题目内容
4．t seems that nowadays all the world are concerned about genetically modified foods （GM foods）．GM foods develop from genetically modified organisms，which have had specific changes introduced into their DNA by genetic engineering techniques．These techniques are much more precise where an organism is exposed to chemicals to create a non-specific but stable change．For many people，the high-tech production raises all kinds of environmental，health and safety problems．Particularly in countries with long farming traditions，the idea seems against nature．In fact，GM foods are already very much a part of our lives．They were first put on the market in 1996．A third of the corn and more than half the cotton grown in the US last year was 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 genie is out of the bottle．
However，like any new product entering the food chain，GM foods must be subjec ted to careful testing．In wealthy countries，the debate about biotech is not so fierce by the fact that they have a large number of foods to choose from，and a supply that goes beyond the needs．In developing countries desperate to feed fast-growing and underfed populations，the matter 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 UN states that nearly 800 million people around the world are unhealthy．About 400 million women of childbearing age don't have enough iron，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？Genetic engineering is widely used to produce plants and animals with better nutritional values．Biotechnologists have developed genetically modified rice and they are working on other kinds of nutritionally improved crops．Biotech can also improve farming productivity in places where food shortage is caused by crop damage attributable to drought，poor soil and crop viruses．
32．The passage mainly talks aboutC．
A．the world's food problem B．the development in biotech
C．the genetically modified foods D．the way to solve food shortage
33．According to the passage，GM foodsB．
A．are not cared about in wealthy countries at all．
B．may help solve the problem of poor nutrition
C．are better than naturally grown foods in some ways．
D．can cause serious trouble in developing countries
34．The underlined sentence"The genetic genie is out of the bottle．"in paragraph 2 probably means thatC．
A．GM foods are available everywhere
B．the technology in producing GM foods is advanced
C．genetic technology has been into markets．
D．genetic technology may have uncontrollable powers
35．In countries with long farming traditions，people's attitude towards GM foods seemsC．
A．Optimistic．B．Approving．C．Disapproving．D．Unbelievable．
分析 本文主要写了生物技术的在食品方面的改变，转基因食谱遍布全世界．
解答 32．C 主旨大意题．文章第一句It seems that nowadays all the world are concerned about genetically modified foods （GM foods）．引领本文主要写的是转基因食品．所以答案选C．
33．B 细节理解题．根据最后一段句子 Genetic engineering is widely used to produce plants and animals with better nutritional values．基因工程被广泛用于生产具有更好营养价值的动植物．所以答案B正确．
34．C 考查句意理解．第二段说1996年的时候第一批转基因食品投入市场，More than 65 million acres of genetically modified crops will be planted in the US this yearThe genetic genie is out of the bottle．今年将在美国种植超过6500万英亩的转基因作物．可见最后这句话的意思是转基因食品已经进入市场了，也就是妖怪从瓶子里出来了．所以答案选C．
35．C 细节理解题．根据文中句子Particularly in countries with long farming traditions，the idea seems against nature．尤其是那些拥有悠久农耕传统的国家，这种想法似乎违背了自然规律． 可见认为这违背自然的规律，应该是不赞同的，所以答案选C．
点评 阅读理解题测试考生在阅读基础上的逻辑推理能力，要求考生根据文章所述事件的逻辑关系，对未说明的趋势或结局作出合理的推断；或根据作者所阐述的观点理论，对文章未涉及的现象、事例给以解释．考生首先要仔细阅读短文，完整了解信息，准确把握作者观点．
