雅思写作课程-task1新课件.ppt

审题练习 * 剑桥4---TABLE P31 * 审题练习 * 剑8 test 1 * 同意词替换：cause of degradation 改变词性：主语 land + 动词 degrade 形容词degrading + 名词 land 同义词：reason/contributing factor * Paragraph 1 The pie chart shows that there are four main causes of farmland becoming degraded in the world today. 转述题目 Globally, 65% of degradation is caused by too much animal grazing and tree clearance, constituting 35% and 30% respectively.(分词状语后置) A further 28% of global degradation is due to over-cultivation of crops. Other causes account for only 7% collectively. (features) * Paragraph 2 承上启下：These causes affected different regions differently in the 1990s, with Europe having as much as 9.8% of degradation due to deforestation,(介词状语后置) while the impact of this on Oceania and North America was minimal, with only 1.7% and 0.2% of land affected respectively. (介词状语后置) Europe, with the highest overall percentage of land degraded (23%), (介词做插入语) also suffered from over-cultivation (7.7%) and over-grazing (5.5%). In contrast, Oceania had 13% of degraded farmland and this was mainly due to over-grazing (11.3%). North America had a lower proportion of degraded land at only 5%, and the main causes of this were over-cultivation (3.3%) and, to a lesser extent, over-grazing (1.5%). * Conclusion Overall, it is clear that Europe suffered more from farmland degradation than the other regions, and the main causes there were deforestation and over-cultivation. 总结 * 剑桥8, P162 The pie chart shows that there are four main causes of farmland becoming degraded in the world today. Globally, 65% of degradation is caused by too much animal grazing and tree clearance, constituting 35% and 30% respectively. A further 28% of global degradation is due to over-cultivation of crops. Other causes account for only 7% collectively. These causes affected different regions differently in the 1990s, with Europe having as much as 9.8% of degradation due to deforestation, while the impact of this on Oceania and N