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问题 复杂句中时态问题

The research found that people who watched a movie in 3D had improved cognitive skills compared to those who watched it in 2D.前三处谓语时态对吗？可以换用其他时态表达同样意思吗？过去完成时是相对哪个过去动作？第二个谓语动词应该先于第三个，但从...

问题 关于省略句中情态的一个问题

The research is so designed that once nothing can be done to change it 在翻译这个句子的时候，请问“once begun “这个省略句是被动语态还是现在完成时？二者都是合理的吗？请老师们指导我

问题 a ship this size的分析与理解

请问a ship this size 是不是就相当于a ship in this size?还有这里的this size 是介词短语做后置定语的特殊形式吗?

问题 说出第2个it指代什么

It is fair to criticize and question the mechanism—that is the culture of research, after all—but it is the prize-givers’ money to do with as they please. 说出第2个it指代什么。并说出理由!

问题 关系代词which, who的选择

Then Needham began his lifelong research，______ ended up creating the greatest work—Science and Civilisation in China为什么不能填写who呢，先行词是人Needham，Needham开始他毕生的研究，Needham最终创造了巨著——中国科学技术史。

问题 this far做状语

But you've endured my dust this far; I'll put up with yours the rest of the way. this far 是做状语吗？

问题 it this指示代词

He doesn't have any particular need. This makes him fit for your position. This可以换成it吗，换成it的话It是指示代词作主语而不是形式主语？

问题 decision后面的同位语从句可以省略that吗

(1) The decision (that) whether or not to salvage the wreck was not an easy one, although an excavation in 1978 had shown that it might be possible to raise the hull.(2) The hope that he may recover is faint.请问：是否可以认为 decision 后面省略了that？是同位语从句吗？

问题 动名词作主语问题

...句子了，那 I want to do后面那一句在句子是作什么成分的?Although I was at first reluctant ,I'm glad I went to see the doctor.3.at first 在这里是介词短语还是顺序副词？顺序副词只能是一个单词，还是可以是一个词组？4.为什么at first 可以放在形...

问题 关于pulse on the industry

As a board member for the Internet Security Research Group, she always has her pulse on the industry.1、她总能摸头行业的脉搏2、她总是很勤奋，抱有热忱这句话应该属于哪种意思么？我读出了歧义

问题 this sort of man的问题

Everybody is shy of this sort of man.英语表示这种人的说法是 this sort of man 吗？man 是可数名词，为什么要用类似修饰不可数名词的方法来修饰 man 呢？请老师，帮忙分析一下 this sort of man 的结构，谢谢解答。

问题 Never before置于句首的倒装以及before的词性问题

Never before has our nation enjoyed so much prosperity and so much social progress with so little internal crisis.我知道这里是否定副词 never 在句首导致了倒装，那这里 before 是什么词性呢？为什么一定要把 before 也倒装呢？为此我查了柯林斯词典，其中...

问题 with复合结构用法疑问

...ricultural departments Have made great advances in biotechnology and basic research, with its cultivation of plant cells and tissues, with haploid breeding and application being at advanced world levels.第二个with错误吗？

问题 surpass的搭配问题

... technology, science and engineering, where state-of-the-art equipment and research will surpass that on most computers.老师，surpass that的这个that是什么意思啊？surpass on是固定搭配吗？

问题 and连接的动名词短语作主语谓语动词用单数还是复数（主谓一致问题）

Although observing and recording their daily activities ____ very tiring and dirty sometime.横线处应该填is还是are呢？