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问题 不定冠词后接物质名词是什么用法（如a metal）

...s an electro-chemical process by which a metal such as mild steel, returns to its natural state,state,such as iron oxide or rust. 句中a metal何意？书上解释说a metal是泛指一切金属或合金，我没有理解明白？metal是物质名词，通常不可数，a+物质名词，例如...

问题 go,come,sit,stand + doing - 如何理解为主语补语（=表语）呢？

...使用呢？还是所有动词都可以这样使用？2) She came running to meet me - 理解为状语，我能理解（我理解为方式状语），但是如何理解为主语补语呢？（就是表语吧?）

问题 句中的时态结构should never have done wringing跟过去将来完成进行时好像

I was so pleased to see him, that I thought I should never have done wringing his hand.

问题 为什么在表示非特定区域的countryside时，也可用定冠词 the ?

如：Everyone should enjoy the right of access to the countryside.（人人都应享有进入乡村的权利。）——《牛津词典》He is from the countryside.以及下面这句话中的countryside可以用零冠词的理由是？magnificent views over open countryside（开阔乡村的壮丽...

问题 名词后面填不定式是因为名词前有first吗(2020年7月浙江题 60题)

Agriculture gave people their first experience of the power of technology ____ (change) lives. （2020.07浙江）请问这里用to change 是因为first吗？

问题 either…or, neither…nor连接句子

...但not only后面的句子要用部分倒装）：Not only did he promise to do it, but he did it.他不但答应做，而且做了。Not only doe she speak English but also French. 他不仅说英语，而且还说法语。Not only did he turn up late, he also forgot his books. 他不仅...

问题 难句分析(涉及that引导的定语从句的先行词以及代词they的指代)

There is a more fundamental question: is there a better system for creating incentives to produce life-saving medicines priced at a level that means they can reach everyone?请问：(1) that 引导的定语从句的先行词是？(2) they 指的是？

问题 表示职位的名词前可以用冠词吗(2014年江西高考题)

They chose Tom to be ______ captain of the team because they knew he was ______ smart leader.A. a; the    B. the; the  C. the; a   D. a; a本题是2014年江西卷的一道高考题，答案是C。不是说表示职位的名词前不用冠词的吗？但四个选项中，第一...

问题 时态疑惑（涉及用一般过去时还是是现在完成时）

...道题：2人对话：A提问：Will the exchange students be separated into 3 groups for the summer camp ?B回答：There is no need to do that. We arranged everything well the other day.以上是中考英语原题。请问B回答的后半部分用了一般过去时We arranged everything well the o...

问题 As it happens 和 as it happened 中2个as用法一样吗

As it happens, I went to university there !She told me the whole story exactly as it happended.以上2句，as用法，词性是否相同？分别属于哪种从句？从语法上如何分析？谢谢！

问题 考研阅读里的语法错误？

...profit in South Africa after graduating college, Beshara created dvelo.org to help charities group-fund donations for projects in developing countries. 所以请问各位老师，是考研阅读里的句子有语法错误，还是graduate一词有特殊用法？

问题 break up与break down作分解时的区别

...料里做到一个语法填空题：Wastes here are sorted out and taken to a factory,where they are broken ____ for recycling use.我填的down，答案给的是up，后来去网上查，但还是不太清楚，有人说break up是化学变化，break down是物理变化，但是我觉得这道题...

问题 有关真实条件句和虚拟条件句的问题

...拟条件句？新概念2册第88课：lf they knew how difficult it was to drill through the hard rock, they would lose heart.这件事是可以发生的但为什么是虚拟条件句而不是真实条件句？

问题 能否两个不定式做目的状语（不并列）

...说明了一个句子不能有两个目的状语。按照该文的说法，to create a customized  career plan也可以是process of introspection的定语。但我觉得做定语意思不太对，“反省过程创造个性化的职业生涯”，“指导处于职业初期的科学家”目的是...

问题 句首的as a husband, as a man是作状语吗（方式状语吗）

As a husband, I should try to be the anchor of the family.类似 as a husband, as a man, as a student 这种结构是作状语吗？如果是，是方式状语吗？