话题 as an accompaniment of the great advances in pure science是在句中做it主语的补语吗？

问题 比较句中相同主语用代词指代的用法

在句 The effect was far larger for female patients than it was for male ones 中，than it was 是不是 than what it was 的省略用法呢？将 than it was 替换成 than that 可以吗？

问题 and连接的两个名词前有each，every,谓语动词用单数

and连接的两个名词前有each，every,谓语动词用单数，为什么？可以举个例吗？

问题 由and连接的并列结构后面跟随的介宾短语修饰谁

...onal-students make up the majority of numbers in many postgraduate courses and research teams in science，technology，engineering and mathematics.请问最后一部分（红色部分内容）修饰的是前面的postgraduate courses还是research teams呢？可以一起修饰他们两个名词吗...

问题 老师好，句子是：He sent it on via the group's on-line serv

我想请问这个句子中 Death NET 做什么成分？

问题 两个并列的现在分词为什么不用and连接

No matter how low you consider yourself, there is always someone looking up to you wishing they were that high. 请问这里的 wishing 前面为什么没有用连词 and 呢? 两个现在分词可以不用并列连词连接吗?

问题 您好 请问Free ,sterile and impersonal,the trains run

在这里free,sterile and impersonal是修饰trains吗中间为什么要加逗号呢

问题 Stoop and stoop down 的区别

...He stooped to pick up the bag. 同时，你也可以说： He stooped down and pick up the bag. 两句话意思应该是一样的，但同样的stoop，却用法不太一样，如何选择？或者说还有啥我不知道的区别？还请老师们指点，谢谢。

问题 I started making money when I was 16.and that was

I started making money when I was 16.and that was that.Never stopped.这段话的结构是怎样的？and that was that.是什么意思？never stopped.是什么句子？

问题 定语从句与介词短语修饰同一个名词什么时候加and

定语从句与介词短语都做同一个名词的定语，到底什么时候用and，还有什么叫做不同层次的定语，句子成分相同属于同一层次吗?

问题 关于主将从现以及祈使句+and...后面的句子时态问题

...是外研版高一英语必修4课本中的一句话：Simply raise your hand, and a taxi appears in no time.= If you simply raise your hand, a taxi appears in no time.这个句子的后面主句为什么不用将来时呢？我记得主句是祈使句或者if引导的条件状语从句时，主句...

问题 关于句中that用法的疑问

A had mused about banning it over fears that it could hand data on B to C, despite protestations by its parent company, D, that it would never do such a thing. 请问这句话中that后面的成分是相对于protestations的解释吗？如果是的话为什么不直接跟在protestations后面进...

问题 must反义疑问句

...有时亦可用mustn't.1. You must have misheard, haven't you ?2. It must have rained last night, didn't it ?为什么第一句是haven't, 而第二句是didn't ? 为什么第二句不是haven't it ?二句是否都可以用mustn't you/it ?

问题 关于once的主将从现问题

It isn't too difficult once you get the idea. 你一旦弄懂了，就不太难了。It's easy, once you've got the knack. 你一旦掌握这个技能就容易了。Once you're stuck in deep snow, it's difficult to lever yourself out. 你一旦陷进深雪中, 那就很难出来。Remember, once you...

问题 Fluency in English both on spoken and written.

on是介词，为什么后面可以接形容词spoken、written呢？怎么不说成speaking and writing