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
The threat of diseases such as influenza or tuberculosis re-emerging in virulent form has been a common theme in recent years. T
The threat of diseases such as influenza or tuberculosis re-emerging in virulent form has been a common theme in recent years. T
admin
2014-06-20
69
问题
The threat of diseases such as influenza or tuberculosis re-emerging in virulent form has been a common theme in recent years. That threat is not limited to human diseases. Our food plants get sick too, and just as human diseases evolve to evade antibiotics, so the diseases that strike our crops evolve to sidestep the resistance genes we’have bred into them. For the vast majority of the calories the world eats, the key crop is grain.
A ruinous wheat disease we have not had to worry about since the 1950s is making a comeback, and unless we are very lucky, we will not have sufficient defences to protect crops everywhere in the world against it in time. That stem rust would evolve and return to plague us was inevitable , but our lack of preparation to ward it off was not.
Research into stem rust was bound to tail off once the disease seemed beaten, but the world let down its guard too far, for ideological reasons. In the 1980s governments of industrialized countries, especially the UK and US, started to lose patience with the "multilateral" agencies that engineered much of the global progress in agriculture after the Second World War. Each government wanted the agencies to dance only to its tune. This included the Consultative Group for International Agricultural Research, the global network of labs that created the " Green Revolution". The CGIAR remains the leading, sometimes only source of agricultural research devoted to global good rather than private profit.
"Multilateral" funding meant these labs received income from rich donors with no strings attached. Researchers at the labs were able to spend the money the way they thought best—including the unglamorous task of making sure that crops’ disease resistance kept pace with the diseases. However, for more than two decades, donors have been cutting this funding in favour of only financing projects allied to their own interests. As wheat stem rust re-emerged in 1999, the main CGIAR wheat lab was entering a major funding crisis, and ended up sacking a quarter of its scientists. It has taken until now to beg enough money to fight the disease.
There are now signs that donors may be moving back to more open-ended funding, which is to be encouraged. They should also increase their derisory funding for this vital research: stem rust is poised to teach us the dangers of complacency.
The world population is predicted to rise by another 3 billion by 2050, yet increases in food production have stagnated, technological fixes are spent, and global warming—and the return of diseases like stem rust—look likely to take back many of the gains we have made. Food security affects political security, and one of the first regions to suffer from stem rust will be the volatile Middle East, including Iraq. Agricultural research for the public good is the only way to provide that security. It is certainly cheaper than building armies.
The human and crop diseases once under control have come back again because
选项
A、antibiotics do not work anymore.
B、human diseases spread to plants.
C、there is genetic resistance in them.
D、human interventions no longer work.
答案
C
解析
细节题。题目问的是“人与谷物疾病曾经被控制还会复发的原因是 。”A抗生素不起作用,不正确;B在文章中没有提及,故B错误;D在文章中也没出现,可以排除;由文中thediseases that strike our crops evolve to sidestep the…them,可看出C为正确答案,所以选择C。
转载请注明原文地址:https://www.kaotiyun.com/show/ryXd777K
本试题收录于:
公共英语五级笔试题库公共英语(PETS)分类
0
公共英语五级笔试
公共英语(PETS)
相关试题推荐
Paragraph2seemstosuggestthat______.Theresultof"Tuesdaycase"isthat______.
Whatdoesthewomansuggestthemando?
Dr.WilsonandMr.Wanghavemetbefore.
Dr.WilsonandMr.Wanghavemetbefore.
Dr.WilsonandMr.Wanghavemetbefore.
Thesedayswearesoaccustomedtotelegraphmessages(31)itishardforustoimaginetheexcitementthatwasfeltinthenine
Whatisthespeakermainlydiscussing?
Chocolateisnotagreatsourceofnutrients,butthere’snoharmineatingamoderateamount,especiallythedarkvariety,(31)
Chocolateisnotagreatsourceofnutrients,butthere’snoharmineatingamoderateamount,especiallythedarkvariety,(31)
Humanviolenceshowsevidenceofbeingalearnedbehaviorinthat______.Theword"allegiance"inthethirdparagraphisclose
随机试题
简述幼儿无意注意的发展。
正在处理的单元格称为活动单元格。()
应用异烟肼作为预防结核杆菌感染的预防性服药指征包括()。
根据国际公约和国际习惯,对一国领土主权的限制包括以下哪些方面?
不同时期由于财政支出作用的不同,财政支出数量也会发生变化,提出此观点的是()。
委托收款是收款人委托银行向付款人收取款项的一种结算方式,只能在同城使用。()
能够体现传授知识与思想品德教育相统一规律的教学原则是()。
未来消费金融领域空间巨大,而且随着市场逐渐完善成熟,银行也会更加注重产品服务优化和个性化营销。因此,各银行不约而同地将信用卡业务作为了未来的战略重心。以下各项如果为真,最能加强上述结论的是:
公安机关刑事强制工作的内容主要有()。
如图所示是网络地址转换NAT的一个示例,图中①~④略去部分信息,其中③应为()。
最新回复
(
0
)