3.Starting the day on an egg could keep your blood pressure under control,research suggests.Scientists have shown that eggs produce proteins with a function similar to that of powerful blood pressure-lowering drugs.
The research,from the University of Alberta in Canada,showed that when eggs come in contact with stomach enzymes (酶) they produce a protein that acts in the same way as Ace inhibitors,but more work is needed to show the effects outside a lab and in the human body.
Earlier this month,British researchers declared that,contrary to popular beliefs,it is healthy to go to work on an egg.They concluded that the type of cholesterol (胆固醇) found in eggs has little effect on increasing heart disease risks.
Researcher Professor Bruce Griffin,from the University of Surrey,said,"The wrong beliefs linking egg eating to high blood cholesterol and heart disease must be corrected.The amount of fat in our diet has an effect on blood cholesterol that is several times greater than the relatively small amounts of cholesterol found in eggs.The UK public do not need to be limiting the number of eggs they eat.They can be encouraged to include them in a healthy diet as they are one of nature's most nutritious foods."
The British Heart Foundation dropped its three-egg-a-week limit in 2005.However,almost half of Britons believe the limit still applies.
73.From the text we know that Ace inhibitors areC.
A.a kind of protein
B.a kind of food
C.a kind of medicine
D.a kind of illness
74.According to what Professor Bruce said,eggsB.
A.are the most nutritious food
B.can be included in a healthy diet
C.have no effect on blood cholesterol
D.are forbidden to be eaten in the UK
75.We can infer from the text thatD.
A.stomach enzymes mixed with eggs can cure heart diseases
B.drugs to lower blood pressure will be replaced by eating eggs
C.most Britons agree the three-egg-a-week limit should be dropped
D.about 50% of Britons think eating an egg a day is bad for their health
76.The text is meantB.
A.to introduce a medicine made from eggs
B.to introduce scientific findings about eggs
C.to tell people how to lower their blood pressure
D.to advise people to eat as many eggs as possible.
分析 研究发现,每天吃一个鸡蛋对降低血压大有裨益,鸡蛋与胃酶结合后产生的蛋白质与降压药物有着同样的功效.
解答 73.C 推理判断题.第一段的后半部分提到鸡蛋产生蛋白质的作用与强效降血压药物类似,此处与之相呼应,表示鸡蛋与胃酶结合后产生蛋白质的作用与药物相当.由此可推知"ACE inhibitors"是一种药.
74.B 细节理解题.根据倒数第二段最后一句的内容可知,Bruce教授认为鸡蛋属于健康食物.
75.D 推理判断题.最后一段的最后一句提到几乎一半的英国人相信对鸡蛋的限制仍然适用,由此可推断这些人依旧认为每天吃一个鸡蛋对健康有害.
76.B 主旨大意题.本文是一篇研究报告,第一段是文章的中心段,通读全文可知,本文意在介绍关于鸡蛋的科学发现.
点评 做这类题材阅读理解时要求考生对文章通读一遍,做题时结合原文和题目有针对性的找出相关语句进行仔细分析,结合选项选出正确答案.推理判断题也是要在抓住关键句子的基础上合理的分析才能得出正确答案,切忌胡乱猜测,一定要做到有理有据.