... skills. 40drowsy (adj): ngủ gật snooze (n) ngủ gà gậtforty winks: chợp mắt doze (v) ngủ lơ mơshut- eye (n): nhắm mắt skip (v) ngủsiesta (n): giấc ngủ trưa ở sứ nóng nap (v) chợp mắt một látTable ... topics such as sleep (unit 1), student’s life (unit 3), work (unit 4), food and drink (unit 5), English- speaking countries (unit 6), healthy food (unit 7), daily activities (unit 8), and so on. ... are sleep (unit 1), food (unit 5), work and retirement (unit 4), expressing changes (unit 8), a healthy diet for everyone (unit 7), greenhouse effect (unit 11), expressing feelings (unit 13)....