该部分概括了未遂犯理论的历史嬗变及未遂犯的概念和成立条件。

It sums up the history evolvement of the uncompelled crime theory, the conception and the establishing conditions of it.

第二部分未遂犯的理论基础与处罚依据。

The second part is the theory basis of unaccomplished crime and the foundation of punishment.

在功利论内部分析未遂犯处罚问题，需要将功利论内部的一般预防论与个别预防论两支分开论述。

While study the issue in the field of utility, it should be discussed from the branch of general prevention and individual prevention separately.

结合外国刑法学关于不能犯的理论，论述了可罚的未遂犯与不可罚的不能犯的区别及判断方法。

The paper also probes into the foreign impossibility theory and puts forward some advice on how to differentiate the two kinds of impossibility.