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 being
Thomas Malthus published his Essay on the Principle of Population almost 200 years ago. Ever since then, forecasters have being
admin
2013-11-20
52
问题
Thomas Malthus published his Essay on the Principle of Population
almost 200 years ago. Ever since then, forecasters have being warning 【M1】______
that worldwide famine was just around the next corner. The fast-growing
population’s demand for food, they warned, would soon exceed their 【M2】______
supply, leading to widespread food shortages and starvation.
But in reality, the world’ s total grain harvest has risen steadily over the
years. Except for relative isolated trouble spots like present-day Somalia, 【M3】______
and occasional years of good harvests, the world’ s food crisis has remained 【M4】______
just around the corner. Most experts believe this can continue even as if 【M5】______
the population doubles by the mid-21st century, although feeding 10 billion
people will not be easy for politics, economic and environmental reasons. 【M6】______
Optimists point to concrete examples of continued improvements in yield.
In Africa, by instance, improved seeds, more fertilizers and advanced 【M7】______
growing practices have more than double corn and wheat yields in an 【M8】______
experiment. Elsewhere, rice experts in the Philippines are producing
a plant with few stems and more seeds. There is no guarantee that plant 【M9】______
breeders can continue to develop new, higher-yielding crop, but most 【M10】______
researchers see their success to date as reason for hope.
【M1】
选项
答案
being改为been
解析
(have been+现在分词为现在完成进行时。)
转载请注明原文地址:https://jikaoti.com/ti/82tMFFFM
本试题收录于:
B类竞赛(英语专业本科专科)题库大学生英语竞赛(NECCS)分类
0
B类竞赛(英语专业本科专科)
大学生英语竞赛(NECCS)
相关试题推荐
AsevidencethattheEarth’satmosphereiswarmingcontinuestoaccumulate,scientistsaremakingslowprogresstowardananswer
Ifthereisanysingle【21】thatmakesforsuccessinliving,itistheabilitytoprofitbydefeat.EverysuccessIknowhasbeen
TeadrinkingwascommoninChinafornearlyonethousandyearsbeforeanyoneinEuropehadeverheardabouttea.【74】,mainlybec
Theideaofhelpingpeoplecomesnaturallytomostofus.Ifweseeablindpersongettingoffabus,wewatchtomakesurethat
ThefourthcomponentoftheSwedishsocialsystemisthatitspoliciesensurefullemploymentandincreasethemobilityoflabou
Usingthisalphabet,youmusttrytoidentifyaregularpatterninthelettersgiven.Onceidentifiedyoumustcontinuethispat
8195+1921Ifthesetwonumberstotal6879,whatdothetwonumbersbelowtotal?8216+1909
【T1】我希望这个新学年成为对我的学生们有益的一年。(want…tobe)他们会在新学年学习很多东西,包括微积分、莎士比亚和失败。没错,就是失败。根据多种流传的说法,梭罗是个失败者。这位哈佛毕业生似乎把自己的大部分时间都用来在瓦尔登湖畔家
随机试题
如何实施“以质取胜”战略?
A、afternoonB、classroomC、roommateD、bootBoo在B项中读[u],而在A、C、D三项中读[u:]。
患者小便浑浊,乳白或如米泔水,上有浮油,置之沉淀,或伴有絮状凝块物,或混有血液、血块,尿道热涩疼痛,尿时阻塞不畅,口干,苔黄腻,舌质红,脉濡数。治宜选用
彩色多普勒血流显像仪的工作流程不包括下列哪项内容
男性,43岁,面部疖肿挤压后寒战高热,局部肿胀明显,全身皮肤散在瘀血点,血白细胞18×109/L,中性0.90。若处理不当可引起
下列关于糖原染色法的应用不正确的是
我国对涉及人类健康和安全,动植物生命和健康以及环境保护和公共安全的产品实行强制性认证制度,认证标志是______,其名称是______。()
按照国家有关规定,纳税人委托个体经营者加工应税消费品,一律( )消费税。
马克思通过对资本主义生产中价值增值过程的分析,把雇佣工人的劳动时间分为()。
(东华大学2017)马歇尔一勒纳条件指当一国的出口需求弹性与进口需求弹性之和()时,该国货币贬值才有利于改善贸易收支。
最新回复
(
0
)