1、开头句型：As far as ...is concerned 就……而言，It goes without saying that... 不言而喻，It can be said with certainty that... 可以肯定地说。

2、衔接句型：A case in point is ... 一个典型的例子是，As is often the case...由于通常情况下，As stated in the previous paragraph 如前段所述。