Re: [請益] TPO11 begging by nestlings

看板TOEFL_iBT (TOEFL_iBT托福)作者promajesty時間15年前 (2011/01/10 13:52)推噓1(1推 0噓 0→)

留言1則, 1人參與討論串2/3 (看更多)

※ 引述《cloudballoon (氣球雲)》之銘言： : Paragraph 4：Given that predators can make it costly to beg for food, what benefit do begging : nestlings derive from their communications? One possibility is that a noisy baby bird provides : accurate signals of its real hunger and good health, making it worthwhile for the listening : parent to give it food in a nest where several other offspring are usually available to be fed. If : this hypothesis is true, then it follows that nestlings should adjust the intensity of their signals in : relation to the signals produced by their nestmates, who are competing for parental attention. : When experimentally deprived baby robins are placed in a nest with normally fed siblings, the : hungry nestlings beg more loudly than usual—but so do their better-fed siblings, though not as : loudly as the hungrier birds. : Paragraph 5：If parent birds use begging intensity to direct food to healthy offspring capable of : vigorous begging, then parents should make food delivery decisions on the basis of their offsprings : calls. Indeed, if you take baby tree swallows out of a nest for an hour feeding half the set and starving : the other half, when the birds are replaced in the nest, the starved youngsters beg more loudly than : the fed birds, and the parent birds feed the active beggars more than those who beg less vigorously. : 9. In paragraphs 4 and 5, what evidence supports the claim that the intensity of nestling : begging calls is a good indicator of which offspring in a nest would most benefit from a feeding? : ○ When placed in a nest with hungry robins, wellfed robins did not beg for food. : ○ Among robin nestlings, the intensity of begging decreased the more the nestlings were fed. : ○ Hungry tree swallow nestlings begged louder than well-fed nestlings in the same nest. : ○ Hungry tree swallow nestlings continued to beg loudly until they were fed whereas well-fed : nestlings soon stopped begging. : ###想知道為何B不行答案是C : 10. It can be inferred from paragraphs 4 and 5 that parent songbirds normally do not feed : ○ nestlings that are too weak to beg for food as vigorously as their nestmates : ○ more than one hungry nestling during a single visit to the nest : ○ offspring that were fed by the parents on the previous visit to the nest : ○ nestlings that have been removed and then later put back into their nest : ###想知道為何C不行答案是A : 懇請大大們幫忙解釋一下!!! 關於Q10 以下是個人淺見: 此題為推論題(是個"換句話說題") 題目的關鍵字是名詞子句的parent songbirds 回原文發現是考在段落5的第一句話(假設語氣)的內容 If S+V, S+V. 作題時還是看主要子句的部份大意是 "parents 給食物基於叫聲" 逗號前的條件大意是會哭餓大聲的幼鳥=有活力健康, then 食物給牠關鍵字 intensity 所以依照原文此句選A 且發現原文的vigorous是形容詞選項A以副詞方式呈現原文所講的intensity 以weak來表達是有關於聲音強度至於選項C 鎖定的句子沒有表達這方面的訊息所以應該是您定位到indeed的內容了而覺得應該選跟"時間前後"有關的選項 -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 218.160.112.218