世界本该是五彩缤纷的，我们应该在写作中尽量做到句子形式多样，灵活多变。这就要求我们在文章中多使用几种句型：简单句，复合句，定从，名从，强调句，倒装句，感叹句，虚拟句，非谓语结构，介短结构。要做到句式多变，可以从以下几点着手：1）组合(并列)
很多考生多次参加雅思考试，却写作从未超过6分，究其原因时，我们往往会发现其低分的罪魁祸首是词汇匮乏句型简单（当然语法也是必不可少的）。为避免整篇文章都是简单句的现象，建议各位采用组合法来增加句子的“档次”。此法很简单，只要把两个以上意思关联或者同向的句子用连接词拼起来就可以啦。例Internet offers a lot of knowledge. Internet also provides us with a lot of entertainment.→Internet provides us with not only knowledge but also entertainment.The food is delicious. It is also cheap. →Not only the food is delicious, but also it is cheap.或The food is both delicious and cheap.
其它的关联词可以用：besides, furthermore, likewise, moreover2)转折
两句话在含义上有抵触或相悖时，就应该想到用转折词把它们连接起来。例The house is quite old. It is comfortable to live in it. →The house is quite old, yet it is comfortable to live in it.
如果你的语法功底强些，不妨试试让步句型，把此句写成Despite the fact that the house is quite old, yet it is comfortable to live in it.或Although the house is quite old, it is comfortable to live in it.更多可用的词语：still, however, nevertheless, in spite of, despite, notwithstanding(纵使，尽管，然而)3)因果
如果前后句在含义上有因果关系，比如说前句事件导致后句的结果，这时就需用因果衔接词把两句变成一句，从而使句子的逻辑性更强。
He was exhausted last night. He went to bed very early. →He was exhausted last night, so he went to bed very early.
当然，如果写成非谓语结构，其档次又上了一层：(也可加Feeling)Exhausted last night, he went to bed very early.更多词语：then ,therefore, consequently, accordingly, hence, as a result of ,for this reason, so that4)名从
名词性从句是英语写作中较高等的句型，适用于语法程度较好的考生。不过，高等并不等于高不可攀。以下几种简单名从还是容易搞定的。学一学吧，为自己的文章增点色彩。
I can do this. → This is what I can do.We are not sure whether he can succeed in business. →It is not sure whether he can succeed in the business.(whether引导的名从充当真实主语)Many people think that it is necessary to ban smoking in public places. →It is thought that it is necessary to ban smoking in public places.(that引导的从句充当真实主语)如果考虑到用词，此句还可以升级为It is held/maintained that it is of tremendous significance to ban smoking in public places.

同样，主语，表语，宾语也可以改成以下形式：
When to go, where to go ,why he says so, what to do next, whether he will come

5）牵挂（定从）
所谓牵挂就是牵扯与粘连，就是把一些零碎的东西挂在主要的物件上。从语法角度上说，就是使用定语从句对某个词进行修饰。定语从句是英文写作中必不可少的句型，希望大家一定要学会如何使用。
You met the man yesterday. He is a friend of mine. →The man whom you met yesterday is a friend of mine.
We must attach importance to education. Education plays a key role in national development. →We must attach importance to education which/that plays a key role in national development.

6）排比
文学作品中最吸引人的地方莫过于此，如果非要让你的文章更加精彩的话，那么希望你尝试使用一个个排比句，一个个对偶句，一个个不定式，一个个的词，一个个的短语，以成排山倒海之势！

Whether your tastes are modern or traditional, sophisticated or simple, there is plenty of information on the Internet for you.
Nowadays, energy can be obtained through sources such as oil, coal, natural gas, solar heat, the wind and the ocean tides.
We have got to study, to enlarge our scope of knowledge, to realize our potentials and to pay for our life.

7）强调
在写作中如果想表达很重的语气时，不要老用very 来形容，建议你试试强调句。最简单的强调句有两种。如下：
Internet has brought tremendous changes to our life. →It is Internet that has brought tremendous changes to our life.(It is + 强调部分 + that 从句)
This opinion sounds very reasonable. →This opinion does sound reasonable.（助动词do/does/did + 动词原形）

8）挑战极限
冒险是要付出代价的，但成功的冒险也会带来丰厚的回报的。英语中虚拟句、倒装句、独立主格及非谓语结构可以说是某些人的极限，写这样的句子的确是一种冒险。听起来可怕，其实没你想象的那么难。多琢磨一下，多抄写此类句子，你总能学个一招半式的。
The weather being fine, a large number of people went to climb the Western Hills.
Africa is the second largest continent, its size being about three times that of China.
If I had got the news yesterday, I would have come to help you.
Had they taken measures earlier, our environment will be better now.

9）长短结合
凡事讲求有张有弛，写文章也是如此。老让读者读长句，不把人闷死，就把人累死！在长句中时常穿插短小精悍的句子，会给人耳目一新的感觉。有时把短句放在段首或段尾，也可以揭示主题：
As a creature, I eat; as a man , I read. Although one action is to meet the primary need of my body and the other is to satisfy the intellectual need of my mind, they are in a way quite similar.