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问题 除祈使句还有哪些可以没有主语

By helping them develop classic skills that will serve them well no matter what the future hold. 这是2014年的全国一卷的一句话，为什么没有主语呢？

问题 嵌入式定语从句

This is the book which/that I think is useful for my English study.在我自己学习的过程中，得知这是一种特殊的形式叫做嵌入式定语从句，但是看了一些语法书和材料，我自己脑子里的概念非常模糊，请教老师们能不能用最简洁明了的语言讲...

问题 短语动词后面的宾语是动宾还是介宾

请问老师短语动词后面接宾语时，这个宾语是动宾还是介宾？如果短语动词被理解为：不及物动词+介词相当于及物动词，那么后面可否接that引导的宾语从句，或者to do作宾语。期盼您的解答，谢谢！

问题 动名词和现在分词具体用法

Even the Ontario Community Council has determined that lowering the BAC would mean more work for police and the courts.  blood alcohol concentration (BAC)这个是专用名词。请问下lowering 是什么词性和成分  谢谢

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 pineapple谓语单复数疑惑

网上看到一篇文章，pineapple后面用了复数谓语were，请问老师这是对的吗？Did you know that pineapple were named after pinecones? The Spanish called pineapples the 'Pine of the Indies' because they were both hard and spiky.

问题 only用法的一个重大疑问

我对下面这句不太理解，重点是括号内的解释不太理解——此句摘自夸克《英语语法大全》p829:The situation is only [即：merely] that (he’s thinking about marrying a fellow doctor). [即你不可以为，比方说，他是在为一个疑难病人操心]

问题 cause用法疑惑

The worst misfortune you can suffer is one that you caused yourself, especially when it hurts those close to you.请问老师：定语从句you caused yourself中，结构是 you caused one (the worst misfortune) yourself，还是 you caused yourself one (the worst misfortune)？或者两种分析...

问题 不定式的作用判断

Just as there can be culpable omissions, so too can there be blameless acts. Suppose—to take an example from the moral philosophy books—that a man stands to gain from the death of a certain child. 请问不定式在这里的作用？

问题 to的用法

But as TechRadar noted on Tuesday, there are a few catches-namely that Moflin's 5-hour battery life doesn't really hold up to, say, a cat's "battery" reserves.这句话hold up to怎么理解，这个to是相对于意思吗？，这个say是插入语吧，怎么会插在这两个词之间，感觉很...

问题 请帮忙修改润色一下这段译文（中译英）

...文化去跨越蒙昧，驱除黑暗。我的翻译：Years, non-stop rotating growth rings, in the east of Wusuli River, west to the Mudan River, south from Khanka, and north to vast land of Sanjiang Plain, Jidian locals depicted a bright blueprint with sweat, blood and wisdom of boths hands. In th...

问题 如何理解 learning as much from each other as from their teachers

Cambridge attracts the best students and academics because they find the University and the colleges stimulating and enjoyable places in which to live and work. The students are thrown in with similarly able minds, learning as much from each other as from their teachers; the good senior academics kn...

文章 much, very much 和very 表示“非常”“十分”用法比较

... mistaken 前面，much 和very much都可以用，但是不能用very ：That’s Alice, unless I’m (very) much mistaken . 那人就是艾丽斯，除非我（完全）搞错了。（不能说：... unless I’m very mistaken.）（《牛津英语用法指南》第四版96.8节）very, very much ...

问题 现在完成时的否定怎么用？

...。 我希望我这次考试可别不及格。 I hope i don't fail in the exam. 这是我写的。 I hope i have not failed in the exam.这是书上原句。 我为什么想不起用完成时呢？因为我只是知道 肯定是 翻译成 已经， 否定时 翻译成 还 老师和我...

问题 make up one’s mind后面可以接带疑问词的不定式吗

make up one’s mind 后面可以接不定式。如：He made up his mind not to say a word. 他打定主意一句话也不说。In the end he made up his mind to go by train.  最后他决定坐火车去。Arriving there, he made up his mind to go in. 到达那里时他决定走进屋去。这...