网友Camden2002今天上午给我发来一篇英文文章，作者是美国一所大学的英语讲师，内容则是美国大学生常犯的十大语法错误（top ten grammar problems）。Camden2002网友建议我把这篇文章翻译出来，让国内的英语学习者看看，美国大学生常犯的这些错误，我们自己是否也常犯。这个建议非常好，不过我最近比较忙，各位的时间也很宝贵，所以我只把这十大语法错误的大意翻译出来，供各位参考一下。另外请注意：在下面的十组例句中，第一句是病句，第二句则是改正过来的句子。

　　一、句子之间缺少过渡性的单词或词组

　　① Salmons swim upstream， they leap over huge dams to reach their destination.

　　② Salmons swim upstream， and then they leap over huge dams to reach their destination.

　　二、省字号（'）的滥用

　　① the government's plan

　　② the plan of the government

　　三、代词之间的性、数、格不一致

　　① Everyone has their homework.

　　② Everyone has his （or her） homework.

　　四、主句与从句的顺序不当

　　① Some of the new dot-com millionaires found out the party was over， after the NASDAQ value dropped by over two thirds.

　　② After the NASDAQ value dropped by over two thirds， some of the new dot-com millionaires found out the party was over.

　　五、双重否定

　　① Barely no one noticed that the pop star lip-synched during the whole performance.

　　② Barely anyone noticed that the pop star lip-synched during the whole performance.

　　六、修饰语、插入语的位置不当

　　① The forest fire， no longer held in check by the exhausted firefighters， jumped the firebreak.

　　② No longer held in check by the exhausted firefighters， the forest fire jumped the firebreak.