推 chenemily:謝謝 09/30 08:23
因為除了C選項之外，其他的都是weaken或無關
※ 引述《chenemily (天天保持好心情)》之銘言：
: The Eurasian ruffe, a fish species inadvertently introduced into North America
: ’s Great Lakes in recent years, feeds on the eggs of lake whitefish, a
: native species, thus threatening the lakes’ natural ecosystem. To help track
: the ruffe’s spread, government agencies have produced wallet-sized cards
: about the ruffe. The cards contain pictures of the ruffe and explain the
: danger they pose; the cards also request anglers to report any ruffe they
: catch.
題目的因果關係：因為ruffe被不小心的引進了五大湖區，而ruffe是吃當地的白魚卵
為主要食物，因而威脅到當地的生態環境，故為了追蹤其分佈，政府製作了口袋大小
的卡片，上面有ruffe的照片及其對環境的危害，並要求釣到ruffe的人要回報。
: Which of the following, if true, would provide most support for the
: prediction that the agencies' action will have its intended effect?
題目要的是支持，所以依原題的因果關係，能夠使當地釣客願意協助政府追蹤ruffe
散佈情形的答案就是正解
: A. The ruffe has spiny fins that make it unattractive as prey.
無關選項，ruffe容不容易被其他生物捕食不是題目問的重點
: B. Ruffe generally feed at night, but most recreational fishing on the Great
: Lakes is done during daytime hours.
weaken，既然大部分ruffe是在晚上覓食而釣客是在白天釣魚，那麼這些釣客應該很
難釣到ruffe，也就是政府的做法會沒有效果
: C. Most people who fish recreationally on the Great Lakes are interested in
: the preservation of the lake whitefish because it is a highly prized game
: fish.
支持，既然當地的人會對於白魚的保育有興趣，他們應該會對於危害白魚生存的ruffe
有一定的注意，也就是說政府的做法應該會有效
: D. The ruffe is one of several nonnative species in the Great Lakes whose
: existence threatens the survival of lake whitefish populations there.
無關選項，題目只問ruffe，提到其他nonnative species一定無關
: E. The bait that most people use when fishing for whitefish on the Great
: Lakes is not attractive to ruffe.
無關選項，就算是事實好了，也無法解釋釣客的喜好及他們可能的行為
: 請問c 哪理是支持阿
: 不是說為了要track the ruffe's spread 所以做了一堆事情
: c是在講釣客的行為
: 我怎麼覺得是無關
: 謝
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