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 century ago, a cut or even a decayed tooth were causes for alarm, as they could lead to pneumonia, against which doctors could
A century ago, a cut or even a decayed tooth were causes for alarm, as they could lead to pneumonia, against which doctors could
admin
2010-07-19
60
问题
A century ago, a cut or even a decayed tooth were causes for alarm, as they could lead to pneumonia, against which doctors could only offer home-made cures, crude surgery or, finally, their prayers. Today, these perils have been stopped by the medical weapons of 20th century—and as a result, man has the potential for living longer than at any time in history. In the past 100 years, the life expectancy in a developed country has almost doubled. Researchers believe the millennium will usher in Century of Biotechnology, as computing power and knowledge of the genetic code come together.
Here are come of the biggest developments in medicine that can be expected over the next quarter-century.
1. Diagnosing ailments will be simpler, faster, more accurate and cheaper, using noninvasive scanners, teleconferencing and the Internet. Farther down the track—perhaps 10~15 years—are biochips, which will monitor your DNA and analyze it for genetic anomalies that could bring you fatal diseases or have and adverse reaction to certain drugs. You could then make lifestyle changes enabling you to avoid exposure to conditions or substances known to trigger the disease.
2. Advances in molecular biology mean that scientists now know more than ever about the genetic causes of disease and how to garget them. Over the next decade or so, enzyme inhibitors and gene therapy will make great inroads against different kinds of cancer, heart disease and even brain diseases such as Alzheimer’s. The surgeon of the future may look back on the present ear with the same sense of distaste as his present counterpart views the blood-soaked sawbones of the 19th century. In the coming decades, surgery will be carried out only as a last resort and as minimally as possible. Robots will help perform long or tricky operations such as organ transplants. Nano-probes may be used to clear the arteries free of dangerous plaque build-ups. Another possibility: microchip implants and transplants into the central nervous system to help treat disease like brain tumors, epilepsy, movement disorders and stroke.
3. Outbreaks of disease that previously were localized have the ability to spread quickly, thanks to modern jet travel; a person incubating a new strain of flu in one continent can take it to another in a matter of hours. In addition, feeding and housing a population of six billion has brought Man into closer and closer proximity to animals and rain forests, exposing humans to viruses that "leap" the species barrier, such as mad-cow disease and hemorrhagic fever.
On the hand, microbiology and epidemiology are so advanced that scientists can now quickly spot a new disease (AIDS was detected only three years after it was fist identified) and find out how it is transmitted. This can help in the development of preventative measures, although finding a cure or a vaccine are different matters, as the elusive search for a "silver bullet" against AIDS has shown. In wealthy western countries, the risk to life may be lifestyle. Obesity and depression, caused by excessive eating, loneliness and alienation, may become the twin biggest causes of death. (518 words)
The author believes that outbreaks of diseases that used to be confined within a certain region will spread quickly because ______.
选项
A、modern forms of transportation bring people from different places into contact very quickly
B、the diseases are not spotted quickly enough
C、finding a vaccine against this disease would be difficult
D、people are not immune to diseases from another geographical area
答案
A
解析
从第五段开头“现代社会中,过去只限于某一个地区的疾病,现在得以迅速传播是因为飞机旅行带来的便利。”
转载请注明原文地址:https://kaotiyun.com/show/jflO777K
0
专业英语八级
相关试题推荐
Morethanonevariant,whichcanrealizesomemorphemesaccordingtothepositioninaword,aretermed
Indozensofyears,therearemorecasesoftheinvasionofalienspeciespartlybecauseThedifferencebetweenDr.Cappuccino
ItcanbeinferredfromthefirstparagraphthatWhatisthemainideaofthepassage?
WhichofthefollowingwritersdoesnotbelongtothelakersoftheRomanticPeriod?
Fromthepassage,wecaninferthattheauthoriswhatkindofperson?Whatdoes"dirtypool"attheendofthesecondparagrap
Onecharacteristicoftherichclassesofadecliningsocietyistheirtendencyto______.WhichofthefollowingisNOTanele
______andWilliamShakespearearethebestrepresentativesoftheEnglishhumanism.
A、Peopleofcomparativelyhigherlevels.B、Peopleconsistinglargelyofuniversitystudents,postgraduates,Englishworkers.C、T
LeavingHomeGenerallyforstudentsorforpeoplejustbeginningwork,therearepractical【1】_____of
HypnosisIntheofficeofa【1】______,ayoungmanisregardedasthesubjectofanexperimentin
随机试题
少尿是指24h尿量少于
关于冠状动脉的叙述,正确的是
患者女,43岁。体检发现右乳外上象限肿物,大小1.0cm,光滑,活动度尚可,表面皮肤未见异常,无红肿热痛,无外伤史。问题3:如超声扫描显示此肿物为实性,进一步观察指标不包括
新生儿败血症最有诊断意义的是
引起慢性肺心病肺动脉高压最重要原因是
下述发热是变态反应引起的,但需除外哪一项
关于统计汇总整理质量控制的下列表述中,正确的是( )。
A公司于2×19年1月1日开始动工兴建一幢办公楼,工程预计于2×20年9月30日完工,达到预定可使用状态。A公司建造工程支出如下:(1)2×19年3月1日,支出4000万元;(2)2×19年6月1日,支出2000万元;
老李的记性很差,经常不记得自己是否吃过药,有时没吃过以为吃过了,吃过了又以为没吃过。妻子建议他:“你每天吃过药就把药瓶放在柜子上,我第二天会帮你把它放在桌子上。你见到药瓶在桌子上,就知道自己没吃过药。我见到药瓶在桌子上,也会提醒你吃药。”老李接受了这个建议
InhindsightoneoftheworstthingsaboutAmerica’ssubprimehousingbustishowpredictableitwas.Subprimeborrowerswereby
最新回复
(
0
)