D. the way to solve food shortage
39.According to the passage, GM foods ________.
A. will replace naturally grown foods
B. are far better than naturally grown foods
C. may help to solve the problem of poor nutrition
D. can cause serious trouble in developing countries
40.The underlined sentence “The genetic genie is out of the bottle.” in paragraph 2 probably means that _______.
A. GM foods are available everywhere
B. the technology in producing GM foods is advanced
C. genetic technology may have uncontrollable powers
D. genetic technology has come out of laboratories into markets
【解析】
试题分析:本文是一篇说明文,主要介绍了转基因食品的现状以及问题,从世界各国的经济发展水平不同所以面对的问题也不同阐述,也讲述了转基因的未来发展方向。
38. C主旨大意题。文章开篇就在提Nowadays more and more people are talking about genetically modified foods ( GM foods).再结合整篇文章可知中心是genetically modified foods。故选C。
39. C细节理解题。根据文章Genetic engineering is widely used to produce plants and animals with better nutritional values.就可知转基因可以解决这个问题,故选C。
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