主语多样：
1.她突然想到了一个主意。
She suddenly had an idea.
通常情况下，考生会马上对这句话进行翻译，基本不会动句子结构。但是以人作为主语的英语句子总是不能够很吸引人，所以这个句子如果稍微做下修改，以后面的宾语“主意”做主语，这个句子会发生一些变化。
An idea suddenly occurred to her.
2.他开车心不在焉，几乎闯祸。
He was absent-minded when driving, and almost caused an accident.
这句话依然是拿人做主语，稍微改一下，把心不在焉这个形容词的名词形式做主语，会大不相同。
His absence of mind during driving nearly caused an accident.
3.美利坚合众国创立于1789年。
The United States of America was founded in 1789.
这句话没有任何错误，但是不够多样，可以用时间作主语。
The year 1789 witnessed the founding of the United States of America.
III 实用句型
在文章的最后，新东方托福考试网为大家列举几个新托福考试中可以使用的套用句型，为一些写句子摸不着头绪的考生提供帮助。
1.It pays to make great efforts to prepare for TOEFL-ibt.
努力准备新托福考试是值得的。
2.Nothing is more important than to receive education.
没有比接受教育更重要的了。
3.The reason why the white-collars suffer increasing work-related stress is that they pursue work achievement in career.
白领压力日益增加的原因是他们在事业上有所追求。
4.It is time the related department took proper measures.
(虚拟句式)相关部门早该采取适当的措施了。
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