作者：北美考试院 托福写作组 李砚丹
题目解析：
这场考试涉及到的话题是生物，属于在综合考试中高频出现的话题。具体涉及的内容，是讨论某一种生物的特征，并提出相关猜想。
TPO中可参考的相关练习有TPO10、15、17、23、47、48。
可以类比下列TPO的综合写作
TPO 47 翼龙是否能进行动力飞行
阅读：翼龙不能动力飞行
• 翼龙是冷血动物，无法提供所需要的能量
• 翼龙太重了，无法靠扇动翅膀使自己在空中停留较长时间
• 翼龙后腿肌肉较弱，无法使自己从地面起飞
听力：以上三个说法都有缺陷
• 翼龙体表的皮毛说明它们可能是温血动物
• 翼龙的骨骼是空心的，降低了它们的体重
• 翼龙使用四肢起飞，而不仅仅是后肢
题目解析：
这场考试的题目相信很多同学都不会觉得陌生了，这是一道之前反复出现过的题目，最近一次是2019年3月9日。看到题目中出现“most”这个“词”，很多同学可能会想到不赞同这个观点，然后用让步转折的结构来成文。这篇文章也可以用其他方法来构思，因为题干中出现了problems这个词，我们可以用下义词发散法来发散这个词，并形成思路。
可以参考以下范文：
Throughout history, mankind has industriously brought new changes and developments to this world and to our civilized society. Particularly, the speed at which we progress is boosted exponentially after industrialization. Under this circumstance, some optimists contend that at this trend, we humans can solve the most important problems in our society during our own lifetime. However, I hold the opposite view and cannot concur.
Initially, the protection of environment still has a long way to go. Albeit the small steps we already took in terms of preserving the environment, a list of incidents remind us that our technology is not yet mature enough to solve most problems. Let me just name a few: no animals that suffered extinction have been brought back to nature, although the technology of clones was invented decades ago; oil leakage has always been a headache, because no effective way has been put forward to clean the ocean thoroughly once it has been stained by black sticky petrol.
Further, if the year 2020 has taught all humans anything at all, it should be a common lesson: knowledge we have about viruses might be scarcer than we thought. The discovery of antibiotics and many other medical milestones saved millions of lives, yet our hands are still tied when faced with a new virus bestowed by nature, Covid-19, for example. Tens of thousands of lives are taken away, along with the once prosperous daily life. Instead, shut down and medical masks are starting to shape our daily routines. Who knows what other 'surprises' that nature has prepared for us in our lifetime?
Last but not least, despite the continuous improvements politicians and activists brought to the systems of modern society, unbalanced distribution of resources and disparity are something that can hardly be shaken off. While the rich get richer, the poor get stuck. With the limited resources that the earth provides, no matter how much productivity can be promoted, people's desire for material life is like a black hole that can never be filled. Even in the most developed countries, people who suffer from illness, poverty and inequality are no news. We seem destined to fight against each other, living under the same sky.
All in all, I argue that the statement that the most important problems in our society can be solved during our own lifetime is nothing more than an empty slogan.
