雅思大作文7分范文：科技对于食品的影响，题目大意：众所周知，科技进步对我们的食物种类和质量产生许多影响，有些人认为这种改变是一种进步，有些人认为这种改变是有害的，讨论双方并给出你的观点。

　　高分范文示例

　　Scientific advances have an impact on many aspects of our lives, including food. I believe that the increase in food varieties can be beneficial to mankind, although there are some problems.

　　The development of food technology can be beneficial to the health of many people. This is because they are provided with a wider range of high-quality choices to adopt a balanced diet. For example, some perishables such as fruit and vegetables can be preserved and made available for people in cold climates.Some diet supplements have also been developed to improve the nutrition of our diet and promote our well-being.

　　On the other hand, some people argue that the application of advanced food technology can pose health risks, although it can give us more options in our diet. Genetic engineering, for instance, modifies the genetic characteristics of natural crops, but the health consequence of eating these crops is yet to be known. In addition, some chemicals have been used to increase the shelf life of some foodstuffs, despite the fact that these chemicals can harm our health.

　　In my view, the agricultural industry is able to feed a growing population because of technological advances. The main reason for this development is that technology makes a variety of crops resistant to pests and diseases and also enables these crops to grow faster. This can boost food production. These emerging technologies are especially important for developing countries or heavily populated countries, where many people suffer from malnutrition.

　　相关词汇和语法结构

　　Perishable  易腐物品（食物）

　　diet supplements  饮食补充剂

　　improve the nutrition of our diet  改善饮食营养

　　Genetic engineering  基因工程

　　increase the shelf life  延长保质期

　　feed a growing population  养活增长的人口

　　heavily populated countries  人口密集度高的国家

　　malnutrition  营养不良