2018年2月10日雅思写作真题小作文Task1原创范文
2018年2月10日 雅思写作范文解析
小作文
类型
线图
题目
范文解析
解析：本图形为两个线性图混合，并不复杂，只需要每个图形趋势特点单独描述即可。第一幅图总体趋势上升，中间有一处波动。第二幅图可以每一条线单独描述趋势变化，也可以按照时间段（1980-1990,1990-2000）对比描述。范文全篇8句话。
范文
Presented are two line graphs illustrating how the area of the ozone hole changed above the Antarctic and how emissions of three distinct poisonous gases altered over two decades from 1980 to 2000.
As reflected in the first chart, it is evident that the ozone hole was generally expanding. Specifically, initiating from roughly 400 thousand square km, its size gradually expanded until 1990 when it more than quadrupled, followed by a slight decline before growing steadily by the end of the period, reaching nearly 4000 thousand square km.
In 1980, while the largest amount of emissions (70 million tonnes) were derived from CFC-11, less than half of those came from CFC-12(30) and no N2O was exhausted at all. After plateauing for three years, CFC-11was controlled effectively as a stable downward trend could be noticed and in 2000 only a margin of it was released. By contrast, there was a slowly rising trend in CFC-12 discharging which approximated 60 million tonnes in the last year. Also noteworthy is that since 1990, N2O had began to be released at an accelerating rate, overtaking CFC-11 in1994 and arriving at about 40 million tonnes in 2000.
Overall, the ozone hole had been enlarged over the decades with more and more CFC-12 and N2O being released while less CFC-11 was emitted.
范文原创自小站老师Alice.Hua
字数
215 words
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