豆豆经过厨房门口时,突然听到一阵“呜呜”声。他扭头一看,灶台上热气腾腾的,原来是水开了,发出刺耳的鸣叫声。于是,他连忙喊:“妈妈,水开了!”妈妈闻声赶来,手上提着两个热水瓶。她走到煤炉前,拿开热水瓶的盖子,提着水壶把开水倒了进去。 Peas through the kitchen door, suddenly heard a burst of “whining ” sound. He turned to see that the steaming stove, turned out to be water, made a shrill whine. So, he quickly shouted: “Mom, the water is on! ” Mom heard, carrying two thermos in his hand. She walked to the front of the coal stove, took away the lid of the thermos, lifted the kettle and poured boiling water into it.