1.1 Hasty Generalization The most conspicuous reasoning error in this argument is the author’s underlying/gratuitous assumption that A is representative of B, in general. However, it is not necessary the case. There may be many dissimilarities between A and B. For example, perhaps … So unless it can be shown that what is true of A will be likewise true of most other…, the conclusion that…is fairly unwarranted/highly suspect/entirely unfounded. 1.2 Misapplied Generalization The author’s conclusion/prediction relies on the gratuitous assumption that 大范围 applies specifically to 小范围. There is, however, no guarantee that this is the case, nor does the author provide any evidence to substantiate this assumption. Just as likely, 小范围 ….( is just in the opposite direction). In that case, the author’s conclusion/recommendation might amount to especially poor advice. 1.3 False Analogy The argument relies on what might be a “false analogy” between A and B. In order for B to serve as the model for A, the author must first assume that all relevant circumstances involving these two…are essentially the same. However, this assumption is not warranted. For example, …all affects A but are virtually absent in B. All these problems might present surmountable obstacles for …in the future. 1.4 All things are equal The argument unfairly infers that….would remain unchanged over/since…(unfairly infers from…in the past that ...this year would must be …). However, in the absence of evidence to support this inference, it is just as likely that …, or that… (Admittedly, had ten years elapsed the argument would be even weaker. Yet two years is sufficient time to see great changes in… For example, perhaps…) Any of these scenarios, if true, would serve to undermine the author’s conclusion that… | 
