首页
登录
职称英语
[originaltext] How long can a human survive without food or water? In theory
[originaltext] How long can a human survive without food or water? In theory
游客
2024-04-16
9
管理
问题
How long can a human survive without food or water? In theory, when you finally run out of body fat, protein and carbohydrates, your body runs out of energy and stops functioning. Jeremy Powell-Tuck, a retired clinician who fed David Blaine after his starvation stunt in London in 2003, isn’t so sure that this is the lethal point. "You’re more likely to die before then," he says.(20)Fat people would only be able to survive for longer if they had enough vital water-soluble B vitamins in their system to help metabolize fat stores. So it is possible that a person could die of starvation and still be fat.(21)The longest recorded starvation was by the Irish hunger-striker Kieran Doherty in 1981, who died after fasting for 73 days. With a supply of vitamins and water, people have been known to survive over a year without eating. "It used to be a very fashionable way of losing weight around 30 years ago," says Powell-Tuck. With vitamins but without water, survival time is sharply reduced. A human can be expected to survive for weeks without food, but a thirsty person deprived of water would last a matter of days. "It depends on the rate of water loss," says Michael Sawka at the US Army Research Institute of Environmental Medicine in Natick, Massachusetts.(22)"Without water, the volume of blood in your body drops, and with it your blood pressure drops. Blood becomes thicker and stickier, making it harder to pump around the body, so your heart rate increases to compensate. " Even in a cool environment, you wouldn’t last for more than a week without water.
20. What can we learn about B vitamins from the passage?
21. What do we know about Kieran Doherty?
22. According to Michael Sawka, why is water vital to human survival?
选项
A、The volume of blood and blood pressure will drop without it.
B、It is the base for digestion and absorption of food.
C、It is responsible for regulation of body temperature.
D、It is necessary to eliminate waste out of the body.
答案
A
解析
原因目的题。本题问的是根据Michael Sawka的说法,为什么水对于人类生存来说是至关重要的。短文最后引用了Michael Sawka说的话:没有水的情况下,身体中血液量会降低,血压也会随之降低。B)、C)和D)关于水的重要性的陈述都是正确的,但都不是Michael Sawka的观点,不符合题目要求。
转载请注明原文地址:https://tihaiku.com/zcyy/3558024.html
相关试题推荐
[originaltext]ClimbingtheGreatWallmusthavebeenthirstywork.Itwasl
[originaltext]WhenAshleyBlackmonsatdownforherjobinterviewforamar
[originaltext]WhenAshleyBlackmonsatdownforherjobinterviewforamar
[originaltext]WhenAshleyBlackmonsatdownforherjobinterviewforamar
[originaltext]M:Goodmorning,Dr.Smith.MynameisPeter.Iamafreshmanin
[originaltext]M:Honey,thebasketballgameisabouttostart.Andcouldyoubr
[originaltext]M:Mygrandmawaskilledinacaraccidentlastweek.MayIaskf
[originaltext]M:Mygrandmawaskilledinacaraccidentlastweek.MayIaskf
[originaltext]M:Mygrandmawaskilledinacaraccidentlastweek.MayIaskf
[originaltext]Isitpossibletopersuademankindtolivewithoutwar?Wari
随机试题
Fiftyyearsago,mostpeople’sdailylevelsofactivitywereequivalenttow
巴寨尔协议中市场纪律核心是信息披露,一般银行一年一次,大型银行每季度一次。()
下列需要设置照明值班的场所是( )。A.面积300m2的商店及自选商场 B.
每个气瓶上套两个防振圈,当气瓶受到撞击时,能吸收能量,减轻振动并有保护瓶体标志和
根据中国证券业协会《关于证券公司做好利益冲突管理工作的通知》,证券公司应当做好利
对于等渗性脱水不正确的是A.主要是细胞外液的丧失B.常见于呕吐和腹泻等情况C.血
Thechangeinthatvillagewasmiraculou
二极管应用电路如图所示,图中,uA=1V,uB=5V,R=1kΩ,设二极管均为理
下列关于正常使用状态下裂缝和挠度的说法何项不妥?( )[2014年真题]A、增
建设单位应当将大型的人员密集场所和其他特殊建筑工程的消防设计文件报送公安机关消防
最新回复
(
0
)