① 目的状语从句 英语怎么说
adverbial clause of purpose
② 英语语法状语从句
比较状语从句经常是省略了与主句相同的词语，因此，此句补全是：
The situation is better than (the situation) （that) I expected (is good）.这个情况比我预料的情况要好。
than （the situation) (that) I expected (is good) 这是比较状语从句部分，括号中的词语就是被省去的、与主句相同的词语， the situation是从句中的主语，that I expected是定语从句，修饰the situation, 作宾语的关系代词that可以省去掉。 is 是从句中的谓语动词，good是表语， 这两个与主句相同，因此被省略。
回答完毕，希望我的回答能有帮助。
③ 英语语法状语从句讲解详细
http://wenku..com/view/ea0546661ed9ad51f01df231.html
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④ 目的状语从句的英文例句。
目的状语从句
从句部分是用以补充说明主句中谓语动词发生的目的的状语从句。表示目的状语的从句可以由that, so that, in order that, lest, for fear that, in case等词引导；目的状语从句的谓语常含有may, might, can, could, should, will, would等情态动词。
例句
Say it louder(so)that everyone can hear you.
大声说，以便大家都能听到你。
I am telling you that lest you should make a mistake.
我告诉你这一点，以免你搞错。
I got up early so that I could catch the first bus.
我起得很早，目的是为了赶上头班公共汽车。
She worked hard so that everything would be ready by 5 o'clock.
她努力工作，以便在五点前是一切都就绪。
She looked down so that she should not see his eyes.
她垂下目光，使她看不到他的眼睛。
We'll sit nearer the front so we can hear better.
我们坐的靠前一点，因此，我们听得清楚一点。
He works hard in order that his family may be happy.
为了让家人幸福，他努力工作。
He shouted at the top of his voice,to the that（=in order that）he might be heard.
他高声呼喊，为的是让人们能听见他的说话。
I am punishing the child lest he should make the same mistake.
我惩罚那个孩子，以免他再犯同样的错误。
She took her umbrella lest it（should）rain.
他带了把雨伞，唯恐天要下雨。
Lest the wall（should）collapse,they evacuated the buliding.
他们撤离了大楼，以防墙壁倒塌。
Speak clearly so that they may understand you.
讲清楚些，以便他们能理解你。
He studied hard in order that he could pass the exam.
他努力学习以便能考试及格。
Shut the window for fear that it may rain.
把窗子关上以防下雨。
⑤ 英语语法 目的状语从句与不定式怎么样转换
如果不定式的逻辑主语和目的状语从句的主语一致,可以直接转换.如果不一致,不定式专前要用介词加逻属辑主语.
He got up early in order that he could catch the first bus.=He got up early (in order)to catch the first bus.=In order to catch the first bus,he got up early .
⑥ 谁能简单的告诉我英语语法，状语从句是什么
用作状语的从句叫做状语从句(adverbial clause)。引导状语从句的关联词是某些从属连词。如：
The sun was out again when I rode up to the farm. 当我骑马到达农场时，太阳又落山了。(关联词是从属连词when)
He distrusted me because I was new. 他不信任我，因为我是新来的。(关联词是从属连词because)
I met him as I was coming home. 在回家的时候，我遇见了他。(关联词是从属连词as)
He orders me about as if I were his wife. 他指我干这干那，好像我是他妻子似的。(关联词是从属连词as if)
状语从句同状语一样，在句中的位置比较灵活，可置于句首、句末或句中。如：
When it rains, I usually go to the office by bus. 逢下雨，我通常乘公共汽车上班。(从句置于句首)
Stay where you are! 就地停着!(从句置于句末)
I come here every month since I was a child to see my grandfather. 我从小就每月来看我的祖父。(从句置于句中)
状语从句位于句首时，常用逗号分开。如从句较短同时与主句的关系又较密切时，亦可不用逗号。如：
As the car was so small he sold it. 由于车子太小，所以他把车卖了。(从句与主句关系密切)
状语从句位于句末时，其前一般不用逗号（因为连接词已经把主句和从句区隔得很清楚了）。如从句与其前的主句关系不甚密切，尤其是作为添补之词时，其前则用逗号。如：
