解析 【解析】【答案】boil; boils 【解析】本题结合句意,后面是when引导的时间 状语从句,从句中water是第三人称单数,且由主 句happens可知时态为一般现在时,故从句时态也 为一般现在时,boil动词,煮沸,沸腾,这里要用 第三人称单数boils。故本题答案为boil;boils。
【解析】boil 作动词,表示沸腾,煮沸;A to boil 不定式形式;B boiling 现在分词形式;C will boil 将来时;D boils 主语是第三人称单数形式;根据句意,水沸腾是一种客观现象,所以句子时态是一般现在时。水是主动发生了沸腾boil这个工作,并且“water(水)”是不可数名词作主语,故用单数第三人称的谓语动词形式。...
If water has a boiling point of roughly 100 degrees C, why does it evaporate at room temperature? What is the temperature change when you heat water from 50 degrees Celsius to 90 degrees Celsius? At what temperature does water boil?
Filter water through a clean cloth, paper towel or coffee filter or allow it to settle. Draw off the clear water. The City of Austin advises people to bring water to a rolling boil for at least three minutes.The CDC says water should be brought to a rolling boil for at least one minu...
Apply warm compresses, and soak the boil in warm water. This will decrease the pain and help draw the pus to the surface so the boil can rupture. Once the boil comes to a head, it will burst with repeated soakings. This usually occurs within 5-7 days of its appearance. You can mak...
"What does water use?" The sun, says a star, "water but only use it?" That was the question that inspired several people to turn around. Take machines called water purifiers, for example, that are used to clean water. They make water look much less like water than it really is. ...
百度试题 结果1 题目What happens when you keep the water ___ in a kettle?(boil). 相关知识点: 试题来源: 解析 [答案]boiling [解析]本题考核动名词。keep the water boiling保持水沸腾,故填boiling。反馈 收藏
Why Does Water Evaporate at Room Temperature? What Happens To Water On A Hot Surface? The boiling point of water is around 100oC at sea level, but why exactly does water boil at this particular temperature? Temperature, in simple terms, is a measure of the kinetic energy of the measu...
Can you over-boil something? Yes, over-boiling can lead to nutrient loss and undesired texture changes. 8 Is boiled water as pure as distilled water? No, boiling removes pathogens, but distilled water is purer as it also removes minerals. 6 Does boiling water make it safe to drink? Boili...
(sea level). However, the value is not a constant. So, the longer definition of water's boiling point can be explained as such: The boiling point of water depends on the atmospheric pressure, which changes according to elevation. Water boils at a lower temperature as you gain altitude (e...