閱讀段落

　　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

　　本段介紹了這種單調綜合癥發展到后期令人無法忍受的情形：每季度噴灑70次農藥。

　　閱讀筆記

　　Mid-1960s：50% of financial outlay on cotton productionpesticides

　　Early 1970s：70 times a season invasion of genetically stronger insect species

　　邏輯關系

　　1. 并列

　　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.