语法是考试写作文，做阅读题的好技巧，备考雅思阅读写作的过程中，需要掌握的语法知识很多，下面是小编给大家分享的相关内容，大家可以作为参考。
雅思语法从句一
在雅思写作中，一般的简单句会用一个形容词做定语来修饰一个名词，但当定语成分太过复杂而不能只用单个形容词担当时，就要借助于一个句子来做定语修饰名词。
像这样由句子担当定语，对被修饰的先行词进行有限定制约，使该词的含义更具体，更明确，我们称之为限定性定语从句，下面我们结合例句进行对比学习：
a)I don’t like lazy people(形容词做定语放在名词前面).
b)I don’t like the people who never keep their words. 我不喜欢从不遵守诺言的人.
在限定性定语从句中，有两个比较重要的概念。以b句为例,独立主句是：I don’t like the people;定语从句为“who neverkeep their words”，相当于一个形容词，做定语修饰名词“the people”， 且从句和主句是由who来连接的。在定语从句中，“thepeople”被称为先行词，指被定语从句所修饰或限制的对象。“who”被称为关系词即重复指代先行词，并在定语从句中充当一定成分的连词。
从上面的解析不难看出，关系词在限定性定语从句中很重要，是连接主句和从句的关键。关系词可以分为关系代词和关系副词，下面我们一起来进行具体的学习。
I.关系代词主要有：who, whom, whose, which, that.
A. 当先行词为人时，可用关系代词who,whom,whose 和that.
a. 若关系代词在从句中做主语时，选用 who 或that.
eg：The woman is a responsible teacher who /that is loved by herstudents.
= The woman is a responsible teacher and she is loved by her students.
b. 若关系代词在从句中做宾语时，选用 whom(***),who 或that.
eg: The girl whom we are talking about is a good friend of us.
c. 若关系代词在从句中做定语,表示人的所有关系时，选用 whose 或of whom.
Eg:I know a friend whose sister is a famous dancer.
= I know a friend. His sister is a famous dancer. (whose 代替了his,指人friend)
B.当先行词为物时，可用关系代词which, that 或whose.
a. 若关系代词在从句中做主语或宾语时，选用 which 或that.
Eg:These are the trees which / that are destroyed in the fire(做主语).
b. 若关系代词在从句中做定语,表示物的所有关系时，选用 whose 或of which.
Eg:The children saw an elephant whose legs were hurt badly.
综上所述，当先行词为人和物时，若在从句中做主语或是宾语，这时可用选用关系代词that，做定语时用whose.
II. 关系副词主要有：where,when 和why.
A. 当先行词为表示地点的名词时，定语从句由副词where引导.
In the sixth century BC, ancient Greece was a country where there were alot of new ideas.
B. 当先行词为表示时间的名词时，定语从句由副词when引导.
Plato lived at a time when philosophy was very fashionable.
C. 当先行词为表示原因的名词时，定语从句由副词why引导.
Can you tell me the reason why you lied to me?
需要注意的是，限制性定语从句不能被省略，否则句意就不完整，例如I met someone who said he knows you.
雅思语法从句二
表语从句是雅思写作中非常常用的另一种从句，可构成各种句型。
1 The first thing to be mentioned is that
2 Another point to be considere d is that
3 The last thing to be shown is that
4 The first advantage of (doing) something is that
5 Another advantage of (doing) something is that
6 The third advantage of (doing) something is that
7 The first disadvantage of (doing) something is that
8 Another disadvantage of (doing) something is that
9 The third disadvantage of (doing) something is that
10 The first possible reason is that
11 Another cause is that
12 The third element is that
13 The first measure to be taken is that
14 Another solution is that
15 The third step is that
16 That is why
17 Why…is that…
18 A hot topic discussed by people is whether
19 A is to B what C is to D
20 A is to B as C is to D
21 My view is that…
雅思语法从句三
需要备好各种从句：其中5.5分以上必备三大经典从句：定语从句、宾语从句、状语从句)
1. 定语从句：
多用who(指人)、which(指物)、that(即可指人也可以指物)，还有一个经典的容易被忽视的定语从句在大作文中可以表达事件发生的原因：即由why引导的固定句型...the reason(s) why...
E.g:There may be some reasons why entertainment stars earn high salaries but overall Iagree that they are overpaid.
2. 宾语从句：
文章中提出观点的好句型，无论是你自己的观点还是文章中原来给出的观点都可以。建议多用that引导的，不容易出错，如：some people think/agree/suggest/insist that...
E.g:A growing number of parents believe that being overly dependent on social networkingwebsites only makes their children more isolated in the real world.
3.状语从句：
状语的种类特别多，所以状语从句是你最能够表现句型多样化的机会。牢记以下几种状从的分类，句子的丰富性自然就出来了：
A.时间状语从句(引导词：when/as/while/since/the moment...)
E.g:The related sectors should take effective measures the moment the problem appeared.
B.地点状语从句(引导词：where/wherever)
E.g:Generally，air will be heavily polluted where there are factories.
C.原因状语从句(引导词：because/since/as/seeing that...)
E.g:As this policy would also affect the cost of public transport, it would be very unpopularwith everyone who needs to travel on the roads.
D.条件状语从句(引导词：if/as long as/providing that/provided that...)
E.g:The government will increase its support for public education, provided that such funds canbe put to good use.
E.让步状语从句(就是转折关系，引导词：though/although/while/no matterwho/where/which/how...)
E.g:*While (表示二者对比)some people link happiness to wealth and material success, othersthink it lies in emotions and loving personal relationships. *Even though it is unlikely that all workers do feel happy in their work, I think it is notunrealistic to promote more job satisfaction in any job.
雅思语法从句四
形式主语从句是雅思写作中非常常用的一种句型。我们先来看一下它是如何构成的。(That + 一个完整的句子可做主语)。比如说：(That education is important) is clear.这就是主语从句的基本形式。但如果句子要是这样，主语过长。所以，我们习惯于用it来代替原来的主语。而把原来的主语放在句子的最后。这句话可改为：It is clear that education is important.这就叫做形式主语从句。
以下的形式主语从句句型在雅思写作中都常常用到。希望大家能认真掌握，灵活使用。
1 It is often the case that
2 It’s a fact that
3 It seems that
4 It’s said that
5 It’s reported that
6 It’s believed that
7 It’s universally accepted that
8 It’s announced that
9 It’s estimated that
10 It must be admitted that
11 It’s obvious that
12 It must be stressed out that
13 It is widely-accepted that
14 It cannot be denied that
15 It can be foreseen that
16 It’s as clear as crystal that
17 It goes without saying that
18 It is acknowledged that
19 It is well-known that
20 It is estimated that
以上就是雅思必备的语法知识，希望可以给大家学习带来帮助。
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