Adelaaa

 The Origins Of Cetaceans 鯨類動物起源 解答 (1)

參考答案

(1) ：2

理由： This is a Factual Information question asking specific information that can be found in paragraph 1. Choice 2 is the best answer. It is essentially a rephrasing of the statement in paragraph 1.that blowholes cannot disguise cetaceans’ affinities with other mammals. The other three choices are refuted, either directly or indirectly, by that paragraph.

(2) ：1

理由： This is an Inference question asking for information that can be inferred from paragraph 1. Choice 1 is the best answer because paragraph 1. says that sea otters are unlike early mammals whose appearances are not easy to imagine. By Inference, then, the early appearance of sea otters must be easy (or not difficult) to imagine.

(3) ：3

理由：This is a Vocabulary question. The word tested is precious. It is highlighted in the passage. The correct answer is choice 3, “valuable.” Anything that is precious is very important and therefore valuable.

(4) ：3

理由： This is a Factual Information question asking for specific information that can be found in the passage. Choice 3 is the best answer. Paragraph 3 describes the differences and similarities between Pakicetus and modern cetaceans. Sentence 3 of that paragraph states that their skulls are similar. The other three choices describe differences, nor similarities.