阅读段落 In the face of the escalating perils from indiscriminate applications of pesticides, a more effective and ecologically sound strategy of biological control, involving the selective use of natural enemies of the pest population, is fast gaining popularity - though, as yet, it is a new field with limited potential. The advantage of biological control in contrast to other methods is that it provides a relatively low-cost, perpetual control system with a minimum of detrimental side-effects. When handled by experts, bio-control is safe, non-polluting and self-dispersing. 段落大意 本段介绍了一种新型更有效、生态更健康的生物防治手段(廉价、永久控制，有最小的副作用)。 阅读笔记 Strategy of biological control：more effective and ecologically sound Fast gaining popularity <> new field with limited potential Advantage： low-cost, perpetual control system & minimum of detrimental side-effects 逻辑关系 对比(逻辑连接词: THOUGH) In the face of the escalating perils from indiscriminate applications of pesticides, a more effective and ecologically sound strategy of biological control, involving the selective use of natural enemies of the pest population, is fast gaining popularity. As yet, it is a new field with limited potential. |