She’s far too considerate, if I may say so. 恕我直言，她太体谅人了。(从句与主句的关系不甚密切)
Ought I to take it, when I have only just come in? 我该喝酒吗?我刚刚进来呀。(从句为添补之词)
状语从句根据其用途可分为时间状语从句、地点状语从句、原因状语从句、结果状语从句、程度状语从句、目的状语从句、条件状语从句、让步状语从句、方式状语从句九种。
希望我能帮助你解疑释惑。
⑦ 英语语法状语]从句
定语从句是由关系代词和关系副词引导的从句，其作用是作定语修饰主句的某个成分，定语从句分为限定性和非限定性从句两种。状语从句分为时间状语从句，结果状语从句，让步状语从句，原因状语从句，条件状语从句以及行为方式状语从句。名词从句包括主语从句，宾语从句，表语从句和同位语从句及there be句型。
一、 限定性定语从句
1. that即可代表事物也可代表人，which代表事物；它们在从句中作主语或宾语，that在从句中作宾语时常可省略关系词，which在从句中作宾语则不能省略。而且，如果which在从句中作“不及物动词＋介词”的介词的宾语，注意介词不要丢掉，而且介词总是放在关系代词which的前边，但有的则放在它原来的位置
2. which作宾语时，根据先行词与定语从句之间的语义关系，先行词与which之间的介词不能丢
3. 代表物时多用which，但在带有下列词的句子中用that而不用which，这些词包括all, anything, much等，这时的that常被省略
4. who和whom引导的从句用来修饰人，分别作从句中的主语和宾语，whom作宾语时，要注意它可以作动词的宾语也可以作介词的宾语
5. where是关系副词，用来表示地点的定语从句
6. when引导定语从句表示时间
〔注〕值得一提的是，表示时间“time"一词的定语从句只用when引导，有时不用任何关系代词，当然也不用that引导
By the time you arrive in London, we will have stayed there for two weeks.
I still remember the first time I met her.
Each time he goes to besiness trip, he brings a lot of living necessities, such as towers, soap, toothbrush etc.
7. whose是关系代词，修饰名词作定语，相当于所修饰成分的前置所有格
8. 当从句的逻辑主语是some, any, no, somebody, anybody, nobody, something, anything, everything或nothing时，常用there is来引导
二、非限定性定语从句：非限定性定语从句的作用是对所修饰的成分作进一步说明，通常和主句间用逗号隔开，将从句拿掉后其他部分仍可成立
1. which引导的非限定性定语从句来说明前面整个句子的情况或主句的某一部分
2. 在引导限定性定语从句时，that有时相当于in which, at which, for which或at which
Attitudes towards daydreaming are changing in much the same way that(in which) attitudes towards night dreaming have changed. 人们对白日做梦的态度正在改变，这与人们对夜间做梦的看法的变化有非常相似之处。
I like the music for the very reason that(for which) he dislike it. 我出于某种原因喜欢这种音乐，而他恰恰与我相反。
We arrived the day that(on which) they left. 刚好我们到的那天他们走了。
3. 有时as也可用作关系代词
4. 在非限定性定语从句中，不能用that，而用who, whom代表人，用which代表事物
状语从句
§ 1状语从句的种类
用来修饰谓语动词、其它动词、定语、状语或整个句子的从句叫做状语从句。状语从句可分为：
1.时间状语从句；(adverbial clause of time)
2.地点状语从句；(adverbial clause of place)
3.原因状语从句；(adverbial clause of cause)
4.条件状语从句；(adverbial clause of condition)
5.目的状语从句；(adverbial clause of purpose)
6.让步状语从句；(adverbial clause of concession)
7.比较状语从句；(adverbial clause of comparison)
8.程度状语从句；(adverbial clause of degree)
9.方式状语从句；(adverbial clause of manner)
10.结果状语从句。(adverbial clause of result)
§2状语从句的时态特点
一般情况下，时间和条件状语从句的谓语动词一般用“一般现在时”表示“一般将来时”，用“现在完成时”表示“将来完成时”。例如：
I will call you as soon as I arrive in Beijing. 我一到北京就给你打电话。（这是由as soon as引导的时间状语从句，从句中的谓语动词arrive是一般现在时，表示一般将来时，决不可用will arrive）
As soon as I have finished this work, I will go home. 我一完成此工作，就回家。（从句中的谓语动词用现在完成时have finished，表示将来完成时,决不可用will have finished）
If he comes back, please let me know.如果他回来了，请通知我。（从句中的谓语动词用comes back,表示一般将来时，决不可用will come back）
二 时间状语从句
