2003年6月举行的大学英语四级考试作文标题是：“An Eye-witness Account of a Traffic Accident。作文的提纲为：假设你在某日某时某地目击一起车祸，就此写一份见证书，见证书须包括以下几点：
1．车祸发生的时间及地点
2．你所见到的车祸情况
3．你对车祸原因的分析
以下是考生在这次作文中出现的一些常见的词汇、语法错误，或一些不符合英语习惯表达法的句子。笔者在此作了适当的修改并附了简短的解释。
1．误：When the aid bus came，the driver was already lying on the ground．
正：When the ambulance came，the driver was already lying on the ground．
解释：词汇误用。救护车是ambulance，不可说aid bus。
2．误：The driver was badly wounded．
正：The driver was badly hurt／injured．
解释：词汇误用。wounded多表示用武器造成的伤害。
3．误：The driver did not fasten his safe belt．
正：The driver did not fasten his safety belt．
解释：safety belt为固定搭配。
4．误：When the man was acrossing the road，a bus hit him．
正：When the man was crossing the road，a bus hit him．
解释：词汇误用。across是介词，不是动词。
5．误：There is a traffic light in the ten-word road．
正：There is a traffic light at the intersection．
解释：生造词汇。ten-word road是典型的汉语式英语。
6．误：The two cars collided with each other hardly．
正：The two cars collided with each other very hard．
解释：词汇误用。hardly表示“几乎没有”，而不是“猛烈地”。
7．误：The cause of the traffic accident was the driver's careless．
正：The cause of the traffic accident was the driver's carelessness．
解释：词性误用。careless是形容词，而非名词。
8．误：One day I went to school like normal．
正：One day I went to school as usual．
解释：生造词组。like normal是典型的汉语式英语。
9．误：The driver sent the injured man to hospital immediately．
正：The driver took the injured man to hospital immediately．
解释：词汇误用。send表示“送某人去某处”，但送者本人不去。
10．误：I think，in my opinion，the driver drove too fast．
正：I think the driver drove too fast．
解释：意义重复。in my opinion即有I think之意。
11．误：That is all I had seen．
正：That is all I have seen．
解释：时态误用。根据句意应用现在完成时，而不是过去完成时。
12．误：I think the reason of the traffic accident is three．
正：I think there are three reasons for the traffic accident．
解释：句型结构错误。此句应用there be句型。
以上错误主要是由于词汇量匮乏和阅读量不足引起的。为避免这些错误，考生应加强语言基本功的训练，要注意积累词汇和常用句型，掌握一些基本词汇和词组的正确用法，增强英语语感。对一些容易混淆的语言现象或单词拼写要细心加以区别，这样才能将已学过的词汇、句型正确、熟练地应用于写作之中。使所写作文结构完整，组织严密，言之有物。
