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
Thomas Malthus published his "Essay on the Principle of Population" almost 200 years ago. Ever since then, forecasters have bei
Thomas Malthus published his "Essay on the Principle of Population" almost 200 years ago. Ever since then, forecasters have bei
admin
2012-07-11
24
问题
Thomas Malthus published his "Essay on the
Principle of Population" almost 200 years ago. Ever
since then, forecasters have being warning that (1)______
worldwide famine was just around the next corner.
The fast-growing population’s demand for food, they
warned, would soon exceed their supply, leading to (2)______
widespread food shortages and starvation.
But in reality, the world’s total grain harvest
has risen steadily over the years. Except relatively (3)______
isolated trouble spots like present-day Somalia, and
occasional years of good harvests, the world’s food (4)______
crisis has remained just around the corner. Most
experts believe this can continue even as if the (5)______
population doubles by the mid-21st century,
although feeding 10 billion people will not be easy
for politics, economic and environmental reasons. (6)______
Optimists point to concrete examples of continued
improvements in yield. In Africa, by instance, im- (7)______
proved seed, more fertilizer and advanced growing
practices have been more than doubled corn and wheat (8)______
yields in an experiment. Elsewhere, rice experts in
the Philippines are producing a plant with few stems (9)______
and more seeds. There is no guarantee that plant
breeders can continue to develop new, higher-yield
ing crops, and most researchers see their success to (10)______
date as reason for hope.
(2)
选项
答案
their→its
解析
转载请注明原文地址:https://kaotiyun.com/show/GMiO777K
0
专业英语八级
相关试题推荐
LanguageFamiliesThereareover【1】languagesthatareusedthroughouttheworldtoday.Almostalloftheselanguagesbelongt
Mostinterpretersagreethattheirreallyunsettlingmomentscomewhenthespeakermakesajokeinvolvinganuntranslatable-play
AnAmericanDictionaryoftheEnglishLanguagewaspublishedin1828by______.
Whathasthetelephonedonetous,orforus,inthehundredyearsofitsexistence?Afeweffectssuggestthemselvesatonce.I
Whathasthetelephonedonetous,orforus,inthehundredyearsofitsexistence?Afeweffectssuggestthemselvesatonce.I
MostpeoplethinkoflionsasstrictlyAfricanbeasts,butonlybecausethey’vebeenkilledoffalmosteverywhereelse.Tenthou
Foronebriefmoment,afteryearsoffearandloathing,AmericaseemedreadytomakepeacewiththeSAT.WhentheUniversityof
Foronebriefmoment,afteryearsoffearandloathing,AmericaseemedreadytomakepeacewiththeSAT.WhentheUniversityof
AspectsThatMayFacilitateReadingⅠ.DeterminingyourpurposeA.Readingfor【1】______:likereadingthelatestHarryPott
AspectsThatMayFacilitateReadingⅠ.DeterminingyourpurposeA.Readingfor【1】______:likereadingthelatestHarryPott
随机试题
腰椎间盘脱出症最重要的体征是
确诊宫颈癌的可靠方法是
下列选项中()不属于评价环境质量变化效益(或费用)的方法。
在二审程序中,对于()的情况,人民法院应作出维持原判。
5,6,8,12,12,20,17,30,()
下列关于黄河流域的自然环境的说法正确的是:
设fn(x)=.
Ihaveomittedmanythingswhich______aplaceinthebook.
Wecanseehoweveryphilosopherreflectsthesociallifeofhisday.PlatoandAristotle,intheslave-owningsocietyofancien
MusicMusicistheabstractartofarrangingvocalorinstrumentalsounds/inamannerthatproducesaflowing,unifiedand
最新回复
(
0
)