托福写作改写技巧：使用不同的句型
a. 改变词序。这是非常简单的一种方法，完全不用动脑筋就可以进行改写。常常将句子中的状语(包括状语从句)换位置。
Eg: For many years, people have believed ….
→People believed… for many years.
After this program
has been solved, work on … can continue.
b. 主动语态和被动语态的互相替换
Eg: Trained scientists performed this research.
→This research was performed by trained scientists.
c. 使用“there be” 句型，可以将一个简单句，马上变成一个加入定语从句或者分词的复杂句。
Eg: Several computer programs can be used to solve this problem.
→There are several computer programs that can be used to solve this problem.
或There are several computer programs used to solve this problem.
d. 定语从句，分词和插入语的互相替换
Eg: Study…, conducted
by sociologists in 2004, shows that…
→Study…, which was conducted by sociologists in 2004, shows that…
Eg: This…, which is one of the most powerful … in the world, has…
→This…, one of the most powerful… in the world, has…
以上就是托福写作使用不同句式的改写技巧，希望能为大家提供一些参考帮助。