indeed 的确
surely无疑
however然而
obviously显然
frankly坦率地说
naturally自然
luckily (或happily) for sb.算某人幸运
fortunately幸好
strangely奇怪
hone stly真的
briefly简单地说等
1. Surely, she wont go to China Telecom with you.
2. Strangely, he has not been to China Unicom. Still more strangely, he has not called me.
二、常见的作插入语的形容词或其短语
true真的
funny真可笑
strange to say说也奇怪
needless to say不用说
most important of all最为重要
worse still更糟糕的等
Strange to say, he should have done such a thing.
三、常用作插入语的介词短语
in a few words(或in sum，in short)简而言之
in other words换句话说
in a sense在某种意义上
in general一般说来
in my view在我看来
in his opinion(judgment)按照他的意见(判断)
in conclusion总之
in summary概括地说
in fact事实上
in the first place首先
in addition此外
of course当然
to our knowledge据我们所知等
She knows much more about computer science than the other students do，for instance.
四、常用作插入语的分词短语
strictly speaking严格地说
generally speaking一般地说
judging from…根据……判断等
Judging from his letter，a campaign against “white pollution“has been undertaken in his hometown.
注意:不要理解为现在分词短语作状语，因为上两句中speaking和judging的动作不是句中主语发出的。
五、常用作插入语的不定式短语
to be sure无疑地
to sum up概括地说
to tell the truth老实说等
To start with，China is ready strengthen scientific and technological cooperation with many countries.
六、插入句
I am sure我可以肯定地说
I believe我相信
I wonder我不知道
you know你知道
you see你明白
that is也就是说
it seems看来是
as I see it照我看来
what is important (serious)重要(严重)的是
I’m afraid恐怕
it is said据说等
It will result in success，I suppose.
