题目内容
14.Starting the day on an egg could keep your blood pressure (血压) under control,research suggests.Scientists have shown that eggs produce proteins with a function similar to that of powerful blood pressurelowering 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 used to treat heart disease,but more work is needed to show the effects outside a lab and in the human body.
Earlier this month,British researchers declared that,opposite 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 has dropped its threeeggaweek limit.However,almost half of Britons believe the limit still applies.
32.From the text we know that"ACE inhibitors"areC.
A.a kind of protein
B.a kind of illness
C.a kind of medicine
D.a kind of food
33.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
34.We can infer from the text thatD.
A.drugs to lower blood pressure will be replaced by eating eggs
B.stomach enzymes mixed with eggs can cure heart diseases
C.there is relatively quite a little cholesterol found in eggs
D.about 50% of Britons think eating an egg a day is bad for their health
35.The text is meantA.
A.to introduce scientific findings about eggs
B.to report a medicine made from eggs
C.to tell people how to lower their blood pressure
D.to advise people to eat as many eggs as possible.
分析 本文主要介绍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 32-35 CBDA
32.C 推理判断题.根据第一段Scientists have shown that eggs produce proteins with a function similar to that of powerful blood pressurelowering drugs可知,科学家们证明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.故选C.
33.B 细节理解题.根据倒数第二段最后一句They can be encouraged to include them in a healthy diet as they are one of nature's most nutritious foods可知,鼓励公众把鸡蛋包括在健康包含中因为它们是最富营养的食物之一,即:Bruce教授认为鸡蛋属于健康食物.故选B.
34.D 推理判断题.最后一段的最后一句However,almost half of Britons believe the limit still applies可知,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.故选D.
35.A 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.故选A.
点评 高考中选用的科技文往往反映的是当今人类最先进的科技水平和最新的科研成果.我们阅读它的过程其实就是学习科学知识,掌握科技信息的过程.然后,理解文章,分析文章,以阅读材料所提供的科学事实为依据,同时得出的结论还应符合基本的科普常识,在细心对照基础上,经过一番分析、综合,然后就要根据题目要求对选项作出正确判断了,这些判断包括选项的表达是否符合原文的意思,对概念,文句的理解是否正确,对要点归纳是否全面等,从而排除错误选项,选择最合适的答案.
-Really?If I ________ so busy,I would have shopped for fun too.( )
A. | shouldn't be | B. | weren't | C. | hadn't been | D. | wouldn't be |
A. | Absorbed | B. | Having absorbed | C. | Absorbing | D. | Being absorbed |