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雅思写作小作文流程图考官范文:自然界的碳循环

2017-07-18 10:37:27来源:网络 柯林斯词典

  新东方在线雅思频道特为大家收集整理了雅思写作小作文流程图考官范文:自然界的碳循环。雅思写作考官范文很适合烤鸭研读模仿,在研读及模仿过程中,可以帮助我们检验自己的写作水平,并能很好地吸收和应用优秀范文里的优秀内容~更多雅思报名官网的最新消息,最新、最专业的雅思备考资料,新东方在线雅思网将第一时间为大家发布。

  >>>更多请点击:雅思写作Task 1小作文考官满分范文

  The diagram below illustrates the carbon cycle in nature.Write a 150-word description of this diagram for a university lecturer.

雅思写作小作文流程图考官范文:自然界的碳循环

  范文

  The diagram shows how carbon moves through various stages to form a complete cycle. This report will give a brief description of the main stages in this cycle.

  First, we can see that energy from the sun is transformed into organic carbon through a process in plants known as photosynthesis. This organic carbon is then transferred underground when plants, and the animals that feed on them, die and decay. Some of this carbon is trapped underground in the form of fossils and fossil fuels.

  Carbon is also released back into the atmosphere, however, through various means. One is when animals and plants respire, and another is when humans burn fossil fuels in cars and factories. All this carbon enters the atmosphere as CO2. It is then reabsorbed by plants, and the cycle begins again.

  Overall, we can see that carbon moves in a natural cycle, although human factors may now be affecting the balance.

  (154 words)


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