动词不定式做状语时表示目的和结果的用法
不定式做目的状语,结果状语从句
必修二Module 2 No Drugs Period3 Grammar设计人日期：Nov29姓名班级大家都知道，在英语中动词不定式的重要作用之一就是表示目的，即“为了…”，不定时做目的状语时，常以下面形式出现：to do , in order to do , so as to doI got up early (in order/so as)to catch the early bus.He raised his voice (so as/in order )to be heard by all the students.In order to/To get there in time, they started early.(哪个不能置于句首呢？)Let’s hurry so as/in order not to be late for school.(不定式的否定形式是：)He spoke slowly for us to follow him.(不定式做目的状语式，句子的主语就是不定式动作的发出者。
但如果不是，就要用: )All these gifts must be mailed immediately so as to be received in time for Christmas.(不定式的被动式是：)He hurried home only to find nobody in.She was too excited to say a single word.(译为：)We found the room not big enough to hold so many people.(译为：)He is so stupid as to do that.(译为：)以上的四个句子中不定式都做_________________状语。
We jumped with joy to hear the good news.We are proud to be young people of China.不定式用于形容词后表示______________.大家也会一些分词作状语的知识，想一想doing 表示：having done 表示：having been done 表示：done 表示：1. 2.2.Lets do some ex.1._______the employees’working efficiency(效率), the supervisor(管理者) will allow them to have a coffee break.A. ImprovingB. To improveC. Having improvedD. Improved2.The children talked so loudly at dinner table that I had to struggle _______.A. to be heardB. to have heardC. hearingD. being heard3.When asked why he went there, he said he was sent there _____for a space flight.A. trainingB. being trainedC. to have trainedD. to be trained4.It was unbelievable that the fans waited outside the gym for three hours just _____a look at the sports stars.A. hadB. havingC. to haveD. have5.As the light turned green, I stood for a moment, not _____, and asked myself what I was going to do.A. movedB. movingC. to move C. being moved6.Don’t sit there _____nothing. Come and help me with this table.A. doB. to doC. doingD. and doing7.He hurried to the station only_____ that the train had left.A. to findB. findingC. foundD. to have found8.The secretary worked late into the night, ______a long speech for the president.A. to prepareB. preparingC. preparedD. was preparing9.A small plane crashed into a hillside five miles east of the city, _____all four people on board.A. killedB. killingC. killsD. to kill10.Michael’s new house is like a huge palace, _______with his old one.A. comparingB. comparesC. to compareD. compared11.When ________different cultures, we often pay attention only to the differences without noticing the many similarities.A. comparedB. being comparedC. comparingD. having compareddies and gentlemen, please remain _____until the plane has come to acomplete stop.A. seatedB. seatingC. to seatD. seat13.I like getting up very early in summer, The morning air is so good _______.A. to be breathedB. to breatheC. breathingD. being breathed结果状语从句结果状语从句表示事情的结果，常置于主句之后。
