四級和六級考試寫作雖然曾經采用相同的命題，但是評分卻有差別。在寫作測試和教學中，考生和教師都應該敏銳地把握這些差異。具體地講，語匯、語型、句法和章法結構多個方面在深度和準確程度上有差異 。
     　實際上不同的考試使用相同或者相似的命題，在國外測試中屢見不鮮。托福和雅思，GMAT 和GRE命題很多時候是相同的?？墒强荚嚨脑u分重點有很大的不同。
     　寫四級作文，考生應該注意不要超過四級考試的詞匯范圍。句法結構要有適當?shù)淖兓遣灰褂眠^于復雜的從句。否則，錯誤的復雜句子遠遠不如正確的簡單的句子。
     　我們用一道具體的題目分析四級和六級的差別。
     例題：1998年1月
     Part Ⅴ Writing (30 minutes)
     Directions: For this part, you are allowed thirty minutes to write a composition on the topic Harmfulness of Fake Commodities. You should write at least 100 words and you should base your composition on the outline (given in Chinese) below:
     1. 目前社會上有不少假冒偽劣商品(fake commodities)。為什么會有這種現(xiàn)象?
     2. 舉例說明假冒偽劣商品對消費者個人、社會等的危害。
     Harmfulness of Fake Commodities
     范文一
     Each individual encounters such troubles as sickness and discomfort situations in his or her development. Similarly, each society is inevitably harmfully impacted by immoral or even illegal economic activities in the process of its evolvement. The most notorious and harmful among these despicable actives are fake commodities.
     Fake commodities, like a virus that intrudes and cripples an organism, exert alarmingly detrimental influences on each individual consumer, the community, and the social mores as well.
     They directly hurt the consumers by providing products that are priced highly but inferior in quality. Sometimes such products as faked medicine or foods can threaten consumers’ life, needless to mention consumers’ economic loss. The more fake commodities a society has, the more exacerbated the moral and ethic in that society.
     What the society must immediately address is to minimize the quantity of any fake commodities and eradicate any opportunity to manufacture them. 146 words 注意現(xiàn)在的作文要求字數(shù)增加到了200字左右。