Re: [請益] TPO2 The origins of cetaceans

看板TOEFL_iBT (TOEFL_iBT托福)作者Merica (美加文教)時間14年前 (2011/09/17 14:00)推噓0(0推 0噓 0→)

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※ 引述《pichu7 ()》之銘言： : It should be obvious that cetaceans-whales, porpoises, and : dolpins-are mammals. They breathe through lungs, not through gills, : and give birth to live young. Their streamedlined bodied, the : absence of a hind legs, and the presence of a fluke and blowhole : cannot disguise their affinities with land dwelling mammals. : However, unlike the case of sea otters amd pinnipeds (seals, sea : lions, and walruses, whose limbs are functional both on land and : at sea), it is not easy to envision what the first whales looked : like. Extinct but already fully marine cetaceans are known from the : fossil record. How was the gap between a walking mammal and a : swimming whale bridged? Missing until recently were fossils clearly : intermediate, or transitional, between land mammals and cetaceans. : 題目 : 1. In paragraph 1, what dose the author say about the presence of : a blowhole in cetaceans? : 答案為(2)It cannot conceal the fact that cetaceans are mammals. : 我選(4)It cannot yield clues about the origins of cetaceans. : 請問為什麼答案不是(4)?? 同學你好： the presence of a blowhole後面的動作是不能掩飾（cannot disguise）他們和陸地上哺乳動物的類同 →換個方式說，就是答案（2） conceal＝disguise 答案（4）不合理，因為presence of a blowhole後面完全沒提到 not yield clues的內容。以上內容由美加心宥老師提供 http://www.merica.com.tw/course/teacher_data.html?teacherid=035 -- ▅▅▅▅ ▅▅ ▅▅▅ ▅ ▅▅ ▅▅▅ █ █ █ █▅ █▄█ ▄ █ █▄█ █ █ █ █▄ █◥▅ █ █▅ █ █ -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 114.36.63.101