高考英语非谓语动词作状语的用法 知识点
分考点1 不定式作状语Point 1 做目的状语，意为“为了”，可以单独放在句首、句中或句末。
To pass the college entrance exam, we must work hard.为了通过大学入学考试，我们必须努力学习。
Mike had to shout to make himself heard above the sound of the music.麦克不得不大声说话，以便能在如此大的音乐下被别人听见。
【特别注意】也可用in order to 或so as to 表示目的，但so as to 不能用于句首。
The bus stopped so as to pick up passengers.公交车停下来以便搭载乘客。
He got up early in order to catch the first bus.他早起是为了赶上第一版公交车。
Point 2 作结果状语。
常表示令人意外的结果。
Only/just to do 表示意想不到的结果Enough to do 足够做...Too...to do 太...而不能.....So/such... as to...如此...以至于....I went to see him last night only/ just to find him out.我昨晚去找他。
结果发现他出去了。
（表示出乎意料的结果）Mary is too tired to do the job.玛丽太累了，做不了这项工作。
He is old enough to go to school.他到上学的年龄了。
Point 3 作原因状语。
常用在表示情感或态度的sorry, surprised, disappointed, excited, glad,happy 等形容词后，常用结构为“主语+系动词+形容词+to do”。
Tom was very happy to see his mother.汤姆看到她的妈妈很高兴。
to do作状语
to do作状语作为一个英语学习者，我们肯定都有最基本的语法知识。
在英语语法中，状语是十分重要的一种语法结构。
几乎每一个句子中都会有状语的存在，而状语的种类也非常繁多，比如时间状语，地点状语，方式状语等等。
那么，今天我们就来学习一下“to do作状语”。
一、to do作状语的概念因为to do是动词不定式的形式，因此to do作状语实际上就是用一个不定式作状语。
该状语通常表达出一种目的、结果或结果预期，也可以在复杂句中作目的状语、结果状语，实现分句互动，使主句与从句之间建立关系。
二、to do作状语的几种用法1.表示目的to do作状语可以表达一个目的或用途，在句中通常做目的状语，修饰谓语动词。
例如：To learn English well is her primary goal.（学好英语是她的主要目标。
）He goes to the library to read some books.（他去图书馆看书。
）2.表示结果to do作状语还可以表示一种结果或结果预期，这种情况下通常可以用so as to do和in order to do两种形式代替。
例如：She runs for an hour every day to keep fit.（她每天跑一个小时以保持身材。
）I eat a lot of vegetables to keep healthy.（我吃很多蔬菜以保持健康。
）3.时间状语to do作为时间状语的情况比较少，通常表达时间的判断，而句子中一般不存在谓语。
常常用于描述固定时间。
例如：1. We have got three hours to wait.2. He has two weeks to prepare for the exam.三、to do作状语的注意事项1.在to do前面不需要加上介词“for”或“in”。
2.to do作状语是需要固定搭配的，不能随意插入或更改顺序，否则就可能造成语法连贯性的问题。
语法不定式做状语
4. 不定式还可以作结果状语或原因状语： 结果状语：
1. He was so late as to miss half of the lecture.
2. She is such a good student as to be
respected by all her classmates.
3. The house is large enough to hold 2000
so + many / few +名词复数 + that
1) She has so few friends that she often feels lonely.
2) There were so many people at the station that I didn’t recognize her.
1.He hurried to his house, only to find it had been broken into.
2.Her parents died, leaving her an orphan.
3.There was a tornado yesterday, causing 100 deaths.
early in the morning .
5.不定式有时需要用被动形式、完成形式 或进行时。
1.She was sent to England so as to be educated.
2.She left home, never to be seen again. 3.He was shamed to be seen doing this
Module Two
Grammar
——动词 to 不定式作状语
动词不定式作结果状语：
动词不定式作结果状语：动词不定式作结果状语动词不定式是一种常见的短语结构，在句子中可以充当结果状语。
动词不定式作为结果状语时，说明主要动词的结果或目的。
本文将介绍动词不定式作为结果状语的用法和例句。
1.动词不定式作结果状语的位置和形式动词不定式作为结果状语通常位于句子中的谓语动词之后，修饰整个句子或主语。
