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托福口语Task6范文解析:自然界调节植物数量的方式

2017-10-11编辑: 环球教育整理来自: 环球教育

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  托福口语Task6话题:自然界调节植物数量的方式

  讲座中教授讲述了自然界两种调节植物数量的方式。先说主题,再阐述主题下面的两个分论点。

  参考范文:

  In the lecture, the professor mainly talks about 2 ways that the nature controls the number of plants. The first one is that the plants will compete with each other when they have grown too crowded. For example, when some plants have stronger mechanism to have photosynthesis, or their roots can absorb water and nutrients better, they will naturally outgrow other plants. The second way is the environment control. Here the professor uses flood as an instance to explain it. During summertime when plants usually grow too well, there will be flood in those areas. In this case the water can rise up to cover the roots of plants. Hence the plants have to stop growing for a while. Those are the 2 ways that the professor talks about how the nature controls the number of plants.

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