留留恋恋
how often 多久一次hardly ever 几乎不as for 至于junk food 垃圾食物a lot of 许多of course 当然look after 照顾do exercise 锻炼make a difference 有区别的/有重要性的surf the Internet游览因特网Animal World 动物世界do homework 做家庭作业a healthy lifestyle健康的生活方式get good grades 获得好成绩get up 起床keep in good healthy 保持健康once or twice a week 每周一两次eating habits 饮食习惯ten to eleven times 十到十一次pretty healthy 相当健康go to the movie 去看电影watch TV 看电影read books 看书the result for "watch TV" 看电视的调查结果be good for 对……有益want sb to do sth 想让某人做某事how many hours 多少小时2单元：have a cold 患感冒a few 有些at the moment 此时/现在have a stomachache 肚子疼have a sore thorat 嗓子疼have a fever 发烧lie down 躺下see a dentist 看牙医have a headache 头疼have a toothache 牙疼hot tea with honey 热茶加蜂蜜stressed out 紧张go to bed early 早睡觉listen to music 听音乐go to party 参加音乐会on the other hand 在另一方面stay healthy 保持健康have a sore back 背疼traditinal Chinese doctors 传统中医a banlance of yin and yang 阴阳平衡too much 太多a balanced diet 饮食平衡go out at night 在晚上出去feel well 感觉舒服conversation practice 对话练习host family 房东give sb a fever 导致某人发烧
