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问题 肯定句改成一般疑问句是否一定要将and改为or？

...绍，但是在一般疑问句中我却没找到权威的论述。比如：The seal ate some fish and crabs.Did the seal eat any fish and/or crabs?最好能提供权威的对这个问题的描述，现在好多书都是抄来抄去，说的也不清楚，谢谢

问题 两个并列的of结构之间不需要加and吗

例如这个句子：It is the same old story of not being grateful for what we have until we lose it, of not being conscious of health until we are ill.应该下面的句子才对吧：It is the same old story of not being grateful for what we have until we lose it and of not being conscious of hea...

问题 get + done的用法

The boxer got staggered and fell down when his opponent gave him the final blow.https://www.cpsenglish.com/question/52391这是我以前提过的一个问题（以上网址的问题1），语法书说被动语态还可以是get + done，但是stagger在本句是个不及物动词，所以可以排...

问题 转折连词but,however,still,yet,nevertheless,while,where

but, however, still, yet, nevertheless, while, whereas 都能表示转折。但是有什么不同呢？还是说基本上可以相互替换呢? 我以前也没接触过英语，只能根据这个单词的汉语意思来理解，可是查过之后感觉都一样呀？ 也请老师说说您...

问题 句子成分分析

On search engines,companies will bid on keywords to use in ads. 这句话中to use是keywords的定语，形成动宾关系?如果use后面加上it On search engines,companies will bid on keywords to use it in ads.这个句子中to use it in ads是状语吗? 老师解答，谢谢！

问题 so+adj./adv.倒装

请问John was so deeply absorbed in painting that he didn't notice evening approaching.可以倒装成 So deeply was John absorbed in painting ...吗？So deeply absorbed was John in painting ...呢？

问题 句子成分分析(It is not how much...but how much...)

It is not how much time you allocate for study that counts but how much you learn when you do study.老师，帮我分析一下。

问题 英语可以说force sb doing sth吗

见过 force sb to do sth 的用法。如： The doctor forced me to swallow a pill. 医生强迫我吞了一颗药丸。 They forced him to give them the money. 他们强迫他给他们钱。 请问：英语可以说 force sb doing sth 吗？

问题 作定语的现在分词与定语从句的转化（重点时从句时态）

...定语从句吗？转化后的定语从句谓语动词用什么时态呢？The first thing I became aware of was all the vivid colours surrounding me—purples, reds, oranges, yellows, blues and greens. 我首先注意到的是我周围那些鲜艳的色彩——紫色、红色、橘黄、明黄、...

问题 专有名词的所有格前可以用定冠词吗(2014高考陕西卷)

2014年高考英语陕西卷的第49题是这样的：49. Who found the O. Henry’s manuscript? 不明白这里为什么用定冠词。不是说，用了所有格就不能再用定冠词吗？比如要说 Tom’s father，不能说 the Tom’s father。求解释，谢谢！

问题 关于现在完成时在英译中的体现

The Fed said the US labor market has "continued to strengthen" and economic activity has been "rising at a strong rate".一种翻译是把现在完成时态翻译出来：美联储表示，美国劳动力市场已经“持续走强”且经济活动已经“以强...

问题 combined with 和 and 是否用于表示三者并列，同时出现是否重复

The sensory evaluation combined with NMR and multivariate statistical method all demonstrated that the effects of metabolite changes on food flavor could be analyzed more intuitively.combined with 和 and 是否用于表示三者并列，同时出现是否重复？metabolite changes是否应改成ch...

问题 how serious this was with/for sb 的区别

Mickey, we didn't know how serious this was going to be with your father. Mickey, we didn't know how serious this was going to be for your father. Does the second one make sense? I'm not sure what the difference is.

问题 从属连词的难点(单项填空题)

1. It seemed only a few weeks____he finished translating the long story.   A.since  B.till  C.after  D.before  2.  John plays football____ if not better than，David.   A.as well  B.as well as   C.so well   D.so well as ...

问题 because前直接加系动词的肯定式或否定式吗

1.It wasn’t because I didn’t play well.2.The cow doesn't know the music played by a man.在第一句里可以在because前直接加系动词的肯定式或否定式吗？在第二句里doesn't 和 played能同时放在一个句子里用吗？