1．开头段的常用核心句型
1） The arguer may be right about..., but he seems to neglect to mention the fact that....
2） Contrary to generally accepted views, I argue that....
3） There is an element of truth in this argument, but it ignores a deeper and more basic fact that....
4） It is true that ..., but this is not to say that....
5） The main / obvious problem with this argument is that it is blind to the basic fact that....
6） It would be natural / reasonable to think that..., but it would be absurd to claim that....
7） In all the discussion and debate over..., one important fact is generally overlooked / neglected.
8） There is absolutely no reason for us to believe that....
9） To assume that...is far from being proved.
10） A close inspection of this argument would reveal how flimsy （groundless） it is.
11） On the surface （At first thought）, it may seem an attractive idea, but on second thought, we find that....
12） Too much emphasis placed on...may obscure other facts....
13） The problem / fact are that....
14） However logical this argument may be, it only skims the surface of the problem.
15） As far as I am concerned, I believe that....
16） Although I appreciate that..., I cannot agree with....
17） Those who object to ... argue that.... But people who favor..., on the other hand, argue that....
18） Currently, there is a general concern over....
19） Now it is widely acknowledged that.... But I wonder whether....
20） These days we often hear about ..., but is this really the case?
2、中间段的常用核心句型
1） The change in...Mainly results from....
2） The increase in...Is due to the fact that....
3） Many people would claim that....
4） One of the reasons given for...is that.... What is also worth noticing is that....
5） There are a variety of reasons for this dramatic growth in.... First ... Second ... Finally...
6） There is no evidence to suggest that....
7） Why are （is / do / did）...? For one thing ... For another...
8） There are numerous reasons why..., and I shall here explore only a few of the most important ones.
9） It will exert remarkable effect on....
10） A multitude of factors could account for （contribute to） the change in....
11） With the development of..., vast changes awaits this country society.
12） History is filled with the examples of....
13） The story is not rare （isolated / unique）, it is one of many examples.
14） As is shown in the table released by the government, it can be learned that....
15） There is （no） good evidence to....
16） We must admit the undeniable fact that....
17） No one can deny （brush aside） the fact that....
18） Experience （Evidence） suggests that....
19） The same is true of....
20） As the saying goes, “....
3、结尾段的常用核心句型
1） Taking into account of all these factors, we may reach the conclusion that....
2） Judging from all evidence offered，we may safely come to the conclusion that
3） It is high time that we place great emphasis on the improvement of....
4） It is high time that we put an end to the unhealthy situation （tendency / phenomenon） of....
5） There is no easy solution to the problem of ..., but ... might be useful.
6） Given the factors I have just outlined, I can only say that....
7） Unless there is a common realization of ..., it is very likely that....
8） There is no denying that serious attention must be called to the problem of....
9） It is essential that effective measures should be taken to prevent the situation.
10） It is fundamental that effective actions should be taken to control the tendency.
11） It is suggested that great efforts should be made to control the growth of....
12） It is hoped that great efforts should be focused on finding （developing / improving）....
13） It remains to be seen whether ..., but the prospect is not quite encouraging.
14） It remains unknown whether ..., but the outlook is quite rosy.
15） Anyhow, wider education should be given to the possible consequences of....
16） Anyway, more publicity should be given to the potential effects of....
17） To reverse the trend is not a light task, and it requires a different state of mind towards....
18） To control the tendency is not an easy job, and it involves a different state of attitude towards....
19） For the reasons presented above, I strongly commit to the notion that....
20） To put all into a nutshell, I....