The reading passage claims that the neck posture of sauropods was horizontal. However, the lecturer gives several reasons as a rebuttal to the author’s point.
First, the professor in the listening argues that an unusual position of sauropod’s tail is not an evidence of its horizontal neck position because its tail is not heavy. Its tail is slender compared to its neck. Also, the bone of its tail is hollow and filled with air. Therefore, there is no need for sauropods to hold their neck horizontally to keep balance. Thus, this refutes reading passage’s argument that the dinosaurs must have had to maintain their neck horizontally because of their tail.
Second, the lecturer insists that a sauropod’s diet which was mainly consisted of marine vegetation did not make its neck posture horizontal. There was not enough marine vegetation for the dinosaur, which was large, to eat. They must have fed more various types (단/복수) of plants. Therefore, their neck would have been rather upright than horizontal to reach a variety of foods. Thus, this casts a doubt on the reading passage’s assertion that in order to eat marine vegetation, which was near the water’s surface, sauropods would hold their neck horizontally.
Finally, the lecturer argues that a sauropod’s weak neck muscles cannot be a reason for its horizontal neck position. The lecturer agrees that its neck muscles are weak. However, it had strong shoulder muscles, which are (수동태) connected to the (관사) neck, with special bone. Its shoulder muscles would allow it to lift the neck vertically. Therefore, this counters reading passage’s insistence that weak sauropod’s neck muscles cause the neck to be horizontal.
As a result, the professor in the listening asserts that the posture of sauropods must have not been horizontal because of its light tail, various diets, and strong shoulder muscles.
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1. introduction의 분량을 3문장 이상으로 늘려주세요.
2. 결론을 얕은 수준에서 가볍게 건드리는 것보다는,
결론을 빼시고 본론을 더 추가하여 깊이감 있게 서술하는 편이 좋을 것 같습니다.
3. evidence 는 불가산 명사입니다. 따라서 복수형이 오거나 앞에 a/an 관사가 붙을 수 없습니다.