托福机经综合写作范文分享-（全球变暖问题）  本次考试的综合题目和独立题目，难度适中，综合写作虽然不是以往重复过的题目，但是有过类似话题，独立任务更是常见原题，所以大家积极去刷以往的真题，多拓展思路，精准审题，丰富展开例证，祝取得好的成绩。

　　综合写作

　　话题分类生态

　　考题回忆总论点为缓解全球变暖，向空中释放二氧化硫的火箭有三个问题

　　阅读部分1. 产生酸雨，破坏环境

　　2. 价格很高，不划算

　　3. 效果不明显

　　听力部分1. 酸雨也没有这么容易形成，需要特定条件，水汽少的时候不容易形成酸雨

　　2. 还有其他的办法，但是其实更昂贵

　　3. 有用的，即使温度变化很小，对缓解冰川融化有用。

　　解题思路阅读部分仔细看，很多时候能够给我们一些听力内容方面的提示。

　　听力的细节一定尽可能的给全。

　　参考范文Both reading and listening talks about how global warming has been deteriorating. According to the reading, there are three problems with the rocket that releasing sulfur dioxcide into the air, yet the professor in the listening casts doubt on the statement in the reading.

　　First, the reading points out the fact that it may produce acid rain, which affects the environment negatively. Yet the listening part explains that in fact acid rain is not that easy to produce; instead it only rains under specific condition. Specifically, there won't be acid rains when vapor is little. In this case, it's almost impossible to produce acid rain every time.

　　Second, the passage presents that the rocket costs a lot, which is not worthy at all. However, the listening makes it clear that indeed other ways are available, yet they are more expensive. So the price is quite fair to launch the rocket.

　　At last, the effect brought from rockets is little. But the professor mentions that it is effective actually. Even though the temperature hasn’t changed too much, it can alleviate glaciers melting. ［181］