教了几年的雅思、托福写作，发现对于我们大多数中国学生学生来讲，有几个语法问题是具有共性的。
1、最普遍的现象:双谓语
1）There be句型
There are many people agree tokeep pets at home.
There be句型中，BE动词以及是谓语了，而句中的agree又是个谓语动词。所以词句应改为：
There are many people who agree tokeep pets at home.
2)整个句子做主语
Environmental pollution is becoming more serious is an undeniable fact.
此句应改为：It is an undeniable fact that environmentalpollution is becoming more serious.
3)动词做主语
Dopart-time jobs helps students to relieve their financial burden.
主语必须是名词或代词，因此，
Doing part-time jobs helps students torelieve their financial burden.
2、无谓语
We all against all kinds ofterrorist activities.
这主要是受了汉语的干扰，反对against这个词在英语中是介词
应改为：We are all against all kinds of terroristactivities.
None can negative the importanceof money
Negative是名词或形容词，也无法充当动词使用，应改为：
None can deny the importance ofmoney.
科技大多数无谓语的句子是由词性的误解所造成的。
3、平行结构的问题
There is a great differencebetween dinning out and to have a snack at home
Between A and B,其中，A和B在词性上必须是一致的。这种规则同样适用于听力中的某些填空题。比如某次听力考试，有这么一道题（剑桥雅思5第二套题的SECTION4）：… stations contain accommodation, work areas, akitchen, a ______ and a gym.这个空格中的答案一定是名词，与kitchen, gym是一类的事物。
4、主谓一致的问题
To teach many children are a hardjob.
不定式做主语，谓语动词一般现在时中应使用单数第三人称
To teach many children is a hardjob.
5、逗号乱打的问题
Beijing is a beautiful city, Ienjoy living here.
逗号不能连接两个句子，除非他们属于并列句，那就需要使用FANSBOY
(for， and…)此句应改为：
Beijing is abeautiful city, so I enjoy living here.
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