however、although、but用法有什么差別

日期：2018-06-22 15:34 點(diǎn)擊：

however與but

1.however作副詞用時,表示“然而;但是”,可以位于句首、句中和句末;位于句首時,要用逗號與句子其它部分隔開;位于句中時,其前后都要用逗號;位于句末時其前用逗號分開.例如:

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

她病了.然而她照舊去上班,并且盡力集中精神工作.

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

他最初的反應(yīng)是不同意,可是后來他改變了主意.

2.however與but 兩者都做“但是,然而”講,而且都引出并列句.從語義上看,but所表示的是非常明顯的對比,轉(zhuǎn)折的意味較however要強(qiáng).從語序上看,but總是位于所引出的分句之首,而however卻可位于句首、句中和句末,同時從標(biāo)點(diǎn)符號上看,but之后一般不得使用逗號,而however則必須用逗號與句子其它部分分開.例如：

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

我原以為那些數(shù)字正確無誤,不過我最近聽說并不正確.

3.however的其它用法：however可以作連詞(conj.),表示“無論以何種方式,不管怎樣”,引導(dǎo)讓步狀語從句.例如：

You can travel however you like.你可以隨心所欲地去旅行.

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

這一問題我不管怎樣都無法解決.

however與although

1、although 是連詞，意思是：盡管;雖然;但是;然而可以單獨(dú)引領(lǐng)句子，并且絕大部分用在句首;

例句：Although he is known to only a few, his reputation among them is very great.盡管只有幾個人知道他，但是他在他們之中的名聲很大。

Although they're expensive, they last forever and never go out of style.盡管它們貴，它們永遠(yuǎn)耐用并且永不過時。

2、however 是副詞：adv. 無論如何;不管怎樣(接副詞或形容詞);然而;可是在however和although是同樣的轉(zhuǎn)折意思的時候，前者是副詞，后者是連詞，詞性首先就不一樣。當(dāng)however做副詞使用并且表示是轉(zhuǎn)折意味的時候，不可以單獨(dú)引領(lǐng)句子，必須是上文說了一件事情，however是承接上文所說的意思進(jìn)行轉(zhuǎn)折，可以用在下句的句首，并可以用逗號分開，也可以用在句中，前后用逗號分開。

This was not an easy decision. It is, however, a decision that we feel is dictated by our duty.這可不是一個輕松的決定。不過我們覺得我們有責(zé)任做出這樣的的決定。