【解析】通过观察所给单词及句尾问号可知,本句为特殊疑问句;happens是动词happen的第三人称单数形式,是谓语动词,将特殊疑问词what放在句首,提问主句的主语,后面是陈述句的语序,即后面接谓语动词happens,即“什么发生了”;when,当...时,引导时间状语从句,water,水,从句的主语;boils,沸腾,动词boil的第三人称单数...
解析 What happens when water boils 【详解】 根据所给提示词和句末标点可知,应用特殊疑问句的形式,且含有when引导的时间状语从句;主句部分:what作主语,happens作谓语;从句部分:when是引导词,water作主语,boils作谓语;故答案为:What happens when water boils“当水沸腾时会发生什么”。
What are the temperatures for freezing water and boiling water on the Kelvin temperature scale? Suppose that on a temperature scale X, water boils at 189.2 deg X and freezes at -119.5 deg X. What would a temperature of 220 K ...
Water boils at 100 degrees Celsius and its enthalpy of vaporization is delta Hvap = 40.67 kJ/mol. Calculate the value of delta S (in J/K) for vaporizing 2.00 mol of water at 100 degrees Celsius. While heating two different samples of water ...
Hard water is water that contains high amounts ofCa2+and/orMg2+. Sometimes Mn2+and other multivalent cations are included in the measure of hardness. Note water may contain minerals and yet not be considered hard, by this definition. Hard water occurs naturally under the condition where water...
【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。...
百度试题 结果1 题目What ___ when water boils?would happen happens happened has happened相关知识点: 试题来源: 解析 (B) 反馈 收藏
On the Fahrenheit scale water freezes at 32 degrees Fahrenheit and boils at 212 degrees Fahrenheit. What temperature is halfway between the freezing and boiling temperatures of water? The temperature on a summer day is 77 degrees Fahrenheit. The formula to convert temperature to degrees Celsius i...
Explain why the water boils when it was cooled with ice. Explain the differences in the boiling points for the isomeric octanes below. [Table] Why is the boiling point of iodine is higher than that of chlorine? Define vapor pressure and give its explanation. Describe the effect o...
Exposure is almost always via fish that have been contaminated with methylmercury -- a form of mercury produced in the bodies of tiny sea life that have ingested the elemental form, deposited in bodies of water when rain or snow carry it down from the atmosphere or across land in ...