What happens when ___water boils? a An the /相关知识点: 语法 词法 冠词 零冠词 试题来源: 解析 D 句意:当水沸腾的时候发生了什么?a/an是不定冠词,修饰可数名词单数,表示泛指;the 是定冠词,表示特指;根据句意可知,这里是when引导的时间状语从句,从句中的主语water前面不需要加冠词。故选D。 考点:...
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。
What happens when ___water boils? A. a B. An C. the D. /试题答案 在线课程 D 【解析】 试题分析:句意:当水沸腾的时候发生了什么?a/an是不定冠词,修饰可数名词单数,表示泛指;the 是定冠词,表示特指;根据句意可知,这里是when引导的时间状语从句,从句中的主语water前面不需要加冠词。故选D。 考点...
Water boiling on a hot surface (Photo Credit : chaoss/Shutterstock) Now, what happens when the surface is way hotter than the boiling point of water? Does it vaporize immediately? Well, yes and no. At a temperature that is significantly higher than the liquid’s boiling point, someth...
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【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。...
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”;whe n,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 形式,从句的谓语;句首单词首字母要大写;故本 题答案为What happens when water boils? 反馈 ...
What happens in the water cycle? How does water change into different states of matter? How does ice cause weathering? What is the reason for ice being less dense than water? When water freezes, ice floats. Why? What happens to water at room temperature if you decrease the atmospheric pres...
Describe what is happening in regards to the heat energy, temperature, molecular potential energy, and molecular kinetic energy when water is boiling. Water and change of phase: Water can exist in many forms, such as water, Ice...
What happens when a geyser erupts to what happens when a tea kettle whistles? Answer #11- Both the geyser's eruption and the tea kettle whistle are both caused bywater vapor. As water boils, the vapor escapes through the hole in the tea kettle causing the whistle. A chemical property des...