定语从句综述：
在雅思写作这种半书面英语中，定语从句既可以修饰一个名词或部分代词，也可以修饰其前面整句话(这个时候定语从句谓语从句必须是单数哦，而且引导词必须是“，which”)。
比如：Anything which encourages language learning benefits society culturally and economically. 任何鼓励外语学习的事情有利于社会的文化和经济发展。这句话中的which 修饰不定代词anything。
再如：children spend much time watching TV,which gives rises to many health problems like obesity and poor eyesight.小孩花大量时间看电视，这样会引起很多健康问题，比如肥胖症以及视力下降。这里的which就在修饰其面整句话(children spend much time watching TV.)
改造定语从句的3大方法：
但是这样的句子在大部分的学员作文中出现的比较多，那怎么样让屌丝定语从句逆袭呢。其实有多种方法，今天我们先介绍大家容易掌握的3个方法。
1：如果定语从句修饰名词，而且定语从句的谓语动词是be动词，也就是N 关系代词BE 形式，这个时候我们可以把关系代词+be动词省略
比如：
A vast majority of people who are invited to the party are well-known scientists.
我们就可以把who are省略，改为：A vast majority of people invited to the party are well-known scientists.
这样我们就把原来普通的'定语从句做定语改为了过去分词(非谓语结构的一种)做定语，而分词在书面英语中是一种常用而且比较书面的语法结构，所以建议想考6分以上的烤鸭们多多使用。
Employees who are from rural areas will confronted with many problems in major cities.(定语从句做定语)
Employees from rural areas will confronted with many problems in major cities.(介词短语做定语)
The number of students who cannot attend university is decreasing.
The number of students who are unable to have access to tertiary education is decreasing.
The number of students unable to have access to tertiary education is decreasing.(形容词短语做后置定语)
再比如：
Television which has been as one of the most fascinating inventions in the 20th century is now penetrating into every family.
Television, one of the most fascinating inventions in the 20th century, is now penetrating into every family.(同位语)
所以当作文中有多出类似的定语从句时，我们可以省略关系代词be动词或者把实意动词转化为be动词之后再省略，这样作文中就可以出现其他语法结构做定语，例如非谓语结构，介词短语，形容词短语，或同位语，而不单单是定语从句。那这样句型是不是就多样化了呢?
2：如果出现“名词关系代词实意动词”，这个时候我们可以替换为：n doing sth 形式。
比如：
Education, which helps children develop their thinking and accumulate their knowledge , is a deciding factor of one's success.
Education,helping children develop their thinking and accumulate their knowledge , is a deciding factor of one's success.
We told them they were the victims who deserved sympathy the most.
We told them they were the victims deserving sympathy the most
3:如果作文中出现了“，which”修饰其前面整句话的时候怎么改呢?
A-非谓语结构做状语: SVO, (thus)doing sth
B-概括性同位语: SVO，a/an 概括性名词that SVO
比如刚才提到的例句：
children spend much time watching TV,which gives rises to many health problems like obesity and poor eyesight.
children spend much time watching TV, giving rises to many health problems like obesity and poor eyesight.
children spend much time watching TV,a bad habit that gives rises to many health problems like obesity and poor eyesight.
二、一般上说，形容词的位置是紧贴在被修饰的名词前面；不然的话，就跟在接系动词（linking verb）后面充当补足语（complement）。例如：
① Sam is an industrious professional designer.
② What is it that bulky box? May I know?
③ Homeless cats are seen wandering about the field.
④ David looks cheerful everyday.
⑤ Janet is being nasty today.
⑥ The sky suddenly turned dark.
①-③里的形容词修饰它们后头的名词；④-⑥里的形容词是补足语。
三、形容词作定语一般要放在名词前面，但当形容词修饰不定代词something，nothing，anything时要放在所修饰的不定代词之后。如：something important，nothing serious。
当形容词带有表示度量的词或词组作定语或表语时，定语或表语要后置。如：
We have dug a hole two meters deep.
The hole is about two metres deep.
