The article is fixed on various views on the personality structure, which is basically directed at students’ personal and professional features. The author refers here dynamic functional structure of K. Platonov, personality structure static model of А. Petrovskyj, three component structure of І. Мalafiyik. L. Pavlova named procedural moments, emotional-voluntary sphere and psychological peculiarities as the factors of personality characteristics. Aspect of the mental working capacity is directly connected with organization of the teaching process at the lesson. The author gives ESP examples which illustrate practical application of the grammar knowledge in the real life situations. Taking such personal characteristics like character and temper into account allows to organize teaching activity according to the students’ abilities. In general interaction between teachers and students contributes to rational building a lesson to form the future IT-engineers’ foreign language readiness to use a foreign language in their professional activity. Educational process is based on communication, where both teaching and psychological aspects are shown. Besides, social influence on formation of personality is very essential for everybody. Thus, correctly considering separate components of the students’ personality structure in the educational process, teachers directly influence their personality formation. This activity is aimed both at their further personal development and professional advance.