[1]. When asked about..., the vast/overwhelming majority of people say that...But I think/view a bit differently.
[2]. When it comes to..., some people bielive that... Othersargue/claim that the opposite/reverse is true . There is probably some truth in both arguements/statements, but (I tend to the profer/latter ...)
[3]. Now, it is commonly/generally/widely believed/held/acknowledged that... They claim/believe/argue that... But I wonder/doubt whether...
1-2 现象法：引出要剖析的现象或者问题，然后评论。
e.g
[1]. Recently the rise in problem of/(phenomenon of)... has cause/aroused public/popular/wide/worldwide concern.
[2]. Recently the issue of the problem of/the phenomenon of...has been brought into focus. ( has been brouth to public attention)
[3].Inflation/Corruption/Social inequality... is yet another of the new and bitter truth we have to learn to face now/constantly.--To be continued !!
1-3 观点法：开门见山，直接了当地提出自己对要讨论的问题的看法。
e.g:
[1]. Never history has the change of... been as evident as...Nowhere in the world/China has the issue/idea of... been more visible/popular than...
[2]. Now people in growing/significant numbers are beginnig/coming to realize/accept/(be aware) that...
[3]. Now there is a growing awareness/recognation ot the necessity to...Now people become increasingly aware/conscious of the importance of...
[4]. Perhaps it is time to have a fresh look at the attitude/idea that...
1-4 引用法：先引出名人名言或者有代表性的看法，来引出文章要展开论述的观点！
e.g:
[1]. "Knowledge is power." such is the remark made by Bacon.This remark has been shared by more and more people .
"Education is not complete with gradulation." Such is the opnion of a great American philosopher. Now more and more people share his opnion.
[2]."..." How often we hear such statements/words like thoses/this .
In our own days we are used to hearing such traditional complains as this "...".
1-5 比较法：通过对过去，现在两种不同的倾向，观点的比较，引出文章要讨论的观点。
e.g:
[1]. For years, ...had been viewed as... But people are taking a fresh look now. With the growing..., people...
[2]. People used to think that... (In the past, ...) But people now share this new .
1-6 故事法：先讲一个较短的故事来引发读者的兴趣，引出文章的主题.
e.g:
[1]. Once in (a newspaper), I read of/learnt...The phenemenon of...has aroused public concern.
[2]. I have a friend who... Should he...? Such a dilemma we areoften confront with in our daily life.
[3]. Once upon a time, there lived a man who...This story may be(unbelievable), but it still has a realistic significance now.
1-8 问题法：先用讨论或解答的设问，引出自己观点，适用于有争议性的话题。
e.g:
Should/What...? Options of... vary greatly, some ..., others...But in my opinion, ...