语法学习在雅思备考中的重要性-写作篇

　　②一系列平行结构上的不正确使用
　　Many people choose air transportation because it is fast, offers convenience and it is not very expensive.
　　点评：当词或词组被放在一个系列时，它们在意义上和结构上必须都是平行的。
　　修改后：Many people choose air transportation because it is fast, convenient and inexpensive.
　　③错误的省略
　　It is commonly thought that modern technology has and will dramatically change our society.
　　点评：这种错误在have/ has ,will, shall结构中较为常见。
　　修改后：It is commonly thought that modern technology has dramatically changed our society and it will continue.
　　④逻辑上的不一致
　　The percentage of cancerous persons among smokers is significantly higher than non-smokers.
　　点评：使用than或as的比较形式，较容易出现不合逻辑的现象。
　　修改后：The percentage of cancerous persons among smokers is significantly higher than that among non-smokers.
　　实际上，雅思写作所运用的语法知识基本都是中学所学的语法内容，因此对于广大考生，特别是语言基础相对薄弱的考生，建议先对这些基础语法内容进行系统的复习，然后一定要动笔练习，通过老师的批改或者利用word等软件，发现自己语法方面的漏洞，及时差漏补缺，做到表达正确并非难事。