进行对比：

　　The advantages for A for outweigh the disadvantages of...

　　Although A enjoys a distinct advantage ...

　　Indeed , A carries much weight than B when sth is concerned.

　　A maybe ... , but it suffers from the disadvantage that...

　　承上启下：

　　To understand the truth of ..., it is also important to see...

　　A study of ... will make this point clear

　　让步：

　　Certainly, B has its own advantages, such as...

　　I do not deny that A has its own merits.

　　结尾：

　　>From what has been discussed above, we may safely draw

　　the conclusion that ...

　　In summary, it is wiser ...

　　In short...

　　在作文中引用合适的名言警句，会给你的文章增色许多。这里收集了我本人喜爱的一些名言，可能会对你有用。我们使用引用的位置可以在开头结尾或正文段落中，

　　常见的使用形式如下：

　　One of the greatest early writers said ...

　　"Knowledge is power", such is the remard of ...

　　"......". That is how sb comment ( criticize/ praise...).

　　"......". How often we hear such words like there.