however放句首是什么意思

howeveradv. 无论如何；不管怎样（接副词或形容词）；但是；可是conj. 无论以何种方式; 不管怎样不管however以何种形式出现,它都不外乎以下两种用法。

相关介绍：

1、用作副词

(1) 表示让步：意为“无论如何”“不管怎样”,用来修饰形容词或副词,

其词序为：however+形容词或副词+主语+谓语.这样用的however其实具有连词的功能,用以引导让步状语从句.如：

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

用于此用法时,需要注意的是以下几点：

①此用法属however所有用法中最重要的考点,同学们务请引起高度重视.

②这样用的 however 与 no matter how 大致同义.如：

People always want more,however [no matter how] rich they are.人总是富了还想再富.

however [No matter how] hard I worked,she was never satisfied.无论我多么努力地工作,她从来没满意过.

③有时从句谓语可用情态动词.如：

Don’t laugh,however funny it may be.无论多么有趣也不要笑.

I’ll try to finish it in time,however hard it may be.无论多么难,我也要按时完成.

④“however＋形容词或副词＋主语＋谓语”有时可以有所省略.如：

I refuse,however favorable the conditions.不管条件如何有利,我都不干.(conditions后省去了are)

I’d rather have a room of my own,however small (it is),than share a room.无论房间多么小,我宁愿一个人住一间,而不愿意与别人合住一个房间.

A grammar rule,however true (it is),is useless unless it can be understood.一条语法规则,不管如何正确,除非能懂,否则毫无用处.

(2) 表示转折：尤其用于谈及一个既成事实时,表示转折,其意为“可是”“仍然”等.可放在句首、句中或句末,通常用逗号与句子其他成分隔开.如：

My father,however,did not agree.但是,我父亲不同意.

My room is small; however,it’s comfortable.我的.房间很小,但却很舒服.

He said that it was so; he was mistaken,however.他说情况如此,可是他错了.

我们都已尽了最大的努力,不过我们还是输了..

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 best.however,we lost the game.

(3) 表示惊奇或强调：相当于how ever的用法,其意为“究竟怎样,到底以什么方式”。