1．并列关系
and，furthermore，morethanthat，also，likewise，moreover，inaddition，whatismore，forinstance，forexample
2．转折关系
although，however，onthecontrary，but，inspiteof，nevertheless，yet，otherwise，despite
3．顺序关系
first，second，third，andsoon，then，after，before，next
4．因果关系
asaresult，for，thus，because，forthisreason，so，therefore，as，since，consequently，onaccountof
5．归纳关系
asaresult，finally，therefore，accordingly，inshort，thus，consequently，inconclusion，so，inbrief，inaword
