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问题 for whom是引导定语从句吗

The effect was especially pronounced for lower performing students, for whom exposure to struggling stories led to significantly better science-class performance than low-performing students who read achievement stories.这个句中的for whom是引导定语从句吗？我理解whom是exposure的定...

问题 何时谓语可以用完成时时态

... this morning, but nobody answered it.—Oh, we were doing some running in the park答句的谓语were doing可以改为完成时have done吗？因为现在完成时暗含着对现在造成影响的隐含含义，即正因为我们在公园跑步的这个影响所以我们才没有接到你的电话...

问题 no less...a...的搭配对吗

It is no less a person than the president.A dolphin is no less a clever animal than a dog.在这些句子中见到了限定词no后和冠词的搭配，觉得奇怪，因为在no such... 后一般直接跟名词，不用冠词的。为什么上面的那两个句子中却在no后有冠词呢？敬请...

问题 非限制性定语从句前面有逗号但后面没有

His best book, which won several awards was about the life of his mother. 他写得最好的书是关于他母亲生平的，荣获过几项奖。句中的 which won several awards 应该是定语从句吧，它前面有逗号，但后面怎么没有逗号呢？谢谢老师解答！

问题 damage的单复数与修饰语问题

The storm has caused _____ to this region.A. many damages      B. much damagesC. much damage        D. few damages正确答案C，我选的是B。老师为何 B 不正确呀？烦请指导。谢谢。

问题 时间和条件状语从句用现在完成时

...不能直接用一般将来时。如：If you don’t go, I will not go either. 你若不去，我也不去。When it gets warmer the snow will start to melt. 天气变暖时，雪开始融化。但有时从句可以用现在完成时，能请老师讲讲这方面的用法吗？

问题 lie below/lay below是什么意思

老师您好！请问下面一句中的 that lay below 为定语从句吧！lay below 如何翻译？对应的词性是什么？感谢！Though, at first, Byrd and his men were able to take a great many photographs of the mountains that lay below, they soon ran into serious trouble.

问题 various,variable,varied,different的区别

Different people have the most ______ ideas about what is important in life.Some value fame, others money or freedom.A. various      B. variable    C. varied     D. different答案为C。请区别一下这几个词。从汉语意思上太不好区分，谢谢！

问题 请教此句话中的last是什么含义

"I am afraid it will not last," said the colonel.原本以为任务就要结束了，但是上校说了这句话："恐怕，你的事还没完"。那么这句话中的last是表示什么意思呢？在我看来这句话表示的意思与翻译给出的刚好相反，即，你的...

问题 女孩为什么用himself和he来指代呢

And so the girl represents a part of himself that he has to push away if he’s going to be fierce.这句的人称代词是不是错的啊，女孩怎么用himself和he了?

问题 情态动词推测用法一道题

He _____ be here soon. He is usually on the time.A. would  B. could   C. should   D. must难道只能C吗？是因为must 语气太过绝对？如 ususally 改为 always，答案会有什么变化？感谢老师的无私指导，同时，把敬意送给刘永科，陈根花等专家...

问题 to live在时间名词后定语要不要介词

The doctors have told him that he has only 6 months to live, but he won’t accept it. 医生告诉他他只能活6个月了，可是他不接受这一诊断。请问这里的 to live 是定语吗？它后面为什么没有介词呢？

问题 as though引导的是什么状语从句

...ugh nothing had happened. 他若无其事地继续讲下去。She spat out the food as though it was poison. 她把吃的东西从嘴里吐出来，好像那是毒药似的。有人认为这里的 as though 是引导方式状语从句，但我没有看明白。请专家解释一下！

问题 这道题为什么不能选一般过去时

Mr.Smith ______ by a large majority vote at the board meeting.A.has turned down               B.was turned downC.has been turned down     D.had been turned down这道题为什么不能选一般过去时？

问题 关于beyond后接what引导的是宾语从句的疑问

The test result was far beyond what we had expected, which brought great joy to everyone of us.what 在这里引导的是宾语从句么，做介词 beyond 的宾语么？