首页
登录
职称英语
If you want to spark a heated debate at a dinner party, bring up the topic o
If you want to spark a heated debate at a dinner party, bring up the topic o
游客
2025-03-25
26
管理
问题
If you want to spark a heated debate at a dinner party, bring up the topic of genetically modified foods. For many people, the concept of genetically altered, high-tech crop production raises all kinds of environmental, healthy, safety and ethical questions. Particularly in countries with long a grain traditions—and vocal green lobbies—the idea seems against nature.
In fact, genetically modified foods are already very much apart of out lives. A third of corn and more than half the soybeans and cotton grown in the U. S. last year were the product of biotechnology, according to the Department of Agriculture. More than 65 million a-cres of genetically modified crops will be planted in the U. S. this year. The genetic genie(妖怪) is out of the bottle.
Yet there are clearly some very real issues that need to be resolved. Like any new prod-uct entering the food chain, genetically modified foods must be subjected to rigorous testing. In wealthy countries, the debate about biotech is tempered by the fact that we have a rich array of foods to choose from and a supply that far exceeds our needs. In developing countries desperate to feed fast-growing and underfed populations, the issue is simpler and much more urgent: Do the benefits of biotech outweigh the risks?
The statistics on population growth and hunger are disturbing. Last year the world’s population reached 6 billion. The U. N. estimates that nearly 800 million people around the world are undernourished. The effects are devastating. About 400 million women of child-bearing age are iron deficient, which means their babies are exposed to various birth defects. As many as 100 million children suffer from vitamin A deficiency, a leading cause of blindness.
How can biotech help? Biotechnologists have developed genetically modified rice that is fortified with beta-carotene—which the body converts into vitamin A—and additional iron, and they are working on other kinds of nutritionally improved crops. Biotech can also improve farming productivity in places where food shortages are caused by crop damage attributable to pests, drought, poor soil and crop viruses, bacteria or fungi. [br] The sentence "The genetic genie is out of the bottle. " in Para. 2 probably means
选项
A、the genetic genie, the key technology in producing genetically modified foods, is out in the market
B、the genetic technology has come out of laboratories into markets
C、genetically modified foods are available everywhere
D、technology with which to produce genetically modified foods may have powers unpredictable or uncontrollable by man
答案
D
解析
这句话借助于童话《渔夫与妖怪》的故事,经分析可知这句话说的是转基因技术的负面作用。文章第一段明确指出转基因食品的潜在问题,接着第二段说明转基因食品已成为我们生活的一部分,并介绍了转基因农作物在美国生产的现状,第三段首句又提到“仍有一些问题需要解决”。因此本题的正确答案为D。
转载请注明原文地址:https://tihaiku.com/zcyy/4012202.html
相关试题推荐
ThehostinvitedtothedinnerpartyBerlinersofmanywalksoflife—businessm
Shesaidthatshewouldinvitemetodinner,butIwonderifshewaskiddingor_
Astheso-calleddebateoverhealthcarecontinuesintheSenate,letmetake
Astheso-calleddebateoverhealthcarecontinuesintheSenate,letmetake
Ifyouwanttosparkaheateddebateatadinnerparty,bringupthetopico
Ifyouwanttosparkaheateddebateatadinnerparty,bringupthetopico
Ifyouwanttosparkaheateddebateatadinnerparty,bringupthetopico
Ifyouwanttosparkaheateddebateatadinnerparty,bringupthetopico
Thestudentsmadeheateddiscussions______theeducationsystem.A、astoB、duet
TheSmiths______dinnerwhenthephonerangsuddenly.A、arehavingB、hadC、wereha
随机试题
PASSAGETHREE[br]Whatwasusedtodisplaythewealthofawoman’sfamily?Decor
Mostpublishingisnow"electronic"inthesensethatbooks,magazines,and
Thefatherofmodernlinguisticsis______.A、SaussureB、JohnAustinC、NoamChomsk
[originaltext]Reducingtheamountofsleepstudentsgetatnighthasadirecti
按照菲利普斯曲线,在长期内,通货膨胀与失业率之间存在替换关系。()
下面关于交换机端口类型的描述中,正确的是()。A.Access类型接口用于连接
患儿男,5岁。因左侧下颌第一乳磨牙脱落伴反复发热到医院门诊就诊。临床检查示:体温
合格境内机构投资者开展境外证券投资业务时,应当由具有证券基金托管资格的银行负责资
在小学低年级识字教学中,有人按偏旁结构归类识字,有人按字音归类识字,这属于()
根据《国际贸易术语解释通则2000》的规定,下列哪一种贸易需由卖方办理进口手续?
最新回复
(
0
)