找到约 30000 条结果

问题 一般过去时和过去完成时判断

1. I did it because they asked me to do it.2. The only reason I went was because I was told to.3. That was how they sneaked by.请教老师以上三句话从句可以改为过去完成时吗？

问题 情态动词would的用法

“Before the operation, I would look at someone and all I could see for their face was jelly,” says Jonathan Wyatt. “Now, I can see people's faces."   would在这是表过去反复发生的动作吗？还是别的意思？

问题 句子词性分析疑问

She and all the people on the raft had been picked up by a homeward-bound vessel the day after they lost sight of their ship.这里的homeward是副词还是形容词接bound构成复合词？有点理解不了这个bound也不是分词。He ran forward a few steps and caught hold of another rock a ...

问题 were leaving 和 left 时态含义辨析

...els scooped up stones which hammered ominously under the car. We felt sure that sooner or later a stone would rip a hole in our petrol tank or damage the engine. Because of this, we kept looking back, wondering if we were leaving a trail of oil and petrol behind us.1) 这里的leave是静态动词...

问题 it 句子成分分析

Cholesterol builds up in our body and it's this build-up that's thought to be harmful.请问老师，后面的it指代的是什么呢？that's thought to be harmful如何分析？

问题 and的有无与破折号的使用

下面三个句子，都用了 the sooner the better，但一句用了 and，一句用了破折号，一句什么也没用。这是为什么？I want you to get rid of those people, and the sooner the better. 我想要你摆脱那些人，越快越好。Please do it as soon as possible—the sooner ...

问题 介词加不定式疑问

...ent?只有少数几个介词可以加不定式，包括 save, but, except, other than 和 than等。其中save, but, except 和 other than 都表示“除……之外”的意思。than 则用于表示比较。为什么by也可以呢？

问题 多个that引导的并列宾语从句时第二个及以后的从句that必须都不能省吗

...ple who supported it would be attacked.这里面 people 前为什么没用 that？请问，多个 that 引导的并列宾语从句，第二个及以后的从句 that 必须都不能省吗？

问题 unconditional desire的意思

...e surface culture is passion for first-class performance. Employees should have team spirit and independent initiative, as well as the unconditional desire to constantly learn more.如何unconditional desire在句中的意思？

问题 since attained的用法分析（since后接过去分词）

...uld establish uniformity in that practice, so that practitioners would not have to cope with a plethora of often conflicting national regulations.请教老师：since attained作什么成份；conflicting此处什么词性，作什么成份？

问题 现在完成时与一般过去时时间状语的理解

1.I have washed some clothes this morning.老师，这句话，对于这个this morning, 这句话是影响性用法（现在是早上，衣服在两个小时前洗好了，现在我可以好好休息了）还是持续性用法（洗衣服洗了一个早上）？该怎么理解？2.I went to the den...

问题 主动语态改为被动语态的疑问

...cy do her homework tomorrow instead?应该是：Can Lucy's homework be done tomorrow instead by Lucy ?还是：Can Lucy's homework be done by Lucy tomorrow instead  ?另外，tomorrow instead 是时间状语吗？应放在by Lucy的后面吗？求老师解答，谢谢！

问题 句子成分划分

老师好，请问句首的craft作何成分？Officially an experimental craft, testing new propulsion systems and imaging devices for spotting space debris, American scientists and military leaders have watched the sj-17 perform remarkable manoeuvres.

问题 whether 的用法

To sum up, public toilet have great importance, whether in regard to people’s well-being, social inclusion and harmony.这里的whether是什么用法？whether 一般和or搭配，这句话的whether...and....是否有误？

问题 perhaps the most far-reaching has been the inexorable decline in thw scope and seriousness of their arts coverage.这里的has been the inexorable是不是现在完成进行时呢？如果是现在完成进行时为什么inexorable不是ing？

Of all the changes that have taken place in English language newspapers during the past quarter century, perhaps the most far-reaching has been the inexorable decline in the scope and seriousness of their arts coverage.