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问题 动名词用法（worthwhile doing/ forget doing）

...thwhile saving.这个句子对吗？一般不是说worthwhile, 只有用在it做形式主语的情况。 2， Forget doing something.[means" Forgot that I did"or " That I should have done"]，后面一种理解不应该是forgot to do. ？。 以上观点都来自夸克，语法大全。

问题 可以把第二个不定冠词改成定冠词the吗

It is a world of wonders,a world where anything can happen.可以把第二个不定冠词改成定冠词the吗？

问题 不定式做目的状语的判断

...he slight movemnt that betray the presnece of a predator  long before it's close enough to launch an attack.请问老师to launch an attack.是不定式做目的状语吗？ 可以enough to一般不都是结果状语吗？He has never managed to get enough money to have the church clock rep...

问题 on a cheque此处用by替换可否

there is a very firm rule that the bank has no right or authority to pay out a customer's mony on a cheque on which its customer's signature has been forged.请教下，红色部分用by cheque是否可以？谢谢！

问题 talk about in terms of介词连用

I know they are two different countries, I was talking about in terms of interior design.话题是装修风格，A后半句说他讨论的是英式风格和意式风格的区别，为什么这里about和in terms of可以连用？是否about后少了一个it？

问题 长难句句子成分分析

That is why it is such bad news that people’s long-term inflation expectations have recently risen noticeably, according to a survey of consumers by the University of Michigan. （1）请问加粗的从句中 “that people’s long-term inflation expectations have recently risen noticeably”是...

问题 直接引语没有引述动词对吗

...y to go to college, but no one told me I could except you. Now I have made it.”这是完形填空中的一句话，请教老师，最后一句没有引述动词，这样对吗

问题 过去完成时如何表达“在过去的几天”

...在过去的几天”？如：He said that he had learnt something about it in the past few days.这里能用in the past few days吗？不能的话如何表达“在过去的几天”呢？

问题 This disease needs an operation to cure不定式的问题

This disease needs an operation to cure.这里 to cure 能否写成 to be cured? 语法书上好像说不定式在有些情况下是可以主动表被动的，好像是跟逻辑主语有关系，这个句子能否用被动式写 主动式和被动式的逻辑主语都是什么？能否请老师总...

问题 限定分句作主语的句子改为一般疑问句时是否采用形式主语的问题

...动词+确认性表语例如：How she escaped is the question we ought to be addressing.如果这个句子采用一般疑问句结构，必须采用形式主语吗？

问题 向曹老师请教被动语态的含义

...语态两个概念，而且过去分词是做非谓语成分的，这句是be助动词+动词-ed。我的理解2：A car knocked him down, 你说这个动作完成了没有？完成与否与语态无关！因为说话人关注的时间再怎么变化，事件、习惯、状态就是那样的。我...

问题 做状语表条件或原因时用不定式的疑问

...能用现在分词。这一点学生没有疑问。例句2：George must be a fool to behave like that.根据上下文，可能含义为:要是乔治那样表现，那他一定是个傻瓜。——条件乔治一定是个傻瓜，才会那样表现。——原因学生的疑问是，这种句型里...

问题 “跑出门”的奇怪表达

She grabbed her bag and ran out of the door. 她抓起包就跑出门去。英语可以这样说吗？“跑出门”可以说成 run out of the door 吗？out of 的意思应该是指从里面到外面，难道我们是从“门里出”跑出来吗？其实我们是从屋里经过门而跑出来...

问题 有必要把cheered改成cheering吗

Laughing and cheered, we eventually reached the summit.答案是改成 cheering，我觉得答案错了。这句话的开头是现在分词结构吧，不是名词的结构，怎么会变成 cheering 呢？ 

问题 长难句分析1

Herdsmen and hunters have also long observed that grazing animals often tend to align themselves facing either north or south, which the researchers suspected was in readiness to escape in either of those directions should a threat emerge.请问：如何分析与理解粗体部分的从句呢？