一、用to do sth表目的
用不定式表目的是最简单也是最常用的方法，它既可以用于句末，也可用于句首，但比较而言，用于句首时，其强调意味较浓。如：
After missing a term through illness he had to work hard to catch up with the others．
他因病一学期未上课，得努力赶上其他同学。
To avoid any delay please phone your order direct．
为免延误，请直接打电话预订。
To keep themselves awake they sat on the floor and told each other stories．
为了不至于睡着，他们坐在地板上轮流着讲故事。
To avoid back problems， always bend your knees when you lift heavy objects．
为了不使背部受伤，你在扛重东西时，一定要将膝盖弯曲着。
不定式的否定式为not to do sth，而不是 to not do sth。如：
She had to struggle not to give in to a desire to laugh．
她极力控制自己不要笑出来。
Then there was the mad rush not to be late for school．
然后就是匆忙往学校赶，以免迟到。
I went to France not to study French， but to study architecture．
我去法国不是为了学法语，而是为了学建筑。
He claimed he had bought the cigarettes for home consumption， not to sell them．
他声称他买烟是为了自家享用，不是为了出售。
二、用so as to do sth表目的
so as to do sth是to do sth的变体，意思是“以便”“为了”“为的是”等。用so as to do sth表示目的时，它通常用于句末。如：
I left a message so as to be sure of contacting her．
我留下了张条子以便与她取得联系
The two lovers dropped back so as to be alone．
那对情人落在后面，为的是两人好单独在一起。
I always keep fruit in the fridge so as to keep insects off it．
我总是把水果放在冰箱里，以防虫子叮咬。
表示目的的so as to do sth有时也可放在句首（但是若so as to do sth是表示结果，则不可放在句首）。如：
So as to show his boss what a careful worker he was， he took extra trouble over the figures．
为了向老板显示他是个工作非常细心的人，他在这些数字上费了比平常更多的力气。
so as to do sth的否定式是so as not to do sth，意思是“为了不……”“以免”。如：
They tiptoed upstairs so as not to wake the baby．
他们踮着脚上楼，以免吵醒孩子。
We left in the daytime so as not to arouse suspicion．
我们在白天离开以免引起怀疑。
I shut the door quietly， so as not to wake the baby．
为了不惊醒宝宝，我轻轻地关上门。
三、用in order to do sth表目的
in order to do sth也是to do sth的变体。用in order to do sth表示目的时，它既可以用于句末，也可用于句首，但比较而言，用于句首时，其强调意味较浓。如：
She lied about her age in order to get the job．
她为了谋得那份工作隐瞒了年龄。
She arrived early in order to get a good seat．
她到得很早，图的是得个好座位。
Teamwork is required in order to achieve these aims．
完成这些目标需要团队合作。
In order to get the job， you must be able to drive．
要做这项工作你得会开车。
In order to get into a good school，， I must study even harder．
为了考入一个好的学校，我必须更加用功。
in order to do sth的否定式是in order not to do sth，意思是“为了不……”“以免”。如：
She slept in a separate room in order not to disturb him．
她在另一房间睡觉，为了不至打扰他。
Please reply at once in order not to lose this opportunity at a lower price．
请立即回复，以免失去这次低价的机会。
They must have worn gloves in order not to leave any fingerprints．
他们一定戴上了手套，以防留下指纹。
注意，in order to do sth 还有另外一个否定形式，那就是 not in order to do sth，其意为“不是为了……”。如：
Big farmers are moving in， not in order to farm， but in order to speculate with rising land prices．
大农场主正在不断涌进来，不是为了耕作，而是要利用不断上涨的地价进行投机。
This expression refers to encounters between ships of hostile nations． One ship might fire a shot at another，
not in order to hit it， but to warn it to move．
这个表达源于敌对国船只在海上相遇时，一方可能向另一方鸣炮，不是为了击中目标，而是警告其快速离开。
四、用so that表目的
so as to和so that均可表示目的，两者的区别是，前者引出不定式，后者用以引导目的状语从句。与用so as to do sth表示目的的情形相似，so that引导的目的状语从句通常位于主句之后。如：
I will give him a key so that he can get into the house whenever he likes．
我会给他一把钥匙，好让他能随时进来。
I got here early so that we could have a few minutes alone together．
我到这儿早些是为了我们能单独在一起待几分钟。
They wrote the notices in several languages so that foreign tourists could understand them．
他们把通知用几国文字写出来，以便让各国游客都能看得懂。
有时可省略其中的that。如：
Leave the keys out so （that） I remember to take them with me．
把钥匙放在外面，好让我记得带。
I deliberately didn’t have lunch so （that） I would be hungry tonight．
我有意没吃午饭，为的就是让自己今晚能感到饿。
so that 引导的目的状语从句有时还可置于主句之前（但是，若so that引导的从句是表示结果，则不可放在句首）。如：
So that I shouldn’t worry， he phoned me on arrival．
为了不让我担心，他一到就给我打了电话。
So that I shouldn’t forget it， I made a knot in my handkerchief．
为了免得忘记，我将手帕打了一个结。
So that the coming generation can learn the martial arts， he has recently devoted much time to writing books on the subject．
为了下一代能够学会这些武术，他近来花了许多时间著书立说。
五、用in order that表目的
in order to和in order that均可表示目的，两者的区别是，前者引出不定式，后者用以引导目的状语从句。与用in order to do sth表示目的的情形相似，in order that引导的目的状语从句可以位于主句之前或之后。如：
We arrived early in order that we could get good seats．
我们到得早，以便找到好座位。
These men risk their lives in order that we may live more safely．
这些人甘冒生命危险，为的是让我们生活更安全。
I bought a new car in order that my wife might learn to drive．
我买了一辆新车，以便我妻子学习驾驶。
In order that you may create such a picture， you have to possess certain artistic weapons．
创作这样的画，你得具有某些艺术手段。
从功能语法的角度,英语状语的分类:环境状语,情态状语,连接状语,分别体现语言的三大元功能:概念功能,人际功能,语篇功能。下面是我整理的英语什么是状语，欢迎阅读。
英语什么是状语就是动词的八个状态:时间、地点、原因、状态、目的、结果、方式、程度.
