however和but有什么区别

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  • 1.however作副词用时,表示“然而;但是”,可以位于句首、句中和句末;位于句首时,要用逗号与句子其它部分隔开;位于句中时,其前后都要用逗号;位于句末时其前用逗号分开.例如:

    She felt ill.She went to work,however,and tried to concentrate.

    她病了.然而她照旧去上班,并且尽力集中精神工作.

    His first response was to say no.Later,however,he changed his mind.

    他最初的反应是不同意,可是后来他改变了主意.

    2.however与but 两者都做“但是,然而”讲,而且都引出并列句.从语义上看,but所表示的是非常明显的对比,转折的意味较however要强.从语序上看,but总是位于所引出的分句之首,而however却可位于句首、句中和句末,同时从标点符号上看,but之后一般不得使用逗号,而however则必须用逗号与句子其它部分分开.例如:

    I thought those figures were correct.However,I have recently heard they were not.

    我原以为那些数字正确无误,不过我最近听说并不正确.

    3.however的其它用法:however可以作连词(conj.),表示“无论以何种方式,不管怎样”,引导让步状语从句.例如:

    You can travel however you like.你可以随心所欲地去旅行.

    However I approached the problem,I couldn’t find a solution.

    这一问题我不管怎样都无法解决.