它的形式是“to + 动词原形”，也可以用动词不定式的完成式形式（“to have + 过去分词”）。
2.动词不定式作结果状语的用法动词不定式作为结果状语可以表达以下几种意义：目的：表示主要动作的目的或预期结果。
结果：表示主要动作的效果或将要发生的结果。
原因：表示主要动作的原因或理由。
3.动词不定式作结果状语的例句下面是一些动词不定式作为结果状语的例句：To learn a new language is my goal.（研究一门新语言是我的目标。
）I went to the library to ___.（我去图书馆借书。
）She works hard to improve her English.（她努力工作以改善她的英语。
）He ran fast to catch the bus.（他跑得很快以赶上公交车。
）They studied hard to pass the exam.（他们努力研究以通过考试。
）She saved money to buy a new car.（她节省钱来买一辆新车。
）4.总结动词不定式作为结果状语可以帮助我们描述主要动作的目的、结果或原因。
它位于谓语动词之后，修饰整个句子或主语。
在使用时，我们需要注意动词不定式的形式和语境。
动词不定式作状语的用法
动词不定式作状语的用法动词不定式是一种动词形式，在句子中可以作为状语来修饰谓语动词或者整个句子。
它通常由“to+动词原形”构成，但也有几个特殊的不定式形式，如及物动词的不定式可以省略to，或者不定式的否定形式为“not to+动词原形”。
在下面的文章中，我们将详细讨论动词不定式作状语的几种常见用法。
1. 作目的状语：不定式作为目的状语来表达一个动作或者目的的目的。
例句1：I went to the supermarket to buy some groceries.（我去超市买一些杂货）例句2：I study hard to pass the exam.（我努力学习以通过考试）在上述例句中，不定式“to buy”和“to pass”分别表示购买和通过的目的。
2. 作结果状语：不定式作为结果状语来表达一个动作或者事件发生的结果。
例句1：She ran too fast to catch the bus.（她跑得太快以至于没赶上公交车）例句2：He exercises regularly to stay healthy.（他定期锻炼以保持健康）在上述例句中，不定式“to catch”和“to stay”分别表示未能赶上和保持健康的结果。
3. 作方式状语：不定式作为方式状语来描述一个动作或者事件的方式。
例句1：He spoke in a soft voice to not disturb others.（他小声说话以免打扰其他人）例句2：They walked slowly to enjoy the beautiful scenery.（他们慢慢地走以欣赏美景）在上述例句中，不定式“to not disturb”和“to enjoy”分别表示不打扰和欣赏的方式。
4. 作条件状语：不定式作为条件状语来描述一个条件或者前提。
例句1：In order to pass the test, you need to study hard.（为了通过考试，你需要努力学习）例句2：To be successful, you have to work hard.（要成功，你必须努力工作）在上述例句中，不定式“to pass”和“to be successful”分别表示通过和成功的条件。
不定式做原因状语
不定式做原因状语不定式做原因状语是英语语法中的一种句型结构，用于表示动作或事件的原因。
不定式作为原因状语，常常使用不定式的动词原形，被放在句子中作为原因的陈述。
在本文中，我们将探讨不定式作为原因状语的用法，并提供一些例句来加深理解。
一、不定式做原因状语的用法：1.表示目的：不定式作为原因状语可以表达一些动作或事件的目的或目标。
这种结构常常使用不定式的动词原形，放在句子中作为目的的陈述。
例如：- She studied hard to pass the exam.（她努力学习是为了通过考试。
）- We work hard to achieve success.（我们努力工作是为了获得成功。
）- He exercises regularly to stay healthy.（他经常锻炼是为了保持健康。
）2.表示结果：不定式作为原因状语还可以表示一些动作或事件的结果或后果。
这种结构也常使用不定式的动词原形，放在句子中作为结果的陈述。
例如：- She ran fast to win the race.（她跑得很快是为了赢得比赛。
）- They spoke loudly to be heard.（他们大声说话是为了被听到。
）- I eat healthy to stay fit.（我吃健康的食物是为了保持健康。
）3.表示原因：不定式作为原因状语还可以表示一些动作或事件的原因。
这种结构通常使用不定式的动词原形，放在句子中作为原因的陈述。
例如：- He left early to catch the bus.（他早早离开是为了赶公交车。
）- They saved money to buy a house.（他们省钱是为了买房。
）- She apologized to make amends.（她道歉是为了弥补错误。
）二、不定式做原因状语的例句：1. I went to the library to borrow some books for my research.（我去图书馆是为了借些书做研究。
动词不定式作原因状语的用法
动词不定式作原因状语的用法
动词不定式是一种常用的语法结构，可以用作原因状语来表达某个动作或者状态的原因。
在句子中，动词不定式通常位于句子的末尾，有时也可以放在句子的前面。
以下是动词不定式作原因状语的几种常见用法：
1. 表示目的或原因：动词不定式可以用来表达某个动作或状态的目的或原因。
例如：
- 我来这里是为了研究。
(I came here to study.)
- 为了赚钱，他每天都工作到很晚。
(He works late every day to earn money.)
2. 表示结果或影响：动词不定式可以用来表示某个动作或状态的结果或影响。
例如：
- 这个消息使他很开心。
(The news made him happy.)
