2. “一分为二”观点的议论文模式
Introduction
第1段:Nowadays more and more people．．．/．．．plays an important part in．．．. like everything else,　．．．has/have both favorable and unfavorable aspects/both advantages and disadvantages. Generally, the favorable aspects/advantages can be listed as follows.

Main body
第2段：Firstly,.. Secondly,…In addition/What’s more…
第3段: Every coin has two sides. The negative aspects/disadvantages are also apparent/obvious. To begin with…; To make matters worse…; Worse of all…
Conclusion
第4段: Through above analysis/All things considered, we can see that the positive aspects/advantages outweigh the negative ones/disadvantages. Therefore…

例文1. 看电视的利与弊 Advantages and disadvantages of watching TV
Nowadays more and more people like to watch TV. So TV plays a very important part in our life. But watching TV has both advantages and disadvantages. Generally, the advantages can be listed as follows.
Firstly, you can expand your knowledge by watching TV. As we all know, learning things by TV is much faster than by listening to the radio or just by reading books. For it has colorful pictures as well as wonderful music.
Secondly, you may know anybody you want to know such as famous singers, super stars, scientists and so on.
What’s more, you can go everywhere by traveling programs. Let’s suppose, if you like traveling very much, but you have to work on weekends or holidays, you must be very sad. And now open your TV and it’ll take you to anywhere.
Every coin has two sides. The disadvantages are also obvious. For example, watching too much TV can easily become short-sighted, especially for children and students. To make matters worse, some young students are keen on watching TV so that they give up their studies gradually.
Through above analysis, I think watching TV is a way of studying, it is good for us to watch TV. But when we watch TV, we should make a plan otherwise watching TV will destroy our life.

例文2. 谈谈出国留学的利与弊 Where to attend a college

Nowadays more and more young people are going to study abroad. Like everything else, studying abroad has both favorable and unfavorable aspects. Generally, the favorable aspects can be listed as follows.
Firstly, they think by attending a college in a foreign country they can learn not only useful knowledge, but also the culture and customs of other nations. Secondly, they can take advantage of this opportunity to gain a good command of the foreign language they are learning very quickly. Moreover, they can meet different people and experience different cultures, which may help to broaden their views.
Every coin has two sides. The negative aspects are also apparent. The costs are much higher than those in their native country. Most overseas students have to work for a living, which can’t allow them to pay all their attention to study. What’s more, they may feel very lonely.
Through above analysis, we can see that the positive aspects outweigh the negative ones. Therefore, I am in favor of going abroad to study.

写作练习：
①谈谈校服 （school uniforms）.
提示：近年来，越来越多的中小学要求穿校服．对此引发了学生中由对这个问题的讨论，请写一片英语短文阐述你的观点．
Reference: some of the main arguments for and against school uniforms.
FOR AGAINST
1.Students look neat and tidy. 1.Uniforms are expensive.
2.The public knows which school you are from. 2.Children grow fast, need new uniforms.
3.Parents all pay the same money. 3.Some uniforms are very uncomfortable.
4.Students don’t worry about fashions. 4.Students all look the same, can’t be individuals.
5.Teachers can identify students on school trips. 5.Get bored with same clothes every day.
6.Good discipline for students.

②说广告（about advertisement）.
提示：有人说广告在现代社会是很重要，有人认为广告的促销成分太多，你认为……

3.“两者选一”观点的议论文模式
模式⑴:A、B两者优劣势分析,要么选A,要么选B.
Introduction
第1段:Some people hold the opinion that (A) is superior to (B) in many ways. Others, however, argue that (B) is much better. Personally, I would prefer (A) because I think (A) has more advantages.

Main body
第2段：There are many reasons why I prefer (A). The main reason is that … Another reason is that…(赞同A的原因)
第3段: Of course, choosing (B) also has advantages to some extent, (列出1~2个B的优势)

Conclusion
第4段: But if all these factors are considered, (A) is much better than (B). from what has been discussed above, we may finally draw the conclusion that …(总结观点)