This Is the only book that I can understand
As (adv.) as
As many as were present He raised so difficult a question ____as_ none of us cold answer. He raised such a difficult question ____as_ none of us cold answer.
17 do you remember the building over which flew a red flag
Soon we reached a farm house, in
front of which sat a small boy.
A’Qiao arrived at a brook, on both sides of which grow beautiful flowers and grass
Two canoes were nearby in which they had come to the island
He came to school in his father’s car. By car/bus/water/ship/plane
A red flag flew over the building all the year round.
How was it that
I don’t know how
Comic strips didn’t come into it was that being
It was not until the end of the 19 century that Comic strips came into being. th
Not until the end of the 19 century did comic strips come into being
3 I didn’t receive the manager’s reply until a month later.
It was not until a month later that I received the manager’s th
Not until a month later did I receive the manager’s reply It was not until a month later that I received the manager’s reply
Must /may /might have done Can/can’t have done sth
主要有：though= although,even though= even if
even if 后面一般接假设结果 I will try,even is I shall fail.
a. Though he tried hard, yet he failed.
b. Although I didn’t know anybody at the party, I had a very good time.
c. The family is the essential presence—the thing that never leaves you, even if you find you have to leave it.
(al)though是连词，后边只接从句（有时是省略形式的从句），而despite, in spite of, for all 是介词，后边只接名词（短语），不接从句。注意比较下列句子： a. Though he was inexperienced, he did a very good job.
=In spite of his inexperience, ……
b. Although it was dangerous, …
= Despite the danger, ……
3, While 位于句首，一般表示“尽管…”， 引导让步状语从句。
a. While I sympathize with your point of view, I can not accept it.
b. While he has time, it doesn’t mean he has capacity and patience.
句型：adj+ as + 主语+ 谓语 ,as前的名词不加冠词和定冠词。
a. Young as he is, he is knowledgeable.
b. Poor as he is, he is kind and honest.
c. Much as I respect him, I can not agree with him.
d. Hard as he tried, he failed the exam again.
e. Child as he is, he is knowledgeable.
引导让步状语从句的连词主要有以下这些：though,although,while,as; even if,even though; whether...or...; no matter+疑问词，疑问词-ever，
regardless of+名词/名词短语/名词从句，despite，in spite of。切记although，though 不可与but连用，但可以与still和yet连用。
My will remains firm though I must lower my physical sights. 尽管我得降低体育（锻炼）的目标，但我的意志是坚强的。
Though I believe it,yet I must consider.
Although/Though he was exhausted,(still) he kept on working. 虽然他已经精疲力竭了，但仍然继续工作。
Although/Though he is very old,(yet) he is quite strong.
She passed the examination though she had not studied very hard. 她虽然不用功学习，考试却及格了。
Object as you may,I’ll go.(=Though/Although you may object,I’ll go.) 纵使你反对，我也要去。
Hard as/ though he works,he makes little progress. (=Though he works hard,he makes little progress.）
Child as/though he was,he knew what was the right thing to do.（=Though he was a child,he knew what was the right thing to do.）
Fast as you read,you can’t finish the book so soon.
Lover of towns as I am ,I realize that I owe a debt to my early country life.
Small as atome are,they are made up of still samller units.
⑶even if,even though 表示“即使??”，“纵使??”之意，含有一种假设。
这两个复合连词的意思基本相同。它们常互换使用，但意义有细微差别。even if引导的让步从句含有强烈的假定性，可用来表示与事实相反的假设，但不能用来描述已经发生的事实。而even though引导让步状语从句时，是以从句的内容为先决条件的，即说话人肯定了从句的事实，表示已经发生了的事。例如： We’ll make a trip even if/though the weather is bad.
Even if he is poor,she loves him. (=He may be poor,yet she loves him.） 即使他很穷，但她还是爱他。
Even though he is poor,she loves him. (=He is poor,yet she loves him.） 尽管他很穷，但她还是爱他。
He seemed youthful even though he was an old man.
You must come in if it's only a minute.
You'll have to attend the ceremony whether you're free or busy. 不管你忙不忙，都要参加这个典礼。
Whether you believe it or not,it's true.
Whether or not they win this battle,they won't win the war.
No matter what happened,he would not mind. (=Whatever happened,he would not mind.)
No matter who you are,you must keep the law.(=Whoever you are,you must keep the law.
When anyone does something for you,no matter how samll and no matter whether he's a superior or servant,it's proper to say“Thank you”. 只要任何人替你做了一件事，不管事情多么微不足道，也不管他是你的上司还是你的仆人，你都应该说声“谢谢”。
Whatever (=No matter what) you say,I won’t believe you. (Whatever 引导让步状语句）
I'll eat whatever （≠no matter what) you give me. (whatever引导宾语从句）
Whoever comes will be welcome. (Whoever 引导主语从句)
此外，有时while也可以引导让步状语从句，但一般要位于句首。例如： While I like the colour,I don't like the shape.我虽然喜欢那颜色，但不喜欢那形状。
让步状语从句表示：虽然，尽管，即使等概念，由although,though（尽管，即使），however（无论怎样），whatever（无论什么），whoever（无论谁），whomever（无论谁），whichever（无论哪个），whenever（无论何时），wherever（无论哪里），whether（是否），no matter (who,what,where,when,etc) （无论??），even if（即使），even though（即使）等词引导。
如：We won’t be discouraged even if(=even though) we fail ten times. 我们就是失败十次也不泄气。
It was an exciting game,though / although no goals were scored.
那是一场精彩的球赛，尽管一个球都没进。（though,although不能与 but连用） Whether you believe it or not,it’s true.
However (=No matter how) expensive it may be,I’ll take it.
Don’t let them in,whoever(=no matter who) they are.
No matter what I say or how I say it,he always thinks I’m wrong. 无论我说什么或怎么说，他总认为是我错。
1. no matter
However pure the water looks,I do not want to drink it.
I want to marry the man I love,no matter who he may be.
下面句子不能用no matter结构（no matter不能引导名词性从句）：
Whoever comes back first is supposed to win the prize.（主语从句） I am ready to do whatever you want me to .（宾语从句）
Whatever you did,I will accept.为让步状语从句.
I will accept whatever you did.为宾语从句.
2. as 引导让步状语从句的用法
e.g. Heavily as it was raining outside,they started out very early. Young as he is,he knows a lot=Though he is young 或Young though he is,he?.
e.g：teacher as he is,he likes Chinese very much(teacher 前不加a或the）。 though还可以用作副词，放在句末。如：
It was hard work;; I enjoyed it,though=It was hard work,but I enjoyed it.那工作很苦，但是我喜欢干。
3.用though/although,as 引导让步状语从句时，句中不能用but表示转折语气。 不能说：Though he looks weak,but he is healthy.
而要说：Though he looks weak,he is healthy.
或者说：He looks weak,but he is healthy.
4 . however 用作副词，不可连接句子。但可置于第二句的句首、句末或句中。要特别注意标点的使用。
eg: Alice is a good student．However,she has one shortcoming．爱丽丝是一(来自:WWw.Zaidian.Com 在点网:电影台词中的让步状语从句)个很好的学生，但她仍有缺点。He has not arrived. He may,however,come later. The composition is all right. There is room for
⒌ 除以上提到的从句连词外，表示让步的介词短语有despite,in spite of，后接名词。eg. Despite all these facts,we cannot ignore the advantages of learning through internet.
although/though he is very old,he still works very hard.=（he is very old,he still works very hard）虽然他老了，但他仍然很努力地工作。不可说：although/though he is very old,but he still works very hard。
though l knew the fact，yet l didnt say anything。尽管我知道，但我什么都没说。