There are many reasons explaining__________________________.The main reason is____________________.

　　what is more_________________________.thirdly__________________________.As a result_______________.

　　Considering all there,________________________.For one thing_____________________,for another________

　　In Conclusion____________________.

    四、议论文的框架

　　(1) 不同观点列举型（ 选择型 ）

　　There is a widespread concern over the issue that __作文题目_____. But it is well known that the opinion concerning this hot topic varies from person to person. A majority of people think that _ 观点一________. In their views there are 2 factors contributing to this attitude as follows: in the first place, ___原因一_______.Furthermore, in the second place, ___原因二_____. So it goes without saying that ___观点一_____.

　　People,　however,　differ　in　their 　opinions　on　this　matter.　Some　people　hold the idea that ___观点二_______. In their point of view, on one hand，___原因一_______. On the other hand, ____原因二_____. Therefore, there　is no　doubt　that ___观点二______.　

　　As far as I am concerned, I support the view that __观点一或二______.　It is not only because ________, but also because _________. The more _______, the more ________.

　　（2）利弊型的议论文

　　Nowadays, there is a widespread concern over (the issue that)___作文题目______. In fact, there are both advantages and disadvantages in __题目议题_____. Generally speaking, it is widely believed there are several positive aspects（方面）as follows. Firstly, ___优点一______. And secondly ___优点二_____.

　　Just As a popular saying goes, "every coin has two sides", __讨论议题______ is no exception, and in another word, it still has negative（消极的）aspects. To begin with, ___缺点一______. In addition, ____缺点二______.