问题 句中的although是否要删去（因为后面有but）

... that he has responsibility to fulfill in the real world and it is not the time for him to rest.请问：句中的although是否要删去（因为后面有but）？

问题 助动词have和助动词be不能连用

在《新英语语法教程》（何桂金，高纪兰，第一版）中看到有下面的说法：助动词have和助动词be不能连用。但I have been doing it for a long time. She has been a teacher for 30 years. It has been stolen by a boy. 应该都是have和be连用吧？谢谢！

问题 “逗号+with”的句子问题

老师您好，求助老师关于“逗号+with”的句子问题。Despite this characteristic, the most common drawback for any PD controller, with unknown dynamics or even with unmodeled dynamics is the error signal differentiation. 句中为什么用逗号和with将主语和谓语隔开？...

问题 不定式的动态和静态

不定式表示的时间是谓语之后，那还涉及动词的动态和静态吗，这里还有怎样的辩证关系，请老师帮忙解答。谢谢。例如，The plan to build a new bridge has to be postponed.to build是静态的不定式吗，表性质或状态吗。是不是表性质或状态...

问题 关于非终结延续动词的现在完成体与持续时间状语连用

...成：They have been talking to him since morning.吗？非终结延续性的动词（完成体）与持续时间状语连用能表示一个动作从过去开始一只延续到说话时刻吗？是表示事件意义吗？与完成进行体可以互换吗？

问题 现在分词在句子里的成分

She was at the table working hard.此处working是做什么用的，我为何觉得这个句子有点颠倒呢？she was working hard at the table.这样写是不是比较顺呢?

问题 deliver sth to sb in some place中的介词用法问题

...地点）。我的理解 是把日记传给我在葡萄牙，in portugal是定语修饰me还是状语修饰传递的动作呢？

问题 rather作为副词可以修饰褒义形容词吗

...贬义形容词,即使是修饰中性形容词，也往往表达出贬义的含义。不过，在看一个ted演讲时，我看到演讲者使用了“rather remarkable”这个表述，根据上下文，这里的rather remarkable，应当理解为“相当了不起”，即，是一个表达褒义...

问题 如何理解As well as can be measured?为什么可以不加主语

...ving improved in the Fifth Reign. But the statistical averages mean little when measured against the harsh realities of peasant life.句中的as well as 后面为什么没有主语？如何理解as well as 在这里的意思？

问题 (have,get,make,leave,let)这些词作使役用法时有区别吗

1.He could not make himself understood. 2.Is it possible for me to withdraw one thousand US dollars and have them changed into RMB? 像这样的例句中，make/have都是 使，让 的意思，它们有区别吗？几个使役词可以互换吗？

问题 同位语的问题

请问老师：1、My teacher Joe is a very nice person.Joe是my teacher的同位语，Joe可以看成是句子主语吗？2、Joe，my teacher，is a very nice person.这句话的主语是Joe，my teacher不可以吗？2、They will finish the project themselves.反身代词themselves是they的同...

问题 end up done的用法疑问

MALE PROFESSOR: A major problem is that gas giants like Jupiter and Saturn would take too long to form through core accretion.Core accretion would take several million years.MALE PROFESSOR: But observations of other star systems indicate that a disk's gas disappears more quickly than t...

问题 There is a limitation on what he can see .请问一下可以帮我分析一下这个句子吗？就是他的句子类型和介词的位置用法

问题 一般现在时的用法

老师好，        请看朗文name词条下的两个例句        He was named after his father.        The street is named after the famous South African leader, Nelson Mandela.         请问老师，第二个句子用一般现在时的理由是什么？        那下面get...

问题 句子成分和修饰关系

...还有，介词短语at police headquarters是做地点状语还是后置定语？谢谢老师!