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{{B}}GENETICALLY MODIFIED FOODS{{/B}}
Are
genetically modified crops an environmental dream come-true or a disaster in the
making Scientists are looking for answers.
The world seems
increasingly divided into those who favor genetically modified (GM) foods and
those who fear them Advocates assert that growing genetically altered crops can
be kinder to the environment and that eating foods from those plants is
perfectly safe. And, they say genetic engineering which can induce plants to
grow in poor soils or to produce more nutritious foods will soon become an
essential tool for helping to feed the world’s burgeoning population. Skeptics
contend that GM crops could pose unique risks to the environment and to health
risks too troubling to accept placidly, Taking that view, many European
countries are restricting the planting and importation of GM agricultural
products. Much of the debate hinges on perceptions of safety.
[填空题]Many experts who favor genetically modified foods believe that genetic engineering can help to meet the demands of the world’s increasing population.
[单项选择] Genetically Modified Foods -- Feed the World
If you want to spark a heated debate at a dinner party, bring up the topic about genetically modified foods. For many people, the concept of genetically altered, high-tech crop production raises all kinds of environmental, health, safety and ethical questions. Particularly in countries with long agrarian traditions -- and vocal green lobbies -- the idea seems against nature.
In fact, genetically modified foods are already yew much a part of our lives. A third of the corn and more than half the soybeans and cotton grown in the US last year were the product of biotechnology, according to the Department of Agriculture. More than 65 million acres of genetically modified crops will be planted in the US this year. The genetic is out of the bottle.
Yet there are clearly some very real issues that, need to be resolved, lake any new product entering the food chain, genetically modified foods
A. nutrient contents and farming productivity
B. beta-carotene contents in rice
C. vitamin A and iron elements in crop
D. attribution to resist insects