托福写作用词怎么用才地道？

     　有人戏说道，老外眼中句子分为3个档次，最差的是主动句，较好的是被动句，倒装句等，的nominalization(名词化)的句子，这样的句子最学术最适合写论文。那么面对这样的差异，我们需要重新审视我们写作中的思维方式，做到如何恰到好处又不“画蛇添足”。

　　简单说，名词化即是动词或形容词被用作名词的现象。比如动词转成名词：discovery->discovery，  move->movement， refuse->refusal，又比如形容词转成名词：careless->carelessness，  difficult->difficulty， intense->intensity。那么什么情况下，我们需要进行名词化呢?

　　A 谓语动词的宾语部分

　　原句：I do not know either what she meant or what he intends.

　　名词化：I do not know either her meaning or his intentions.

　　B 结合被动形式

　　原句：If people decide without enough persuasive information，...

　　名词化：If a decision is made without enough persuasive information，...

　　C 取代诸如从句中“the fact that”的用法

　　原句：The fact that I denied what he accused me of impressed the jury.

　　名词化：My denial of his accusations impressed the jury.

　　更好的名词化：a. When I denied his accusations， I impressed the jury.

　　b. In denying his accusations， I impressed the jury.

　　D 名词化部分用在there is/are的后面

　　原句：We demand that the government stop taxing entertainment.

　　名词化：There is a demand for an end to taxation on entertainment.

　　原句：The floods considerably eroded the land.

　　名词化：There was considerable erosion of the land from the floods.

　　然而，有些时候，在我们的新托福写作备考中认为理所应当使用“名词化”时，老外认为是没有必要的。比如：

　　A 名词化部分跟在动词后面

　　原句(名词化“冗余”)：The police conducted an investigation into the matter.

　　改后：The police investigated the matter.

　　B 名词化部分作为主语

　　原句：Our discussion is concerned with a tax cut.

　　改后：We discussed a tax cut.

　　C 连续进行名词化

　　原句：a. First， she reviewed the evolution of the dorsal fin.

　　b. There was a first a review of the evolution of the dorsal fin.

　　改后：First， she reviewed how the dorsal fin evolved.

　　D 连接部分名词化

　　原句：Their cessation of hostilities was because of their personnel  losses.

　　改后：They ceased hostilities because they lost personnel.

　　原句：The instability of the motor housing did not preclude the completion of  the field trials.

　　改后：Even though the motor housing was unstable， the research staff completed  the field trials.

　　以上这些新托福写作备考中中国学生很常见的名词化缺失或名词化滥用的例子。