四、单个形容词：
单个形容词修饰名词时，一般要放在名词前。前面常常带有冠词、形容词性物主代词、指示代词、数词等。a clever boy 一个聪明的男孩 my own book 我自己的书
五、形容词词组：
词组或形容词后面有介词短语或不定式短语等补足成分时，形容词必须置于名词后。
It is a problem difficult to work out。这是一道难以解决的问题。
He is a boy deserving of sympathy。 他是个值得同情的男孩。
一、形容词：用来说明或修饰名词、代词的词称为形容词。
1、形容词的句法作用：作句子中名词的定语、句子的表语以及宾语补足语。
2、形容词在句子中的位置：
1)、在句子中的位置以及作用
⑴作定语时放在名词的前面,且音节少的词放在音节多的词之前。如：a big yellow wooden wheel(一个黄色的大木轮)
⑵作表语时放在连系动词之后。如：The price sounds reasonable.(这个价格听起来算是合理)
⑶作宾语补足语时放在宾语之后。如：We must try our best to keep our environment clean.(我们必须尽力保持我们的环境清洁)
⑷后置的情况：
①修饰复合不定代词时放在代词之后。如：Something serious has happened to him.(他发生了严重的事故)
②与表示“长、宽、高、重、老、远离”的词连用时形容词后置。如：He’s 1.8 metres tall.(他身高1.8米。)The moon is about 380,000 kilometres away from the earth.(月球离地38万公里)
2) 、多个形容词修饰同一个名词的顺序：
二、副词
1、副词：用来说明事情发生的时间、地点、原因、方式等含义或说明其它形容词或副词程度的词叫做副词。
2、副词的分类（见下表）：
3、副词在句子中的位置以及作用：
（1）作状语
1.时间副词：一般放在句首或句尾,注意,early、late、before、later、yet等一般放在句尾,already、just一般放在动词的前面。如：We will visit the Great Wall tomorrow.(我们明天要去参观长城) / They have already been to the UK twice.(他们去过英王国两次) / Soon the lost boy found his way back home.(不久迷路的孩子找到了回家的路)
2.地点副词：一般放在句尾,但here、there还可放在句首。如：There you can see thousands of bikes running in all directions(方向).(在那里,你可以看到成千上万的自行车朝各个方向流动) / The frightened wolf ran away.(受到惊吓的狼逃开了)/ He walked out quietly and turned back soon.(他悄悄地走了出去,很快又返回)
3.方式副词：一般放在行为动之后,suddenly可以放在句首、句尾或动词之前。如：Old people can hardly walk as quickly as young people.(老年人几乎不可能走得和年轻人一样快) / Suddenly he saw a light in the dark cave(山洞).(突然,在黑黢黢的山洞里,他看见了一丝亮光)
4.程度副词：修饰动词时,放在动词之前；修饰形容词或副词时,放在形容词或副词之前。但注意,enough总是放在被修饰的形容词或动词的后面；only位置比较灵活,总是放在被修饰的词的前面。如：I nearly forgot all about it if he did not tell me again.(如果他不再次告诉我,我几乎把那事全忘了) / It was so strange that I could hardly believe my ears.(它那么奇怪一直我都不能相信我的耳朵) / She got to the station early enough to catch the first bus.(她早早地赶到车站赶上了首班车)
5.频度副词：一般放在be动词之后或者助动词与主要动词之间,但sometimes、often等还可以放在句首或句尾,usually可放在句首,once可放在句尾,twice、three times等一般放在句尾。如：Sometimes I get up early.(我有时起得早)/ The workers usually have lunch at the factory.(工人们通常在厂里吃午饭) / Take this medicine twice a day.(这种药一天吃两次)
6.疑问副词：用于对句子的状语进行提问,位置总是在句首。如：When and where were you born?(你何时何地出生？)/ Why did little Edison sit on some eggs?(小爱迪生为什么要坐在鸡蛋上？)/ How do you do?(你好！)
