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问题 情态动词would的用法难点

下面2013新课标I卷的一道题：The door________ open, no matter how hard she pushed. A.shouldn’t B. couldn't C. wouldn't D. mightn't 答案是C。请问如何解释这个would的用法？为什么不能用couldn’t呢？

问题 特别奇怪的一个定语从句（特别难）

The extent to which it helped to promote Britain’s broader strategic interests was sometimes questionable. 请问这个句子中的 to which 如何理解？这引导的是定语从句吗？这个句子该如何分析呢？如果是定语从句，这真是一个特别奇怪的定语从句...

问题 its用作名词性物主代词和形容词性物主代词

老师，您好！The child smiled when it saw its mother.这句话里的 its 是做形容词性物主代词，不是做名词性物主代词，对吧。谢谢。

问题 如何理解一个短句中的两个that从句

今天听一个英语节目，说到一个句子：It would be foolish to do the thing that everyone considers that it is wrong.请问如何理解句中的两个that？

问题 请问如何理解和翻译粗体部分的句子？

After ten thousand years, the planet would still be something like fourteen degrees Fahrenheit hotter than it is today.请问如何理解和翻译粗体部分的句子？

问题 名词指代多个或同一个物或人

The projected was observed by Ada’s supervisor, teacher and mother.多个名词指代同一个人时的表达方式是什么，如本句，supervisor, teacher and mother 指代的同一个人，如何区别名词指代多个人/物还是同一个人/物？

问题 定语从句里有个do是什么语法现象

Every sky has its beauty, and storms which whip the blood do but make it pulse more vigorously.  定语从句里有个do，这是什么语法现象？

问题 ​Thanks for ...，后加不加and的问题

Thanks for your suggestions, and the information about names and affiliations are right.这句话中的and是不是可有可无呢，看见有道词典上有的有，有的无.

问题 set和set down的区别

She set the tray down on a table next to his bed.这句话中我感觉down要不要都没有什么影响啊，set...on把某物放到某物上，可以把down删了吗，另外on的介词短语是宾补还是状语呢？

问题 关于learn from receive from的提问

老师，请看两个句子 receive messages from my friends 中这里的介词短语做的是定语么？还有learn the skill from my teacher中，介词短语是做状语么，请老师确认。

问题 中译英（系动词可否共用的问题）

The ban is good for our environment and changing our living habit. 比如想表达  这项禁令对我们的环境有益，同时正在改变我们的生活习惯。  如果不是be good for的并列句，还可以共用开头的is吗？

问题 followed是不及物还是及物动词

Suddenly the man who followed fell over a stone. He hurt his foot badly and called : “ Hey, Bill , I’ve hurt my foot.” Bill continued straight on without looking back. 此处的followed是不及物动词还是及物动词？ 后面还接了动词？

问题 关于when引导的时间状语从句

When I did my homework,my father came back.这个句子对吗？ 前面的did，，，一定要改成was doing吗？When I lived in the countryside,I worked for a newspaper.这样可以吗？when 的主从句时态，有什么规律吗？老师可以给我讲一下吗？

问题 about之后how引导的是什么句子？

The disagreement reflects uncertainty about how effective social distancing will be and how long it will take before a covid-19 vaccine is widely available

问题 with, by, on介词使用问题

—Dad, look at the building. It's on fire.—Call 119 ______ mobile phone right now.A. in  B. by   C. on    D. with请问各位老师，这里是应该用by吗？by后的名词不加冠词。