开头段常用核心句型
　　the arguer may be right about…, but he seems to neglect to mention the fact that…
　　contrary to generally accepted views, i argue that…

　　it is true that…, but this is not to say that…
　　the main/obvious problem with this argument is that it is blind to the basic fact that…
　　it would be natural/reasonable to think that…, but it would be absurd to claim that…
　　there is absolutely no reason for us to believe that…
　　at first thought, it may seem an attractive idea, but on second thought, we find that…
　　the problem/fact is that…
　　as far as i am concerned, i believe that…
　　those who object to…argue that…but people who favor…, on the other hand, argue that…
　　中间段的常用核心句型
　　the change in…mainly results from…
　　the increase in…is due to the fact that…
　　many people would claim that…
　　one of the reasons given for is that…
　　there are a variety of reasons for this dramatic growth in… first… second… finally…
　　why are (is/do/did)…? for one thing… for another…
　　history is filled with the examples of…
　　as is shown in the table released by the government, it can be learned that…
　　there is (no) good evidence to…
　　we must admit the undeniable fact that…
　　no one can deny the fact that…
　　experience (evidence) suggests that…
　　the same is true of…
　　结尾段的常用核心句型
　　it is high time that we placed great emphasis on the improvement of…
　　it is high time that we put an end to the unhealthy situation (tendency/phenomenon) of…
　　there is no easy solution to the problem of…, but… might be useful.
　　unless there is a common realization of…, it is very likely that…
　　it is essential that effective measures should be taken to prevent the situation.
　　it is suggested that great efforts should be made to control the growth of…
　　it is hoped that great efforts should be focused on finding (developing/improving)…
　　anyway, more publicity should be given to the potential effects of…
　　to control the tendency is not an easy job, and it invol