§3时间状语从句（adverbial clause of time）
1.由when, while, as引导的时间状语从句。例如：
When you think you know nothing, then you begin to know something.当你以为自己一无所知的时候，你就是在开始知道一些事物了。
When truth is buried under the ground it grows, it chokes, it gathers such an explosive force that on the day it bursts out , it blows up everything with it.当真理被埋在地下的时候，它在生长，它感到压抑，它蓄存着这么一种爆炸性力量，一旦冒出，它就会炸破一切！
Strike while the iron is hot. 趁热打铁。
Will you watch my clothes while I have a swim. 我游泳的时候，请你照看一下我的衣服。
You can feel the air moving as your hand pushes through it. 当你的手在空气中挥动的时候，你就能感觉到空气在流动。
Our headmaster laughed as she spoke.我们的校长边谈边笑。
【区别】when, while和as的区别：when引导的从句的谓语动词可以是延续性的动词，又可以是瞬时动词。并且when有时表示“就在那时”。例如：
When she came in, I stopped eating.她进来时，我在吃饭。(瞬时动词)
When I lived in the countryside, I used to carry some water for him.当的住在农村时，我常常为他担水。（延续性的动词）
We were about to leave when he came in.我们就要离开，就在那时他进来了。
While引导的从句的谓语动作必须是延续性的，并强调主句和从句的动作同时发生（或者相对应）。并且while有时还可以表示对比。例如：
While my wife was reading the newspaper, I was watching TV. (was reading是延续性的动词，was reading和was watching同时发生)
I like playing football while you like playing basketball.我喜欢踢足球，而你喜欢打篮球。（对比）
As表示“一边……一边”，as引导的动作是延续性的动作，一般用于主句和从句动作同时发生；as也可以强调“一先一后。例如：
We always sing as we walk.我们总是边走边唱。（as表示“一边……一边”）
As we was going out, it began to snow.当我们出门时，开始下雪了。（as强调句中两个动作紧接着先后发生，而不强调开始下雪的特定时间）
2.由before和after引导的时间状语从句。注意before引导的从句不再用否定式的谓语，并且当before引导的从句位于主句之后，有时译成“就，才”。还要注意主句和从句之间的时间关系。当主句用将来时，从句总是用现在时；如果before引导的从句谓语用的是过去时，则主句动词多用过去完成时，这样以便体现动作发生的先后。After表示主句动作发生在从句动作之后。主句和从句的动作的时间关系正好与before引导的从句相反。例如：
It will be four days before they come back. 他们要过四天才能回来。
Einstein almost knocked me down before he saw me.爱因斯坦几乎把我撞倒才看到我。
My father had left for Canada just before the letter arrived.我父亲恰好在信到之前去加拿大了。
They had not been married four months before they were divorced. 他们结婚还不到四个月就离婚了。
After you think it over, please let me know what you decide.你仔细考虑过以后，告诉我你是怎样决定的。
After we had finished the work, we went home.完成工作之后，我们回家了。（从句用过去完成时，主句用一般过去时）
3.由till或until引导的时间状语从句。till和until一般情况下两者可以互换，但是在强调句型中多用until。并且要注意的是：如果主句中的谓语动词是瞬时动词时，必须用否定形式；如果主句中的谓语动词是延续性动词时，用肯定或否定形式都可以，但表达的意思不同。例如：
I didn't go to bed until（till） my father came back.直到我父亲回来我才上床睡觉。
It was not until the meeting was over that he began to teach me English.直到散会之后他才开始教我英语。
I worked until he came back.我工作到他回来为止。
I didn't work until he came back.他回来我这才开始工作。
Please wait until I arrived.在我到达之前请等我。
4.由since引导的时间状语从句。 since引导的从句的谓语动词可以是延续性的动词，又可以是瞬时动词。一般情况下，从句谓语动词用一般过去时，而主句的谓语动词用现在完成时。但在It is ＋时间＋since从句的句型中，主句多用一般现在时。例如：
I have been in Beijing since you left. 自从你离开以来，我一直在北京了。
Where have you been since I last saw you? 自上次我和你见面以后，你到哪里去了？
It is four years since my sister lived in Beijing. 我妹妹不在北京住有四年了。
