吃巧克力可以降低心臟病發(fā)作的風(fēng)險(xiǎn)

劉小軍

新的研究表明，適量食用巧克力有利于減少炎癥，促進(jìn)血液流動，從而強(qiáng)化心臟功能，促進(jìn)我們的健康。

1. inflammation /nflmen/ n. 炎癥

2. vessel /vesl/ n. 血管

3. coronary artery 冠狀動脈

4. high-density lipoprotein 高密度脂蛋白

5. overeat /vrit/ v. 過量食用;暴飲暴食

Chocolate is packed with plant chemicals that weaken inflammation and boost blood flow， explained scientists.

Lead author Dr Chayakrit Krittanawong said， “Our study suggests chocolate helps keep the heart's blood vessels healthy.” It collected data from six trials that examined the link over the past five decades. A total of 336，289 people reported their intake. Those who ate chocolate more than once a week reduced their risk of coronary artery disease by eight percent. This was compared to peers who ate it less than once a week.

Chocolate is known to produce the same chemical in the brain as falling in love. But evidence is growing that its reputation as a “guilty pleasure” is wrong. Dr Krittanawong said， “Chocolate contains heart healthy nutrients such as flavonoids， methylxanthines， polyphenols and stearic acid which may reduce inflammation.”

Known medically as HDL （high-density lipoprotein）， it helps to rid LDL （low-density lipoprotein） out of the body. When this collects it causes vessels and arteries to become blocked up. It can stop blood flow to the heart or brain， causing a heart attack or a stroke. Dr Krittana-wong said， “In the past， clinical studies have shown chocolate is beneficial to blood pressure.”

Dark chocolate has long been known to have health benefits but recent research has suggested milk chocolate may also provide valuable nutrients for the heart. Dr Krittanawong pointed out his study did not investigate whether any particular type of chocolate is more beneficial—or if there is an ideal portion size. He said， “Chocolate appears promising for prevention of coronary artery disease. But more research is needed to show how much and what kind of chocolate could be recommended.”

While it's not clear how much is perfect， Dr Krittanawong warned against overeating. He said， “Moderate amounts of chocolate seem to protect the coronary arteries but it's likely that large quantities do not.”

1. What does paragraph 2 mainly talk about？

A. The result of the study.

B. The process of the study.

C. The participants of the study.

D. The intention of the study.

2. Which of the following can probably prevent blood flow？

A. A heart attack.

B. A stroke.

C. High-density lipoprotein.

D. Low-density lipoprotein.

3. What does the recent study tell us？

A. Chocolate is good for blood pressure.

B. Dark chocolate is beneficial to health.

C. Milk chocolate may also benefit the heart.

D. Chocolate contains special plant chemicals.

4. What's Dr Krittanawong's attitude toward cho-colate's preventing coronary artery disease？

A. Cautious.

B. Hopeful.

C. Negative.

D. Uncertain.

Difficult sentence

Dark chocolate has long been known to have health benefits but recent research has suggested milk chocolate may also provide valuable nutrients for the heart.

【翻譯】

【點(diǎn)石成金】本句是由but連接的兩個(gè)并列句，其中suggest后面是一個(gè)省略了that的賓語從句。