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
可以类比下列这些TPO的综合写作。
TPO 50 控制某个湖泊的湖水含盐度持续上升的办法
阅读部分：
总观点：登陆火星的障碍
1. 往返耗时长，水、氧气、食物的补给问题难以解决
2. 长时间处于零重力环境有害健康，例如肌肉萎缩，骨密度下降
3. 太空辐射强，给飞船加防辐射盾又太重
听力反驳：
这三个问题都可以解决
1. 使用水培技术可以同时解决水、氧气、食物的补给问题
2. 规律运动和补充维生素矿物质等可以分别解决肌肉萎缩和骨密度下降的问题
3. 太空辐射不是一直都很强，可以做小盾，辐射强的时候就躲到小盾覆盖的区域中
TPO 40
阅读部分：
总观点：移民金星存在的三个问题
1. 大气压过高
2. 没有水和氧气
3. 金星表面太阳光很少，能量供应不足
听力反驳：
总观点：这三个问题都可以解决，让空间站飘在金星大气50km高空就行
• 50km空中大气压和地球上差不多；
• 金星上有很多化学物质，可以用它们通过化学反应来生产水和氧气；
• 50km高空，云层不那么厚因此接收的阳光会多一些，而且其他地方穿过云层的阳光也会有一部被反射回到空间站的位置，直射光加反射光够用了
题目解析：
3月13日的独立写作是非常经典的今昔对比类型，也是2019年考场版，2020年家庭版的原题重复。本题采用今昔对比题的经典解法即可，即“一切基于发展带来的变化”。某件事情在当下与过去产生了变化，核心原因必然是有些因素的发展导致了这个变化。例如此题，环境恶化可以是导致保持健康变难的一个因素；反过来，教育的发展导致人们越来越注重科学保健，这使保持健康比过去更加容易了。考生可以根据自己构思过程中，找到的变化点更加偏向的那一方，来确定立场，展开论证。本文选取“同意”的方向，稍作让步后，再从科技、经济两个个角度来展开，说明现在保持健康比过去更容易。
请参考如下范文：
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.
