阅读段落

　　One glaring disadvantage of pesticides' application is that, while destroying harmful pests, they also wipe out many useful non-targeted organisms, which keep the growth of the pest population in check. This results in what agroecologists call the 'treadmill syndrome'. Because of their tremendous breeding potential and genetic diversity, many pests are known to withstand synthetic chemicals and bear offspring with a built-in resistance to pesticides.

　　段落大意

　　本段介绍了使用杀虫剂的明显弊端：杀死了抑制害虫的生物;害虫抵抗化学制品。

　　阅读笔记

　　Disadvantage of pesticides' application:

　　Wipe out useful non-targeted organisms(control growth of pest)→ 'treadmill syndrome'

　　Tremendous breeding potential + genetic diversity→withstand synthetic chemicals & bear offspring with built-in resistance

　　逻辑关系

　　1. 因果(逻辑连接词: BECAUSE OF)

　　Their tremendous breeding potential and genetic diversity.

　　Many pests are known to withstand synthetic chemicals and bear offspring with a built-in resistance to pesticides.

若想获取更多详尽出国留学攻略以及雅思培训资讯，可以打开我们【上海新东方雅思网】，涵盖雅思培训，雅思写作、口语、听力、阅读以及留学名校介绍等。上海新东方雅思网在这里预祝各位考生学习顺利，都能考取自己满意的学校。