修饰动词、形容词、副词以及全句的句子成份叫状语。例如：
My parents often tell us about their bitter life in the past.我父母经常给我们讲他们过去的苦难生活。
She studies hard.她努力学习。
I am very tired.我非常疲倦。
英语状语有哪些种类英语中的状语按其用途，可以分为时间状语、地点状语、方面状语、原因状语、结果状语、目的状语、条件状语、让步状语、程度状语、方式状语、伴随状语等11种。
一、时间状语
She is to be married next month. 她预定在下个月结婚。
I’ll meet you at 4 o’clock. 我将在4点钟和你见面。
A lot of students missed my lecture yesterday. 昨天许多学生误了我的课。
二、地点状语
He lives over the mountain. 他住在山的那一边。
I first met him in Paris. 我初次见到他是在巴黎。
The children are swimming in the river. 孩子们正在河里游泳。
注：地点状语除表位置外，还可以表“出发”“去向”“距离”等。
如：Are you glad to be going back to school? 返回学校你感到高兴吗?
They lived many miles from the town. 他们住的地方离镇子好几英里远。
三、方面状语
She is very weak in physics. 她物理很不行。
China is very rich in natural resources. 中国自然资源丰富。
This is better in every way than that. 这个在哪一方面都比那个要好。
The bridge is 2500 meters in length and 150 meters in height. 这座桥长2500米，高150米。
四、原因状语
He was surprised at what she said. 听到她说的话，他很吃惊。
He succeeded by hard work. 他由于努力工作而成功。
He was sent to prison for robbery. 他因为抢劫而坐牢。
Last week she fell ill from cold. 上星期她着凉生病了。
We’re proud of our motherland. 我们为祖国感到骄傲。
五、结果状语
He talked his wife into buying a car. 他说服他妻子买一辆小汽车。
The box is too heavy for me to lift. 这个箱子太重了，我提不动。
It rained heavily, causing severe flooding in that country. 大雨滂沱，造成了那个国家洪水泛滥。
He went to Africa in 1963, never to come back. 他在1963年到非洲，然后就再也没回来过了。
六、目的状语
They went out for a walk. 他们出去散步了。
He saves on behalf of his son. 他为儿子存钱。
He stood aside for her to pass. 他靠边站让她过去。
He cupped his ear to hear better. 他的手捂着耳朵，以便听得更清楚。
He went to the south in search of a better life. 他去南方寻求更好的生活。
I went to France not to study French, but to study architecture. 我去法国不是为了学法语，而是为了学建筑。
七、条件状语
Can you see without your glasses? 你不戴眼镜能看得清东西吗?
United, we standdivided, we fall. 团结则存，分裂则亡。
With more money I would be able to buy it. 钱多一点的话，我就买得起。
To look at him you could hardly help laughing. 看到他你就会忍不住笑起来。
We must be losing at least a third of our staff under new technology. 在新的技术条件下，我们必定要解雇至少三分之一的员工。
Weather permitting, we’ll have the match tomorrow. 天气允许的话，我们将于明天进行比赛。
八、让步状语
For all his money, he’s a very lonely man. 他虽然富有，可是非常寂寞。
Carol went to work in spite of feeling ill. 卡洛尔尽管感到不舒服仍去上了班。
With all his efforts, he lost the match. 虽然尽了全力，他还是输了那场比赛。
You couldn’t do that to save your life. 你即使为了救自己的命也不能那样做。
Laughed at by everybody, he had my sympathy. 人人都嘲笑他，但我却同情他。
Knowing all this, they made me pay for the damage. 他们尽管了解这一切，还是要我赔偿损失。
九、程度状语
I don’t like coffee very much. 我不太喜欢咖啡。
To a great extent, it is not fair. 在很大程度上，这是不公平的。
The system which is used in this school is very successful. 这个学校所施行的制度是非常成功的。
十、方式状语
We came on the bus. 我们坐公共汽车来的。
You must pay the bill in cash. 你必须用现金付账。
I watched the game on television. 我在电视上收看了那场比赛。
We see with our eyes, and hear with our ears. 我们用眼睛看，用耳朵听。
I heard of the job through a newspaper advertisement. 我从报上的广告中知道了这个工作。
十一、伴随状语
I slept with the window open. 我开着窗睡觉。
She said good-bye with tears in her eyes. 她含着泪水说再见。
He ran up to her breathing heavily. 他气喘吁吁地跑到她跟前。
英语的语法有：一般现在时、一般过去时、现在进行时、过去进行时、一般将来时、过去将来时、现在完成时、现在完成进行时和过去完成时等。状语的种类可分为：地点、时间、原因、目的、结果、条件、让步、程度、方式、伴随情况等几类。
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