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问题 不定冠词和定冠词表类别时的区别

A horse is a useful animal.The horse is a useful animal. Horses are useful animals 老师，这三个都翻译成“马是有用的动物”。他们三个有什么区别?

问题 not...until... 主从句时态

Not until ______ himself seriously ill.A. he had completed the task did he findC. he completed the task had he found请问各位老师，这里为什么选 A？not find 发生在从句 complete动作之前，为什么主句不用过去完成时，反而从句用了？

问题 定冠词the的用法

...ty in a successful manager should be leadership, the ability to be the visionary for the people who are working under you.However, I weigh potential outcomes carefully before deciding on a course of action. In this way, I can measure the risks before making decision.I belong to a couple of professio...

问题 companion to的搭配

Scale also helps when it comes to an ever more popular companion to free shipping: free returnscompanion to我查了下朗文词典，有这个解释 one of a pair of things that go together or can be used together。红色的这个意思是否就是对应这个解释谢谢

问题 如何判断to do 的宾语

请问老师，我主要想搞清，to design 还是 to design on ？下面两句哪个对？1.What body shape is underwear based to design on?2.What body shape is underwear based to design ?因为我记得 有 what to do 这种用法。 do的宾语就是what，但在这，我不知道应该是...

问题 短文翻译

Energy is very strong in the sun. It lose a lot of strength by the time it goes into a plant. By the time an animal eats a plant, the energy is even less strong. When a second animal eats the first the first animal, it will get even less energy than the first animal gets. The second animal has to fi...

问题 存在句There came...和非存在句There goes...的理解

章振邦的书中说:There came a train.（存在句）There goes the bus.（非存在句）如何理解？

问题 这里的现在进行时are buying是什么用法

Why is it that some people are always buying beyond their means? I mean,they do not make that much and spend half of their incomes on designer clothes as such.这里的现在进行时are buying是什么用法？

问题 非真实条件句中定语从句的语气

...mate be twice as rich.这是上下文This is not a bad analogy for global immigration policy. When migrants move from a poor country to a rich one, they typically ma...

问题 from含义理解困惑

...）以下都是课本原句：1）a)I think people should know that life on Mars would be different from that on the Earth.=b)I think people should know the differences of the life on Mars from that on the Earth.书上说a)=b)。 对此，我有3个疑问：(1)是：句a)中life on Mars 没有定冠...

问题 假象时所用的虚拟语气

She explained: "If your feeling for me has any reality, any honest basis, what I look like won't matter. Suppose I'm beautiful. I'd always be haunted by the feeling that you had been taking a chance on just that, and that kind of love would disgust me. Suppose I'm plain (and you...

问题 for sb to do sth 中的不定式用一般式与完成式的区别

请问专家老师：It is a bad decision to have come here 是否可用 It is a bad decision to come here代替？此外，是否存在，it is... for sb to have done sth 结构；如存在，是否可以替换成 it is.. for sb to do sth 结构？

问题 once是表示“有一次”还是“曾经”

...r up-and-coming concert pianists, although Ms Raspopova has once asked her husband to help her out on stage.上面一句是2021年新高考全国卷I（乙卷）的阅读理解B有这样一句。请问句中的 once 是表示“有一次”还是表示“曾经”？

问题 不定式作表语的主动与被动

...意义是被动的，一般是用被动式。如：So generous an offer is not to be sneezed at. 如此慷慨的出价是不可轻视的。但可以用主动形式表示被动意义吗？So generous an offer is not to sneeze at. 如此慷慨的出价是不可轻视的。

问题 可以说sb is done吗？

在一章非谓语动词的专题里有这样一个句子：When you’re done, give us a call. 等你干完了，给我打个电话。句中的are done 用得对吗？我觉得应是 have done。是不是资料上印错了？谢谢解答！