开头万能句型:1、As far as is 就…而言。2、It goes without saying 不言而喻。3、It can be said with certainty 可以肯定地说。4、As the proverb 正如谚语所说的。5、It has to be noticed 它必须注意到。结尾句型套用:I will conclude by 最后我要说。Therefore, we have the reason to believe 因此,我们有理由相信。All things considered,总而言之It may be safely said 它可以有把握地说。Therefore, in my opinion, it's more 因此,在我看来,更可取的是。From what has been discussed above, we may safely draw the conclusion 通过以上讨论,我们可以得出结论。