本场综合写作属于“质疑已有方法—回击质疑”的形式，阅读材料中对某个解决问题的方法提出质疑，而听力则一一回应阅读提出的问题，指出这些问题都可以解决或者不足为惧。在TPO中，这种形式还是比较常见的，比较具有代表性的有TPO 50, TPO 41, TPO40，TPO37，TPO22，TPO19,TPO13等。
Keywords: sulfuric dioxide; global warming; acid rain; water vapor; emission
TPO 50 控制某个湖泊的湖水含盐度持续上升的办法
Nothing concerns people more than their health condition does, whichever life stage they are struggling with. Typically, hardly could people reach a consensus regarding whether or not it is becoming easier to stay healthy these years than in the past. From my perspective, I believe it is indeed much easier today for people to keep in a good shape than it was in the past days.
Some may claim that people are faced with a lot more problems threatening their health condition: pollution, pressure, processed food, etc. It seems like the accelerating pace of modern life is the root of all evil. However, an obtrusive bias exists here. It is just people are paying more attention to these problems, which means they have existed long before people noticed them; they have been there affecting people’s health all the way from past to present. So it is arbitrary to overemphasize these long-existing issues and thus attribute all the health problems to them.
Furthermore, progress in agriculture is one of many considerable positive contributors to people’s well-being in the present world. For example, a wider access to a balanced diet, which is acknowledged as the most crucial factor to one’s physical well-being. Thanks to the great advancement in agriculture, the yield of all categories of crops and livestock worldwide has been significantly improved within the last century. As a result, a diverse and balanced diet with sufficient nutrients is available to the vast majority all over the globe. By contrast, what happened in the past, say 50 years ago, was that people were still worried about how to intake enough calories to stay alive, not to mention any consideration about how to eat healthily.
In addition, groundbreaking achievements in medical field also facilitate the maintenance of a good health condition. Here we can take some kinds of antibiotics as an example. In the past, since the manufacturing process was so inefficient that the yield had been so small, certain antibiotics, such as penicillin, could be very expensive and thus unaffordable to the ordinary individuals. People even died from some usual colds or infections. However, as the core techniques in the micro-bioengineering evolved, the productivity, as well as the kinds of antibiotics, has been increasing continuously, which dramatically drags down the prices of various antibiotics. This breakthrough in microbiology alone has already saved numerous lives; its effect on people’s general health is quite self-evident then.
Based on what is mentioned above, it is obvious that people are better able to maintain health in the current era than in the past.