词性不同。therefore是副词;so可以是副词,也可以是连词,还可以是代词和名词。
含义不同。therefore含义为“因此;所以”;so含义为“如此、这样”、“因此、所以”、“为了”等。
用法不同。therefore可以放在句首,后面加逗号,也可以放在句中作为插入语;so作连词时可以连接两个简单句,作副词时可以修饰形容词或其他副词。
侧重点不同。therefore侧重符合逻辑的结果;so强调根据某种原因而得出的结果。
使用场合不同。therefore用法比较正式,常用于书面语中;so则常用于口语中。
It is settled and therefore we cannot go behind it.
此事已成定局,我们不能再去斟酌它了。
He was very tired, and therefore he didn't give the market report.
他非常疲倦,所以没能作市场报告。
We have a growing population and therefore we need more food.
我们的人口在增长,因此我们需要更多的食物。
Your information is inaccurate and your conclusion is therefore wrong.
你的信息不准确,所以你的结论是错误的。
That boy's parents are unmarried, therefore he is a bastard!
那个男孩的父母未结婚,所以他是私生子。
This time round it was not so easy.
这一次这事可就不那么容易了。
This course is designed so that students can progress at their own speed.
这门课的设计思路是让学生自己掌握进度。
Try not to make so much noise.
别那么吵吵闹闹的。
I told the boys off for making so much noise.
孩子们太吵,我把他们训斥了一顿。
I don't want you coming home so late.
我不希望你这么晚回家。