(1)分号用以连接两个紧密相关的句子，这两个句子又是分别相对完整的句子。（说是“相对”，是因为虽然语法上都能单独成句，但是逻辑意思上第二句单独出来的话就说不通）
EG: Andrew and Lisa are inseparable; they do everything together.
(2)用分号连接的两句应该是独立、平衡的。如果原句有从属关系，那么应该保留。
(3)分号后经常跟一些链接副词（注意这些词不是真正的连词，不能用逗号替代分号），如however, therefore, in addition.
EG: Wrong: Andrew and Lisa are inseparable, THEREFORE, we never see them apart.
Right: Andrew and Lisa are inseparable; THEREFORE, we never see them apart.
(4)分号还有个主要的用法：用来隔开带逗号的一串名词。
EG: Wrong: I listen to Earth, Wind & Fire, Wow, Owls, and Blood, Sweat & Tears.
Right: I listen to Earth, Wind & Fire; Wow, Owls; and Blood, Sweat & Tears.
(1)冒号是对前面提出的信息起补充说明作用，可以在冒号后面加namely或者that is。
(2)冒号前的分句必须能够单独成句，冒号后的则不一定。
EG: The rate of a reaction is affected by three factors: concentration, surface area, and temperature.
(4)冒号后可以加入一个主句，用以解释冒号前的内容。
EG: On January 1, 2000, the national mood was completely different from what it would become just a few years later: at the turn of the century, given a seemingly unstoppable stock market and a seemingly peaceful world, the country was content.
(1)破折号的用法很富有弹性，既可以作强调作用，也能充当冒号，分号。
(2)有时候为了突出主要内容或者解释时，破折号更佳。
EG: My three best friends-Danny, Jimmy, and Joey-and I went skiing. (用逗号就变7个人了)
(3)破折号还可以重复或者解释前半句的内容。但又和冒号不同，破折号不一定立刻放在被解释内容之后。
EG: Post-MBA compensation for investment bankers tends to surge far ahead of that for management consultants-by tens, if not hundreds, of thousands of dollars a year. | 
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发表于 2011-10-8 22:17:47
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