高中英语语法知识汇总：让步状语从句+比较状语从句

高中英语语法知识汇总：让步状语从句+比较状语从句

高中英语语法知识汇总：状语从句。状语从句（adverbial clause）在句中作状语，可修饰主句中的动词、形容词和副词等。本文将详细介绍让步状语从句和比较状语从句的用法。

比较状语从句

比较状语从句一般由as…as(和一样)，not as/so…as(与……不一样)，than(比),the more…, the more…(越……越……)引导。

• The director gave me a better offer than he gave Dick. 导师给我的提议比给狄克的好。
• In recent years travel companies have succeeded in selling us the idea that the further we go, the better our holiday will be. 近几年旅游公司已成功地对我们公众宣传了去得越远，假日越好的观点。
• John plays football as well as, if not better than, David. 如果说约翰的足球踢的不比大卫好，至少和他踢的一样好。
• I can't run as/so fast as he can. 我不能跑得他那样快。

让步状语从句

让步状语从句由though，although，as，even if (though)，however，whatever，whoever，whenever，no matter +wh词，等引导。

1. even if, even though, although，though引导的让步状语从句

这四个词（词组）都有“虽然、即使、尽管”的意思。even if和even though带有较强的意味，语气比although和though强。though比although通俗，但不如although正式,都不能和but连用，但可以和yet, still或nevertheless连用。可以放在主句前面也可以放在主句后面。even if，even though所接的句子常用虚拟语气。

• We wouldn't give up even if we should fail ten times. 即使是我们失败十次，我们也不会放弃。
• He might have given you more help，even though he was very busy．尽管他很忙，他可能给了你更多的帮助。

2. as或though引导让步状语从句

（1）由as或though引导让步状语从句用倒装语序

• Proud as these nobles are, he is afraid to see me. 这些贵族尽管很傲慢，他们却害怕见我。

（2）如果表语为单数可数名词，这个名词不带冠词

• 12-year-old girl as she is, she has had a good command of English. 她虽然只是个12岁的女孩，但是她已经熟知英语。
• Child as he is，he knows a lot. 虽然他还是个孩子，却懂的很多。

(3)如果句中谓语包含情态动词或助动词，则将实意动词放在as之前

• Torture her as they did, the enemy got nothing out of her. 虽然敌人拷打她，却没有能从她嘴里得到什么。
• Praised as he was, he remained modest. 他虽然受到表扬，但仍然保持着谦虚。

（4）如果句中谓语仅有实意动词，则将实意动词(原形)放在as之前，并在主语后面加助动词do, does, did或will。

• Torture her as they did, the enemy got nothing out of her. 虽然敌人拷打她，却没有能从她嘴里得到什么。
• Fail as he did, he would never give up. 尽管他失败了，但他决不会放弃。

注:但是，如果在这种情况下，句中谓语有副词修饰，则将副词放在as之前。

• Again and again as he failed, he didn't lose heart. 他虽然多次失败，但仍不灰心丧气。
• Much as I admire his courage, I don't think he acted wisely. 我虽然佩服他的勇气，但是我认为他这样做是不明智的。

3. 由no matter+ wh词和由疑问词＋ever引导让步状语从句

由no matter引导，表示“不管；无论”；由疑问词＋ever引导，表示“不管，不论”。这类词有：whatever，whichever，whoever，however， whenever，wherever等,他们相当于no matter+ what（which，who，how，when， where），都不能与but，so，and等并列连词同时使用。

• We'll have to finish the job, however(no matter how) long it takes. 不管需要多长时间，我们都一定完成这项工作。
• No matter what(Whatever) you do, don't tell him that I told you this. 无论你做什么，别告诉他我对你说过这件事。

4. 由whether．．．or引导让步状语从句

由whether．．．or引导让步状语从句表示“不论……还是”，提供两种对比的情况。

• I shall go, whether you come with me or stay at home. 不论你来还是留在家中，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”. 不管我们喜欢不喜欢一条消息,我们所能做的只是坐在电视机前，“让它过去”。