英语六级长篇阅读匹配练习题
[C] Yet there are clearly some very real issues that need to be resolved. Like any new productentering the food chain, genetically modified foods must be subjected to rigorous testing. Inwealthy countries, the debate about biotech is tempered by the fact that we have a rich array offoods to choose from--and a supply that far exceeds our needs. In developing countriesdesperate to feed fast-growing and underfed populations; the issue is simpler and much moreurgent: Do the benefits of biotech outweigh the risks?
[D] The statistics on population growth and hunger are disturbing. Last year the world'spopulation reached 6 billion. And by 2050, the UN estimates, it will be probably near 9 billion.Almost all that growth will occur in developing countries. At the same time, the world's availablecultivable land per person is declining. Arable land has declined steadily since 1960 and willdecrease by half over the next 50 years, according to the International Service for the Acquisition ofAgri-Biotech Applications ( ISAAA).
How can biotech help?
[E] Biotechnologists have developed genetically modified rice that is fortified with beta-carotene(胡萝卜素)--which the body converts into vitamin A--and additional iron, and they areworking on other kinds of nutritionally improved crops. Biotech can also improve farmingproductivity in places where food shortages are caused by crop damage attribution to pests,drought, poor soil and crop viruses, bacteria or fungi ( 真菌 ).
[F] Damage caused by pests is incredible. The European corn borer, for example, destroys 40million tons of the-world's corn crops annually, about 7% of the total. Incorporating pest-resistantgenes into seeds can help restore the balance. In trials of pest-resistant cotton in Africa, yieldshave increased significantly. So far, fears that genetically modified, pest-resistant crops might killgood insects as well as bad appear unfounded.
[G] Viruses often cause massive failure in staple crops in developing countries. Two years ago,Africa lost more than half its cassava (树薯) crop--a key source of calories-to the mosaic virus (花叶病毒).Genetically modified, virus-resistant crops can reduce that damage, as can drought-tolerant seeds in regions where water shortages limit the amount of land under cultivation.Biotech can also help solve the problem of soil that contains excess aluminum, which can damageroots and cause many staple-crop failures. A gene that helps neutralize aluminum toxicity (毒性)in rice has been identified. Many scientists believe biotech could raise overall crop productivity indeveloping countries as much as 25% and help prevent the loss of those crops after they areharvested.
[H]Yet for all that promise, biotech is far from being the whole answer. In developing countries,lost crops are only one cause ofhunger. Poverty plays the largest role. Today more than 1 billionpeople around the globe live on less than 1 dollar a day. Making genetically modified cropsavailable will not reduce hunger if farmers cannot afford to grow them or if the local populationcannot afford to buy the food those farmers produce.
[I] Biotech has its own "distribution" problems. Private-sector biotech companies in the richcountries carry out much of the leading-edge research on genetically modified crops. Theirproducts are often too costly for poor farmers in the developing world, and many of those productswon't even reach the regions where they are most needed. Biotech firms have a strong financialincentive to target rich markets first in order to help them rapidly recoup the high costs of productdevelopment. But some of these companies are responding to needs of poor countries.
[J] More and more biotech research is being carried out in developing countries. But to increasethe impact of genetic research on the food production of those countries, there is a need for bettercollaboration between government agencies--both local and in developed countries--and privatebiotech firms. The ISAAA, for example, is successfully partnering with the U. S. Agency forInternational Development, local researches and private biotech companies to find and deliverbiotech solutions for farmers in developing countries.
Will "Franken-foods" feed the world?
[K]Biotech is not a panacea ( 治百病的药), but it does promise to transform agriculture in manydeveloping countries. If that promise is not fulfilled, the real losers will be their people, who couldsuffer for years to come.
[L] The world seems increasingly to have been divided into those who favor geneticallymodified foods and those who fear them. Advocates assert that growing genetically altered cropscan 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 morenutritious foods—will soon become an essential tool for helping to feed the world's burgeoning( 迅速发展的) population. Skeptics contend that genetically modified crops could pose unique risksto the environment and to health--risks too troubling to accept placidly. Taking that view, manyEuropean countries are restricting the cultivation and importation of genetically modifiedagricultural products. Much of the debate are concerned about of safety. But what exactly doesrecent scientific research say about the hazards?