3. 表示目标或期望：动词不定式可以用来表示某个动作或状态
的目标或期望。
例如：
- 我们努力研究是为了取得好成绩。
(We study hard to get good grades.)
- 她每天早上锻炼是为了保持健康。
(She exercises every morning to stay healthy.)
总结起来，动词不定式作原因状语的用法包括表示目的或原因、表示结果或影响，以及表示目标或期望。
在使用动词不定式时，需
要根据具体语境选择合适的动词和适当的时态。
注意：动词不定式作原因状语时，动词不定式通常不带“了”，
且其位置可以灵活调整，但一般放在句子的末尾。
以上是动词不定式作原因状语的用法的简要介绍。
希望对您有
所帮助！。
动词不定式作状语
动词不定式作状语动词不定式作状语不定式作状语可以表示行为的目的、结果、原因等。
(to do/ not to do）1。
表示目的To save the child， he laid down his life。
注意：有时为了强调或突出这种目的，也可以用in order (not） to do,和so as （not) to do结构（so as to do不可以置于句首）。
He shouted and waved in order to be noticed。
In order to be noticed, he shouted and wavedI’ll write down his telephone number so as not to forget it。
2.表示结果He got to the station only to find the train had gone。
He got to the station only to be told the train had gone。
We came home to find our garden neat and tidy。
我们回到家里发现花园整整齐齐。
He hurried to the house only to find that it was empty。
他急忙赶到那所房子，却发现空无一人。
He survived the crash only to die in the desert。
飞机坠毁时他幸免于难，后来却死在沙漠里.After the meeting, they parted, never to see each other again.He went abroad， never to be heard from.不定式表示结果常见于下列句型.1) so .。
as to doWould you be so kind as to lend me your bicycleI'm not so simple as to think it will be easy. 我决不至于笨得以为那是容易的事.The house is so high and narrow as to resemble a tower。
非谓语动词作状语
• He walked up and down the room, lost in thought.
注意：
• 1.某些动词的过去分词已经形容词化，常用于 一些系表结构中。此时的过去分词既不表被 动也不表完成，而表示一种状态。这样的词 有：lost；seated；hidden；lost/absorbed in； dressed in；tired of 等。
• Though beaten, we were not discouraged. • =Though we were beated, we..
• Once tasted, the dish is hard to forget. • =once it is tasted,语 的区别：
• 可表示原因.结果.条件.让步.方式伴随等，可转 化为相应的状语从句
• 1.表时间 • Walking out of the room, he saw the boy still
there.
• = when he walked out of the room, he...
• Having made full preparations, we are ready for the exam.
• Honestly speaking, he is not fit for the job. • Judging from his accent, he is from the
south.
三、过去分词ed作状语
• 过去分词做状语可表示被动和完成的动作。 • 表示时间、原因、条件、让步、结果、方式等，相
• If you don’t make use of time, you will regret.
