本文原文来自美国一所学校的英语讲师，内容则是美国学生常犯的十大语法错误（ top ten grammar problems），这里小编幽默地把它们称之为英语语法“十宗罪”。美国学生常犯的这些错误，我们国内学生是否也常犯呢？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.

七、意义含糊的先行词

1. The band members collected his and her uniforms.

2. The band members collected their uniforms.

八、介词和冠词的滥用

1. The project of the government reduces the costs of production of the private firms.

2. The government project reduces the production costs of private firms.

九、句子缺少成分

1. When aiming for the highest returns, and also thinking about the possible losses.

2. When aiming for the highest returns, investors also should think about the possible losses.

十、忘记断句

1. I do not recall what kind of printer it was all I remember is that it could sort, staple, and print a packet at the same time.

2. I do not recall what kind of printer it was. All I remember is that it could sort, staple, and print a packet at the same time.

同学们，以后你们可不能像美国学生一样常犯这样的英语语法错误哦！