新东方在线GMAT频道整理了《2021年GMAT写作备考之高效复习》，希望对大家的GMAT写作有所帮助。

　　1、我们在GMAT作文备考时，首先要分析原因。

　　原因上的问题，有以下三个：可疑调查;样本不足;结论无据。

　　2、要想提高GMAT考试的成绩，也离不开分析结果。

　　结论上的问题，有以下两个：无因果联系;二者择一。

　　3、提高GMAT写作水平，更需要论证上的分析。

　　就是论证过程上的问题，有以下两个，纵向横向各一个：错误类比(横向);时地全等(纵向)。

　　这样，只要记住了三字诀：因、果、证，就很容易记牢全部GMAT作文的问题了。下面我们讲解一篇案例，来加深大家的理解。

　　下面是往期的一篇GMAT作文：

　　“Our total sales have increased this year by 20 percent since we added a pharmacy section to our grocery store. Clearly, the customer’s main concern is the convenience afforded by one-stop shopping. // 无因果联系，可能另有他因。

　　The surest way to increase our profits over the next couple of years, therefore, is to add a clothing department along with an automotive supplies and repair shop. We should also plan to continue adding new departments and services, such as a restaurant and a garden shop, in subsequent years. // 时地全等

　　Being the only store in the area that offers such a range of services will give us a competitive advantage over other local stores.” // 结论无据。