找到约 40000 条结果

问题 nevertheless和however区别

He is faced with a lot of difficulties,________ he will never give up.A while     B besides      C nevertheless    D howevernevertheless和however都可表示转折，这里选哪个？为什么？

问题 例句分析中的that以及there is a need

It is increasingly obvious that the planet’s ecology is breaking and there is a need for an intense and global effort to halt and reverse these dreadful trends.”that…breaking是引导主语从句吗？there is a need for ab to…的for an to…都是后置定语吗？

问题 That is用法

That is通常是作为插入语，前后都接句子吗？

问题 while做并列连词时前面必须有逗号吗

She thought I was talking about her daughter, while in fact I was talking about my daughter. 这是卷子上的一个句子，句子能看懂。请问老师 while 前面必须有个逗号吗？查了几个句子都有逗号。谢谢老师。

问题 more than只是用作副词而没有比较意义吗

My trip to Beijing was more than sightseeing.He was more than pleased.He gave me no more than $500.这些句子中 more than 整体视为副词而没有比较级的意思，对么？

问题 as if 是否是虚拟的问题

After the interruption, the speaker went on talking as if nothing had happened.When I told them my plan, they looked at me as if I was mad.请教老师这两句话是虚拟吗？是不是如果主句是过去时，as if 是否是虚拟看不出来？谢谢！

问题 Now is the time. The time is now. 两句的now都是名词词性吗？意义区别是什么？

两句的now都是名词词性吗？意义区别是什么？

问题 为什么这里填is believed to have been而不是is believed to be

1. 我觉得这里填is believed to be也非常可以啊，为什么一定要用完成体呢？2. 就是如果be动词的完成体have been后面没有跟持续时间，我就不是很能理解这种用法的意思。就是比如：She has been a teacher for ten years.这种后面跟了持续时间...

问题 定语从句中可以省略which is的情况

it was a storage jar made of earthenware, no doubt discarded because a break had made it useless.这句中连接词是什么？是which is的省略吗？定语从句中可以省略which is的所有情况，以及非限定中可不可以省略which is？

问题 what is he + 不定式 表达的含义是什么？

What is he to give himself such airs.What is sb 表示某人做什么工作， 在上句中， what is he 是表示他做什么工作的意思吗？

问题 情态动词后面可以加doing 吗

... aware of the impact they have or the fact that taking them in combination with other medication with other medication might put you at risk for something that you wouldn't otherwise being countering or be at risk for.这句话中后半句wouldn't这个情态动词后后面为什么加being，怎么...

问题 代词的主格和宾格

请问老师在这句话中: Who is more important to you, her or me?中为什么用宾格her和me呢？这句话中who不是作主语，所以不应该用she和I吗？

问题 独立主格结构

You having finished your homework, i can play with you out. 请问这句话是独立主格结构吗？

问题 比较结构的语法问题

1. 麻烦问一下 what A to B is what C to D 这句话语法有没有正确，如果正确，这句话是怎么样一个语法结构？2.  还有 what C is to D, that A is to B 中that是否可以省略，这句话是什么一个结构？3.  Just as C is to B，A ...

问题 这是强调句型is it that 的特殊疑问句吗

这里where is it written that life is fair？是强调句型is it that 的特殊疑问句吗？written 是什么成分呢？