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问题 it是否为形式主语

...help building telecommunications networks, hospitals, underground railways and, it is rumoured, ports on some of the world’s most strategic waterways. 如果是形式主语，代替什么呢？还是叫做虚拟主语？

问题 目的状语还是宾补

In contrast, the study found, a smartphone can unobtrusively and accurately measure a patient's daily activity, providing data that could trigger a health care provider to recognize the need for an intervention.老师这里to recognize有人说是目的状语，但是我感觉这是宾语补足语...

问题 不定式在口语中可以单独使用么

And now to see the end of the football game. 例如这句就是口语，此句不定式是单独使用么？在口语中可以。书面语就不可以了是么?

问题 where在句中的用法

Other examples might be where one student is given a picture and describes the picture for another student to draw, or where students draw each other's family trees. 老师好！这里的where是什么用法？是引导表语从句吗？可是这里没有疑问的意思啊？

问题 mixed 与 mixing 用法的区别

We could hear the sound of the rain and our footsteps mixed with our laughter. 老师,我不明白为什么此处的mix需要使用ed形式,而不是ing的形式? 我们的笑声与前面句子有伴随关系，为什么它不是主动形态呢？

问题 piece by piece作什么状语

Temples and other cultural cites were taken down piece by piece.本句摘自高中英语新教材（人教版）必修二第1单元(p4)。请问句中的 piece by piece 作什么成分？是状语吧？但是什么状语呢？

问题 US（美国）前面必须要有定冠词吗

Christmas is a very important festival in Britain and US.有人认为这个句子是错的，应该在 US 前面加上定冠词。是这样吗？

问题 get back to的用法

例句：I hope these tips can be of some help, and that your life will get back to normal soon.此处 get back to 后接形容词，请问有这种用法吗？get back to的用法又有哪些呢？

问题 than anyone else 的用法疑问

They are much cheaper and more reliable than anyone else.than anyone else是不是在句子前半段被省略了。想问下句子的省略，通常是前面有相同的成分，后面省略；还是后面有相同的成分，前面省略？

文章 关于 believe in sb. 和 believe sb. 的用法辨析

... 版p.175）3. believe in sb. 的意思是: to feel that you can trust sb. and / or that they will be successful (信赖；信任；相信某人会成功) They need a leader they can believe in. 他们需要一个可以信赖的领导。（《牛津高阶英汉双解词典》第9版p.176）4. He say...

问题 名词性句还是定语从句

老师您好。Tired and disappointed, the resure team finally reached ______ used to be a village.这里的空填what。 答案说这是名词性从句，但我觉得空前面不缺成分，reach 不是个不及物动词吗？后面又缺成分，应该是个定语从句啊。谢谢老师的...

问题 英语句子翻译（英译汉，有点难）

They predict there is a greater than 90% probability that by 2100,the average growing-season temperature in the tropics and subtropics will be higher than any temperature recorded there to date.请专家老师帮忙翻译一下！

问题 怎么理解此处的have got

Ice and snow (   ) some ancient animal bodies kept through thousands of years under them.A.getB.haveC.have gotD.got本题答案为C，请问老师这个句子怎么翻译？此处have got怎么理解？为何A/B选项有误。谢谢老师指点。

问题 从句中could have done用法

Once again he failed，and he felt that he never could have succeeded. 请问，这里为什么要用 could have succeeded?可以这样说吗? He felt that he never could succeed.谢谢！

问题 两个英语单词加横杠的疑问

The analysis was done commercially from outside vendors on whole core samples and the reported MIP data are conformance-corrected.老师，这个conformance-corrected中的横杠是啥意思啊？能讲解一下吗？这和常用用five-year-old中的横杠有区别吗