F 本段后面两句说到，通过检查心脏病人的NT-proBNP水平，发现水平最高的病人与水平最低的病人之间患心脏病的可能性相差近八倍。
2. B 本段说到，他们所查的是男性，并发现老年男性且患有糖尿病和高血压者NT-proBNP的水平最高。
3. D 本段说到，地中海国家的成年人普遍都有午睡，而且患心脏病的比率较低。哈佛大学和雅典大学的研究证明，每周午睡三次、每次30分钟的人比完全不午睡的人死于心脏病的比率少37%。
4. A 最后一段说，午睡对工作的男性尤其有益，虽然调查时死亡的女性并不多，但午睡对女性的益处文章并没有给出一个明确结论。
5. B 答案来源于第一段的第二、三句。
6. E 答案来源于第三段第一句。
7. C 答案来源于第五段第三、四句和该段最后一句。
8. F 答案来源于第三段第二句和文章的最后一句v。
