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问题 have there been serious attempts to是什么时态？怎么理解？

Only in the past few years have there been serious attempts to test these ideas.

问题 关于疑问句的状语从句的省略

The problem confronting terrestrial snakes is best illustrated by what happens to sea snakes when removed from their supportive medium.请问各位老师状语从句的省略是要求状语从句逻辑主语与主句主语要一致?这边的when引导的状语从句 sea snakes被省略了但是前...

问题 sports meet, Sports Day(运动会)的区别

It’s Sports Day next Thursday, isn’t it?The Sports Day is coming soon, isn’t it?句子来自2019版人教版高中英语新教材必修一的 Unit 3（p40）。请问Sports Day与sports meet的区别是什么？

问题 非限定性定语从句中关系词可以省略吗？

... which）从句可以省略that 和in which，那how呢？比如：this is the way how they treat me.这是我造的句子，对吗？如果对是否可以省略how？英语小白不胜感激

问题 限定词的分析问题

向尊敬的曹老师请教例句：1、There is such an apple on the table问题：请教曹老师，以上例句按照现代语法分析，such为限定词，修饰apple； 如果按照传统语法分析，应该分析为形容词吗？ 如果是形容词，是不是也可以改写成an such apple...

问题 持续时间状语和时间位置状语区别

例如：He will repair the car in 3 days.老师们，学生一直有个疑问，即，这里repair为延续性动词，如果把in 3 days翻译为“在3天时间之后。那么，该句子意味着延续性动词repair在3天后那个时间点开始。但是，学生一直不理解的是，不是...

问题 关于all做主语时谓语动词用单数还是复数的问题

All we had left were the clothes on our backs.all作主语时指人谓语动词用复数，指物谓语动词用单数，教材上这句话all应该是指物吧，为什么用were不用was呢？

问题 check后的“是否”用that还是if/whether

...如何时，check后是要接that引导的宾语从句，还是接if, whether引导的宾语从句？如下面这个句子：We had better check that all the doors are locked. 我们最好检查一下所有的门是否都锁上了。这个句子中的 that 可改为 if 或 whether 吗？

问题 There has been very little rain现在完成时用法

-What is the weather like here this summer？-There has been very little rain.回答为什么用现在完成时？这是哪个用法呢？

问题 no more difficult=not more difficult吗

在资料上看到这样一句：Selling goods abroad is no more difficult (=not more difficult) than selling to the home market. 做外销并不比做内销难。能说 no more difficult=not more difficult吗? 这样一来那不是 no = not 了？

问题 有关形容词+to do不定式结构的疑问

My dream is hard to come true.  这个句子正确吗？请附以相关例证。因为想起平时常见到在这种结构的不定式与句子主语有动宾关系，如The question is easy to answer.谢谢专家老师。 

问题 how my studies中的how作什么成份

But then I remenbered how my studies had been concentrated on geography, history, artimetic, and grammar, and I told the little chap that I did not know how to draw.请问老师how my studies,  此处how作什么成份，能换成that吗？

问题 We'll find where he is. 从句分析

We'll find where he is.where不是相当于in the place吗?  那它为什么是宾语从句而不是状语?

问题 mind doing sth 与 mind having done sth

He didn't mind getting the job.其中的 mind doing sth 可以像 regret, remember, forget 一样换成 mind having done sth吗？（在肯定句和疑问句中）

问题 简单句的虚拟语气问题

.../ could / might / should + 原形动词。如：Would you mind my shutting the door?  我把门关起来你介意吗？You should always learn this lesson by heart. 你要把这个教训牢记于心。I should agree with you. 我应该同意你的观点。这样的简单句算是虚拟语...