[M] Two years ago in Edinburgh, Scotland, eco-vandals stormed a field, crushing canola plants.Last year in Maine, midnight raiders hacked down more than 3,000 experimental poplar trees. Andin San Diego, protesters smashed sorghum and sprayed paint over greenhouse walls. This far-flungoutrage took aim at genetically modified crops. But the protests backfired: all the destroyedplants were conventionally bred. In each case, activists mistook ordinary plants for geneticallymodified varieties.
[N] It's easy to understand why. In a way, genetically modified crops--now on some 109million acres of farmland worldwide--are invisible. You can't see, taste or touch a gene insertedinto a plant or sense its effects on the environment. You can't tell, just by looking, whether pollencontaining a foreign gene can poison butterflies or fertilize plants miles away. That invisibility isprecisely what worries people. How, exactly, will genetically modified crops affect theenvironment--and when will we notice?
[O] Advocates of genetically modified or transgenic crops say the plants will benefit theenvironment by requiring fewer toxic pesticides than conventional crops. But critics fear thepotential risks and wonder how big the benefits really are. "We have so many questions aboutthese plants," remarks Guenther Stotzky, a soft microbiologist at New York University. "There's alot we don't know and need to find out. "As genetically modified crops multiply in the landscape,unprecedented numbers of researchers have started fanning into the fields to get the missinginformation. Some of their recent findings are reassuring; others suggest a need for vigilance.
46. According to the UN's prediction, the population growth from now to 2050 is nearly all indeveloping countries.
47. Those people and countries restricting and opposed to planting and importing ofgenetically modified $ plants worry about their safety.
48. The boosters of genetically modified crops argue that these altered plants need fewertoxic pesticides.
49. The mosaic virus led to the loss of more than half of African main food two years ago.
50. Genetically modified crops can help to improve nutrient contents and farming productivity.
51. The most important factor that leads to hunger in developing countries is poverty, notcrops lost.
52. The far-flung outrage destroys fields and plants because they misidentified ordinary plantsfor genetically modified varieties.
53. The debate on genetically modified foods is more heated in developing countries with fast-growing and half-starved populations.
54. One third of corn planted in America was genetically modified corn last year.
55. Majority of people believe genetically modified crop causes environmental problems.
语篇分析
46. According to the UN's prediction, the population growth from now to 2050 is nearly all indeveloping countries
译文 根据联合国的预测，从现在到2050年的人口增长几乎都集中在发展中家。
定位 关键词UN，2050，in developing countries定位到原文划线句。
47. Those people and countries restricting and opposed to planting and importing ofgenetically modified plants worry about their safety.
译文 对转基因农作物产品的种植和进口持限制与反对态度的人们和国家所担心的足其安全问题。
定位 由关键词restricting，safety定位到原文划线句。
48. The boosters of genetically modified crops argue that these altered plants need fewertoxic pesticides.
译文 转基因作物支持者辩称转基因作物需要更少的有毒杀虫剂。
定位 由关键词fewer toxic pesticides定位到原文划线句。
49. The mosaic virus led to the loss of more than half of African main food two years ago.
译文 两年前，花叶病毒导致非洲的主要食物损失了一半以上。
定位 由关键词The mosaic virus，half，African定位到原文划线句。
50. Genetically modified crops can help to improve nutrient contents and farming productivity.
译文 转基因作物有助于改善作物的营养成分和农业生产力。
定位 由关键词Genetically modified，nutrient，farming productivity定位到原文划线句。
51. The most important factor that leads to hunger in developing countries is poverty, notcrops lost.
译文 在发展中国家，导致饥饿的最重要原因是贫穷，而非作物损失。
定位 由关键词poverty，developing countries定位到原文划线句。
52. The far-flung outrage destroys fields and plants because they misidentified ordinary plantsfor genetically modified varieties.
译文 这些暴行破坏了田地与农作物，他们把一般作物误认为是转基因作物。
定位 由关键词far-flung outrage，destroys定位到原文划线句。
53. The debate on genetically modified foods is more heated in developing countries with fast-growing and half-starved populations.
译文 在人口快速增长且吃不饱饭的发展中国家，对于转基因作物的争议更加激烈。
定位 由关键词developing countries.population定位到原文划线句。
54. One third of corn planted in America was genetically modified corn last year.
译文 秘去年，美国转基因玉米的种植面积占到了三分之一。
定位 由关键词third，planted，America，last year定位到原文划线句。
55. Majority of people believe genetically modified crop causes environmental problems.
译文 大多数人认为转基因作物会引起环境问题。
定位 由关键词people，environmental定位到原：史划线句。