单选题
Biotechnology is expected to bring important advances in medical diagnosis and therapy, in solving food problems, in energy saving, in environmentally compatible industrial and agricultural production, and in specially targeted environmental protection projects. Genetically altered microorganisms can break down a wide range of pollutants by being used, for example, in bio-filters and wastewater-treatment facilities, and in the clean-up of polluted sites. Genetically modified organisms can also alleviate environmental burdens by reducing the need for pesticides, fertilizers, and medications. Sustainability, as a strategic aim, involves optimizing the interactions between nature, society, and the economy, in accordance with ecological criteria. Political leaders and scientists alike face the challenge of recognizing interrelationships and interactions between ecological, economic and social factors and taking account of these factors when seeking solution strategies. To meet this challenge , decision-makers require interdisciplinary approaches and strategies that cut across political lines. Environmental discussions must become more objective, and this includes, especially, debates about the risks of new technologies, which are often ideologically charged. In light of the complex issues involved in sustainable development, we need clearer standards for orienting and assessing our environmental policies. Sustainable development can succeed only if all areas of the political sector, of society, and of science accept the concept and work together to implement it. A common basic understanding of environmental ethics is needed to ensure that protection of the natural foundation of life becomes a major consideration in all political and individual action. A dialogue among representatives of all sectors of society is needed if appropriate environmental policies are to be devised and implemented.
单选题
Biotechnology______.
【正确答案】
C
【答案解析】解析：第一段开头讲到Biotechnology可以为解决食品问题，节约能源，进行与自然和谐相处的工农业生产，以及环境保护计划等提供水平得到提高的medical diagnosis and therapy。只有C项包括在其中。
单选题
When he says approaches and strategies that cut across political lines, the author means that they______.
【正确答案】
D
【答案解析】解析：前文讲到Political leaders and scientists alike要了解各自之间的相互联系与相互作用，并在制定策略时考虑到这些因素，这样他们就需要cut across political lines，可以推断这里的political lines最有可能的意思是“政治屏障”。
单选题
It can be inferred from the passage that the complexity of sustainable development______.
【正确答案】
A
【答案解析】解析：第二段最后一句讲到鉴于可持续发展中涉及的the complex issues，我们需要用更清晰的标准来orienting and assessing our environmental policies。
单选题
The success of sustainable development lies in______.
【正确答案】
B
【答案解析】解析：末段第一句讲到只有all areas of the political sector，of society，and of science accept theconcept and work together to implement it，可持续发展才能成功。这句话实际就是说可持续发展的成功需要社会各方面良好的合作。