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
In August, environmentalists in the Philippines vandalized(肆意破坏)a field of Golden Rice, an experimental grain whose genes had be
In August, environmentalists in the Philippines vandalized(肆意破坏)a field of Golden Rice, an experimental grain whose genes had be
admin
2018-02-08
31
问题
In August, environmentalists in the Philippines vandalized(肆意破坏)a field of Golden Rice, an experimental grain whose genes had been modified. Its seeds will be handed out free to farmers. The aim is to improve the health of children in poor countries by reducing vitamin A deficiency, which
contributes to
hundreds of thousands of premature deaths and cases of blindness each year.
Environmentalists claim that these sorts of actions are justified because genetically modified crops pose health risks. Now the main ground for those claims has crumbled. Last year a paper which was published in a respected journal found that unusual rates of tumours and deaths in rats that had been fed upon a variety of genetic modification(GM)(转基因)corn. Other studies found no such effects. But this one enabled campaigners to make a health-and-safety argument against GM crops—one persuasive enough to influence governments. After the study appeared, Russia suspended imports of the grain in question. Kenya banned all GM crops. And the French prime minister said that if the results were confirmed he would press for a Europe-wide ban on the GM corn.
There is now no serious scientific evidence that GM crops do any harm to the health of human beings. There is plenty of evidence, though, that they benefit the health of the planet. One of the biggest challenges facing mankind is to feed the 9 billion-10 billion people who will be alive and richer in 2050. This will require doubling food production on roughly the same area of land, using less water and fewer chemicals. It will also mean making food crops more resistant to the droughts and floods that seem likely if climate change is as bad as scientists fear.
If the Green revolution had never happened, and yields had stayed at 1960 levels, the world could not produce its current food output even if it ploughed up every last acre of cultivable land. In contrast, GM crops boost yields, protecting wild habitat from the plough. They are more resistant to the vagaries of climate change, and to diseases and pests, reducing the need for agrochemicals. Genetic research holds out the possibility of breakthroughs that could vastly increase the productivity of farming.
Vandalizing GM field trials is a bit like the campaign of some religious leaders to prevent smallpox inoculations: it causes misery, even death, in the name of unscientific belief.
It can be inferred from Para. 2 that______.
选项
A、the actions of environmentalists are reasonable
B、many studies have found the bad effects of GM crops
C、the study has aroused fierce arguments about GM crops
D、the French bans all GM crops
答案
C
解析
推断题。选项C“这项研究已经引起了关于转基因作物的激烈讨论”与第二段第四句Other studies found no such effects,but this one enabled campaigners to make a health-and-safety argument against GM crop—one persuasive enough to influence governments相符,故选项C正确。
转载请注明原文地址:https://kaotiyun.com/show/gwa7777K
0
大学英语四级
相关试题推荐
A、Twenty-ninedays.B、Twoandahalfmonths.C、Severalminutes.D、Fourteenhours.B细节题。Herbert缺氧达好几分钟,处于昏迷状态长达两个半月,因此选项B正确。
A、Adamant.B、Yielding.C、Calm.D、Flustered.C细节题。本题根据上题解析,应当选择与“不慌乱”对应的词,即C项“镇定的”。A项听力中有提及,但是说的是,即使面对失败的伊拉克战后规划,布莱尔也坚定地认为他的政府可以为
Forthispart,youareallowed30minutestowriteashortessayentitledTheCourageofNeverGivingUpbycommentingonthesa
EarlierthisyearImetwithagroupofwomeninMatela,asmallfarmingvillageinTanzania,andwediscussedsomethingthat’s
A、Hungary,MalaysiaandthePhilippines.B、Hungary,RomaniaandthePhilippines.C、Spain,RomaniaandthePhilippines.D、Hungary
InAugust,environmentalistsinthePhilippinesvandalized(肆意破坏)afieldofGoldenRice,anexperimentalgrainwhosegeneshadbe
InAugust,environmentalistsinthePhilippinesvandalized(肆意破坏)afieldofGoldenRice,anexperimentalgrainwhosegeneshadbe
A、Calltheoffice.B、Signthenameonthenoticeboardinadvance.C、Paythemoney.D、Thereisnoneedtoreserveaplace.B信息明示
A、Hungary,MalaysiaandthePhilippines.B、Hungary,RomaniaandthePhilippines.C、Spain,RomaniaandthePhilippines.D、Hungary
A、Theplayersfoundthebaskettoohightoreach.B、Theplayershadtroublegettingtheballoutofthebasket.C、Theplayersha
随机试题
下列药物哪一个属于全身麻醉药中的静脉麻醉药
有较强局麻作用的镇咳药是
阑尾根部体表投影通常在
图1~5中,为没药的是
某工程项目业主委托了一监理单位进行监理,在委托监理任务之前,业主与施工单位已经签订施工合同。监理单位在执行合同中陆续遇到一些问题需要进行处理,若你作为一名监理工程师,对遇到的下列问题,应提出怎样的处理意见。问题1.在施工招标文件中,按工期
下列各项中,属于长期负债项目的有()。
下列称号与岳飞有关的是()。
师德修养的历史继承性特点要求教师()。
简述班级管理的功能。
Whichchartshowsforeigntradethisyear?
最新回复
(
0
)