还在发愁作文写不好吗？

一般来讲，真正决定作文表达效果的还是中间段。为了紧扣题意，增强表达效果，中间段的写作可采用以下方法：

一、列举法：列举法是四级写作中常用的方法，一般用first, second等一系列标志词引出原因或者可能的影响等。列举法常用的素材有：

引出列举：1. There may be a combination of factors which contribute to/are responsible for/can explain ______. 也许有一些因素造成/可以解释______。2. There are probably three/many/several/a variety of reasons for this dramatic/significant increase/decline in ______.引起______显著增长/下降的原因有三个/许多/几个/很多。3. Some reasons can explain this trend. 一些原因可以解释这一趋势。4. Why ______ ?为什么______？5. The causes of ______ are varied. They include______ , perhaps the main cause is ______. 造成______的原因有很多，包括______,主要原因可能是______。6. The reason for this is not far to seek. 这一问题的原因不难发现。7. It is no easy task to identify the reasons for this phenomenon which involves several complicated factors. 要找出这一现象的原因并非易事，因为它涉及若干复杂的因素。8. There are numerous reasons why ______, and I would explore only a few of the most important ones here. ______的原因有很多，这里我只想探讨其中几个最重要的原因。9. There are many reasons responsible for this phenomenon, and the following are the typical ones. 导致这种现象的原因有很多，以下是其中比较有代表性的。10. There are many reasons explaining this case. As for me, I regard the following as the typical ones. 有很多原因可以解释该问题。就我而言，我认为以下原因比较典型。11. A number of factors could account for/contribute to/lead to/result in the change of ______. 引起______变化的因素有很多。

分条列举：1. In the first place, ______. In the second place______ .首先，______。其次，______。2. First,______ . Second, ______ . 首先，______。其次，______。3. To begin with, ______. Secondly, ______. Last but not least, ______首先，______。其次，______。最后但并不是最不重要的，______。4. The first reason is that ______. The second one is ______. The third is ______. 第一个原因是______。第二个原因是______。第三个原因是______。5. First of all, ______. Secondly,______ . Furthermore,______ .首先，______。其次，______。另外，______。6. For one thing, ______. For another, ______一方面,______。另一方面，______。7. Firstly, ______. Secondly, ______. Thirdly, ______.首先，______。其次，______。再次，______。8. Another reason why I disagree with the above statements is that I believe______.我不同意上述观点的另一个原因是我认为______。