GMAT语法题，又称句子改错题(sentence correction)，是整个GMAT考试中对考生英语语法能力考查要求最高的题型，也往往是中国学生最为头疼的一类题目。没有扎实的语法基础和一定的逻辑分析能力，想要做好语法题难度极高。怎样做好GMAT语法题?下面小编就通过一些经典真题的实例解析，为大家全面讲解GMAT语法题的解题思路和方法技巧。
实例题目：
The only way for growers to salvage frozen citrus is to process them quickly into juice concentrate before they rot when warmer weather returns.
(A) to process them quickly into juice concentrate before they rot when warmer weather returns
(B) if they are quickly processed into juice concentrate before warmer weather returns to rot them
(C) for them to be processed quickly into juice concentrate before the fruit rots when warmer weather returns
(D) if the fruit is quickly processed into juice concentrate before they rot when warmer weather returns
(E) to have it quickly processed into juice concentrate before warmer weather returns and rots the fruit
选项分析：
(A)to process them quickly into juice concentrate before they rot when warmer weather returns
【错误】 见(E)。
(B)if they are quickly processed into juice concentrate before warmer weather returns to rot them
【错误】 见(E)。
(C)for them to be processed quickly into juice concentrate before the fruit rots when warmer weather returns
【错误】 见(E)。
(D)if the fruit is quickly processed into juice concentrate before they rot when warmer weather returns
【错误】 见(E)。
(E)to have it quickly processed into juice concentrate before warmer weather returns and rots the fruit
【正确】 “it”正确地指代了单数名词“citrus”。
【大意】 种植者挽救冻伤柑橘的唯一办法就是在温暖天气来到并使柑橘坏掉之前将其做成浓缩果汁。
解题思路：
本题无需过多解释，“柑橘”的学名“citrus”虽然以“s”结尾，但其实是单数的概念，应使用“it”指代，因此只能选择(E)。
