“雅思词丫儿”——农作物害虫

发布时间:2016/09/06 作者:小歪

今天学为贵的丫丫老师和大家分享有关农作物害虫的雅思词汇,真经重点词汇汇整,一定要收藏学习哦,还有独家雅思资讯随时为您提供,这就赶紧关注学为贵官网吧~

1. But within a few years, cotton pests like bollworm and aphids plague the fields, and the farmers saw how rapid insect evolution can be. 〈机经〉

(重点词汇)

pest: 害虫 (pesticide:杀虫剂)

bollworm: 一种蛾的幼虫

aphid: 蚜虫

plague: n.瘟疫;v.折磨,使受灾害

insect: 昆虫(insecticide:杀虫剂)

evolution: 进化(动词: evolve)

Repeated spraying killed off the weaker pests, but left ones most resistant to pesticides to multiply. At the same time, the pesticides killed off birds, beetles, spiders, and other predators that had once provided natural control of pest insects.

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(词汇练习)

spraying :

resistant (名词形式):

pesticide(同替):

predator / prey:

provide(同替):

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