Unit One Emotion Part A Part B Part C Unit Two Psychology Part A Part B Part C Unit Three LifeScience（Ⅰ） Part A Part B Part C Unit Four Life Science（Ⅱ） Part A Part B Part C Unit Five History （Ⅰ） Part A Part B Part C Unit Six History （Ⅱ） Part A Part B Part C Unit Seven Communication （Ⅰ） Part A Part B Part C Unit Eight Communication （Ⅱ） Part A Part B Part C Unit Nine Community （Ⅰ） Part A Part B Part C Unit Ten Community （Ⅱ） Part A Part B Part C Unit Eleven Justice （Ⅰ） Part A Part B Part C Unit Twelve Justice （Ⅱ） Part A Part B Part C Key to the Exercises
