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问题 to have been flying 和 to be flying 含义差别

The president was reported to have been flying across the Atlantic.这句话和The president was reported to be flying across the Atlantic.含义有区别吗？怎么样理解二者的含义差别呢？

问题 find oneself in...结构的in部分是什么成分？

Many a man in this community finds himself in need. 请问这种find oneself in need结构的 in need是句子的什么成分？

问题 定语从句和宾语从句的疑惑

My father has made me _____ I am. A. who B. which C. what D. that 这题选C，解释是因为没有先行词，但是me不是先行词吗，作为人理解，用关系代词who。而且在翻译是：我父亲让我成为我自己吗？

问题 as和because 的疑惑

One such idea is that fish is the best brain food. Fish is good brain food just as it is good muscle food and skin food and bone food. 这里面的as为什么不可以填because呢？

问题 所有格中的主谓关系和动宾关系

为什么a teacher's praise为主谓关系，而the king's praise为动宾关系？可以反过来吗？

问题 动词原形和不带to的不定式

请问这两个是不是一样的？夸克怎么一会儿说情态动词后面的是原型，一会儿又说到后面是不定式。

问题 虚拟语气主句和从句时态不一致的问题

If you needed some help, Helen is willing to lend a hand（网站上一位老师给出的例句）. 请问这句话主句里面用现在时是否合适？

问题 through 和 by 的区别

阅读题里的一句：_____ his research, Pearson(人名） is able to put dates to most of the breakthroughs that can be predicted.选through 还是 by，当表示“通过、凭借、由于（某种方式，手段）”时他们的用法区别是什么？望老师不吝赐教！谢谢！！

问题 through 和 by 的区别

阅读题里的一句：_____ his research, Pearson(人名） is able to put dates to most of the breakthroughs that can be predicted.选through 还是 by，当表示“通过、凭借、由于（某种方式，手段）”时他们的用法区别是什么？望老师不吝赐教！谢谢！！

问题 keep doing和have been doing区别

只是keep doing不能跟时间段，而have been doing可以跟的区别吗？

问题 如何区分形容词作状语和表语

My soul is exotic, mysterious, incomprehensible，different from others'. 老师，我想问的是像这种该如何区分形容词作状语还是表语，就是多个形容词连用没有and的时候，如何辨别是状语还是表语？

问题 句子成分分析和双重谓语以及复合谓语的问题

Everyone stood listening carefully怎么分析句子成分？双重谓语是复合谓语吗？两个有区别吗？

问题 stand和of介词短语

Please stand clear of the doors. This car will be departing shortly. 1)stand何时是系动词？2)本句stand是系动词还是不及物动词？3)of the doors怎么理解？它修饰的是clear还是stand？能否解释一下of的词义(这样有助于理解)?

问题 关于concept和notion的区别

比如：⑴ Americans do not understand how many false notions are put into people's head by American movies.⑵ It's necessary to get the youth to have a high ethical concept.

问题 关于融合性关系词和疑问词

老师们好，能否举几个例子：简单举一下运用融合性关系代词，疑问代词；融合性关系副词，疑问副词这四个的例句