7.连接副词：用来引导主语从句、宾语从句和表语从句,在从句中作状语。How I am going to kill the cat is still a question.(我打算怎样杀死那只猫还是个问题)/ That is why everyone is afraid of the tiger.(那就是人人都害怕老虎的原因) / He wondered how he could do it the next day.(他不知道第二天怎样做那事)
8.关系副词：用来引导定语从句,在从句中作状语。如：This is the place where Mr Zhang once lived.(这就是张先生曾经住过的地方)/ Please tell me the way how you have learned English so well.(请告诉我你的英语是怎样学得这么好的方法)
9.其它副词：too“也”,用在句尾；also放在动词前；either “也不”,放在句尾；nor“也不”,放在句首；so“如此,这样”,放在形容词、副词前；on/off“开/关”放在动词之后；not放在be之后、助动词之后、不定式或动名词之前；maybe/perhaps放在句首；certainly放在句首或动词之前。如：He went to the Palace Museum and I went there,too.(他去了故宫博物院,我也去了) / Maybe your ticket is in your inside pocket.(也许你的票就在你的里边衣袋里) / --Tom doesn’t have a computer. –Nor do I.(汤姆没有计算机,我也没有。)
(2)作表语：
地点副词一般可以作表语,放在be等连系动词之后,说明人物所处的位置。如：I’m very sorry he isn’t in at the moment.(很抱歉,他此刻不在家)/ I have been away from my hometown for nearly 20 years.(我离开家乡有将近20年了) / Jim is over there.(吉姆就在那边)
(3)作定语：
时间副词(如now、then)以及许多地点副词都可以作名词的定语,放在名词的后面。如：People now often have their festival dinners at restaurants.(现在的人们经常在餐馆里吃节日晚宴) / Women there were living a terrible life in the 1920s.(在二十世纪20年代那儿的女人过着可怕的日子)
(4)作宾语补足语：
地点副词一般可以作宾语补足语。如：Put your dirty socks away, Jim! They are giving out bad smell!(吉姆,把你的脏袜子拿开！它们在散发着臭气。) / Father kept him in and doing his lessons.(父亲把他关在家里做作业)
[注意] “动词+副词”的宾语如果是代词,则该副词应该放在代词之后。如：He wrote down the word.(他写下了那个词。)→He wrote it down.(他把它写了下来。)
==形容词变副词的规律
a.一般的形容词在结尾加ly变为副词。例如：careful-carefully
b.以元音加e结尾的单词要去e在加ly。例如：true-truly
c.辅音加y结尾的单词去y变i在加ly。例如：angry-angrily
d.单音节y结尾直接加ly。例如：shy-shyly
e.以le结尾的单词直接将e变为y。例如：terrible-terribly
f.形容词、副词同形：hard, fast, friendly, late, early, lovely, long。这部分请同学们注意，其中很多单词加ly之后就变成其他意思的单词了。例如：hardly就变成“几乎不”的意思，是小学阶段五大隐形否定词（few，little, never, seldom, hardly）之一。
三、形容词副词的原级、比较级和最高级
1、分类：形容词和副词有原级、比较级和最高级三级。
原级变为比较级和最高级有规则变化和不规则变化两种。
2、规则变化:
(1)单音节和部分双音节形容词和副词,在原级的后面加上er,est构成比较级和最高级。
a)直接加er,est：
b)以重读闭音节结尾的,要双写最后一个辅音字母,后加er,est：
c)以辅音字母+y结尾的,先把y改为i再加上er,est：
(2)两个音节或两个以上的音节的,在原级前加more/most.
3、不规则变化:
4、形容词和副词的原级、比较级和最高级的用法：
(1)讲述某人/物自身的情况时,用原级。基本句型是：
主语(sb./sth) + 谓语动词 + (very/too/so/quite/rather…) + 形容词/副词原级 +….
如：He is very old now.(他现在很老了) / They ran quite fast.(它们跑得相当快) / The weather looks rather bad.(天气看上去相当糟) / I am so happy!(我是如此的快乐)
☆表示两者之间没有差别时,使用句型：
主语(第一个人物) + 谓语动词 + as + 形容词/副词原级 + as + 第二个人物 +….
