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[TPO模考软件批改中] 托福写作——[综合+独立][TPO 43]临近考试,需要磨刀,求老师狠批,目标27

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发表于 2018-2-13 22:25 |显示全部楼层
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Question:Question: Summarise the points made in the lecture, being sure to explain how they cast doubt on specific points made in the reading passage.  The reading passage offers three theories about how agnostids may have lived in acient time while the lecture rejects them all.
  Firstly, the reading passage shows that agnostids may have been free-swimming predators because other types of primitive arthropods were found as good swimmers and predators. However, the lecture argues free-swimming predators usually had well developed eyes while agnostids had poor visible ability, which means agnostid could not be a predators. In addition, paleontologists did not find evidence which could proof agnostids used other organs to detect prey from fossil records.
  Secondly, the reading passage considers agnostids as seafloor dwellers because some original arthopods lived that ways. But the lecture disagrees with it because seafloor dwellers which usually ocuppied one area could not move fast and travel to long distance, while agnostids were found in a large range of area which means they could move fast to a far place.
  Finally, the reading passage suggests that agnostids might be parasites which relied on larger organisms because many modern-day arthropods exist in this way. In contrast, the lecture refutes it because the population of parasites could not be too large, or they could kill the organisms which they fed off. And the fossil records of agnostids were revealed that they had a large population in one particular area.


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