（以下各例中，a）表示错误的或不宜提倡的句子，b）表示正确的或值得模仿的句子。）

2．主语和谓语，名词和代词，以及人称是否保持一致

a) The eating habit of Chinese people have changed in the past decade.

　　b) The eating habit of Chinese people has changed in the past decade.

　　不管主语和谓语隔开多远，主语当中还有修饰成分，谓语要和真正的主语在数上保持一致。

a) Now fruits and vegetables can be seen everywhere when it is in season.

b) Now fruits and vegetables can be seen everywhere when they are in season.

a) I feel proud to come to our university.

b) I feel proud to come to this university

our和主语 I不一致，或把 our改成 my，或改成 this。而这里用 this 较妥。

3．修饰语是否放在正确的位置上

a) Without television, people can't get information which comes from other parts of the world immediately.

b) Without television, people can't immediately get information which comes from other parts of the world.

a句子，immediately 显然放错了位置。是“得到迅速从各地传来的消息”，还是“迅速得到从各地传来的消息”？意思含糊不清。

a) At the age of six, my father began to give me English lessons.

b) When I was six years old, my father began to give me English lessons.

a句子，At the age of six 放在这个位置上，变成了“我父亲六岁的时候”。改变说法，可以解决这个问题。

a) To improve one's writing skill, regular practice is necessary.

b) To improve one's writing skill, one must make regular practice.

不定式短语的逻辑主语决不是regular practice，为了把逻辑关系表达清楚，要么把不定式短语改成If one wants to improve his writing skill，要么把主句改成one must make regular practice。