therefore表示后面的事情是前面提及的事情的结果,等同于for the reason that。它更倾向于逻辑的结果。hence表示的也是后事是前事的结果,但它的着重点是鉴于前事。hence和therefore都是连接副词,表因果关系,均可接句子,但hence后可直接接名词,但therefore不可以。
therefore可引出一个独立句,但不能连接两个句子,因此当therefore前没有and等连词时,前面须用分号。连接副词therefore用于句首时后面无需逗号,若位于句中前面可加也可不加逗号。therefore也可用于推理,作“故…由此得出”解。
therefore的用法例句:
The truth is that junk bonds were misnamed,and therefore misunderstood。事实上人们对垃圾债券的称谓有误,所以产生了误解。They had seen him trawling and therefore knew that there were fish。他们曾见过他用拖网捕鱼,因此知道那里有鱼。
from hence从这里;hence with拿开;带走。hence例句:For centuries,medicine was impotent and hence unproblematic。几个世纪以来,医学无能为力,因此没有问题。The true consequences will only be known several years hence。真正的后果只有在几年之后才能知道。