新一輪中考復習備考周期正式開始，中考網(wǎng)為各位初三考生整理了中考五大必考學科的知識點，主要是對初中三年各學科知識點的梳理和細化，幫助各位考生理清知識脈絡，熟悉答題思路，希望各位考生可以在考試中取得優(yōu)異成績！下面是《2018初中英語寫作之農(nóng)藥對人類的影響》，僅供參考！
Chemical pesticides are found to cause significant attritional effects to the nervous system and immune system after prolonged exposure.
Chemicals pesticides are believed to cause illness by a variety of ways. Their harmful effects is obvious.New scientific research is uncovering some important negative health-related issues associated with pesticide use. For example,pesticides were identified by a National Cancer Institute study as a likely cause of elevated rates of certain cancers among farmers.
Farmers are at higher risk than the general population for certain cancers: non-Hodgkin‘s lymphoma, skin melanomas, multiple myeloma, leukemia, and cancers of the lip, stomach, prostate, and brain.
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