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[老师已改] 雅思写作——[A类][Test 4][剑10] 小作文,请老师批改,谢谢!

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发表于 2016-2-13 16:58 |显示全部楼层
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The diagrams illustrate the life period of salmon which is a kind of big fish.
As can be seen from the first diagram. The tiny salmon eggs are produced close to small stones and under reeds which is located in slow moving upper river. It takes about 5-6 months to turn into the fry which is 3-8cm long. Then the fry will swim to the lower river. The water current is fast flowing at there. In this surrounding, the fry will live approximate 4 years and become the smolt about 12-15cm big. After that, the smolt is likely to travel to open sea and exists almost 5 years. In this period, the smolt will grow into the adult salmon. The length of adult salmon is 70-76cm that is extremely larger than the smolt. Finally, the adult salmon will swim back to upper river and the whole cycle starts again.
Overall, the diagrams show that the stage of the salmon from tiny eggs become large fish through a very long time.

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