首页
登录
职称英语
[originaltext]M: Can wearing sun glasses make you more vulnerable to sunburn? A
[originaltext]M: Can wearing sun glasses make you more vulnerable to sunburn? A
游客
2024-11-11
25
管理
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. 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. 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: 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: And another example: the cholesterol levels in people tend to go up in the winter.
W: That’s right.
M: 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. 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、They tend to take in less vitamin D in that season.
B、They do less exercise and become weaker than usual.
C、They need to eat much more greasy food to keep warm.
D、They get less sun to convert cholesterol into vitamin D.
答案
D
解析
Sharon在说明适量晒太阳的好处时,指出我们需要维生维D,而阳光有助于将胆固醇转化为维生素D。她进而举例说冬天人们的胆固醇水平一般会升高,可见,冬天由于人们日晒少,胆固醇较难转化为维生素D,因此D项为正确答案。其他三项在听力中未提及,可排除。
转载请注明原文地址:https://tihaiku.com/zcyy/3840737.html
相关试题推荐
[originaltext]M:Heyhoney,(1)wheredoyouthinkweshouldgoforourhoneymo
[originaltext]M:(6-1)Doyoufeelthatmanypeople,menandwomen,notonlyco
[originaltext]M:Whencouplesgetmarried,theyoftenpromisetolove,honoran
[originaltext]M:Whencouplesgetmarried,theyoftenpromisetolove,honoran
[originaltext]W:Bytheway,inyourbook,youalsosaywomenaresuperiorinb
[originaltext]W:Bytheway,inyourbook,youalsosaywomenaresuperiorinb
[originaltext]W:Bytheway,inyourbook,youalsosaywomenaresuperiorinb
[originaltext]W:Bytheway,inyourbook,youalsosaywomenaresuperiorinb
[originaltext]M:Goodtoseeyou.W:(3-1)"Whynotme?"Howdidyoucomeupwi
[originaltext]M:Goodtoseeyou.W:(3-1)"Whynotme?"Howdidyoucomeupwi
随机试题
Pedrowasawonderfulpersonamongallthepeopleoftheranch.Besidesb
(1)Youshouldtreatskepticallytheloudcriesnowcomingfromcollegesand
Inrecentdecadeschildspecialistshavetriedmoreandmoretohelpparent
体育课程标准将中小学学生的学习划分为六个学习水平,并在各学习领域按学习水平设置了
2014年1~9月我国入境外国游客中,来自亚洲1182.9万人,其中男性785.
工程成本控制的主要对象是主要费用中的( )。A、人工费用 B、固定费用
非执政党和非国家机关对行政行为的监督称为()。A.社会监督 B.事前监督 C
A.(3.0~12.0)×10/L B.(4.0~10.0)×10/L C.
单元格的数据格式一旦选定后,不可以再改变。()
下列关于工程进度款的说法正确的是( )。A.进度款支付周期,应与合同约定的工程
最新回复
(
0
)