【正确答案】On the Development of Science and Technology It is widely acknowledged that the development of science and technology makes our life more comfortable and convenient. The modern telecommunications shorten the distance among people; various transportation modes ensure smooth travel, and advanced medicine and medical treatment promote people's health and prolong people's lifespan. However, many severe problems arise in the process of scientific development. For one thing, environmental pollution is one of the most serious problems, some of which are caused by the advanced science and technology. For another, food safety is an increasingly important public health issue. It is reported that food-borne diseases are a widespread and ever-growing public health problem, both in developed and developing countries. In short, the development of science and technology is a double-edged sword, which brings about both positive and negative influences. First and foremost, sustainable development should be greatly promoted. In addition, we can make full use of its advantages to develop more 'green' food for the public.