首页
登录
职称英语
Thomas Malthus published his "Essay on the Principle of Population" almost
Thomas Malthus published his "Essay on the Principle of Population" almost
游客
2023-12-13
31
管理
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. [br] (7)
选项
答案
by→for
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3270881.html
相关试题推荐
______istheonlycityonthewesterncoastofAustraliawithapopulationofov
______madeblankversetheprincipalvehicleofexpressionindrama.A、ThomasKyd
Itwas______whofirstintroducedthesonnetintoEnglishliterature.A、ThomasLog
______wrotethefamousproseworkUtopia.A、FrancisBaconB、ThomasMoreC、Philip
______,thefirstnovelbyJackLondon,waspublishedin1902.A、ADaughterofth
MakeThataDoubleAfewyearsago,itdawnedonZachThomas
Thishasbeenquiteaweekforliterarycoups.Inanalmostentirelyunexpec
Thishasbeenquiteaweekforliterarycoups.Inanalmostentirelyunexpec
IcebergPrincipleisassociatedwith______.A、FaulknerB、PoundC、HemingwayD、Poe
TheCooperativePrinciplewasproposedbyA、Saussure.B、Halliday.C、Searle.D、Gri
随机试题
Canyouchangeoneletterofeachofthesewordstomaketwonewwordswithaco
[originaltext]W:Whatsortofhoursdoyouwork,Steve?M:Well,Ihavetowork
某工程项目建设单位与施工单位依法签订了施工合同,合同中估算工程量为5300m2,
工业建筑耐火等级为三级的楼板燃烧性能和耐火极限应满足()。A.不燃性1.50h
模拟信号的波形图如图所示,它的时间域描述形式是:A.u(t)=2(1-e-10
哪项不符合先天性甲状腺功能减低症()A.低体温 B.出生体重小于正常新
下列防腐剂不影响尿中蛋白质和糖定性实验的是( )。A.浓盐酸 B.甲苯 C
《变电验收管理规定第23分册站用交流电源系统验收细则》:UPS竣工(预)验收中运
科学家发现16个生物钟基因大部分在一天中固定的时间发挥作用,其中有9个在早晨工作
某一高层封闭式办公大楼,终日采用集中式空调系统。近日工作人员诉说呼吸道干燥、鼻塞
最新回复
(
0
)