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The insecticide proved (i)______; by killing the weak adults of a species, it as
The insecticide proved (i)______; by killing the weak adults of a species, it as
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2025-02-20
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问题
The insecticide proved (i)______; by killing the weak adults of a species, it assured that the strong ones would mate among themselves and produce offspring still more (ii)______ to its effects.
选项
A、ineffective…hostile
B、cruel…vulnerable
C、feasible…susceptible
D、necessary…immune
E、counterproductive…resistant
答案
E
解析
空格(ii):
- 方程等号:and连接平行结构,前后句意同义重复。
- 强词和对应:it指代insecticide(杀虫剂)。根据题意,杀虫剂通过杀死物种中弱小的成虫,确保了强大的成虫之间的交配,空格(ii)和strong根据and构成同义重复,体现强大成虫的后代对于杀虫剂的效果也是具有“强大抵抗作用”的。hostile敌对的,vulnerable易受影响的,susceptible易受影响的,immune免疫的,resistant抵抗的。hostile体现的是对敌人(enemy)的敌意,与insecticide搭配不当。因此选项D和E合适。
空格(i):
- 方程等号:分号说明前后同义重复。
- 强词和对应:根据题意,分号后面说,杀虫剂杀了弱小的成虫,留下了强大的成虫,结果让强大的成虫的后代对杀虫剂有“抵抗作用”,因此空格(i)体现杀虫剂的效果是“不好的”,填入一个负向词。ineffective无效的(对),cruel残酷的(错),feasible可行的(错),necessary必要的(错),counterproductive反作用的(对)。综合空格(ii),答案选E。
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