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我們在學(xué)習(xí)英文的語法知識的時(shí)候，有時(shí)候會(huì)將差不多的詞搞混，例如：however和whereas，知道however和whereas語法嗎?下面是小編給大家?guī)淼膆owever和whereas語法難點(diǎn)詳解，以供大家參考，我們一起來看看吧!

however和whereas語法難點(diǎn)詳解

However和whereas的用法不同。請遵守下面的規(guī)則，以避免錯(cuò)誤。

Use "however" (followed by a comma) at the beginning of a sentence to contrast with the previous sentence:

在句首使用however(后面要加逗號)來表示和前一句意思相反。

Some people believe that schools are responsible for the behaviour of their students. However, others argue that discipline is the responsibility of parents.

Use "whereas" (after a comma) to contrast two ideas in the same sentence:

Whereas用于同一句內(nèi)的兩個(gè)相反意見(前面要加逗號)。

Some people believe that schools are responsible for the behaviour of their students, whereas others argue that discipline is the responsibility of parents.

You can use "on the other hand" or "by contrast" in the same way as "however". You can use "while" instead of "whereas".

On the other hand和by contrast的用法和however相同，而while和whereas的用法一樣。

however的語法用法詳解

▼1. 用作副詞，注意以下用法：

(1) 表示讓步，意為“無論如何”“不管怎樣”，用來修飾形容詞或副詞，其詞序?yàn)椋篽owever+形容詞或副詞+主語+謂語。這樣用的however其實(shí)具有連詞的功能，用以引導(dǎo)一個(gè)讓步狀語從句。如：

However much he eats, he never gets fat. 不管他吃多少，他永遠(yuǎn)吃不胖。

However cold it is, he always goes swimming. 不管天有多冷，他都去游泳。

However far it is, I intend to drive there tonight. 不管有多遠(yuǎn)，我今晚也要開車到那兒去。

這樣用的 however 與 no matter how 大致同義。如：

No matter how much he eats, he never gets fat.

No matter how cold it is, he always goes swimming.

No matter how far it is, I intend to drive there tonight.

有時(shí)從句謂語可用情態(tài)動(dòng)詞。如：

Don’t laugh, however funny it may be. 無論多么有趣也不要笑。

I’ll try to finish it in time, however hard it may be. 無論多么難，我也要按時(shí)完成。

另外，“however+形容詞或副詞+主語+謂語”有時(shí)可以有所省略。如：

I refuse, however favourable the conditions. 不管條件如何有利，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. 無論房間多么小，我寧愿一個(gè)人住一間，而不愿意與別人合住一個(gè)房間。

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

(2) 表示轉(zhuǎn)折，尤其用于談及一個(gè)既成事實(shí)時(shí)，表示轉(zhuǎn)折，其意為“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(cuò)了。

注意，however不能像 but(但是)那樣直接連接兩個(gè)句子(注意正句中的標(biāo)點(diǎn)符號)。如：

我們都已盡了最大的努力，不過我們還是輸了。

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

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) 表示驚奇或強(qiáng)調(diào)，相當(dāng)于how ever的用法，其意為“究竟怎樣，到底以什么方式”。如：

However did you get here without a car? 沒有汽車你究竟是怎樣來的呢?

However does he manage to write music when he is so deaf? 他聾成這個(gè)樣子，究竟是怎樣從事作曲的呢?

▼2. 用作連詞，引導(dǎo)方式狀語從句，表示“無論以何種方式”“不管怎樣”。如：

However it may be, I shall take your word. 無論如何，我將會(huì)相信你的話。

The painting looks wrong however you look at it. 這張畫不論怎么看都顯得不對勁。

However you travel, it’ll take you at least two days. 無論你怎么個(gè)走法，至少要兩天時(shí)間。

whereas的語法用法詳解

▼連接詞 conj.

1.(用以比較或?qū)Ρ葍蓚€(gè)事實(shí))但是,然而,盡管

Some praise him,whereas others condemn him.

有些人贊揚(yáng)他,而有些人譴責(zé)他.

2.(用于正式文件中句子的開頭)鑒于 (法律用語)

▼名詞 n.

以“whereas”開頭的公文

1."And","but"and"whereas" are conjunctions.and,but和whereas是連詞.

2.Some of the studies show positive results,whereas others do not.有一些研究結(jié)果令人滿意,然而其他的則不然.

3.They want a house,whereas we would rather live in a flat.他們想要一座房子,而我們寧愿住在一套房間里.

4.Some praise him,whereas others condemn him.有些人贊揚(yáng)他,而有些人譴責(zé)他.

5.Whereas I was blind,now I see.我過去雙目失明,現(xiàn)在則重見天日.

c.Materialists face truth,whereas idealists shun it.唯物主義者面向真理,唯心主義者則逃避真理.

7.Religion is a diffuse topic liable to unending disputation whereas theism is not.宗教是一個(gè)容易引起無休止?fàn)幷摰膹浬⑿驮掝},而有神論則不是.

8.Whereas the medical doctors" wives don"t flop--catch "em at it!而醫(yī)生的老婆卻不用禱告——你見過她們禱告么!

Pensions are linked to inflation,whereas they should be linked to the cost of living.養(yǎng)老金與通貨膨脹掛鉤,然而它們其實(shí)應(yīng)該和生活費(fèi)用掛鉤.

10.Some people praise him,whereas others condemn him.有些人贊揚(yáng)他,而有些人譴責(zé)他.

while, whilst和whereas語法詳解

While和whilst一樣，但whilst要更正式些(一本著名的語法書這么說的)。

Whereas is always used for contrast. While/whilst can be used for contrast, or to mean "at the same time".

Whereas總是用于表示相反的意見。While和whilst既可以表示意思相反，也可以表示“與此同時(shí)”。

As can mean "because" or "exactly at the moment when".

As可以表示“因?yàn)椤保部梢灾浮熬驮谀菚r(shí)”。