当学生写in-class essay进行论证时，有时会根据某些不确定的情况给出理由，以加强自己的观点。总之，随堂 essay也不会要求编写 reference，此时我们需要使用我们的联想能力。但这件事是否会发生我们不确定，因此，如果在客观现实中没有找到理由和例证，不妨大胆猜测，不远的将来，正是我们观点的立足点。
举个例子：
题目：去别的星球上寻找外星生命有没有必要？
如果我们仅看到已有的研究成果，那么只能说成：现在几乎一无所获
但是，如果我们放眼未来，或许可以找到更多的论证素材，比如：
未来1（悲观）：现在没找到，以后估计也很难（基于过去，延续趋势，强化无用的观点）
未来2（乐观）：现在没找到，以后会有很多新的发现（未来将改变现状，至于什么发现，全凭我们自己猜测了，比如新的生命体、新的生命存活方式、新的宜居星球、新的生命智慧等等）。
我们可以用这个推测未来的方式，去强化自己论点，或者去推翻别人论点。我们分别为大家举例示范。
实用句型：
It is fair to forecast that …
It can be well predicted that …
In the near future, it is predictable that…
It is widely believed by most scientists that ….
If the current trend continues, the situation will …
Even though …, we can reasonably predict that …
With the continuous advance in …, … can beforeseen.
Foreseeably, … will soon/ sooner or later be …
In order to trigger more … in the future, we need to continue doing …/ to start doing ….
示例1
题目：核能好不好？
现实：Nuclear 有安全隐患
未来 1：已经得到非常大的提升，除非天灾，否则不会有人祸（前几年，一个美国高中生实现了核能家用）
Though safety risks remain, the technology and associated preventative measures have been greatly improved in recent decades and will continue being perfected. It is foreseeable that no manmade accidents will occur, thus making nuclear the most reliable source of energy production in the future.
未来 2：还远远不够安全，各种安全事故频繁发生，即使很多是天灾引起的，那也只能证明，抗震性差，不适合普及
Though nuclear technology has been improved and power plants now have fewer accidents, the overall safety condition can hardly be ensured. In the future, even if only a minor problem of the machine occurs, the consequence will foreseeably be disastrous.
示例2
题目：动物实验好不好？
现在：动物实验的替代品没有
未来 1：正在研发，非常可靠，即将全面取代
Though no substitute is found to be widely applicable in scientific experimentation, many alternative methods such as in vitro cell culture techniques and in silico computer simulation have been greatly improved in recent decades and will continue being perfected. It is foreseeable that they can be reliable replacements of living objects in the research, thus making animals unnecessary in experiments.
未来 2：还在研发，前景未知，短期很难取代
Though substitutes have been improved and experiments now use fewer living creatures, the overall wide use of alternative methods can hardly be ensured. In the future, even if only a minor problem of the process occurs, the consequence will foreseeably be disastrous.
示例3
题目：人们喜欢买名牌好不好？
现在：大部分人喜欢买名牌
未来1：以后所有的企业都想成为名牌
In order to maintain the market share, most companies will try to implement methods to increase the popularity of their brands, such as raising the quality or providing better customer service. This trend will benefit the consumers as well as trigger positive competition among most enterprises.
未来2：以后小牌子都被干掉，只有部分寡头垄断
In the foreseeable future, many little-known brands with few resources will be forced out of the market, if the majority of consumers only prefer a limited number of popular companies. It is scientifically proved to be negative to the long-term healthy development of the economy when the market is dominated by a few.
以上就是小编给同学们分享的in-class essay写作小技巧，同学们只要不知道该如何论证，可以试试这个方法，前提是大家要说清楚理由，而不是天马行空。
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