问题 关于对现在的虚拟和陈述句过去式的区别

请问老师，在这句话中We kissed and hugged real tight as if we did for the first time. It wasn't the first time though. 这里因为后面一句话很明显是as if引导的虚拟语气，也就是did在这里是虚拟的形式。但如果不考虑语境，只看语法，did也可以理解...

问题 请分析decarbonize 的构词逻辑

Moving goods and people around the world is responsible for a large part of global CO₂ emissions(排放). As the world races to decarbonize everything, it faces particular problems with transportation — which accounts for about a quarter of our energy-related greenhouse gas emissions. Here’s t...

问题 祈使句+and+陈述句（主语不是人）

“祈使句+and+陈述句”是常用的句式，据我发现这类句子中的“陈述句”中的主语总是“人”(sb)。比如：1. 陈述句的主语是 you：Work hard, and you’ll succeed. 努力干吧，你会成功的。Go at once, and you will catch up with them. 快去，那样你...

问题 can, and has用法

However, our fascination with the latest, and our under-valuation of what has already become common, can, and has, led us in all sorts of wrong directions.1）这里 can, and has这里的句子成分是插入语吗？其中的逗号是否可以去掉？可以的话，去掉和不去掉的区别...

问题 分析：How different life now is than what it was 30..

请专家分析一下这个句子的结构：How different life now is than what it was 30 years ago! 

问题 Between and 的用法

老师，最近看到这样一句汉译英：卫星用于美国与英国、法国、意大利之间的通信。This satellite is used for communications between the United States and Great Britain, France and Italy.后面的and使用会不会有歧义？

问题 It is responsible of / for sb to do sth的用法疑问

有咱们答疑网上看到一个问题是关于irresponsible 的用法：It is irresponsible of sb to do sthIt is irresponsible for sb to do sth参见：http://ask.yygrammar.com/q-26640.html我想请问一下，如果是 responsible 呢？怎么用？It is responsible of sb to do sthIt is responsib...

问题 there is sb/sth doing sth 以及 It is sb/sth doing sth 分析

There's a van stopping outside. It's someone delivering something.请教老师，这里的现在分词形式在句中各自作什么成分？其两个现在分词短语（非谓语形式）是否实际上是某句子的的缩略？ 盼专家老师详尽指导分析，谢谢。

问题 It was time that...句式中的that是引导什么从句

I decided that it was time that I became an Internet user.“time”后面跟的"that I became an Internet user"是做定语从句吗？但是为什么感觉that 没有在从句中充当任何的成分。

问题 不定式与动名词作句子真正主语的区别

It's no pleasure looking through these any longer because nature is one thing that really must be experienced.问：此句中句型“It's +n.+doing sth.”,有没有“It's +n.+to do sth.”的句型？另外在此句型中什么时候该用doing sth 作句子主语，而什么时候又该用to do ...

问题 It’s fun 后接不定式或动名词

问题 It is you that is/are...(强调句谓语用单数还是复数)

看到这样一个强调句：It is you that is to blame.很明显，这里强调的 you 是作主语吧！为什么后面的动词用单数 is 而不是复数 are 呢？ 

问题 第三、四段用 Paragraph 3 and 4 表示对吗

我在《陆谷孙》找到了pages 3,4 and 5，在《韦氏》找到了chapters 10 through 20，所以我想Paragraphs 3 and 4是对的，但是我在一些百科和听力例句里看到了类似 Paragraph 3 and 4和Grade 5 and 6的表达，最近我还看到了 on Saturday and Sunday morning...

问题 instance后接定语从句用where与when引导

...。比如：Describe an instance where you set your sights on a high / demanding goal and saw it through completion. 请你举一个具体的例子，说明你给自己确定了一个很高的目标，然后达到这个目标。He cited an instance where a girl had grown frustrated over her inabilit...

问题 分析:I hate it when they talk with their mouth full

I hate it when they talk with their mouth full of food.老师，帮我分析一下。