GMAT考试写作指导：Argument范文四二

　　28. The author concludes that the local transit company must either reduce tares for

　　the shuttle buses that transport people to then- subway stations or increase parking fees

　　at the stations. The reasons offered to support this conclusion are that commuter use of

　　the subway train is exceeding the transit companys expectations, while commuter use

　　of the shuffle buses is below projected volume. This argument is unconvincing because

　　the author oversimplifies the problem and its solutions in a number of ways.

　　To begin with, by concluding that the transit company must either reduce shuttle

　　fares or increase parking fees, the author assumes that these are the only available

　　solutions to the problem of limited shuttle use. However, it is possible that other

　　factors-such as inconvenient shuttle routing and/or scheduling, safety concerns, or an

　　increase in carpools―contribute to the problem. If so, adjusting fares or parking fees

　　would might not solve the problem.

　　In addition, the author assumes that reducing shuttle fees and increasing parking

　　fees are mutually exclusive alternatives. However, the author provides no reason for

　　imposing an either/or choice. Adjusting both shuttle fares and parking fees might

　　produce better results. Moreover, if the author is wrong in the assumption that parking

　　fees and shuttle fees are the only possible causes of the problem, then the most effective

　　solution might include a complex of policy changes―for example, in shuttle fares,

　　parking fees, rerouting, and rescheduling.

　　In conclusion, this argument is weak because the author oversimplifies both the

　　problem and its possible solutions. To strengthen the argument the author must examine

　　all factors that might account for the shuttles unpopularity. Additionally, the author

　　should consider all possible solutions to determine which combination would bring

　　about the greatest increase in shuttle use.