雅思考试主要是通过对考生听、说、读、写四个方面英语能力的考核，综合测评考生的英语沟通运用能力，实现“沟通为本”的考试理念。对于雅思考生来说，也有很多考试难点和政策盲区需要帮助解答。今天雅思无忧网小编准备了文章雅思阅读练习之单调综合症，希望通过文章来解决雅思考生这方面的疑难问题，敬请关注。
阅读段落
By the mid-1960s, the situation took an alarming turn with the outbreak of four more new pests, necessitating pesticide spraying to such an extent that 50% of the financial outlay on cotton production was accounted for by pesticides. In the early 1970s, the spraying frequently reached 70 times a season as the farmers were pushed to the wall by the invasion of genetically stronger insect species.
段落大意
本段介绍了这种“单调综合症”发展到后期令人无法忍受的情形：每季度喷洒70次农药。
阅读笔记
Mid-1960s：50% of financial outlay on cotton production——pesticides
Early 1970s：70 times a season & invasion of genetically stronger insect species
逻辑关系
1. 并列(无逻辑连接词)
By the mid-1960s, the situation took an alarming turn with the outbreak of four more new pests, necessitating pesticide spraying to such an extent that 50% of the financial outlay on cotton production was accounted for by pesticides.
In the early 1970s, the spraying frequently reached 70 times a season as the farmers were pushed to the wall by the invasion of genetically stronger insect species.
(编辑：罗伟)
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