在表达相互平行的概念时，要使用相同的语法结构，摆平平行结构是高考短文改错中出现频率较高的考查形式。

　　案例探究
　　1.It was very kind of them to meet me at the railway station and drove me to their home.
　　（NMET I996）
　　解析：此题为五星级题。drove改成drive。 因为to meetand to drive 是平行结构，同时在句中作主语。drive 可以视为省略了to。
　　e.g. It is difficult for him to speak English and communicate with others in English.

　　2.To answer correctly is more important than finish quickly.
　　解析：此题为五星级题。在finish 前加to。to finish quickly 与to answer quickly 是不定式的平行结构。
　　e.g. To say is easier than to do.

　　3.In many ways, riding a bicycle is a similar to drive a car.
　　解析：此题为四星级题。drive 改为driving, riding 与driving 为动名词的平行结构。

　　4.Psychology today is interesting; informative and easily to read.
　　解析：此题为五星级题。easily 改为easy. interesting ,informative and easy 为形容词的平行结构。
　　e.g. We must solve this problem in a correct and friendly way.

　　5.Not only do readers find the book useful, it also helped Jiang to learn more.
　　解析：此题为五星级题。do 改为did。 因为not onlybut also 连接两个平行结构find 和help ,都为过去时态。not only 置与句首，应该倒装，借助于助动词did。

　　锦囊妙计
　　常考虑:
　　1.动词与动词平行、形容词与形容词平行、分词与分词平行、不定式与不定式平行、短语与短语平行。

　　2.平行结构经常借助于并列连词and, but, or或连词词组not onlybut also, notbut, eitheror,neithernor, as well as 等。