动词不定式表目的4则
动词不定式表目的4则以下是网友分享的关于动词不定式表目的的资料4篇，希望对您有所帮助，就爱阅读感谢您的支持。
动词不定式做状语时表示目的和结果的用法（一）动词不定式做状语时表示目的和结果用法总结1. 作目的状语:I came here to see you.T o stop the train, pull the lever downwards.目的状语还可以用如下表达法：肯定：toin order to + 动词原形so as toI come to see her. = I come in order to see her. = I come soas to see her.thatso that + 主语+ may/might + 动词原形I come that I may see her. = I come in order that I may see her. = I come so that I may see her.否定：not toin order not to + 动词原形so as not tothatso that + 主语+ may/might ++ 动词原形in order thatHe went away not to see me.= He went away in order not to see me.= He went away so as not to see me.= He went away in order that he might not see me.= He went away that he might not see me.= He went away so that he might not see me.in order to, in order that和so as to, so that的区别in order to可以用在句首或句末，但so as to只能用在句末。
非谓语动词作状语讲解
非谓语动词作状语讲解非谓语动词是指动词的非谓语形式，包括动词不定式、动名词和分词。
它们在句子中可以充当状语，用来修饰动词、形容词、副词或整个句子。
本文将对非谓语动词作状语的使用进行详细讲解。
一、动词不定式作状语动词不定式一般由“to + 动词原形”构成，常用作目的状语、结果状语和方式状语。
1. 目的状语动词不定式作目的状语时，表示动作的目的或意图。
常见的句式有：in order to / so as to + 动词原形，例如：- He works hard in order to earn more money.- She took the train so as to arrive on time.2. 结果状语动词不定式作结果状语时，表示结果或后果。
常见的句式有：so +形容词/副词 + as to + 动词原形，例如：- He was so tired as to fall asleep immediately.- The problem is so difficult as to require professional help.3. 方式状语动词不定式作方式状语时，表示动作的方式或方法。
常见的句式有：by + 动词不定式，例如：- They learned English by watching movies.- He solved the puzzle by using his intelligence.二、动名词作状语动名词以-ing形式构成，常用作原因状语、时间状语和方式状语。
1. 原因状语动名词作原因状语时，表示句子的原因或动作发生的原因。
常见的句式有：by + 动名词，例如：- She managed to pass the exam by studying hard.- He improved his skills by practicing every day.2. 时间状语动名词作时间状语时，表示动作发生的时间。
不定式作状语的用法总结
不定式作状语的用法总结以下是小编为大家整理的不定式作状语的用法总结，希望能帮助大家更好地认识不定式，提高英语水平1) 表原因I'm glad to see you.3)作结果状语，表事先没有预料到的，要放在句子后面。
What have I said to make you angry.He searched the room only to find nothing.2)目的状语To… only to (仅仅为了), in order to, so as to, so(such)… as to… (如此……以便……)He ran so fast as to catch the first bus. 他飞快地跑以便赶上第一班车。
I come here only to say good-bye to you. 我来仅仅是向你告别。
典型例题The chair looks rather hard, but in fact it is very comfortable to ___.A. sitB. sit onC. be seatD. be sat on答案：B. 如果不定式为不及物动词，其后应有必要的介词。
当动词与介词连用时，常位于"形容词+动词不定式"结构的末尾。
--------------------------------------------------------------------------------------不定式作状语的用法总结相关文章推荐：7.12 不定式的特殊句型so as to常后接to do sth和for [of] doing sth的名词practise 的用法详解高中英语语法知识点归纳总结seem做系动词的用法讲解。
to do 不定式作状语
to do 不定式作状语
不定式作状语是英语中常见的非谓语动词用法，用于表达动词不定式的逻辑主语或逻辑宾语。
不定式可以作以下几种状语：
1、作目的状语
不定式可以表示行为的目的。
例如：
He got up early to catch the bus.
为了赶公共汽车，他早起得很早。
2、作原因状语
不定式可以表示原因，通常与be或feel连用。
例如：
I am sorry to hear that you are leaving.
我听说你要走了，我很难过。
3、作结果状语
不定式可以表示结果，通常与only连用。
例如：
He hurried to the airport only to find that the flight had been cancelled.他匆忙赶到机场，结果却发现航班已被取消。
4、作方式状语
不定式可以表示方式或方式状语。
例如：
To blend in with the crowd, he wore a disguise.
