英语有100万个单词,而连接词却只有70个左右,它们总是非常高频率的出现在各类文章、对话、电邮等英语实际沟通中。我们常见的表示转折的过渡词有:but,still,yet,however,nevertheless,nonetheless,on the contrary,in spite of,even though等。
下面我们先来看一下这五个常用的表示转折的连词都是谁:
but
(属并列连词表转折,上下分句所述情况相反,用在句中,后不加逗号)但是,可是
 Life is limited but there is no limit to learning.
while
(属并列连词表对比,但程度不及st诅l强烈)虽然,尽管,而 
she is very diligent,while he is very lazy. 
yet
(属副词作并列连词用,语气比but强烈,可与与and,but连用)而,然而,可是 
He said he would be late,yet he arrived on time.
however
(属副词兼作并列连词用,表转折比but稍松弛,可位于句中首、尾〕用逗号分开)可是,然而
It's raining hard, however,I think we should go out. 
still
(属副词作连词用)尽管如此,但仍然如故(常用于后一分句,可以跟逗号)仍然
I didn't win the game still it's been a good experience.
though
(作副词用,一般用在句末)(口语)可是,不过,然而
It is hard work,I enjoy it though.
 
但在实际语言应用中这些词区别甚微,有时可互为转。