例一：

The most conspicuous assumption may be that the manufacturing job at Quiot is the same as the job at Panoply Industries.

我们把作者的默认和根据这个默认的讨论拆分开，大家就可以看明白：接下来的讨论都是考虑到如果这个默认的情况并不存在的时候，会发生什么情况。

Without stating this premise, we cannot rule out the possibility that the jobs, at the two manufacturing plants, are different and, as a result, have different levels of risk of accidents. For example, workers at Quiot may deal with hazardous materials at work whereas workers at Panoply may not. In this case, it is the very specific content of the job at Quiot Manufacturing that had caused the greater number of accidents.

例二：

The author makes another assumption that the length of each work shift is the only reason why on-the-job accidents take place.

我们把作者的默认和根据这个默认的讨论拆分开，大家就可以看明白：接下来的讨论都是考虑到如果这个默认的情况并不存在的时候，会发生什么情况。

The author should then specifically rule out all other probable factors that could also result in accidents.Otherwise, the assumption is questionable because there are many factors that are also highly likely to affect workplace safety, such as whether workers wear protective gear at work, whether they are able to operate the tools and equipment properly and safely. At this point, we may also find that it may be the number of work shifts during a day, which contribute to the total work hours of a day, instead of the length of each shift, that had caused the accidents.