It is five months since our boss was in Beijing.我们老板离开北京有五个月了。
5.由as soon as, immediately, directly, instantly, the moment, the instant, the minute, 等引导的时间状语从句。这些连词都表示“一……就”。例如：
I will go there directly I have finished my breakfast. 吃完早饭，我立即到那里去。
The moment I heard the news, I hastened to the spot.我一听到消息，马上赶到了出事地点。
As soon as I reach Canada, I will ring you up. 我一到加拿大，就给你来电话。
【注意】hardly(scarcely, rarely)…when / before, no sooner…than相当于as soon as之意。主句用过去完成时，从句用一般过去时。当hardly, scarcely, rarely和no sooner位于句首时，主句应用倒装语序。例如：
He had no sooner arrived home than he was asked to start on another journey. 他刚到家，就被邀请开始另一旅程。
No sooner had the sun shown itself above the horizon than he got out of bed to commence work.太阳刚从地平线上升起，他就起床劳动去了。
Hardly had I sat down when he stepped in.我刚坐下，他就进来了。
He had hardly fallen asleep when he felt a soft touch on his shoulder.这个阿拉伯人刚要入睡就感到肩膀上被轻轻一触。
6.由by the time引导的时间状语从句。注意时态的变化：在一般情况下，如果从句的谓语动词用一般过去时，主句的谓语动词用过去完成时；如果主句的谓语动词用一般现在时，主句的谓语动词用将来完成时。例如：
By the time you came back, I had finished this book.到你回来时，我已经写完这本书了。
By the time you come here tomorrow, I will have finished this work. 你明天来这儿的时候，我将已经完成此工作了。
7.由each time, every time和whenever引导的时间状语从句。例如：
Each time he came to Harbin, he would call on me. 他每次来哈尔滨，总是来看我。
Whenever that man says“To tell the truth”, I suspect that he's about to tell a lie.每当那个人说“说实在话”的时候，我猜想他就要说谎了。
You grow younger every time I see you. 每次遇到你，见你更年轻了。
8.由as long as和so long as引导的时间状语从句。这两个连词表示“有多久……就多久”。例如：
You can go where you like as long as you get back before dark. 你可以随意到哪里去，只要在天黑以前回来就行。
I will fight against these conditions as long as there is a breath in my body! 只要我一息尚存，我就要反对这种境况。
三 地点状语从句
§4地点状语从句 (adverbial clause of place)
地点状语从句一般由连接副词where, wherever等引导，已经形成了固定的句型，例如：
句型1：Where＋地点从句，（there）＋主句。
【注意】此句型通常译成“哪里……哪里就……”；主句在从句后面时，there可用可不用；如果主句在从句的前面时，一般都不用there。例如：
Where there is no rain, farming is difficult or impossible.在没有雨水的地方，耕作是困难的，或根本不可能的。
They were good persons. Where they went, there they were warmly welcomed. 他们都是好人。因此他们走到哪里都受到热烈欢迎。
You should have put the book where you found it. 你本来应该把书放回原来的地方。
Where the Communist Party of China goes, there the people are liberated.哪里有了中国共产党，哪里人民得解放。
句型2：Anywhere/ wherever＋地点从句，＋主句。
【注意】anywhere本身是个副词，但是，常可以引导从句，相当于连词，意思相似于wherever, anywhere引导的从句可位于主句之前，也可以位于主句之后。 而wherever本身就是个连词，表示“在何处，无论何处”。例如：
Wherever the sea is , you will find seamen.有海就有海员。
⑧ 英语神人 快来帮忙啊~~~ 是关于 英语语法的问题~~~~ 单个 as to 可以引导 结果或目的状语从句么~~
不可以吧。。as to 是另一个意思：至于/关于 （=about）
如果有省略了的用法，只内能说是informal的。为了不引容起歧义，根本没必要省略。直接在前面加个so不就得了。
eg: We consulted as to what should be done next.
我们计议一下， 下一步该怎么办。
In one sense, we may say that any theory as to how to live is wrong.
从某种意义上讲，我们可以说任何关于生活的理论都是不正确的。