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 the 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 firmly 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