连接词:
.so, and,then,but,or,however,yet等.
. who,which,that,because,since,although,after,as,before,when,whenever,if,unless,as if等.
句式:
.长短句交替使用.
.简单句与复杂句交替使用.如各种从句,倒装句.
常见的有:
As far as I know...
As is known to all...
In my opinion...
Not only...but also...
It is time +s+过去式
Only by doing...can we(I,she,he,it...)...
An advantage of...is that...
The reason why...is that ...
That is the reason why ...
There is no doubt that ...