Development of CAI System for Language Education Using Machine Translation and Communication Facilities

为了通过课程的方式促进个人计算机在教育中的应用，我们围绕语言教育特别是英语语言教育进行了一些具体的尝试。这是一个针对英语听、说、读、写四项技能中听、说、读各方面训练的CAI系统。然而，在写作（英语作文）方面，它只对应于一种方法，该方法以传统的方式用估计答案来描述程序。这种方法的缺点是，只要有新的正确答案出现，程序就需要修改，而且由于其错误判断，它的英语作文只支持估计错误答案和KR （Knowledge of Result）信息，这是一个大问题。换句话说，这是一种强迫人们机械地学习的方法。本研究提出利用翻译软件来弥补这些缺陷，并在CAI英语培训辅助中嵌入翻译软件的核心部分——翻译引擎，以支持英语作文。通过将翻译软件定位为CAI训练辅助的功能之一，学习者根据CAI训练辅助提示的英语作文问题，将自己输入的英语作为翻译的日语显示在CAI学习屏幕上。学习者判断自己翻译的日语单词是否合适，并不断重复，直到写出最优的日语单词，那么他们的英语作文就确定了。

In order to promote the utilization of personal computers in the education by curriculum, we have carried out some specific trials focusing its object on the language education, particularly on English language education. These are a CAI system aiming at each training in listening, speaking and reading among the four skills in English, listening, speaking, reading, and writing. However, referring to writing (English composition), it was corresponded to only a method of which program was described with an estimated answer in the conventional manner. In this method, such defect and apt to mistake, its program is needed to revise whenever a new correct answer came out, and as a further great problem, its English compositions were supported with only a estimated wrong answer and KR (Knowledge of Result) information due to its erratum judgment. In other words, it was a from that forces to learn something mechanically.This research is to support English compositions by proposing the utilization of a translation software to make up for these defects and by embedding a translation engine which is a central part of the translation software into the CAI English training aid. By positioning the translation software as one function of the CAI training aid, learners display English typed by themselyes on the CAI learning screen as a translated Japanese against the question of English composition indicated by the CAI training aid. Learners judge whether their translated Japanese word are proper or not and repeat until optimal Japanese words are composed, then their English composition are definitely settled.