语法知识点贯穿英语各类题型，所以语法基础要打好，重点语法要熟练掌握。新东方在线总结写作部分常见语法错误，大家要注意：
2020考研英语写作常见语法错误：平行语法结构
相同的意思是否使用了平行语法结构。
例 4：
a) With the computer, one can do shopping, banking and read at home.
b) With the computer, one can do shopping, banking and reading at home.
分析：can do shopping, banking and read at home, 用语法平行结构来衡量，用动词原形 read是不妥的，为了和 do shopping, do banking 保持结构上平行，接下来的一个内容要用do reading.
例 5：
a) Nowadays, people not only eat enough food, but also eat better.
b) Nowadays, people not only eat more, but also eat better.
用 not only...but also, both...and, whether...or, either...or, as well as, along with等能连接两个成分的连词，前后两个成分在结构上要保持一致。用 eat enough food, eat better不如用 eat more, eat better，都用副词。