Summarizes the discontinuation in English sentence structure, which is so commonly found in so various forms,and groups them into five categories, namely discontinuation between the attribute and the modified, between subject and the verb, object and the complement and the discontinuations caused by modification and grammatical functions.

They involve the issues as how to define the concept sentence in Chinese;what are the differences between the standards for dividing English sentences and Chinese ones;will the understanding toward the previous two questions influence translation practice.

In the perspective of using English to express ideas, we can classify English sentences into 3 kinds - simple, complicated and concise ones.