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本听力材料来自于老托partb，partc，是公认实施有效的听写材料，对于上手托福时间不长的同学非常适合。我曾经一次短时间备考听力提高了7分也归功老托。希望大家和我一样一定要坚持下来噢。相信坚持学习的同学听力上都会有很大的飞跃！
Nopain, no gain.我们的安排是这样的，第一遍用听力软件精听材料（建议做单句听写，听写的时候不要偷看我给的挖空题），然后按照我给的挖空题填关键词，回复后即可看到听力原文和文章精解，我将把难点和易错点oneby one 分析给大家。
回复填空答案格式如下：1____2____3____...et.al.
To us, the environment in which fish dwell often seems cold, dark, and mysterious. But there are advantages to living in water, and they have played an important role in making fish what they are. One is that water isn't_____to sudden temperature changes. Therefore it makes an excellent habitat for a_______animal. Another advantage is the water's ability to easily support body weight.________has________the same density as water, so a fish in water is almost______. This "weightlessness" in turn means two things: One, a fish can get along with a light weight and simple bone structure, and two,_______to a fish's size are practically removed. Yet there is one basic difficulty to living in water—the fact that it's______. For a fish to move through water, it must actually_______it aside. Most can do this by_______back and forth in_____motion. The fish pushes water aside by the forward motion of its head, and with the curve of its body and its flexible tail. Next, the water flows back along the fish's narrowing sides, closing in at the tail, and helping the fish_____itself forward. The fact that water is incompressible has______shaped the development of fish. A flat and______shape can be moved through water only with difficulty. And for this reason, fish have a basic shape that is beautifully adapted to deal with this_______.
