問題 費費 TEST 3 Q52

[mimichang]

52. Birds need so much food energy to maintain their body temperatures that some of them spend most of their time eating. But a comparison of a bird of a seed-eating species to a bird of a nectar-eating species that has the same overall energy requirement would surely show that the seed-eating bird spends more time eating than does the nectar-eating bird, since a given amount of nectar provides more energy than does the same amount of seeds

The argument relies on which one of the following questionable assumptions

A. Birds of different species do not generally have the same overall energy requirements as each other
B. The nectar-eating bird does not sometimes also eat seeds
C. The time it takes for the nectar-eating bird to eat a given amount of nectar is not longer than the time it takes the seed-eating bird to eat the same amount of seeds
D. The seed-eating bird does not have a lower body temperature than that of the nectar-eating bird
E. The overall energy requirements of a given bird do not depend on factors such as the size of the bird, its nest-building habits; and the climate of the region in which it lives

ANS C
看不太懂這題是屬於WEAKEN的題目還是 ASSUMPTION? 還是都不是?

[Huang Hsin-Yi]

ASSUMPTION:那個選項(針對結論)成立,則結論才成立

結論:吃種子的鳥會花比較長的時間,比起吃花蜜的鳥,因為花蜜凍比較久~~~~~
前提:兩種鳥都要求同等的能量

(1) 違反前提,必錯
(2) 無關選項
(3)吃花蜜的時間沒有比吃種子時間長--這樣時間對等,才能得出結論
反之,如果吃花蜜比較久或花很難找,那吃花蜜就會比吃種子時間來的長囉

(4)討論溫度,無關
(5)討論SIZE,HABITS,扯太遠了

[mimichang]

Thank you so much for your help!