11．由whenever, wherever 引导的从句，同时也分别是时间 状语从句和地点状语从句，这里作为让步状语从句来看待，是 强调它们带有no matter when, no matter where 的含义。在 口语中用no matter +wh- 结构比较常见。例如：
No matter when and how the invaders come, they will be wiped out clean. Don’t believe the rumour, no matter who repeats it. (可置于主句之后)
It doesn’t matter (= No matter) what he may say, I am going.（口语中常用）
涉及让步状语从句的五类倒装
一、（表语）名词+as / though+主语+动词. Child as he is, he knows to help other. Teacher though he is, he can’t know everything. 【说明】其中的动词通常为连系动词，也就是说位于句首的名 词是其后连系动词的表语。另外，要特别注意位于句首的名词 前习惯上不用冠词，即使其前有形容词修饰也不用冠词。 二、(表语)形容词+as / though+主语+动词 Successful as he is, he is not proud. 【说明】其中的动词也通常为连系动词，也就是说位于句首的 形容词是其后连系动词的表语。
普通句子
easy
文艺句子
important
超文艺句子
Very important
1．although 和though 引导的让步状语从句：
① 两个词同义，一般情况下可以互换使用，如： He didn’t light the fire though / although it was cold. ② although 比though 较正式，语气较重，常用于强调让步概 念，如： He insisted on doing it although I warned him not to. ③ though可以和even 连用，但although 不可以，如： Although (Even though) the traffic held us up, we got to the airport on time. ④ 当让步状语从句是指一种假设的情况，不指事实时，通常 用though，而不用although，如： Though all the world were against me, I shall still hold to my opinion. ⑤ though可以在非正式文体中用作连接性状语，而although 则不行。（though 可以放在句中或句末，通常用逗号隔开）， 如： He said he would come; he didn’t, though.
让步状语从句
定义：让步状语从句是状语从句中的一种，其本身 也是状语从句。一般翻译为“尽管……”或“即 使……”，就是我们日常生活中用的“退一步说……” 的感觉。
引导让步状语从句的连词主要有：though和although （虽然，纵然），while, as（虽然..但是..）; even if 和even though（即使…纵使…）; whether...or...(无论 是否或不管是…还是…); no matter+疑问词（不管… 都…），疑问词-ever，regardless of+名词/名词短语/ 名词从句，despite和in spite of(尽管).
2．even if, even though和 if 引导的让步状语从句：
① even if 与 even though同义，常用于强调让步概念，如： I’ll do it, even if it takes me all the afternoon. Even if you fail, you can try again. 注：if 有时也可以用于让步含义，但要注意条件if 与让步if 的区 别，试比较： If he is poor, how can he buy the house? (条件) If he is poor, he is at least honest. (让步) (= even if) If John had been there, I would have seen him. (条件) If John was there, I didn’t see him. (让步) (= even if)
6.whether…or…(是…还是…)引导的让步状语从句：
△ 这种从句也称“选择条件-让步状语从句”，可位于主句之 前或之后，如： Whether you like it or not, you’ll have to do it. She had to go, whether or not she wanted it.
5．while引导的让步状语从句：
while (= although),它引导的让步状语从句只能前置，位于句首， 如： While you may be right, I can’t altogether agree. 注意比较下列各句： While I understand what you say, I can’t agree with you. (让 步) While I was reading, the light went out. (时间) Motion is absolute while stagnation is relative. (转折、对比) He is lazy, while his brother is diligent. (转折、对比)
1．although 和though 引导的让步状语从句：
⑥ though引导的从句可用倒装语序（即把从句中的表语或状语 等放在though之前），而although 不能这样用，如： Young though she is, yet she is fit for the job. (= Young as she is, …) ⑦ 有时可用副词yet, still, nevertheless (但不能用连词but) 来配 合连接词though或although，以加强语气，如： Though he is over seventy, yet / still / nevertheless he can ride the bike. ⑧ though和although后面的主语和谓语动词be 可以省略，如果 这个主语和主句中的主语指同一个人或物时，如： Though (it was) cold, it was a fine winter morning. Though (they were) very tired, they continued to march on.
3.由as, that, though引导的特殊让步状语从句结构：
注意事项： ① 如果是单数名词或形容词最高级作表语，不再用冠词，如： Youngest as he is in our class, he speaks English the best. ② as从句可以置于主句前、主句中或句后，当as从句置于句 首时，主句前可加yet ，如： Rich as he is, (yet) I don’t envy him. ③ 当作表语的形容词提前时，如果从句的主语是人称代词， 那么它只能放在动词之前(半倒装)；如果从句的主语是名 词，则可用倒装语序(全部倒装) ，也可用陈述语序，如： Clever though / as you may be, you can’t do that. Tired as were the workers, they did not stop. ④ as 从句与主句在时态上可以不一致，如： Child as he is, he was brave. ⑤ 注意区别as 引导的原因从句与让步从句，试比较： Lawyer as he is, he explains the reason clearly. (原因从句) Lawyer as he is, he can’t explain the reason very clearly. (让步从句)
8.由连接形容词whatever 或whichever 引导的让步状语从句，如：
Whatever (= no matter what) difficulties may arise, we must and can overcome them one by one. (whatever 既相当于no matter 连 接主句与从句，又相当于疑问形容词what 修饰名词difficulties.) Whichever (= no matter which) room is assigned to him, he will have no objection. 9.由连接副词however, wherever 或whenever 引导的让步状语从句. However ( = no matter how) difficult the task may be, we will fulfil it on time. ( however 既相当于 no matter 连接主句与从句，又相当于 疑问副词 how 修饰 difficult。)
7．由连接代词whoever, whomever, whatever, whichever引导的让步状语从句：
Whoever (= no matter who) is unwilling to go, I will go. (whoever 既相当于连接词短语no matter 连接主句与从句， 又相当于疑问代词who) Whatever (= no matter what) happens, keep calm.
4．even though和 though