找到约 17000 条结果

问题 was to have done是什么时态

...sources, not only to treat illness but also to maintain an abundant supply for research. 居里夫人的一项杰出成就是理解了积累强放射源的必要性，这不仅是为了治疗疾病，而且也是为了保持充足的研究供应。

问题 不定式做定语的疑问

Pasting Spring Festival couplets is an important custom for Chinese people to celebrate the Spring Festival.参考答案说：在这个句子中，to celebrate the Spring Festival 是动词不定式短语，它作为 an important custom 的定语，表示这个习俗是为了庆祝春节的。整个...

问题 rather than后接动词用什么形式

...用分词，则后面也用分词。但这个句子：Why didn't ask for help, rather than trying to do it on your own？按照规律应用 tried 啊！前面是过去式嘛！请老师分析一下！还想请教：instead of 和 rather than 语义和语法有不同的吗，在哪里？谢谢！

问题 which非限制性定语从句时可以修饰名词吗？

When music videos and satellite television offer daunting competition for poems, which demand a good deal of attention.这里的demand为什么不是demands， 照理说which指代前面的句子，后面应该谓语单数。这里which是指poems吗? 但是有逗号的话不是指前面的整个句...

问题 but vary in +whether引导句子，这是什么结构？

For example, the users of hehe interviewed in The New Yorker article agree on the giggling aspect of hehe, but vary in whether they view it as friendly or conspiratorial: it all depends on how many E’s the word has.

问题 如何判断这里的and后面的部分是否跟随从句

...句子，背景是孩子们去海滩冲浪。"We'd be out there for hours, swimming, bodysurfing, and just having a blast."我的理解是“我们在那游泳，冲浪，一玩就是好几个小时，玩得很尽兴。”请教我的理解对吗，这里的having a blast是和swimming...

问题 帮助我是他的责任。这三个句子对吗？为什么？

1.It is the duty to help me for him.2.It is his duty to help me.3.To help me is his duty.帮助我是他的责任。这三个句子对吗？为什么？

问题 比较分句修饰名词的两种形式

...a bad roof,比较对应项在比较分句中作主语，必须省略、3、This is the history as it was lived by the men of the 505th regiment.问题1：曹老师，这个as比较分句作名词history的修饰语，分句中的gap也是方式状语嘛？4、Please find the document as attached....

问题 two of which...如何理解？

... of(our commercial airplanes省略了吗？)used to／be used to／be used for的区别，这些是被动形式还是系表结构加状语形式？

问题 in case 和 so that 的问题

I’d like to arrive 20 minutes early _______I can have time for a cup of tea. A. as soon as B. as a result C. so that D. in case 这题选择C，表示目的，但是我看到之前有老师说in case 也可以表示目的，为了什么的含义，不知道在使用上要注意什么？ ...

问题 in that 和 so that的区分问题

Icy roads are dangerous for drivers_______ it's hard to know what is going to happen and accidents take place easily. A. even if B.as if C. in that D. so that 老师，这里选C，但是D没有逻辑错误啊？求老师指点。

问题 bread and butter为什么用零冠词

_______ was all he asked for.A.The bread and the butterB.Bread and butterC.The bread and butterD.A bread and butter为什么用零冠词？D项为什么错了？面包和黄油不是成对出现的名词吗？难道不能看成一个整体吗？

问题 existence的可数及不可数情况

For these reasons I think physical books will have a longer existence as a commercial product than some currently predict.这是一份四级卷子里的一句话，我对 a longer existence存在一些疑问，我觉得这里的existence应该是“存在”的含义，可是existence当“存在”...

问题 用不用冠词

...念晚会。译文：One day the anthropologist attended anniversary party for an famous annual magazine called Aantique.问：句1中，ambition后有个介词短语to be an ambassador someday.修饰它，我觉得此处其前应该加the表示特指“某天成为一个大使的”野心，而不...

问题 关于find in sth sth这种形式的搭配

我看到这么一个句子：We are excited to have found in Lauren Casentini and her team the perfect partners for taking what we have built to the next level.请问这里的find in，是find sth in sth结构由于宾语太长导致的变体动宾间隔吗？