2. 考研
  3. In the following article, some sentences have been removed. For Questions 41-45, choose the most suitable one from the list [A]-

In the following article, some sentences have been removed. For Questions 41-45, choose the most suitable one from the list [A]-

admin2011-03-11  78
问题 In the following article, some sentences have been removed. For Questions 41-45, choose the most suitable one from the list [A]-[G] to fit into each of the numbered blanks. There are two extra choices, which do not fit in any of the blanks. Mark your answers on ANSWER SHEET 1.
    In February of 1997 Dolly, the first successful mammalian clone, was born in Edinburgh, Scotland. With the extensive news coverage of this momentous event, the study of genetic engineering and recombinant DNA was thrown into the public spotlight.
    (41)__________Much of this unfounded fear is based upon memories of poorly researched science fiction novels, fear of the unknown, and a "growing mistrust of science".
    (42)__________For example, it will be possible for cows to be genetically engineered to produce pharmaceuticals in their milk. This means that vaccination shots and pills would become obsolete. Babies could be brought up immune to diseases by simply being fed this milk. Imagine the impact on the quality of life for people who live in third world countries like Somalia. Whole countries could be made healthy and immune to disease.
    (43)__________Rice does not provide all of the nutrients that the body needs and in these countries other food is very scarce. If rice or bread, another major staple, are genetically engineered to contain additional necessary vitamins and minerals then we could go a long way towards wiping out malnutrition all over the world.
    (44)__________Organ transplants and cosmetic procedures, like silicone breast implants, that may cause disease would soon cease to exist. Instead of using materials foreign to the body for such procedures, doctors will be able to manufacture bone, fat, connective tissue, or cartilage that match the patient’s tissues exactly, thus ensuring that the needed tissue will be free of rejection by their immune system. Victims of terrible accidents that deform the face and body would be able to have their features repaired with new, safer technology.
    (45)__________
    Throughout time people have always been afraid of new technology and the power it might possess. When the car was first invented some contemporary scientists were convinced that the human body could not survive at speeds as high as twenty miles per hour. At one time birth control pills, in vitro fertilization, and heart transplants were criticized on the same grounds.
    Genetic engineering is an extremely new aspect of our technological research and should, at all costs, be allowed to develop further. The immense possible benefits from genetic engineering are endless and should not be overlooked. Genetic engineering, then, is a tool that humans can use to cure many of their problems.
    [A] Even though the risks are great, the beneficial possibilities are endless. Genetic engineering should be allowed to progress because of the potential benefits for the human species outweigh the consequences.
    [B] Scientists are only beginning to explore the dangers and benefits of genetic engineering. Yet, instead of seeing the immense potential benefits, much of the American public is automatically rejecting this field of research.
    [C] Genetic engineering also has the power to cure infertility, which a painful reality that many couples throughout the world face.
    [D] Even with all these miraculous benefits, many people throughout the world feel that the issue of genetic engineering is absolutely preposterous and extremely unethical. Such opinions are understandable, considering that the majority of people are always going to be afraid of the unknown.
    [E] Malnutrition, a common problem in many third world countries where impoverished peoples rely on a single crop such as rice for the main staple of their diet, could also possibly be cured with genetic engineering.
    [F] But perhaps, the area that stands to benefit the most from genetic engineering is medicine.
    [G] Genetic engineering is like performing heart surgery with a shovel. Scientists do not yet understand living systems completely enough to perform DNA surgery without creating mutations which could be harmful to the environment and our health.
选项
答案A
解析 此处要根据下文例子的内容来推断。下文的例子主要讲，通过遗传工程，奶牛产的牛奶中会含有药物成分，这意味着疫苗接种针剂及口服药都将过时，婴儿通过食用这种牛奶在成长过程中对某些疾病就具有了免疫力。第三世界国家人民的生活质量将大为改善。由此可知，此段是在讲遗传工程带来的好处。A选项适合作本段的主题句，意为：尽管危险是很大的，但有益的可能性是无限的。应该将遗传工程继续下去，因为它对人类的潜在利益超过它的严重后果。
转载请注明原文地址:https://www.kaotiyun.com/show/Vbp4777K
0

考研英语一

相关试题推荐
随机试题
最新回复(0)