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  3. Proponents of organic farming claim that using chemical fertilizers and pesticid

Proponents of organic farming claim that using chemical fertilizers and pesticid

游客2025-02-26  49
问题 Proponents of organic farming claim that using chemical fertilizers and pesticides in farming is harmful’ to local wildlife. To produce the same amount of food, however, more land must be under cultivation when organic farming techniques are used than when chemicals are used. Therefore, organic farming leaves less land available as habitat for local wildlife. Which one of the following is an assumption on which the author’s argument depends?
选项 A、Chemical fertilizers and pesticides pose no health threat to wildlife.
B、Wildlife living near farms where chemicals are used will not ingest any food or water containing those chemicals.
C、The only disadvantage to using chemicals in farming is their potential effect on wildlife.
D、The same crops are grown on organic farms as on farms where chemicals are used.
E、Land cultivated by organic farming methods no longer constitutes a habitat for wildlife.
答案 E
解析 本题的结论是，有机农业因占用了更多的土地而使野生动物生活的领地减少，而只有在野生动物的生活范围不涉及有机农业的土地时，上述结论才能成立。因此(E)中的陈述：“用有机农业方法耕作的土地不再含有野生动物的栖息地”是作者论述依赖的假设，其余几个选项都是明显错误的。
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