导 入： 第1段：Recently we’ve had a discussion about whether we should... （导入话题） Our opinions are divided on this topic.（观点有分歧）
正文： 第2段：Most of the students are in favour of it.（正方观点） Here are the reasons. First... Second... Finally...(列出2~3个zan成的理由)
第3段：However, the others are strongly against it. （反方观点） Their reasons are as follows. In the first place... What’s more... In addition...(列出2~3个反对的理由)
结论： 第4段：Personally speaking, the advantages overweigh the disadvantages, for it will do us more harm than good, so I support it.（个人观点）
导 入： 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.
正文： 第2段：There are many reasons why I prefer A. The main reason is that ... Another reason is that...(zan同A的原因)
第3段: Of course, B also has advantages to some extent... (列出1~2个B的优势)
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