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
35
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://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
AnswerQuestionsbyreferringtothesynopsesoffourkindsofChinesepaintings.Note:Whenmorethanoneanswerisrequire
Thesecondparagraphseemstosuggestthat______Themainideaofthepassageisthat______
Thesecondparagraphseemstosuggestthat______Inparagraph5,theword"precipitous"maybesubstitutedby______
Paragraph2seemstosuggestthat______.Theresultof"Tuesdaycase"isthat______.
Chinahasmadegreatachievementsoverthepasttwodecadesinitslegalconstruction,saidarecentarticleinChinaDaily.
Chinahasmadegreatachievementsoverthepasttwodecadesinitslegalconstruction,saidarecentarticleinChinaDaily.
TherecentsocialandeconomicchangesintheU.S.havegreatimpactonalltheAmericanhousingsystem.
TherecentsocialandeconomicchangesintheU.S.havegreatimpactonalltheAmericanhousingsystem.
Whatarethetwospeakersdiscussing?
Inrecentyears,workingathomeforone’semployershasbecomeagrowingtrendinmanycountriesandisexpectedtobecommonJ
随机试题
影响国债销售价格的因素有()。Ⅰ.市场利率Ⅱ.承销商承销国债的中标成本Ⅲ.流通市场中可比国债的收益率水平Ⅳ.国债承销的手续费收入
动脉瓣处于开放状态的时期是
A.5%碳酸氢钠 B.50%葡萄糖 C.10%葡萄糖酸钙 D.7%氯化钠 E.0.9%氯化钠能使扩容与纠正低渗性缺水的是
房地产经纪人协理应当具备的职业技术能力有()。
下列因素中,属于评估企业股权价值应当考虑的因素有()。
经测算,在采取相关风险缓释措施后,项目收益仍不能有效覆盖风险,因此鑫宝公司决定放弃该项目。据此,该公司采取的风险应对策略为()。
平静呼气末胸膜腔内压()。
在无人监督的情况下仍能坚持按道德观念去做事的行为被称为()。
万物各有不足,人又何尝不是这样。诸葛亮一生惟恭惟敬,可是不免有街亭失守之过:唐太宗贞观之治流传千古,可是不免有“文字狱”之错;成吉思汗,逐俄御寇,功绩显赫,可是不免有杀城戮民之罪;一代伟人毛泽东,缔造新中国,功比天高,可十年浩劫留下一块瑕疵人人可见。这段文
只有当买房者看懂了,搞清了,具备了和房产商讨价还价的条件,专家所大声疾呼的市场定价才会有合理性。否则,再激烈的“炮轰”也只能算是____________。填入划横线部分最恰当的一项是()。
最新回复
(
0
)