but,though,however 有什么区别这三个词有什么区别怎么用

but,though,however 有什么区别这三个词有什么区别怎么用

but 是连词,连接两个并列句,中间用逗号隔开.表示转折如： I wanted to buy a book, but I don't have enough money.though 是副词,但在句中的成分相当于连词.引导从句,不能与but 连用,可以放句首或者句中.意思是尽管如：Though it is so hot I have to go outside.I have to go outside though it is so hot.however 也是副词,剧中成分相当于连词.可以放在句首或句中,后面一定要用逗号.表转折.放句首时,与前面的句子是转折的连接.放句首时,前后用逗号隔开如：I wanted to buy a book, however, i do not have enough money.======以下答案可供参考======供参考答案1:but = 但是最平常的用法，与汉语的“但是”用法差不多例：I wish I could sleep in but it was Monday.though = 虽然一般用于一个句子的中间或句末（区别于although——此词用于句首或句中）例：I didn't like the lecturer even though she was easy to understand.He usually doesn't like chocolate. He likes chocolate ice cream though.however = 1.但是 2.不管多（如何）1.正式用语多用于句中；很多作文将之放于句首，其实是不规范的。2.与“wherever”之类词的结构相近。例：1. This is a well-known statement, however, it is very easily overlooked.2. She couldn't see a thing however hard she tried.（无论她怎样努力，她总是什么都看不见。）供参考答案2:but:但是,语气要比however 强however:可是,然而.语气较弱,通常位于句中.I'd like to go with you; however, my hands are full.He hasn't arrived. He may, however, come later. though:尽管，虽然．可以位于句首，句中． I'll call to see you this evening though I can stay only a few minutes．Though it was raining, he went there.

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