A.Laughter is the power to drive winter away and welcome warm spring. B.Laughter can keep one’s face warm，especially during freezing winter. C.Laughter can make people forget their problems and make them feel happy. D.Laughter can give people warmth，so their faces are not cold.

Ⅱ.课文理解 1.How do you understand the sentence “Laughter is the sun that drives winter from the human face”？