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问题 captain 前面到底什么时候用冠词什么时候不用冠词

书上说，下面句子中 captain 前面通常不用冠词：They named me as captain. 他们任命我做队长。但书上又说，下面句子中 captain 前面必须要有冠词：The captain gave the order to abandon ship. 船长下令弃船。真是搞糊涂了！请专家老师指点！

问题 关于would和could在虚拟语气中的疑惑

发现两个例句起注意：If you are feeling energetic, we could go out for a run这句话是在朗文写作词典当中的这个例句中 为什么会使用could这个情态动词呢，根据大部分语法书介绍，在if一般条件句的虚拟语气中，若主句中使用would加原形动...

问题 being 和 as 有何区别

举个简单的例子：Being a student, you should work hard. As a student, you should work hard. being 和as应该都是“作为”的含义，那它们的本质区别又是什么呢？还望专家老师们赐教！

问题 如何看待这句话的结构

'You're always -ing' means that you do something very often, more often than the speaker thinks is normal or reasonable. 如果将than看作准关系代词，那么这句话就是嵌入式关系分句。要是按比较分句分析呢？省略了什么内容？

问题 定语从句关系副词能不能由that代替

定语从句关系副词如 where / when / why / how 能不能由that代替  代替后that能不能予以省略? 谢谢回答!

问题 句子中的 unexpectedly 如何翻译

词典上对 unexpectedly 的解释是: 未料到地,意外地。但结合句子来翻译有时不好做。比如下面的句子：He wasn’t at home when I went there. He might have had to go out unexpectedly. 

问题 All had gone home错在哪

有人说下面句子中有错：When I arrived, all had gone home. 请问专家：这个句子错在哪里？

问题 on holiday 和 in holiday

I actual learned to dive in my hometown when I was in holiday.这是一道改错题， 为什么把in改为了on呢？

问题 otherwise的含义用法以及如何理解

When the concrete hardens, those otherwise harmful emissions are sequestered forever, before they even reach our atmosphere.句中otherwise什么用法，如何理解呢？如果去掉，语义有何变化？

问题 eat healthier 的说法对吗

Reaserch shows kids eat healthier when they regularyly share meals with their familis. eat healthier这个表达不对吧？动词能直接加形容词吗？或者改为more healthily吗？

问题 如何理解是做宾语还是状语从句

I can't remember when I saw him last.如何理解这里的remember是做及物动词引导宾语从句，还是做不及物动词接状语从句？

问题 名词短语作状语吗（是什么状语）

A precocious child, she went to university when he was 12.请问这个句子中的名词短语 A precocious child 是状语吗？如果不是，它是什么成分？如果是状语，它是什么状语？

问题 这里是形容词充当状语吗？

请问以下句子属于这个语法吗？This is really delicious. I can't remember when I've eaten better. 这里的eat better或者还是说eat是系动词？请教各位

问题 用作状语的to say与saying

下面句子中的to say my supper was in the fridge是什么成分？为什么不用现在分词saying my supper was in the fridge 呢？ She left me a note to say my supper was in the fridge.

问题 as far as to用法分析

He even went as far as to accuse me of betraying him.请教这个句子中 as far as to do该怎么分析成分？另外as far as to do等于so far as to do吗，二者是否可以随时互换？as far as to do和as far as有什么区别？