考点2 连接副词

常见的连接副词有：therefore, besides, otherwise, however, moreover, still, thus, meanwhile, nevertheless等。

以however为例，它与最常见的并列连词but起的作用是一致的，都具有转折的含义，唯一的区别在于前者是副词，后者是连词。however在句中的位置及其前后的标点符号用法为：

（1）Sentence A.+However,+Sentence B.

（2）Sentence A;+however,+Sentence B.

（3）Sentence A. Sentence B, however.

例如：

Many people believe this is right. However, John believes that is wrong.

Many people believe this is right; however, John believes that is wrong.

Many people believe this is right. John believes that is wrong, however.

（三句的含义均为：许多人认为这是对的，然而，约翰却认为这是错误的。）

而并列连词but的用法：

Sentence A,+but+Sentence B.例如：

Many people believe this is right, but John believes that is wrong.

许多人认为这是对的，但是约翰却认为这是错误的。

其他连接副词用法与however相似。