The findings could lead to a better understanding of what triggers(触发，激起)heart attacks, according to Dr. Stefan Willich. “We know a lot about long-term risk factors such as smoking and cholesterol(胆固醇)but we don’t know what actually triggers heart attacks, so we can't make specific recommendations about how to prevent them,” he said.However, he suggests that anyone who suffers from heart disease should take it easy on Monday mornings and leave potentially stressful meetings until midweek.

　31. What is the main idea of the passage?

　　A.Monday morning is always painful.

　　B.Monday morning triggers heart attack.

　　C.There are more heart attacks on Monday mornings.

　　D.There is more stress on Monday mornings.

　　答案：C

　　[解析]此题是要旨题，提问的是文章的中心大意。要旨题的目的在于考查学生对文章中心思想的理解程度和区别主要信息和次要信息的能力。要旨是一篇文章的核心，是作者写作意图的体现，其表现形式因体裁不同而不同。就自学考试而言，文章的要旨通常以主题句的形式出现，并且文章的主题句通常出现在文章的开头部分。本文就属此类文章。本文的主题句出现在第一段第二句话，故C是正确答案。

　　32.Who are more likely to have heart attacks on Monday mornings according to the study?

　　A.researchers

　　B.Italians

　　C.non-workers

　　D.working Germans

　　答案：D

　　[解析]这是一个细节理解题，答案可以从文中第二段直接找到。作者在第二段中具体介绍了研究的结果。研究的对象是德国人和意大利人，研究表明，工作的德国人在周一心脏病的发作机率是最高的，不工作的德国人周一和平时没有什么不同;对意大利人的研究指出周一早上八点是最危险的时间点。由此可知，D为正确答案。

　　33.Which of the following is true according to the passage?

　　A.The risk of having heart attacks on Monday mornings is the same as on any other day of the week to non-workers

　　B.33% of the Germans have heart diseases, therefore heart attacks are more common in Germany than in any other country.

　　C.20%of the Italians appear to have higher possibility of having heart attacks.

　　D.Non-smokers are more likely to have heart attacks on Sundays.

　　答案：A

　　[解析]这是一个细节判断题，此题依据是第二段中的一句话“Non-workers,by comparison, appear to be no more at risk on a Monday than any other day.”，此句意思是：比较而言，对不工作的人来说，周一不比其它日子更危险。

　　34.What can be inferred from the study?

　　A.The study shows that Monday mornings are usually more stressful than any other day of the week.

　　B.The findings indicate that it is the Monday morning stress that triggers the heart attack.

　　C.The study shows that diet and lifestyle would not affect the height of heart attacks on Monday mornings.

　　D.The findings indicate that the number of heart attacks on Monday mornings is different in different countries.

　　答案：C