12.No one would much like the idea of eating 61pounds of tomatoes a day.But if their goodness was put into an easy-to-swallow pill that you were told might prevent strokes(中風(fēng)) and heart attacks you would probably be putting in an order tomorrow.
Researchers believe they may have come up with just that after trials.The daily pill contains a chemical called lycopene which makes tomatoes red and is known to break down fat in the vessels(血管).A Cambridge University study found taking the pills improved blood flow and the ining of vessels in patients with pre-existing heart conditions.It also increased the flexibility(靈活性) of their vessels by 50percent.The scientists believe it could limit the damage caused by heart disease-responsible for 180,000deaths a year-and help cut the 49,000deaths a year from strokes.They also hope it could benefit those with arthritis(關(guān)節(jié)炎),diabetes(糖尿。 and even slow the progress of cancer.
Each pill is equal to eating around 61pounds of ripe tomatoes.Studies have shown eating a Mediterranean-style diet rich in tomatoes fish,vegetables,nuts and olive oil can significantly reduce cholesterol(膽固醇) and help prevent cardiovascular disease.
Preliminary results from a to-month trial,in which the pill was given to 36heart disease patients and 36healthy volunteers with an average age of 67,were presented at a meeting of the American Heart Association.It was shown to improve the function of the endothelium-the layer of cells lining blood vessels.It also improved their sensitivity to nitric oxide,the gas which causes the enlargement of the vessels in response to exercise.
Ian Wilkinson,head of Cambridge University's clinical trials unit,said"These results are potentially very significant and it meets the goal,but we need more trials to see if they translate into fewer heart attacks and strokes."
Further studies are planned,with researchers hoping it could offer a choice for heart disease sufferers who can not take the cholesterol-lowing drugs.
Mike Knapton,head of the British Heart Foundation,said,"Although this showed lycopene improved blood flow in people with heart disease,that's a long way from demonstrating that taking it could improve outcomes for people with heart disease.The best way to get the benefits of a good diet is to eat plenty of fresh fruit and vegetables."
32.What can we infer from Paragraph 1?B
A.We can eat too much tomato food.
B.Tomatoes are helpful to strokes and heart attacks.
C.Tomatoes will lose healthy elements were put into pills.
D.We had better not eat tomatoes.
33.We can learn from the passage that the pillsA.
A.a(chǎn)re at the experiment stage
B.can cure all the disease
C.a(chǎn)re widely used among patients
D.cost patients so little money
34.Who were the volunteers by taking part in the trial?D
A.Children.
B.Youth.
C.Working people.
D.Old healthy people.
35.What was Ian Wilkinson's opinion on the trial?C
A.Disappointing.
B.Surprising.
C.Satisfactory.
D.Terrible.

分析 本文是一篇科教類(lèi)閱讀,屬于說(shuō)明文,西紅柿有助于預(yù)防中風(fēng)和心臟病,本文以此展開(kāi)講述,圍繞一項(xiàng)研究展開(kāi)討論,研究發(fā)現(xiàn),雖然這表明番茄紅素能改善心臟病患者的血液流動(dòng),但是從證明可以改善患有心臟病的患者的結(jié)果來(lái)說(shuō),有很長(zhǎng)的路要走.獲得良好飲食效果的最佳途徑是吃大量的新鮮水果,蔬菜.

解答 32.B.細(xì)節(jié)理解題.根據(jù)第一段中"that you were told might prevent strokes(中風(fēng)) and heart attacks"可知,西紅柿有助于預(yù)防中風(fēng)和心臟病,故選B項(xiàng).
33.A.細(xì)節(jié)理解題.根據(jù)第二段中"Researchers believe they may have come up with just that after trials."及倒數(shù)第三段中"but we need more trials to see if they translate into fewer heart attacks and strokes."可知這種藥片還處于試驗(yàn)階段,故選A項(xiàng).
34.D.細(xì)節(jié)理解題.根據(jù)第四段中"in which the pill was given to 36 heart disease patients and 36 healthy volunteers with an average age of 67."可知,志愿者是健康的老人.故選D項(xiàng).
35.C.推理判斷題.根據(jù)倒數(shù)第三段中"These results are potentially very significant and it meets the goal,"可知Ian Wilkinson對(duì)于試驗(yàn)結(jié)果很滿(mǎn)意,故選C項(xiàng).

點(diǎn)評(píng) 本文是一篇科教類(lèi)閱讀,題目涉及多道細(xì)節(jié)理解題,推理判斷題.做題時(shí)學(xué)生應(yīng)仔細(xì)閱讀原文,把握文章主要內(nèi)容,聯(lián)系文章上下文內(nèi)容并結(jié)合所給選項(xiàng)含義,從中選出正確答案,一定要做到有理有據(jù),切忌胡亂猜測(cè)

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