1)表层次:

first/firstly /to begin with /in the first place

second/secondly/furthermore

third/thirdly/what is more/besides

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 /notwithstanding

on the contrary/ however in spite 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/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 only……but also……

too/ in addtion

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 other words

to conclude/ in fact/finally/ in simpler terms

indeed/ in short /in particular

that is /in other words /of course /on the whole

namely /in all/ therefore /to summarize