1Unit 8 Natural disasters Period 4 Grammar 重点单词1break vi. 损坏；打破2break vi.broken adj.重点短语1break down (车辆或机器)出故障，坏掉2because of the cold weather 由于寒冷的天气重点句型1Millie was watching TV when Andy came into the room.当米莉正在看电视时，安迪走进了房间。2While Suzy and Kitty were building a snowman, Millie was taking photos.当苏西和基蒂正在堆雪人时，米莉在照相。公交小句1What beautiful girls they are! 她们是多么漂亮的女孩啊！2When/While/As mother was cooking dinner, I got home.当我到家的时候，妈妈2正在做晚饭。
