首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
A、Because some people don’t think they need the sun to get vitamin D. B、Because it’s an example of an evolutionary compromise. C
A、Because some people don’t think they need the sun to get vitamin D. B、Because it’s an example of an evolutionary compromise. C
admin
2017-02-25
54
问题
M: Can wearing sun glasses make you more vulnerable to sunburn? Are there people who can resist the AIDS virus better than others? Can a human body rust to death? In his new book Survival of the Sickest, a Medical Maverick discovers why we need disease. Sharon Moalem explores these and other medical mysteries. Sharon, nice to see you, good morning. Let me dare say, you are an evolutionary biologist and a neural geneticist.
W: That’s right.
M: What is that and why does it make you look at things from different points of view?
W: Well, the evolutionary biologist part, it allows me to understand how our ancestors essentially influence who we are today. So whatever they experienced, be it a plague or a climate change, they adapted, they survived, and they passed down those adaptations to us like skin color or disease.
M: So let’s take a look at this question of "is it possible for people to actually rust to death?" Medically speaking, is it possible?
W: Yes, thank you for asking that question. Ah, it is. Over a million Americans might be at risk from too much iron. (1)Today you absorb too much iron from the diet, and it essentially gets into certain organs and over time can rust them. So if it’s in the liver, it can cause liver cancer.
M: You actually suffer from this.
W: Right.
M: So, this, and the treatment for this sounds a bit barbaric.
W: Well, it’s amazing actually. (2)It’s a simple blood donation.
M: But it’s basically bleeding someway.
W: Right.
M: Well, you’re getting rid of the iron-rich blood so that it can build up slowly again over time.
W: Right.
M: Alright. The second idea, sun exposure, skin disease experts everywhere are gonna be shocked when they hear this, because they say "stay out of the sun, no matter what". And you say "a certain amount of sun exposure actually can make us healthier".
W: (3)Right, essentially, we need vitamin D, so we evolve to convert cholesterol into vitamin D. Those are a few steps to get it and Vitamin D is not just good for the bone, it’s good for the immune system. So take African-Americans for example, who live in the northeastern United States, they’re at higher risk for prostate cancer than their cousins in Florida. And the reason for this is they don’t get enough sun.
M: (4)And another example: the cholesterol levels in people tend to go up in the winter.
W: That’s right.
M: (4)Because you’re not breaking down the cholesterol into vitamin D in the same levels.
W: Exactly.
M: Alright. But this is very individual. You shouldn’t just tell everybody "go out and get in the sun".
W: Oh, no, no. (5)And again this is an example of an evolutionary compromise. You shouldn’t get too much sun, but you still need the sun.
1. Why is it possible for people to rust to death?
2. What is the treatment of diseases related to rusting?
3. Why does Sharon think moderate sun exposure makes people healthier?
4.Why are people likely to have a higher cholesterol level in winter?
5. Why shouldn’t everybody go out and get in the sun?
选项
A、Because some people don’t think they need the sun to get vitamin D.
B、Because it’s an example of an evolutionary compromise.
C、Because someone has got too much sun.
D、Because some people think they are healthy enough.
答案
B
解析
对话中主持人指出一般在冬天胆固醇不会达到阳光充足时的水平后,接着说但这种情况要视具体情况而定,而Sharon回答说这是一种“进化妥协现象”(evolutionary compromise)。因此选择B。选项A,B,C在听力原文中未提及,可排除。
转载请注明原文地址:https://kaotiyun.com/show/Kd7O777K
0
专业英语八级
相关试题推荐
WhatarethemostimportantnaturalresourcesinCanada?
Speechacttheoryisanimportanttheoryinthe______studyoflanguage.
UnderstandingAcademicLecturesListeningtoacademiclecturesisanimportanttaskforuniversitystudents.Then,howcan
WordsworthisthechiefrepresentativeofsomeofthemostimportantprinciplesintheRomanticMovement;butheisfarmoretha
______gotAmericanoutoftheGreatDepression.
AgroupofthetownspeoplestoodonthestationsidingofalittleKansastown,awaitingthecomingofthenighttrain,whichwa
Virtuallyeverydayoftheyearseesanotherartbiennialopeningsomewhereintheworld.Theroleoftheseexhibitionsistosh
Virtuallyeverydayoftheyearseesanotherartbiennialopeningsomewhereintheworld.Theroleoftheseexhibitionsistosh
我不敢说生命是什么,我只能说生命像什么。生命像向东流的一江春水,他从最高处发源,冰雪是他的前身。他聚集起许多细流,合成一股有力的洪涛,向下奔注,他曲折的穿过了悬崖峭壁,冲倒了层沙积土,挟卷着滚滚的沙石,快乐勇敢地流走,一路上他享受着他所遭遇的一切
Virtuallyeverydayoftheyearseesanotherartbiennialopeningsomewhereintheworld.Theroleoftheseexhibitionsistosh
随机试题
46岁女性,高血压史10年,突然出现说话声音不清,吞咽困难2天,查体:右侧中枢性面舌瘫,右手无力,右手指鼻不准。MRI示左侧脑桥点状长T1长T2信号
在炼制过程中出现鱼眼泡可判断为两指分开指间拉出长白丝可判断为
某大型水电站工地,施工单位A在重力坝浇筑过程中,管理人员只在作业现场的危险区悬挂了警示牌,夜间施工时,却发生了高空坠落死亡3人的事故。工程建设期间,还时常发生当地群众到建设管理单位及施工工地大量聚集事件。当工程某隐蔽部位的一道工序施工结束,在未通知监理人员
将献哈达作为一种高贵礼节的民族有()
Whencheckingstudents’understandingofacertainlanguagepointinclass,whichoffollowingutterancesisateacherexpected
官渡之战和赤壁之战的相同点有()。①东汉末年的军阀割据混战②以少胜多的战役③都是以曹操胜利而结束
解答问题时,小明倾向于深思熟虑,且错误较少,则他的认知方式为()。
智力评估可采用多种手段,但最重要的是()。
A、 B、 C、 B
TheFatheringGap:PitfallsofModernFatherhoodFather’sDay,whichwasinventedbyawoman,usedtobeadaywhenthememb
最新回复
(
0
)