句子是托福寫作最基本的元素，只有完成好每一個(gè)句子，托福作文高分才得以保證。下面就和出國(guó)留學(xué)網(wǎng)小編一起來看看托福寫作之五種常用句型。
1.表示原因
1） There are three reasons for this.
2） The reasons for this are as follows.
3） The reason for this is obvious.
4） The reason for this is not far to seek.
5） The reason for this is that...
例如：There are three reasons for the changes that have taken place in our life. Firstly， peoples living standard has been greatly improved. Secondly， most people are well paid， and they can afford what they need or like. Last but not least， more and more people prefer to enjoy modern life.
2.表示好處
1） It has the following advantages.
2） It does us a lot of good.
3） It benefits us quite a lot.
4） It is beneficial to us.
5） It is of great benefit to us.
例如：Books are like friends. They can help us know the world better， and they can open our minds and widen our horizons. Therefore， reading extensively is of great benefit to us.
3.表示壞處
1） It has more disadvantages than advantages.
2） It does us much harm.
3） It is harmfulto us.
例如：However， everything dividesinto two. Television can also be harmful to us. It can do harm to our health and make us lazy if we spend too much time watching television.
4.表示重要、必要、困難、方便、可能
1） It is important （necessary， difficult， convenient， possible） for sb. to do sth.
2） We think it necessary to do sth.
3） It plays an important role in our life.
例如：Computers are now being used everywhere， whether in the government， in schools or in business. Soon， computers will be found in every home， too. We have good reason to say that computers are playing an increasingly important role in our life and we have stepped into the Computer Age.
5.表示措施
1） We should take some effective measures.
2） We should try our best to overcome（conquer）the difficulties.
3） We should do our utmost in doing sth.
4） We should solve the problems that we are confronted（faced）with.
例如：The housing problem that we are confronted with is becoming more and more serious. Therefore， we must take some effective measures to solve it.
托福寫作時(shí)間較短，考生不可能有太多的時(shí)間去思考作文邏輯和句子結(jié)構(gòu)，所以，大家在加強(qiáng)英文基本功的同時(shí)，還應(yīng)當(dāng)積累一些托福寫作結(jié)構(gòu)模板和句子模板，在考場(chǎng)上進(jìn)行靈活的套用。