Unit 4单元知识短语1. 有关病症的短语：have a fever 发烧 have a high fever 发高烧 have a cough 咳嗽 have a cold 感冒 have a bad cold 得了重感冒 have a flu 得了流行性感冒have a headache 头疼 have a toothache 牙疼 have an earache 耳朵疼 2. 有关去看病的短语 go to see a doctor去看病 have a rest休息 have a good rest好好休息 have a lot of rest 多休息take some medicine 服药 drink some water喝水 drink a lot of warm water 喝大量的热水3. feel cold 觉得冷 feel后面跟形容词：feel hot / warm / cool / hungry / thirsty / happy / sad / tired / ill / wet /
