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标题: 2018 Verb 281题 duration 介词问题 [打印本页]

作者: 阿篱520 时间: 2017-10-18 11:00
标题: 2018 Verb 281题 duration 介词问题
Schistosomiasis, a disease caused by a parasitic worm, is prevalent in hot, humid climates, and it has become more widespread as irrigation projects have enlaged the habitat of the freshwater snails that are the parasite's hosts for part of its life cycle.
(A) the freshwater snails that are the parasite's hosts for part of its life cycle
(B) the freshwater snails that are the parasite's hosts in part of their life cycle
(C) freshwater snails which become the parasite's hosts for part of its life cycles
(D) freshwater snails which become the hosts of the parasite during the parasite's life cycle
(E) parasite's hosts, freshwater snails which become their hostsduring their life cycles

此题答案选A，结合CD的讨论和OG的解释整体都很清晰，但OG上有一个解释我不是很明白，请NN们帮忙看一下：
关于答案B，OG解释说对于duration的介词，不能用in，可以用for , 可是life cycle是可以与in搭配的啊，请NN们指点一下，谢谢~~~

作者: krystalchenkkk 时间: 2017-10-25 17:43
个人觉得：
这里的意思是 for part of its life cycle，在这段时间内，是寄生虫的寄主；
相反， in part of their life cycle ，表达的就是在life cycle的某一个节点上。
但是也不是完全不能用in吧，只是for更好~

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