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问题 条件状语从句的用法（only if 不可以用as long as替代）

He will come only if you ask me him. Only if 不可以用as long as替代，因为动词ask和come并不能延续很长时间。请问老师这个怎么理解？

问题 what在句中做什么成分(为什么not可以否定它)

You fail to recognize that it matters not what someone is born, but what they grow to be.这里面的you are to recognize是主谓宾，that和but引导的并列宾补，我理解的对？what 在句中做什么成分为什么not可以否定它?

问题 end up done的用法疑问

... million years.MALE PROFESSOR: But observations of other star systems indicate that a disk's gas disappears more quickly than that.MALE PROFESSOR: Whatever's not drawn into planets ends up dissipated and evaporated by solar wind and radiation, from nearby stars.MALE PROFESSOR: ...

问题 but与while区别难点

My wife likes to spend his holidays doing shopping, _______ I like to drink with my friends in my spare time. 此题的答案是while，请问可以填but吗？在这样的句子中but与while有什么区别？

问题 貌似宾补的句子成分分析

下面句子中的shut 是什么成分？是宾补吗？The woman slammed the door shut in my face. 这个女人当着我的面砰地关上了门。另外，这个 shut 是形容词还是过去分词？

问题 有关现在分词短语的问题

...好：请教一下。例：Mostpeople seem to have more bad dreams early in the night, progressing toward happier onesbefore awakening, suggesting that they are working through negative feelings generatedduring the day. 这两个现在分词短语“progressing....”“suggesting ....”...

问题 have（表示"有"）能否用于现在完成时

Everyone in England has had some kind of education. 记得老师曾说过：静态动词通常不用于完成时态的，但这里的 has had 怎么又用了现在完成时呢？

问题 形容词做状语

Unless a certain amount of time is allowed to elapse, it seems in their eyes as if the task being considered were insignificant, not worthy of proper respect. 这句中not worthy of 怎么理解啊？是not being worthy of proper respect这个形式的省略吗？是做状语吗，

问题 ought to的宾语

Alan," said Hughie in a bad temper," and not have let me make such a fool of myself."not have let me make such a fool of myself 中的 not 是否定 have 吗？这半句是做ought to 的宾语吗？ 

问题 什么时候用将来完成时

...来时呢？Overweight children and teenagers aged between 5 and 18 in the Chinese mainland will reach 48.5m by 2025.所以想知道什么时候用将来完成时。还是说这个句子两种时态都可以。

问题 anywhere else 的修饰关系分析

If he goes to the bank or anywhere else to change this big note, the police will put him in prison.老师，else 是修饰 anywhere.它们一起修饰后面的不定式短语吗？

问题 less than在句中作什么成分

Your sister will be here in less than an hour.less than在句中作什么成分？less是形容词还是副词？than是介词吗？

问题 主语从句与其谓语的单复数问题

Less clear is whether this finding was true in 2010 and whether it was or still is true of younger children.请问这个句子系动词难道不应该是are 吗？

问题 being developed的用法

Even now, there are technologies being developed that can care for crops on a plant-by-plant basis or control the grazing of cattle without physical fences, and by 2040 this technology will be commonplace in farming.请问being是修饰technologies吗？

问题 can't与couldn't

老师请教您一个问题:—She must be in the dormitory now.—He _______ be there.答案是can't, 请问为什么couldn't不可以呢 谢谢老师！