First, the argument is based on a false analogy. The arguer simply assumes that____, but he does not provide any evidence that_____.
Second, the arguer commits a fallacy of hasty generalization. Even if____, it does not follow that____。
Besides, the arguer does not provide any solid information concerning that____.
actually, the arguer’s recommendation of _____would most probably turns out to be ineffective and misleading.
In the first place, the arguer fails to take into account the ____factors in the analysis. While we are informed that _____, the arguer fails to make clear that____.
In the second place, the comparison in this argument is incomplete and selective, the arguer discovers that ____. However the arguer fails to provide any information regarding ____.
Unless the arguer also takes these factors into consideration, the comparison is unconvincing.
First of all, the argument is based on a hasty generalization. According to the cited studies, ____. The fact tells very little about _____. Even if we accept the arguer’s assumption that_____, it is unwarranted to assume that_____.
In addition, the arguer fails to consider several other relevant factors that____. For instance, _____.
What’ s more,______.
Finally, the arguer hints that_____, but he fails to analyze that_____.
The major problem with this argument is that the arguer fails to convince us that _____. First, the fact that ____does indicate that____. Second, _____, which makes it impossible for us to evaluate that____
Another point worth considering is the arguer’s hasty generalization. We are informed that____, but we do not know that_____. We can believe that ____, but based on this slim information, we can never evaluate the overall performance of discount.
One major assumption in short of legitimacy is that_____. First, ____. Second, _____. This may prove misleading and counterproductive in the end.
In addition, the conclusion is based on a gratuitous assumption that_____. This, however, is unwarranted.