比較狀語從句一般由as…as(和一樣)，not as/so…as(與……不一樣)，than(比),the more…, the more…(越……越……)引導(dǎo)。

The director gave me a better offer than he gave Dick.導(dǎo)師給我的提議比給狄克的好。

In recent years travel companies have succeeded in selling us the idea that the furtherwe go, the betterour holiday will be.近幾年旅游公司已成功地對(duì)我們公眾宣傳了去得越遠(yuǎn)，假日越好的觀點(diǎn)。

John plays football as well as,ifnot better than, David. 如果說約翰的足球踢的不比大衛(wèi)好，至少和他踢的一樣好。

I can't run as/so fast as he can. 我不能跑得他那樣快。

讓步狀語從句

讓步狀語從句由though，although，as，even if (though)，however，whatever，whoever，whenever，no matter +wh詞，等引導(dǎo)。

1、even if, even though, although，though引導(dǎo)的讓步狀語從句

這四個(gè)詞（詞組）都有“雖然、即使、盡管”的意思。even if和even though帶有較強(qiáng)的意味，語氣比although和though強(qiáng)。though比although通俗，但不如although正式,都不能和but連用，但可以和yet, still或nevertheless連用?？梢苑旁谥骶淝懊嬉部梢苑旁谥骶浜竺?。even if，even though所接的句子常用虛擬語氣。

We wouldn't give up even if we should fail ten times.即使是我們失敗十次，我們也不會(huì)放棄。

He might have given you more help，even though he was very busy．盡管他很忙，他可能給了你更多的幫助。

2、as或though引導(dǎo)讓步狀語從句

（1）由as或though引導(dǎo)讓步狀語從句用倒裝語序

Proud as these nobles are, he is afraid to see me.這些貴族盡管很傲慢，他們卻害怕見我。

（2）如果表語為單數(shù)可數(shù)名詞，這個(gè)名詞不帶冠詞

12-year-old girl as she is, she has had a good command of English.她雖然只是個(gè)12歲的女孩，但是她已經(jīng)熟知英語。

Child as he is，he knows a lot.雖然他還是個(gè)孩子，卻懂的很多。

(3)如果句中謂語包含情態(tài)動(dòng)詞或助動(dòng)詞，則將實(shí)意動(dòng)詞放在as之前

Try as I might，I couldn't lift the stone.我使多大勁兒也搬不動(dòng)這塊石頭。

Praised as he was, he remained modest.他雖然受到表揚(yáng)，但仍然保持著謙虛。

（4）如果句中謂語僅有實(shí)意動(dòng)詞，則將實(shí)意動(dòng)詞(原形)放在as之前，并在主語后面加助動(dòng)詞do, does, did或will。

Torture her as they did, the enemy got nothing out of her.雖然敵人拷打她，卻沒有能從她嘴里得到什么。

Fail as he did, he would never give up.盡管他失敗了，但他決不會(huì)放棄。

注:但是，如果在這種情況下，句中謂語有副詞修飾，則將副詞放在as之前。

Again and again as he failed, he didn't lose heart.他雖然多次失敗，但仍不灰心喪氣。

Much as I admire his courage, I don't think he acted wisely.我雖然佩服他的勇氣，但是我認(rèn)為他這樣做是不明智的。

3、由no matter+ wh詞和由疑問詞＋ever引導(dǎo)讓步狀語從句

由no matter引導(dǎo)，表示“不管；無論”；由疑問詞＋ever引導(dǎo)，表示“不管，不論”。這類詞有：whatever，whichever，whoever，however， whenever，wherever等,他們相當(dāng)于no matter+ what（which，who，how，when， where），都不能與but，so，and等并列連詞同時(shí)使用。

We'll have to finish the job, however(no matter how) long it takes. 不管需要多長時(shí)間，我們都一定完成這項(xiàng)工作。

No matter what(Whatever) you do, don't tell him that I told you this. 無論你做什么，別告訴他我對(duì)你說過這件事。

4、由whether．．．or引導(dǎo)讓步狀語從句

由whether．．．or引導(dǎo)讓步狀語從句表示“不論……還是”，提供兩種對(duì)比的情況。

I shall go, whether you come with me or stay at home. 不論你來還是留在家中，我都要去。

Whether we like a particular piece of news or not, all we have to do is sit in front of the tube and “let it happen”.不管我們喜歡不喜歡一條消息,我們所能做的只是坐在電視機(jī)前，“讓它過去”。