句型是托福写作考试中的重要考点，考生在平时的阅读中要做好整理和积累，可以参考一些比较好的托福写作范文，针对一些托福常用作文句型进行整理。一起来看一下小编为大家整理的写作句型吧！
托福写作常用句型分析
定语从句
最常用的一种句型之一。适当地运用定语从句可以给你的文章增色不少。例如，下面的这两个句子用上定语从句马上就变成了一个漂亮的复杂句。Bad books contain evil thoughts. In them, there might be much description about violence, superstition, and sex.改变后：Bad books, in which there might be much description about violence, superstition, and sex, contain evil thoughts.
强调句
It is + 被强调的内容 + thatEg: It is cars and factories that release a great deal of gases, polluting the environment.汽车和工厂排放大量的废气，使得环境被污染
倒装句
Eg: Only if the government will take some appropriate measures, will this intractable problem be tackled.只有政府采取适当的措施，这个棘手的问题才能被解决。
被动语态
Eg: Every means should be tried to protect the environment on which people live.人们应竭尽全力来保护我们赖以生存的环境。
分词结构
包括现在分词和过去分词。Eg: Tourism, which is a rising industry, has become the major source of economy, playing crucial role in many Asian countries.旅游业是一个新兴的行业，它成为经济的主要在很多东南亚国家起着尤为重要的作用。
插入语
一种独立成分，与句子的其它成分一般没有语法上的关系。大都是对一句话作一些附加说明或解释。它通常由一个词、一个短语或一个句子构成位置较为灵活，可置于句首、句中或句末，一般用逗号或破折号与句子隔开。Eg: Computer, an indispensable part in our life, has brought us great conveniences.电脑，我们生活中必不可少的一部分，给我们带来了极大的方便。
托福作文必背句型
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.
表示好处
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.
表示坏处
1)It has more disadvantages than advantages.
2)It does us much harm.
3)It is harmfulto us.
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...
托福写作经典高分句型
比较句
1).Studies show that juvenile delinquency rates are twice as high foryoungsters from single-parent families as for those intraditional households. (同级比较)
研究表明来自单亲家庭的青少年犯罪率是来自传统家庭的两倍。
2).Generally speaking, people in modern times enjoy less leisure timethan they did previously. (比较级)
一般说来，现代人比过去享有更少的休闲时间。
3).Compared with those with different abilities, children with intelligencedo more well in their school work and intelligence tests.
与不同能力的孩子相比，聪明的孩子在学业和智力测验方面表现更加突出。
4).Contrary to pop stars, other professionals like doctors and teacherscreate the true value for their society.
与明星不同，其他专业人员如医生和教师为社会创造了真正的价值。
5).Air is to human what (as) water is to fish.
空气对人类就如同水对鱼一样
It 引导的句子
1).It is hard to imagine what our life would look like withoutcomputers in modern society.
很难想象如果现代社会没有了计算机，我们的生活会变成什么样子。
2).It is conceivable that being physically active does good to health.
可想而知，积极参加体育活动有利于身体健康。
3).It is a highly controversial issue whether women should join thearmed forces or not.
女性是否应该参军是一个非常有争议的问题。
4).It is universally acknowledged that water and air are indispensableto human beings.
人们普遍认为，水和空气对人类不可缺少。
5).It is essential that endangered species of animals be protected againstbeing killed.
保护濒危的动物物种免遭残杀是必需的。
6).It is high time that the government took effective measures toresolve these problems.
该是政府采取有效措施来解决这些问题的时候了
7).It has been made easier for modern people to communicate with eachother by the internet in a few seconds.
现代人很容易通过互联网在几秒钟内就取得联系。
8).It is worth caring about the way a child behaves.
关心孩子们的行为方式是值得的。
9).It has been a few decades since the computer came into being.
自从计算机问世以来已经有几十年的时间了。
