Owering the Risk of Heart Disease

Like millions of other Americans, I come from a family with a history of the heart disease. My father had his first three heart attacks when he was only thirty-one. I was three years old at that time. I grew up with heart disease. It was there, but I didn’t take it seriously.

When I was thirty-one, my blood cholesterol(膽固醇)level was measured for the first time. It was 311 mg/dl, the doctor told me an extremely high level that put me at a very high risk of heart disease, especially with my family history. He sent me to the National Institutes of Health(NIH)to be screened for participation in a clinical trial. The trial was designed to test the effect of lowering blood cholesterol on the risk of heart disease.

At NIH, physicians explained the degree of risk associated with my blood cholesterol level and the nature of the experiment. This test involves putting a tube through a leg artery(動脈) up to the heart. The death rate for the test was only 1 in 100, I was assured.

Learning about the risks of the experiment as well as the risk associated with my raised blood cholesterol level scared the life out of me. Although I was excluded from participating in the study, the experience may well have saved my life.

For the first time, I began to realize the seriousness of high blood cholesterol. It was a heart attack just waiting to happen. But equally important, I got a taste of what it is like to be a patient, to have tests done on me and to think of myself as sick. This was hard to take.

This experience taught me two lifesaving lessons. First, although I felt fit and strong, I was actually at high risk for heart disease because of my high blood cholesterol level. And with my family history, it could not be ignored. Second, I could lower my blood cholesterol level simply by changing what I ate.

36.The writer had heart disease because

A.he was hurt when he was young.

B.his father had heart disease.

C.he didn’t know how to take care of himself.

D.he suffered another serious disease.

正確答案：B

解析：問題問的是：作者為什么患有心臟疾病?根據(jù)第一段I come from a family with a history of the heart disease. 可知作者的心臟病是遺傳的，所以選B。.

37.Which of the following statements is NOT true

A.The write had never measured his blood cholesterol before thirty-one.

B.The writer was told by the doctor that he was at high risk of heart disease.

C.The writer had a family history of heart disease.

D.The writer was at risk of heart disease just because of his family history.

正確答案：D

解析：問題問的是：以下說法哪個是不正確的?A說作者在31歲之前沒有測量過血液中的膽固醇含量，根據(jù)第二段的第一句可知該選項是正確的。B說醫(yī)生說作者患心臟疾病的風險很高，根據(jù)第二段的第二句可知該選項是正確的。C說作者的心臟疾病有家族史，第一段已經(jīng)說明了這個事實，所以是正確的。D說作者患心臟病的風險很高僅僅是因為家族史，這個判斷是錯誤的，因為第二段的第二句提到作者的血液中膽固醇含量高和家族史會導致其患上心臟疾病。

38.What did the doctor ask the wrier to do

A.To go to the National Institutes of Health to participate in clinical trial.

B.To put a tube through a leg artery up to the heart.

C.To go to bed on time every day.

D.To eat less and do exercises every day.

正確答案：A

解析：問題問的是：醫(yī)生讓作者去做什么?根據(jù)第二段He sent me to the National Institutes of Health(NIH)to be screened for participation in a clinical trial. 可知A是答案。

39.What did the writer know from his experience

A.He should never participate in such a fatal clinical trial.

B.He was at high risk of heart disease although he was fit and strong.

C.He was doomed to have heart disease because of his family history.

D.Nothing could help him out the trouble except for participating in the trial.

正確答案：B

解析：問題問的是：作者從他的經(jīng)歷中了解了什么?文章的最后一段提到作者從他的經(jīng)歷中得到了兩個能挽救其生命的信息，其一是雖然自己覺得強壯，但是仍然有患心臟病的風險，因為他血液中膽固醇含量過高并且有家族史;其二就是他可以通過改變飲食結(jié)構(gòu)來降低膽固醇的含量，所以B是正確的答案。

40.How could the writer lower his blood cholesterol level

A.By eating less .

B.By realizing the risk of heart disease.

C.By putting a tube through a leg artery up to the heart.

D.By changing diet.

正確答案：D

解析：問題問的是：作者怎樣降低血液中的膽固醇含量？文章的最后一句已經(jīng)提到可以通過改變飲食結(jié)構(gòu)來解決這個問題，所以答案是D。

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