1) 先后次序关系：at this time; first; second; at last; next；previously; simultaneously;

eventually；last but not least；to begin with；to start with；to end

with；finally；seeing...；since then；first of all；afterwards; following this;

preceding this.

2) 因果关系：because；because of this；being that；another important factor／reason

of... ； since； as； for； in that...； owing to； due to； for the reason that...； in

view of； the reason seems to be obvious; there are about... ；for this reason; as

a result of this； therefore；...and so...； consequently；as a result； thus； hence；

so；so that...； in consequence； as a consequence； accordingly; inevitably; under

these conditions; thereupon.

3) 转折关系：but；even so；however；though；even though；independent of；reckless of

；despite that； in spite of that； regardless of; yet...；and yet； but unless.

4) 并列关系： and; also；too；as well as；either...，or...；both...and...

5) (补充)递进关系： furthermore；moreover；further；In this way ；still； not only...but

also...； not...but...； in addition (to)；additionally, much more interesting,

more specifically, next, besides； as far as... is concerned; moreover；in other

words；along this line of consideration；on the one hand...，on the other hand...；

even； as a poplar saying goes...；in order to do it...; meanwhile； at the same

time； accordingly； In the first place...，in the second place...;equally

important; of even greater appeal.

6) 比较关系： similarly; in like manner, in comparison with；when compared

with；compared with；when in fact...; like...； likewise； similarly important；

apart from (doing)...； ... rather than...，by doing so ；both…and...; in the same

way; not only...but (also).

7) 对照(不同点)：yet; still; for all of that; notwithstanding; rather; neither ...

nor; although; though; but; however; something is just the other way around；yet;

conversely； unlike； opposed to; as opposed to ； in contrast (to)； by way of；on

the contrary；different from this；as opposed to this； nevertheless; contrary to；

whereas； while；but on the other hand.

8) 举例关系:for example； for instance； in this case; namely； as you know； you

may as／say； as he explains； like； such as； a case in point is...; consider...；

in particular；including...；for one thing...，for another...；put it simply；stated

roughly； as an illustration， I will say...； a good example (of...)would be...；to

detail this，I would like to...； It is interesting to note that...；in this

situation; as proof; take the case of; take as example (something)； as for; as

regards； as to； according to; on this occasion.

9) 强调关系：in fact; especially；particularly；moreover；naturally; what is more

important； in reality； certainly; of course; indeed; in particular；not to

mention...；believe it or not；undeniably; other thing being equal；it is

certain／sure that...；to be strict; to be true；by