GRE写作：张雷冬Argument模板（31套）_GRE写作

GRE写作：张雷冬Argument模板（31套）

　　Even if the authors proposal could be carried out effectively, we still could not hastily assume that will necessarily earn a substantial profit, as the author predicted.

　　To evaluate the profitability of we should consider the function of both revenue and expense.

　　However, the author does not provide any information about the possible cost of carrying out the authors proposal

　　Many key steps of the proposal may involve great expense, if the cost of carrying out the proposal exceeds projected revenue the proposal would be profitless.

　　Without more information about production costs, it is impossible to assess whether carrying this proposal will be effective or profitable.

　　Lack of controlled experiment or comparison

　　The author ought to conduct controlled experiment or to make comparison between the subject and its counterparts to illustrate the causal relationship between two events but no such evidence is provided.

　　The author unfairly assumes that it is that resulted in

　　The causal relationship is convincing only if the author could demonstrate that all other factors that might affect the result remained constant during the same period.

　　Specifically, we need to know the experiment result of one group of the subjects, while at the same time, we also need to find out the situation of the counterpart.