Unit 2My mothers cleaning our house and sweeping away bad luck,1.Its a few days before Spring Festival.(教材P62)那是春节前的几天。 解读 此句中before作介词,后接时间点。 拓展before还可作连词,引导时间状语从句,2.My mothers cleaning our house and sweeping away bad luck.(教材P62)我妈妈在打扫房子扫除霉运。 解读 此句中sweep away意为“扫去”,后面可接表示“雪、尘土、垃圾”等含义的名词。 They are sweeping the snow away. 他们正在扫雪。 拓展sweep作及物动词,意为“打扫,清扫”,可接表示“地板、天花板”等含义的名词。Tony is sweeping the stairs.托尼正在打扫楼梯,3.We are celebrating Spring Festival with a traditional family dinner on the evening bef