第三步,写出中心论点,比如 Though China is making efforts to clean its air, it will be a long time before benefits are seen and problems will continue to arise.
第四步,根据记忆写每一个段落的作用,比如 Background information, current problem, elucidating ways to read information given, return to problem and potential short-term solution, problems for that as well. Conclusion no clear cut solution but changes are being made.