however放句首是什麼意思

1、用作副詞

(1) 表示讓步：意爲“無論如何”“不管怎樣”,用來修飾形容詞或副詞,

其詞序爲：however+形容詞或副詞+主語+謂語.這樣用的however其實具有連詞的功能,用以引導讓步狀語從句.如：

however much he eats,he never gets fat.不管他吃多少,他永遠吃不胖.

用於此用法時,請注意以下幾點：

①此用法屬however所有用法中最重要的考點,同學們務請引起高度重視.

②這樣用的 however 與 no matter how 大致同義.如：

People always want more,however [no matter how] rich they are.人總是富了還想再富.

however [No matter how] hard I worked,she was never satisfied.無論我多麼努力地工作,她從來沒滿意過.

③有時從句謂語可用情態動詞.如：

Don’t laugh,however funny it may be.無論多麼有趣也不要笑.

I’ll try to finish it in time,however hard it may be.無論多麼難,我也要按時完成.

④“however＋形容詞或副詞＋主語＋謂語”有時可以有所省略.如：

I refuse,however favorable the conditions.不管條件如何有利,我都不幹.(conditions後省去了are)

I’d rather have a room of my own,however small (it is),than share a room.無論房間多麼小,我寧願一個人住一間,而不願意與別人合住一個房間.

A grammar rule,however true (it is),is useless unless it can be understood.一條語法規則,不管如何正確,除非能懂,否則毫無用處.

(2) 表示轉折：尤其用於談及一個既成事實時,表示轉折,其意爲“可是”“仍然”等.可放在句首、句中或句末,通常用逗號與句子其他成分隔開.如：

My father,however,did not agree.但是,我父親不同意.

My room is small; however,it’s comfortable.我的.房間很小,但卻很舒服.

He said that it was so; he was mistaken,however.他說情況如此,可是他錯了.

注：however不能像 but(但是)那樣直接連接兩個句子(注意正句中的標點符號).如：

我們都已盡了最大的努力,不過我們還是輸了..

正：We all tried our best,but we lost the game.

正：We all tried our best; however,we lost the game.

正：We all tried our ver,we lost the game.

(3) 表示驚奇或強調：相當於how ever的用法,其意爲“究竟怎樣,到底以什麼方式”。