1、表层次
first，firstly， to begin with ，further， in the first place
second，secondly， to start with， still， furthermore
third，thirdly， what is more ，last but not least
also ，and then ，next， besides
and ，equally ，important， too， moreover，in addtion， finally
2、表转折
by contrast， although ，though， yet
at the same time， but， despite， the fact that ，even so
in contrast， nevertheless， even though， for all that
on the contarary ，however， inspite of
on the other hand， otherwise ，instead ，still ，regardless
3、表因果
therfore， consequently ，because of ，for the reason
thus ，hence， due to ，owing to
so， accordingly， thanks to， on this account
since， as ，on that account ，in this way
for， as a result， as a consequence
4、表让步
still， nevertheless， concession， granted，naturally
in spite of ，all the same， of course ，despite
even， so， after all
5、表递近
furthermore， moreover ，likewise， what is more
besides ，also ，not also...
too ，in addition
6、表举例
for example ，for instance， for one thing ，that is
to illustrate， as an illustration，a case in point
7、表解释
as a matter of fact， frankly speaking ，in this case， namely
in other words
8、表总结
in summary， in a word ，thus ，as， has been said
in brief ，in conclusion， altogether， in otherwords
to conclude ，in fact，finally
indeed， in short， in particular， that is
in other words ，of course， on the whole， to put it differently
namely， in all ，therefore， to summarize
