Frank.P

雅思一包 2.5（补充）
But not all parts of the brain are equally involved; the limbic system ("the emotional brain") is especially active, while the prefrontal cortex ( the center of intellect and reasoning) is relatively quiet.
3.1
        He is so excited last night, so that he can't sleep.
3.2
        The education, collage and academic is use for maintain the country's life and left the culture to the next generation. Also, education can train the teens minds and abilities. And the education have the responsibility to train the mind and the skill by the actives which creative sprit to change the academic institution for adapt the futures demand.