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问题 greening 的词性和用法如何分析

The greening of planes, trains and automobilesMoving 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 en...

问题 come up with 后面能不能跟动名词

如题 come up with 后面能不能跟动名词，还是说只能跟名词或代词Psychologists at the University of Texas have come up with keeping girls from developing eating disorders 这句话是有语法错误的对吗? 谢谢老师！

问题 独立分词结构中用过去分词与现在分词完成被动式的区别

独立分词结构“名词+分词”作状语:All fights having been canceled because of the snowstorm, we decided to take the train.黑体部分为什么不是直接 canceled?

问题 现在分词完成式的被动形式与过去分词作原因状语的区别

 Warned (warn) several times,they became more careful in doing the job.为什么不是Having been warned？

问题 agree upon/on/about/to/with ?

She wants to know whether the measures have been agreed ( ).A. toB. withC. aboutD. uponE. over答案是D.upon (=on).  但是我很奇怪和不解：A. to,  B. with,  C. about - 这3个选择不也可以吗？

问题 not counting还是not to count

There are only ten apples left in the baskets, _______the spoilt ones.A .not counting B.not to countC.do not count D.having not counting为什么不选B?不定式作状语也可以表示条件啊，与现在分词有什么区别？

问题 Whatever与Whichever在高考题中的用法区别

____ one of you breaks the window will have to pay for it. (2013年江西高考)A. Whoever    B. Whatever     C. Whichever    D. Wherever请问这道题的答案是C，为什么不能选B呢？

问题 请问这里为什么使用完成时

...inished reading it.2.The project will not start until all the preparations have been made.请问这两个句子为什么填完成时，尤其不懂第一个，虽然书上说在条件句里现在完成时可以替换将来完成时，但是不清楚为什么用现在完成时，难道不可以用一...

问题 关于人教社的一道时态习题

She ____ (see) the newspaper on the table this morning, but she _____(have) any time to read it yet.参考答案只有saw, 但是，我觉得has seen完成时也可以。可是，有人认为只能是一般过去时，难道因为后半句的一定说明说话时间已不在this morning?上午看到...

问题 at的用法

I found him at his books in the library. 请问：句中的at是什么意思？

问题 分析句子成分

I believe what you said to be true.宾语从句what you said是做belive的宾语吗？to be true是做宾补吗？

问题 句子分析

You getting on well with Chinese study is what I am hoping eagerly for.标红的是什么结构？我感觉是独立主格结构，但是独立主格结构只能当状语，所以判断不出这个用法，希望各位老师能解答一下

问题 Whatever的成分

Whatever decision he made I would support it.其中连接代词Whatever在句中是做什么成分呢，引导的是什么类型的名词性从句呢？

问题 关于从句谓语疑问

I think what impresses me about his painting is the colours he uses. 我怎么也理解不了这里的think接的是主语从句。

问题 ​be动词后加副词

be动词后可以接副词，比如 I am here, 除了这类方位副词外，be动词后的副词还有哪些？