分析下几个词吧Air is made up of mattermatter为什么用单数?He said the dama

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/07/18 09:31:59

分析下几个词吧
Air is made up of matter
matter为什么用单数?
He said the damages were not paid but the damage was repaired last week.
分析下damage这个词什么时候用复数什么时候用单数?
He fell from the steps leading to the building and sprained his ankle.
step为什么用复数?

Matters如果用“matters"就变为事件复数,而不是物质.
第二句差点看错,原因很简单,因为前半部分说造成的损害（多数）没被补偿,但是从句只说了单个损害,所以用was.可能句子表示了精神和物质损害吧?
steps这此泛指楼梯,用"step"不对,因为表达不是只说”他从单个台阶上摔下来了“.

The air is made up of more than 70% of nitrogen（同义句） The air in the atmosphere is made up of different gases. The air that you breathe is made up of many d gases mixed to She made no doubt of what he had said为什么用made What is the sun made up of? this medical team is made up of eleven doctors.为什么is 后面用made 英语翻译1.Then he held his plate up in the air and said loudly.2 What is the House of Lords made up of? Jim said he favors the proposal中为什么过去式said 后用favors第三人称单数,而不英语句式分析1、he is constantly waking up in the middle of the nigh 英语句子词分析the paper he made was of poor quality because he foll he said that the tree is a useful source of income.请问为什么是is