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问题 怎么区分作状语的是现在分词还是动名词

Arguing that carbon dioxide is driving the small temperature variations in our climate as opposed to the oceans.句中 Arguing 是现在分词做状语还是动名词啊，怎么区分呢？

问题 非谓语动词在句中所充当的成分

What these camps offer is an opportunity to take part in activities，for example，horse riding and water skiing.这个句子中，动名词riding 和skiing充当什么成分？

问题 the question why...与the question that...

The question why rich countries should help poor countries is based on hunanitarian principles.问一下，why 是否可以改为that呢? 说它是同位语从句句意也说得通啊？

问题 请问have to在此句中的词性

I would have to say that is an 'L'-shaped bracket.此句中would是助动词，请问have to是情态动词吗有人说have to 是个词组，但它可以做实义动词，助动词，情态动词用，请问是这样的吗谢谢老师

问题 Supply 的单复数问题

...分单复数的意义何在？牛津词典上的例句：The water supply is unsafe.供水不稳定。Water supplies to the house are at low pressure. 这房子的供水水压低。

问题 请问日期（不是节期前后）前面可以用at吗

—When is your birthday?—At November 2nd.这是答案上给的用at。第一个问题，这个答案是对的吗？第二个问题，请问除了节期前后表达，几点几分，固定搭配at noon / at the table等，可以用at，还有什么情况下时间前面是用at的

问题 如何看待 as 过去分词 as 结构

Murphy’s point is that he was as snowed as anyone else by the promise of hemp as the Next Big Thing. as…as 比较结构一般是 as adj/adv as…，而这句却用了过去分词 snowed，要怎样分析？其中的 was 是系动词还是助动词？手机发帖，格式方面可能有问题，...

问题 before与until在高考选择题中的抉择

...何抉择？1. "Larry, I can't give you an answer before I think it over," said Joe.（before / until）2. You should put your feet in some warm water before you go to bed. （before / until）ps：以上两题，在语法上before与until我感觉都对，但是这个是选择题。...

问题 还是问last week作什么句子成分

...：Thank you for all your hard work last week. I don’t think we _______ it without you. A. can manage B. could have managedC. could manageD. can have managed记得前不久有位网友问过相似的问题，也是问 last week 的句子成分问题，当时有老师说它是定语，也有老师...

问题 add to that the fact that…是什么句式和什么用法

下面的句子有点奇怪，主要是指句首的 Add to that the fact that…，这是一种什么句式？属于什么用法？Add to that the fact that she’s incredibly wealthy, and it just doesn’t make sense. 再加上她非常富有的事实，这就实在讲不通了。

问题 定语从句中的短语动词介词提前的问题

He is the waiter to whom I spoke yesterday. 本句中 speak to 的 to 提前到关系代词前。 I know the boy whom you are looking for. 在本句中 look for 中的 for 为什么不提前到 whom 前面呢？ 谢谢老师解答。

问题 事物为主语谓语就一定要用被动语态吗？

用所给词适当形式填空。 Rice _____ in the south of China.(grow) 答案是 is grown 被种植。 填 grows 不行吗？可以理解为：稻子长在中国南方。 难道事物为主语谓语就一定要用被动语态吗？ 谢谢老师。

问题 请教弥尔顿失乐园里面的一句话

Long is the way and hard,that out of hell leads up to light. 长路慢慢且遥远，一出地狱即光明。请教that是否引导定语从句修饰way，out of hell在从句中做什么成分，谢谢！

问题 语法填空（涉及连用 if, when, after 的选用）

But the paradox is that our children can only truly succeed ______ they first how to fail. 答案应该填 when / if 但是 after 可以吗，有什么区别？when / if 在这里什么意思？

问题 the bus for Chicago中的介词短语作什么成分

老师请看下面例句：Is this the bus for Chicago? 在这句话中 for Chicago 是做的状语成分么？