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问题 out at sea是形容词短语吗

I thought I heard the sound of guns out at sea.out at sea是形容词短语吗？还是 out 是副词，at sea 是介词短语？out 修饰 at sea 吗？还是 out 是地点状语……这些句成分如何分析好些？

问题 现在分词前用不用逗号的区别

They came into the classroom, surrounding their teacher.He saw a man coming towards him.老师您好：这两句话我有两处疑问。① 为什么一个加逗号，一个不加呢？② 这两句的非谓语：surrounding their teacher 以及 coming towards him  动词用ing形式到底...

问题 as 引导的事时间状语从句还是原因状语从句

As we joined the big crowd, I got separated from my friends.as 这里引导的是哪种状语从句？我个人是觉得原因状语从句，因为我们加入了拥挤人潮，所以我和朋友被分开了。

问题 a course to assist中的to是副词吗

a course to assist adults to return to the labour market成人重返劳工市场的辅导班老师，a course to assist，to是副词吗,什么用法？

问题 非谓语短语动词的相关逻辑关系

I couldn't help laughing.You finish reading the book.I practise running every morning.I enjoy listening to music.老师，这样的句子对吗，如果动名词是不及物动词呢，为什么I need to sleep.不定式的逻辑就通，动词名一定要及物动词的吗？英语的逻辑思...

问题 because if...分析

...种什么语法现象？He had to stop talking because if he’d kept on, the stuttering would have started. 他不得不停止讲话，因为如果他继续下去，口吃就会发作。I didn’t give my name because if I did I thought you might not have come. 我没有留下我的名字...

问题 表示职位的名词前面加不加介词的问题

A supporter of Julius Caesar, he was appointed one of the triumvirate after Caesar's murder.通常我们都知道sb be appointed as ...为什么这里as省略了呢？

问题 die fighting 这个词的fighting是什么词性?

比如 They prefer to die fighting rather than ....         Died fighting on the battlefielddie是动词,fighting是名词吗?        

问题 定语从句中，关系代词that和who如何辨析？

Granted, you're not the pronunciation expert that I am. But you have been speaking English longer than I have.上句中的that I am 定语从句不可以换用who作关系代词吧？为什么呢？

问题 这句话的结构很难理解

But the winner-takes-all nature of technology markets means those that succeed often do so extravagantly.老师您好，这句话的主语是winner-takes-all nature谓语动词是means 宾语是一个those作先行词，that引导的定语从句，且到succeed戒指，那如果这样理解的话...

问题 不定式做宾补还是目的状语的区分

There are social media distractions on the same machine that they are supposed to be using to do their work.请问老师to do their work是做宾补还是目的状语？有没有区别两者的好方法？

问题 see sb as doing sth中的as

He saw himself, perhaps, as inviting his students to start an exciting voyage into an unknown world invisible to the eye.这句话中的as是什么意思呢？可以去掉吗？

问题 whether to be hopeful... 这里是否可以省略

曾看到这样一句话：The principal’s inbox has been flooded with emails from students wondering whether to be hopeful about a new teacher. whether to be hopeful... whether后是否有省略，可不可以这样用呢？

问题 介词短语作状语的翻译问题

...师您好。在以下例句中：National spending on social sciences and the humanities as a percentage of all research and development funds varied from around 4% to 25%.其中from around 4% to 25%是修饰varied的状语，状语在修饰谓语动词时都要翻译在动词前面吗，还有例...

问题 过去分词和being加过去分词，意义上有什么不同

请问老师这句话，to everybody's surprise, the meeting ended, with nothing settled. 为什么不可以写成 being settled的呢？这个也表示被动，请问有什么区别吗？谢谢