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问题 He is working.是主系表结构吗

He is working.is 用来帮助后面的 work 来形成现在进行时，所以 is 在这里是个助动词。但解释为 is 是系统词，后面的 working 是表语似乎也说得通。那么这句话属于主系表结构吗？

问题 介词区别

介词about和on都有“关于”的意思，前者比较随意，非正式，后者比较严肃。of也可以表示“关于”，比如，有关雷锋的一本书a book of LeiFeng.请问在表示“关于”这个意思时of与about、on的区别？谢谢

问题 that引导的是主语从句还是定语从句

It is not nature that humans cannot command, but themselves.that所引导的从句是主语从句，还是定语从句？

文章 how about 和 what about 的用法

... that引导的宾语从句，其中that通常可以省略。例如：I’m not going. How about you? 我不打算去。你呢？（摘自《牛津高阶英汉双解词典》第8版p.1025）How about a break ? 休息一下好吗？（同上）How about going for a meal ? 去吃饭好不好？（同...

问题 两个英语疑问（定语从句that的省略以及现在分词与定语从句的转化）

...echnology have brought 中作宾语，那么 that 可否省略？ 2.This distrust is evident in the cartoon figure of the mad scientist working in his laboratory to produce a Frankenstein.请问句中，现在分词 working 可等价于从句 that/who works 还是 that/who is working？

问题 这是强调句还是主语从句呢

(  ) his work was still as it had been ?A.It was why that  B.Why is that   C.It is why that   D.Why was it that老师：答案选D.Why was it that his work was still as it had been ?= It was why that his work was still as it had been - 这是强调句。= Why his work was still as it had been ...

问题 是否缺少介词？

...; a committee hearing last month when he told parliament that his firm did not use any Facebook data. 请问老师，a committee hearing  前是否缺少介词？ accuse sb of sth。

问题 主语从句引导词

It is clearly stated on the bulletin that ______ the rubbish away at will will be punished. 这句话中为什么不能填who? 是因为不能表达"任何人"的意思？主语从句引导词为什么不能用who?

问题 曹老师麻烦再帮我解一下疑惑

It is fun to do /it is fun doingit is dufficult to do /it is difficult doing it is hard to do /it is hard doing it is easy to do / it is easy doing it is nice to do /it is nice doing 等等这种类似的句子，接不定式和动名词的区别到底在哪里？之前我以为跟时态有关，但...

问题 It is agreed that…与Sb is 

...老师不要烦我，谢谢啦）： It’s agreed that…与Sb is agreed that…应该是不同的。 It’s agreed that…中的it为形式主语，that从句为主语从句。 Sb is agreed that…中的sb为句子主语，that从句应该是状语从句，那它...

问题 would rather可以用于否定句吗

有人说 would rather 只用于肯定句，不能用于否定句：There is no other job I would rather do. 没有别的工作我愿意干。Kids would rather play than study. 孩子们宁愿玩而不愿学习。I would rather teach older than younger children.  我宁愿教大孩子不愿教...

问题 when引导的时间状语主语为什么被省略

When asked why he wanted to climb Mount Everest, the famous words of the British climber George Mallory were, “Because it is there.”请问，为什么when引导的时间状语从句中，从句的主语和主句的主语不一样却被省略了？不是应该保留吗？谢谢。

问题 英语里有VN及物 and VI不及物+介词+（VN和vi作用于同一个）名词吗

1.Above all they'll need great skills in leadership, so that their organisation can initiate and respond to change in a fast-moving world. initiate change，respond to change，英语里可以：VN及物 and VI不及物+介词+（作用于同一个）名词？ 2.And one more question in this secti...

问题 It is fun to do与it is fun doing比较

It was great fun walking along the streets, enjoying the relaxing atmosphere!请问句中的 walking 可以换成 to walk 吗？

问题 along可以吗？

A poor man found the purse near a shop ________ the way home.这里答案是on.老师，along可以吗？