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
Many people feel that human beings are responsible for the disappearance of some other animal species. While we may have hastene
Many people feel that human beings are responsible for the disappearance of some other animal species. While we may have hastene
admin
2011-01-04
94
问题
Many people feel that human beings are responsible for the disappearance of some other animal species. While we may have hastened the disappearance of some, abundant evidence suggests mankind has had little impact. Biologists point out that 50 species can be expected to disappear in the twentieth century but also remind us that about 50 species can be expected in the nineteenth century, and 50 species in each of the centuries before that. Dr. T. H. Jukes at the University of California has pointed out that about 100 million animal species have become extinct since life began on Earth about 3 billion years ago. Thus, animals come and animals go as a natural consequence of something Mr. Darwin discovered. The human race is a recent newcomer to the scene, so we’ve had nothing whatsoever to do with the disappearance of millions of species.
In fact, when it comes right down to it, we’re a miserable failure at genocide(种族灭绝 ). In spite of an all-out centuries-old war on rats, we haven’t made a dent in their numbers, much less extinguished a single species. And in spite of all our high technology we haven’t been successful in eliminating a single undesirable insect species!
A friend of mine owns most of the Douglas DC-7 aircrafts left in the world. They make excellent spray planes because they can carry a lot of insecticide and fly for a very long time over great distances. Last year, his company sprayed most of the western Sahara and the Sahel regions of Africa to hold down the locusts and grasshoppers. This year, the environmentalists put pressure on the UN to stop it because dieldrin and malathion might cause an increase in the cancer risk of people in the western Sahara and the Sahel. As a result, the hoppers and locusts are back by the zillions and the crops are failing. But the people of West Africa certainly aren’t going to worry about dying of cancer; they are dying of starvation instead.
I’ve come to the conclusion that the people who are trying to save the world are probably quite sincere about it but they don’t know much about science and certainly nothing about systems engineering.
Why does the famine in the western Sahara and the Sahel regions of Africa take place this year?
选项
A、People are dying of cancer caused by sprayed insecticide.
B、The insecticide has little effect on the hoppers and locusts
C、The number of the hoppers and locusts are too large to control.
D、The UN forbad the regions to use sprayed insecticide.
答案
D
解析
事实细节题。第三段最后一句话“they are dying of starvation instead”可以看出作者认为饥荒的原因是禁止喷洒农药。故答案为D。
转载请注明原文地址:https://kaotiyun.com/show/rSHO777K
0
在职攻硕英语联考
相关试题推荐
(浙江大学2009年试题)Teachersneedtobeawareoftheemotional,intellectual,andphysicalchangesthatyoungadultsexperience,a
(北京航空航天大学2013年试题)Mostworthwhilecareersrequiresomekindofspecializedtraining.Ideally,therefore,thechoiceofan【C1】
Althoughtheexaminationhepassedwasnotimportant,hissuccess______himinhisambitiontobecomeadoctor.
Themostexcitingkindofeducationisalsothemostpersonal.Nothingcan【C1】______thejoyofdiscoveringforyourselfsomethin
Thegreatchariotofsociety,whichforsolonghadrundownthegentleslopeoftradition,nowfounditselfpoweredbyaninter
Thegreatchariotofsociety,whichforsolonghadrundownthegentleslopeoftradition,nowfounditselfpoweredbyaninter
Apersonwhois______typicallyhasanxiousthoughtsanddifficultyinconcentrationorremembering.
Aperson’shomeisasmuchareflectionofhispersonalityastheclotheshewears,thefoodheeatsandthefriendswithwhomh
MostgraduateprogramsinAmericanuniversitiesproduceaproductforwhichthereisnomarket(candidatesforteachingposition
InanarticlesomeChinesescholarsaredescribedasbeing"tantalizedbythemysteriousdragonbonehieroglyphics."Tantalized
随机试题
高效埋弧焊的方法包括()埋弧焊。
工业生产中用于废热回收的换热方式是混合式换热。()
“群体动力论”和“场论”的提出者是
支配上颌前磨牙及第一磨牙近中的牙髓及其颊侧黏骨膜的为
关于问诊,不正确的是
下列有关投资性房地产的说法中,不正确的是()。
[*]
_____是基于操作性条件反射和积极强化的原理而设计的教学模式,并以此设计了教学机器。
下列句子在修辞运用上与其他三句不同的一句是:
设下三角矩阵(上三角部分的元素值都为0)A[0..n,0..n]如图1-2所示,将该三角矩阵的所有非零元素(即行下标不小于列下标的元素)按行优先压缩存储在容量足够大的数组M[]中(下标从1开始),则元素A[i,j](0≤i≤n,j≤i)存储在数组M的(17
最新回复
(
0
)