感冒的原因不是因为天气冷冬天的气温要比夏天低得多，这并不是说温度低就是感冒的原因。事实上引起感冒的罪魁祸首是病毒。感冒是一种传染病。冬天人们喜欢在暖和的房子里，甚至有许多人挤在一起取暖，人与人在一起呆得时间长了，就增加互相传染的机会。（晓荷摘）（Ｈ）... The reason for a cold is not because the temperature is much lower in winter than in summer, which is not to say that low temperature is the reason for a cold. In fact, the culprit in causing a cold is the virus. Cold is a contagious disease. In winter, people like to live in warm houses, and even many people are crowded together to keep their warmth and people stay with them for a long time, increasing the chances of being infected with each other. (Xiao He picks) (H) ...