为了融入人群，他化了装。
5、作伴随状语
不定式可以表示伴随的动作或状态。
例如：
He stood there, thinking for a moment.他站在那里想了一会儿。
动词不定式作结果状语的用法
动词不定式作结果状语的用法动词不定式是一种特殊形式的动词，经常被用作结果状语来表达某个动作或状态的结果。
动词不定式作结果状语时，通常放在句子的末尾，起到修饰动词、形容词或副词的作用。
以下是一些常见的用法和句型结构：1. 修饰动词动词不定式可以修饰另一个动词，表示前一个动作的目的或结果。
例如：- I went to the store to buy some groceries.（我去商店买些杂货。
）- He practices every day to improve his English.（他每天练以提高他的英语水平。
）2. 修饰形容词动词不定式可以修饰形容词，表示形容词所描述的状态或程度。
例如：- She was too tired to continue working.（她太累了，无法继续工作。
）- The exercise was too difficult for me to solve.（这道练对我来说太难了。
）3. 修饰副词动词不定式可以修饰副词，表示副词所描述的方式或程度。
例如：- He spoke loudly to be heard by everyone.（他大声说话，为了让每个人都能听到。
）- She ran quickly to catch the bus.（她快速跑去赶公交车。
）4. 特殊结构除了以上常见的用法，动词不定式还可以有其他特殊的句型结构。
例如：- so + 形容词/副词 + as to 不定式：表示结果如此程度以至于无法想象。
- The story was so interesting as to keep me up all night.（这个故事非常有趣，以至于让我整晚都无法入睡。
）- enough + 不定式：表示足够做某事。
- She is old enough to drive a car.（她已经够大了，可以开车了。
）动词不定式作结果状语的用法灵活多样，根据具体的语境和句子结构来选择合适的使用方式。
动词不定式用法大全
动词不定式用法大全
1. 作为动词的宾语：I want to go (我想去)。
2. 作为动词的补语：He seems to know the answer (他似乎知道答案)。
3. 作为目的状语：He went to the store to buy some groceries (他去商店买些杂货)。
4. 作为原因状语：I stayed home to finish my homework (我呆在家里完成我的家庭作业)。
5. 作为结果状语：He ran fast to catch the bus (他跑得快以赶上公共汽车)。
6. 用于被动语态：I hope to be invited to the party (我希望被邀请参加晚会)。
7. 用于虚拟语气：If I were you, I would study harder (如果我是你，我会更加努力学习)。
8. 用于感叹句：What a wonderful place to visit! (真是一个美妙的地方可供参观)
此外，动词不定式还可以有时态和语态的变化，如：to be + 动词的不定式形式。
在句子中，动词不定式通常是以 "to" 作为引导词，但有时也可以省略 "to"，具体取决于动词或动词短语的前后关系。
需要注意的是，动词不定式一般不具有时态和人称的变化，常用的形式为：to + 动词原形。
总之，动词不定式在句子中具有多种用法，可以根据句子的结构和意义来确定具体的用法。
高中英语知识点归纳非谓语动词作状语
高中英语知识点归纳非谓语动词作状语非谓语动词作状语是高中英语的重要知识点之一。
非谓语动词包括不定式、动名词和分词，它们可以在句子中充当状语，用来修饰动词、形容词或副词，起到说明动作、表达原因、目的、结果、条件等作用。
下面是对非谓语动词作状语的归纳总结。
一、不定式作状语不定式作状语可以表示目的、结果、原因、条件等。
常见的结构有：1. 目的状语：She went to the supermarket to buy some vegetables.她去超市买蔬菜。
2. 结果状语：He studied hard to pass the exam.他努力学习以通过考试。
3. 原因状语：He hurried home to avoid the rain.他匆忙回家以避雨。
4. 条件状语：To solve the problem, we need to work together.为了解决这个问题，我们需要共同努力。
二、动名词作状语动名词作状语可以表示目的、结果、原因、时间、方式等。
常见的结构有：1. 目的状语：He practices playing the piano every day to improve his skills.他每天练习弹钢琴以提高技能。
2. 结果状语：She couldn't sleep, feeling worried about the exam.她无法入睡，对考试感到担忧。
3. 原因状语：They raised their voices, shouting for help.他们提高了声音，呼救。
4. 时间状语：Walking along the street, I saw an old friend of mine.走在街上的时候，我碰见了一个老朋友。
5. 方式状语：He solved the math problem by using a different method.他用不同的方法解决了这个数学问题。
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动词不定式做状语时表示目的和结果用法总结
1.作目的状语:
I came here to see you.
To stop the train, pull the lever downwards.
目的状语还可以用如下表达法：
肯定：
to
in order to + 动词原形
so as to
I come to see her. = I come in order to see her. = I come so as to see her.
that
so that + 主语+ may/might + 动词原形
in order that
I come that I may see her. = I come in order that I may see her. = I come so that I may see her.
否定：
not to
in order not to + 动词原形
so as not to
that
so that + 主语+ may/might + not + 动词原形
in order that
He went away not to see me.