如：He is as excited as his younger sister.(他和他妹妹一样兴奋)/ Lily rode her bike as slowly as an old lady.(莉莉骑车像老太太一样慢)/ They picked as many apples as the farmers (did).(他们摘的苹果和农民一样多)
☆表示第一个人比不上第二个人时,使用句型：主语(第一个人物) + 谓语动词(否定式) + as / so + 形容词/副词原级 + as + 第二个人物+….
如：He is not so / as excited as his younger sister.(他没他妹妹那么兴奋) / Lily did not ride her bike so / as slowly as an old lady. (莉莉骑车不像老太太那样慢) / They didn’t pick so / as many apples as the farmers (did). (他们摘的苹果不如农民多)
(2) 讲述两者有差异,第一个人物超过第二个人物时,用比较级。基本句型：
主语(‘A’)+谓语动词+(much/a little/even/still)+形容词/副词比较级+than+第二个人物(‘B’)+….
如：A modern train is much faster than a car.(现代的火车比轿车快多了) / This book didn’t cost me more than that one.(这本书花费我的钱不比那本多)
讲述两者有差异,第一个人物不及第二个人物时,用比较级。句型是：
主语(‘A’) + 谓语动词 + less+ (多音节形/副)比较级 + than + 第二个人物(‘B’) +….
如：I think English is less difficult than maths.(我认为英语不比数学难)/ Do you think it less important to learn a foreign language?(你认为学外语不那么重要吗？)
(3)讲述某人/物是一群之中最突出的一个时,用最高级。句型是：
主语(sb./sth) + 谓语动词 +(the) +形容词/副词最高级 +in / of ….
如：The Changjiang River is the longest in China.(长江是中国最长的河流) / He jumped (the) highest of the three (boys).(三个男生中他跳得最高)
5、关于比较等级的重要注释：
1、如果动词是及物或不及物动词,则后面用副词；如果后面是连系动词,则后面用形容词。如：This car is the fastest of the four.(形容词)(这辆汽车是四辆之中最快的)/ This car runs (the) fastest of the four.(副词)(这辆汽车是四辆之中跑得最快的)
2、“比较级+and+比较级”表示“越来越……”。如：The weather is getting warmer and warmer.(天越来越温暖了)
3、“the+比较级…,the+比较级…”表示“越…就越…”。如：The more trees we plant,the better it will be.(我们栽的树越多,情况就会越好)/ The harder you try,the greater your progress is.(你越是努力,进步就越大)
4、一般的形容词或副词的比较级前面可以加much/a little/even/still,而表示数量的more之前还可以加some/ any/ no/ one/ two/ many/ several/ a lot等词。如：It is much colder today than yesterday.(今天比昨天冷多了)/ Would you like some more coffee?(你还要些咖啡吗？)/He did not eat any more.(他没有再吃)
5、more than / less than分别可以理解为“多于/少于”,相当于副词,more than=over; less than=under.如：I lived in New York for more than four months.(我在纽约生活了四个多月)
6、“one of the +最高级+名词(复数)”整个短语为单数含义,谓语要用单数形式。如：One of the oldest houses has been burnt in a fire.(最古老的一幢房子在一场大火中被烧毁了)
7、“Which / Who+动词+形/副,□,□or□?”句型中,如果有两个选项,形/副用比较级,如果有三个选项,形/副用最高级。如：Who has more books, Lin Tao or Han Mei?(林涛和韩梅谁的书最多？)/ Which is the heaviest,a pig,a horse or an elephant?(猪、马、象哪个最重？)
8、上下文中含有both/either/neither/two/twins等表示两个事物的词时,用比较级,而且往往还要加the；含有all/none/no one/ every 等表示三个或三个以上事物时,用最高级。如： --Do you like the smaller one?—Neither.(小一点的那个你喜欢吗？一个都不喜欢)/ --Which do you like best? –All of them!(你最喜欢哪个？全部。)
