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问题 请教尊敬的曹老师：一般现在时表示过去时间的用法与转态动词自己使用自己的疑问

...在时表示过去时间有两种情况。第一种情况是表示不确定的过去时间,即用一般现在时来传达过去发出的信息,一般只限于为数不多的几个动词。例如:1、Alice tells me you are entering college next year.2、The ten o'clock forecast says that it is going ...

问题 什么时候用don't什么时候用not ?

Cathy told me don't/not to stand up.这句话中间应该用哪一个呢？为何如此？

问题 句首的连词Or是什么意思

Or so the thinking has gone since the early 1980s, when juries began holding more companies liable for their customers' misfortunes.自二十世纪八十年代初以来这种想法就已经出现了，那时陪审团开始让更多的公司对其顾客所遭受的不幸负责。请问句子中...

问题 涉及比较级句式的选择题

一道专四的练习题:Some companies have introduced flexible working time with less emphasis on pressure _________.A. than more on efficiencyB. and more on efficiencyC. and more efficiencyD. than efficiency答案是B，帮我分析在句式上为什么A、C、D不可以？Thank you in advance!

问题 remember的时态疑问？

... "If I had any parents to mention they went over the divide about the time I gave my first bleat. What is the plan of your round-up?"从我记事以来，我从没当过任何人的儿子。1)为什么remember是一般现在时？2) any that I remember of - any that 作何成分分析？...

问题 口语中助动词当谓语用(You're about to.)

you don't know me，You're about to. 这里的about to是助动词, 为什么可以当谓语？

问题 请问“系表为谓”怎么理解

看到很多强调句都是 it is +adj+ that ... 通常 that 不是作为陈述句的引导词 或者 代词 比如：It is Jack that breaks the cup.通常我把这里的 that 作为代词理解。it is +adj+ that ...这里的that如何理解呢？算是系表为谓吗？

问题 sb is hurt to do sth的句型举例

国内出版的书认为可以说 sb is hurt to do sth：He was hurt to find that few had voted for him.他发现很少有人投他的票.感到痛苦。She was hurt to find that no one admired her performance. 她发现无人赞赏她的表演而感到伤心。但在原版词典中没有找到类...

问题 never before的用法问题

请问老师:在Never before has this city been in greater need of modern public transport than it is today中，为什么用现在完成时.而在Never before did I see such a terrible car accident on the road中却用一般过去式。它们同样都是Never before开头，都是以前从没有…...

问题 so that 和 unless 的用法疑惑

The chemicals in cola will be bad for your teeth _________ you clean them carefully.A. unless B. so that C. when D. although 请问B，这里为什么不可以选？

问题 不及物接同位语从句疑问

The story goes that William killed his wife. 为什么goes不及物可以接从句？

问题 宾语从句退时态问题

如题，求教宾语从句退时态问题，谢谢！比如造句：我想他以前是个老师；我自己写了2个句子如下I thought that he was a teacher.I thought that he had been a teacher.

问题 动名词后接宾语的问题

...omework. 有些要接of,如：understanding of the problem, a wasting of time. 有些又不能接宾语，如：reading,finding. 学生在这里想问，当看到一个动名词doing时，我们如何区分该doing属于以上哪种情况？（即能不能直接接宾语或者接of 宾...

问题 请老师帮忙分析一下这个句子，特别是这里的这个""do""

Any kind of camera will do that has a shutter that can be made to remain open for a time exposure. 

问题 hire 和hiring

...lly cheap! 曹老师好，请教您以下问题：1.1）    hire 可以用hiring吗？for后面通常是动名词？其次2）除了用hire可否用rent？二者有何区别？2.        You have them at home 中的them 可否去掉？3.        最后一句what是融合性关系代...