= He went away in order not to see me.
= He went away so as not to see me.
= He went away in order that he might not see me.
= He went away that he might not see me.
= He went away so that he might not see me.
in order to, in order that和so as to, so that的区别
in order to可以用在句首或句末，但so as to只能用在句末。
如：
He got up very early in order to/so as to catch the first bus.
In order to catch the first bus, he got up very early.（此时不能用so as to）
so as to 和in order to的汉语意思应该是一样的“为的是，为了”。
它们的英语功能也是一样的，都可以用来引导目的状语。
它们的不同之处就在于so as to 不能用于句子的开头，在句子开头只能用in order to.
另外，
1.in order to 一般用in order that加从句来替换；而so as to 一般用so that加从句来替换。
in order that 可
以在句首，so that和so as to 一样不能在句首。
2.当这两个短语后的不定式动词的逻辑主语和句子的主语一致时，“in order to , so as to +不定式”可以简化
为“不定式”
In order to get to school on time, he got up earlier.这个句子可以表达为下列几种方式：
In order that he could get to school on time, he got up earlier.
He got up earlier in order to get to school on time.
He got up earlier in order that he could get to school on time.
He got up earlier so as to get to school on time.
He got up earlier so that he could get to school on time.
To get to school on time, he got up earlier. （这种不定式有时可以表示目的以外的状语）
注意：不定式本身有自己的主语时，可用“for…to”来表示。
如：
My father bought a new book for me to read.
2.作结果状语:
He hurried to the school to find nobody there.
What have I done to offend you?
结果状语还可以用如下表达法：
adj as to + 动词原形
so + + (表示正面的结果，解释为“如此...以至于”) adv that + 主语+ can/could + 动词原形
adj
= + enough to + 动词原形(表示正面的结果，解释为“如此...以至于”)
adv
He studied so hard as to pass the examination.
= He studied so hard that he could pass the examination.
= He studied hard enough to pass the examination
注意：enough与形容词或副词连用时，要置于形容词或副词之后。
The water is warm enough for us to swim.
I wish you’d write clearly enough for us to read it.
enough可置于名词前做修饰语，在正式语体中有时可以放在名词后。
Have you got enough room/room enough to seat all of us?
adj adj
too + + to …= so + + that + 主语+cannot + 动词原形
adv adv
adj
= not + + enough to + 动词原形(表示反面的结果，解释为“太...以至不能”)
adv
You are too young to learn to drive.
= You are so young that you can’t learn to drive.
= You are not old enough to learn to drive.
such as to ... 和such...as to及such that…和such…that…的区别
1. such 有两种词性：名词性的不定代词和形容词。
正是由于词性不同，所以在表示“如此...以致于” 这种
意思时就出现了两种不同的结构。
such as to ... 中的such 属于不定代词，指代上文提到过的人或事物，意思是“这样的人/如此的事物”，如：The case has been such as to prove true. 情况已经如此，以致于证明是真实的。
Their anxiety was such as for them not to be able to sleep. 他们如此焦虑，以致于难以入睡。
2. such ... as to ... 中的such 属于形容词，需要放在名词前作定语，意思是“这样的/如此的...”，如：
We are not such fools as to believe him. 我们不是那样的蠢人, 以致于能够相信他。
She had such a fright as to faint. 她如此吃惊以致于吓得昏了过去。
Such as to 和such...as to 中，如果把不定式加上主语改为结果状语从句，就变成了such that ... 和such ... that ...。
以下就是上面句子改写成的从句：
The case has been such that it can prove true. 情况已经如此，以致于（情况）证明是真实的。
Their anxiety was such that they could not sleep. 他们如此焦虑，以致于(他们)难以入睡。
We are not such fools that we can believe him. 我们不是那样的蠢人, 以致于(我们)能够相信他。
She had such a fright that she fainted. 她如此吃惊以致于（她）吓得昏了过去。
表示令人意外的结果用only + to find / discover / realize
He lifted a rock only to drop it on his own feet.
They queued for hours at the box office only to discover that the show was sold out.
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