一、根据衔接词本身在文章中起到的作用，主要分为以下四类，即“起”“承”“转”“合”。
(一)表示“起”的词/词组：用于开篇引出扩展句。
(二)有关“承”的常用词语，用来承接上文。
(三)有关“转”的常用词语：用来表示不同或相反的意见。
(四)有关“合”的常用词语：用于小结上文或结束本段落的内容。
二、根据衔接词本身的意思和文章连接所需要的逻辑意义，可分为以下14类。
(一)表示因果关系
as a result
He never studied hard, and as a result he failed in the last examination.
as a result of
He is late for work as a result of traffic accident.
accordingly
He wanted to buy a radio for English study, and accordingly her mother bought it for him.
because (of )
We are delayed because of a traffic jam.
due to
His success is due to his excellent work.
owing to
Owing to his absence, our meeting is not held.
thanks to
Thanks to a good teacher, she passed the examination.
now that
Now that you have grown up, you must earn for yourself.
so long as
You could realize your dream so long as you try it again and again.
since
Since you are here now, you'd better give a hand.
in that
The policy is harmful in that it may encourage people to give up.
so that
The officer speaks at the top of his voice so that every soldier could hear him.
therefore
There is a calculating mistake there, therefore, the answer is wrong.
(二)表示解释关系
as a matter of fact
I will go there this morning, as a matter of fact, I am only 10 minutes' drive from you.
as well
I will go there. My friend will go with me as well.
frankly speaking
Frankly speaking, I am not very satisfied with your words.
in this case
In this case, I will go there as soon as possible.
(三)表示推理关系
or else
Hurry up, or else you'll be late.
otherwise
You must carry this passport, otherwise you will be stopped by the guard.
if so
If so, it will make a great difference.
(四)表示递进关系
in addition
I need your help. In addition, I also need her support.
besides
First, we must work hard. Besides, we must work with a creative mind.
and moreover
The hat is the right size for you, and moreover, it goes well with your skin.
that is to say
The stock price is declining, that is to say, I am losing money.
in other words
I am not hungry, in other words, I really dislike the food in this canteen.
equally important
You should read more news from newspapers, and equally important, keep an eye on the news from the radio.
What's more
It is harmful to my health, and what's more, it is no good to my work.
last but not least
Last but not least, my thanks should go to every member of my class.
(五)表示比较关系
equally
As a teacher, I should teach well, but equally, I should study well.
in the same way
It is such a coincidence that we figure it out in the same way.
in contrast to
In contrast to your belief, I quite disagree with you.
instead
If you don't go, I'll go instead.
on the contrary
You thought I like it. On the contrary, I dislike it.
in contrast
It is hot in the daytime, but in contrast it's very cold at night.
while
We are happy in China, while most Africans live unhappily.
