问题 有关连词once引导的从句的省略

Once home, Olivia carefully bound the squirrel's leg so it could heal and got him milk from the ice box.请问老师：1 Once home，原句是Once she is home，省略she is，对吗？ home在be后面是副词作表语吗？2 once是表示时间的从属连词，引导状语从句吗？

问题 What time is it？（it指代什么）

What time is it？it是指代谁的，或者说它是为了句子结构的正确而加的一个主语可以不翻译it吗,it的这类用法叫什么呢？

问题 How little 的用法

MALE PROFESSOR: An-an-and if the two media have really different densities—like air and water—then most of the energy is gonna be reflected back; very little of it will keep going—uh, get transmitted into the new medium.MALE PROFESSOR: I mean, just think how little noise from the out...

问题 动名词的逻辑主语用 it 还是 its

I’m glad of its being over.这个句子的 its 用得对吗？好像在动名词要用 it 作逻辑主语吧，动名词前能用 it 作逻辑主语吗？

问题 think it good doing还是think it&

think it good doing和think it good to do哪个对？比如：I think it good doing it at once. 还是 I think it good to dp it at once.I think it good going without him. 还是 I think it good to go without him.

话题 it's

问题 在这个句型里，如何给动名词加逻辑主语？

It's worthwhile doing sth.It's worthwhile to do sth.在以上句型中，动名词doing sth和to do sth是真实主语，it是形式主语。如果，我要给上述句型的非谓语动词加上逻辑主语的话，It's worthwhile to do sth可以变成It's worthwhile for sb to do sth.那么现在...

问题 the strongest it's been 的语法分析

在外媒看到这样一句话：China's yuan is the strongest it's been in three years.  请问it's been 是什么语法成分？

问题 强调句判断（这是否是一个强调句？）

老师好：请教一下。It's an interactive feature that lets visitors key in job criteria such as location, title, and salary, then E-mails them when a matching position is posted in the database.问题：这句话是否为强调句，为什么？

问题 名词后面接动名词是复合结构还是动名词作后置定语

It is enough to search over the Internet and read thousands of stories of people trying to recover afer being cut on the operating table and who looked worse after the intervention.请教老师，1. people trying to recover… 是动名词复合结构；还是，trying to recover… 是people的后...

问题 has persuaded 和 are 谁才是谓语呢？ 还有，这里的语法成分结构怎么分析呢？

...own. It is the very strong link that attaches the individual to the whole. And man, subservient to interests he has persuaded himself are greater than his own, makes himself a slave to his taskmaster.老师：subservient to interests he has persuaded himself are greater than his own - 这里我不...

问题 在第一个句中what， when， that是什么语法现象划分句子？they 指代什么？翻译这两句话？

...ts mean when they say that the market is giving mixed Signals? It's understandable that people want to invest in Signal's record growth, but this isn't us. We're an independent 501c3 and our only investment is in your privacy.在第一个句中what， when，  that是什么语法现象划分句...

问题 it 用法的分类

it虽然简单，但概念比较难搞明白。比如： It is easy to do it. 一般认为第一个 it 是形式主语，第二个 it 是人称代词。 但是 it 用作形式主语时，它是人称代词吗？或者说 it 用作形式主语时，它算是代词吗？

问题 句子语法和意思(the amount to which)

Additional revenue could be generated by increasing the percentage of the payroll tax or the amount to which it is applied to employees’ wages and employers’ contributions.主要不理解粗体部分。

问题 for+名词是动词不定式逻辑主语吗

They say it would cost too much for the American economy to move away from using oil and other fossil fuels.这句的for the American economy应该不是动词不定式逻辑主语吧，我感觉像是状语修饰谓语，意思是“对于……来说”。