GRE常用作文例子借鉴，下面是常见的写作的三个部分，开头、正文以及结尾部分，分别有相应的句型介绍，希望可以供大家参考。

开头：

In this analysis, the arguer claims that … should … To substantiate the conclusion, the arguer cites the example of … where … In addition, the arguer assumes that … This argument is unconvincing for several critical flaws.

正文：

For instance … since … what’s more … etc.

and how well it represented the public opinions..

The sample of the survey is not representative.

(样本太小)

the sample is too small to...

(光数字没比例)

the ratio of four to six

there is only figures but no proportion of the survey 还是ratio?

Insufficient Sample

If the [respondents] only stand for a tiny proportion of the whole [group], we should not be so sure about the conclusion that [the whole group…]

The arguer commits a fallacy of hasty generalization.

It was only carried out in Sun City, but the arguer applies its result to all the company’s markets while doesn’t show us whether Sun City is a representative market of the whole markets.

有的病人会对抗生素过敏

the arguer commits a fallacy of hasty generalization. Even if the maintenance of the airline has been improved as a result of sending its mechanics to the Seminar, which is, of course, an unwarranted assumption, it does not follow that 就算怎样，也不怎样

The survey is based on two isolated examples. The arguer should survey more hospitals of both types.

循环假设

The arguer commits a fallacy of begging the question in assuming that …

结尾：

other possible causes of the …

To conclude, this argument is not persuasive as it stands.