(1)表示原因

　　Because / As / Since

　　Given the fact that...

　　In the light of the fact that...

　　As is shown / implied / suggested by

　　Due to / owing to...

　　(2)表示结果

　　Therefore / So / Consequently

　　As a result / consequence...

　　Hence / Thus...

　　For this reason, we can say that...

　　This leads to...

　　This suggests / implies / indicates / proves that...

　　From this we can see / deduce that...

　　It can be assumed / inferred / argued that...

　　(3)表示转折让步

　　But.......

　　On the other hand...

　　However...

　　Nevertheless...

　　Opponents / Critics of this position may argue that...

　　Another argument against... Is...

　　It may be objected that...

　　One possible objection is that...

　　Several questions come to mind...

　　One might ask / wonder / be sceptical whether...

　　Certain obj ections must, of course, be considered...

　　Wnile this may be true in cases where..., it does not apply to...

　　(4)表示递进关系

　　Also...

　　In addition...

　　Moreover...

　　Furthermore...

　　Beyond this...

　　Besides this...

　　More importantly...