改错到底有多难?从本质上说,改错就是考查考生最基本的语法,词汇(包括固定短语搭配)掌握情况,难度应该是适中的,因此同学们一定得加强基本功的训练.但到现在这个阶段,“加强基本功”实在是不怎么现实,如何迅速提高同学们六级改错的正确率才是摆在眼前的首要问题.我通过对2004年1月至2007年6月全部改错题目的仔细分析,发现其命题有着很强的规律性,一些考点更是屡考不爽,这就为同学们最后阶段迅速提高改错成绩提供了可能.笔者想通过本文来揭示六级改错题的一些命题规律,总结“7大核心考点”,以期对同学们最后的冲刺复习有所帮助：

这主要是指由and或or连接的几个并列成分在形式上必须保持一致.这一考点在历年六级改错中出现频率相当高,同学们要给予相当的重视.

(1) At the heart of the NEA survey is the belief in(改成that,同位语从句)our democratic system depends on leaders who can think critically, analyze texts and writing clearly.(07年1月新六级改错第6题)这里的writing显然与think和analyze并列,因此应该用同样的形式,所以应该改成write.

(2) Their experiments have shown that reading disorders are most likely the result of what is, in an effect(去掉an,固定介词搭配)，faulty wiring in the brain-----not lazy, stupidity or a poor home environment .( 06年6月六级改错第4题)这里的lazy应该与stupidity和a poor home environment并列,因此该用名词形式laziness.

(3) Restrict yourself to one or two pages, and listing any publications or referees on a separate sheet.(06年1月六级改错第7题)通过and将restrict和listing联系起来表示并列关系,所以listing应该用原形list.

(4) How do you know how to act in a classroom, or a department store, or toward a person who smiles or laugh at you?(04年6月六级改错第9题)

这里的smiles和laugh肯定应该用同样的形式,而前面的a person又提示我们该使用第三人称单数,所以将laugh改成laughs.

(5)Most experts believe this can continue even as if(去掉as,这里的even if表示即使)the population doubles by the mid-21st century, although feeding 10 billion people will not be easy for politics, economic and environmental reasons.(04年1月六级改错第6题)同样,这里的politics应该改成political和 economic, environmental并列。

（6）Elsewhere, rice experts in the Philippines are producing a plant with few stems and more seeds.

(04年1月六级改错第9题)few应该与more形成对应,所以应改成比较级形式fewer.

所谓A--A型错误,就是指六级改错命题经常将形容词(adjective)与副词(adverb)混淆.这时我们的任务就是将文中的形容词换成它的副词形式,或将副词换成形容词：

(1)Science should not only be“fun”in the same way as playing a video game, but “hard fun”----a deep feeling of connection made possibly only by imaginative engagement.(07年1月老六级改错第10题)我们都知道make sth possible, possible做为宾语补足语，那用被动语态就是sth be made possible,所以这里的possibly应该改成possible.

(2)Mass literacy is a relative new social goal.(06年6月六级改错第九题)显然这里表示“相对地”意思,因此要将relative改成它的副词形式relatively.注意:relative改成relatively不是第一次出现了，在04年1月的改错题中也出现过。

(3)A good CV is your passport to an interview and, ultimate, to the job you want.(06年1月六级改错第二题) ultimate在两个逗号之间，肯定得用副词形式ultimately.

(4)She says efforts are continuing to complete end the disease.(05年1月六级改错第三题)complete要改成副词形式completely修饰动词end。

(5)The WHO has given multi-drug therapy to patients freely for the last five years.(05年1月六级改错第九题)可以看出这里freely想表示“免费的”意思,所以应该改成形容词形式free.

(5)Culture is essentially to our humanness.(04年6月六级改错第8题)be essential to是一个固定搭配,表示“对... 很重要”,所以essentially应该换成形容词essential.

(6)Except for relative-isolated trouble spots like present-day Somalia…(04年1月第三题)显然应该用副词relatively来修饰动词过去分词isolated,表示“相对隔绝的”。

注意:A--A题错误有一种变体题型A—N.所谓A—N题型,

就是指A(adjective)与N(noun)之间的混淆,举例如下：

(1)Now what started in schools across the country is playing itself out on a nation stage and is possibly having an impact on the reading habits of the American public.(07年1月新六级第十题)“在国内舞台”应该是on a national stage,在这里名词nation要改成它的形容词形式national。

(2)Understanding the original of the negative attitudes towards science may help us to modify them.

(07年1月老六级第四题)表示“起源”显然要用名词形式 origin,这里用形容词original是错误的。

　　这种错误一般得根据上下文判断得出，分析这么多年六级改错的逻辑错误，答案无一例外都是将文中某个用错的词(很多情况下是一个形容词)改成它的反义词或添上一个否定词，这里要求同学们掌握一些常用的否定词缀，如in-、un-等等，因为有的形容词加上否定词缀就变成了它的反义词,举例如下：

(1)the leaders of our country are unconsciously sending the message that reading may be connected to desirable activities that…(07年1月新六级改错第七题)desirable>undesirable

(2)The task of learning facts and concepts, one at a time, makes learning laborious, boring and efficient.

(07年1月老六级改错第八题)efficient> inefficient.本题中efficient和laborious与boring并列,根据并列成分意思一致原则,也可以推断出这里的efficient应该换成它的反义词.

(3)But in the Information Age, no one can get by with knowing how to read well and understand increasingly complex material.(06年6月六级改错第十题)with>without.这里句子主语用了no one表示否定,而整个句子表示肯定的意思,所以后面必然要用一个否定词without
与no one构成双重否定表示肯定。

(4)Initial impressions are vital, and a badly presented CV could mean acceptance, regardless of what’s in it.(06年1月六级改错第三题)acceptance>rejection

(5)the person who is unfamiliar with the arts, music, literature, philosophy, or history.(04年6月六级改错第六题) unfamiliar>familiar

(6)Except for relatively-isolated trouble spots like present-day Somalia, and occasional years of good harvests, the world’s food crisis has remained just around the corner.(04年1月六级改错第四题)good>poor/bad

(7)Get someone to check for spelling and grammatical errors, because a spell-checker will pick up every mistake.(06年1月六级改错第6题)根据上下文,这里应该表示“不能挑出每个错误”，所以在pick up之前要加上否定词not.

4.-ing型与-ed型改错题。