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问题 hear sb doing sth 与 hear sb do sth 中二选一

Listen! I hear someone _____ (knock) on the door.语法书上说，hear sb doing sth与hear sb do sth 都可以说，只是意思有区别——hear sb doing sth表示动词在进行，hear sb do sth 表示动作的全过程。但就上面这个题目，感觉填 knocking 或 knock 都可以。是...

问题 should后面为什么接动词has

Everyone should has an ambition in his lifetime, otherwise his energy will be wasted.请问should后面为什么不是动词原形have？

问题 N1+of+N2 如何翻译理解

If his object had been health for health’s sake, the result would still have been well worth any sacrifices of momentary desire that it cost him; but he had a higher purpose.句中any sacrifices of momentary desire ，可以概括N1+of+N2, N1和N2根据具体的情况，可以有多种理解，这...

问题 “介词后面可以接 that 从句” 的说法，应该休矣

...姆剃刀原理”， “如无必要，勿增实体”（Entities should not be multiplied unnecessarily.） 该原理是 “简单有效原理”，也叫 “思维经济原则”。 该原理提倡人们思维、做事要  “简单有效，尽量不增加例外和不需”。 为了不增...

问题 in的词性和用法

...well-established corporations sell highly specialized devices for business use and a fast-growing number of start-up companies produce innovative toys, gadgets for hobbyists and other interesting niche products. 请问where引导的定语从句...

问题 时态一定要一致吗

I just woke up and feel tired.I just woke up and felt tired.I just wake up and felt tired.难道feel要跟前面时态一致吗?

问题 what的主语从句

This book will show you ________ can be used in other contextsA. how you have observedB.what you have observedC. that you have observedD. how that you have observed本人对what引导的主语从句不是十分了解，希望大家能够给予一些建议。（本人是英语初学者，莫要太深...

问题 限制性与非限制性定语的判断（Certain poisons, used as...）

...isons,  used  as  medicinesin small  quantities, prove not only innocuous, but beneficial. 我觉得 used 后面是一个非限制性定语。虽然从含义上来看，有点儿像限制性的，但是因为前面certain已经起到了限制性的作用，所以 used 后面...

问题 关于时态

刘毅单词里看到个句子Before he decided to study abroad,he has to solve financial problems. 疑问是：before从句中已经是一般过去时态了，主句是不是应该用过去完成？

问题 句子成分

各位老师好  Applying AI to marketing, sales and supply chains could create economic value.介词词组to做什么成分？宾补么？谢谢老师。

问题 run smarter是什么用法

下面的句子是2020高考英语浙江卷阅读理解B中的句子，请问 run smarter是什么用法？什么意思？为什么用动词 run？Now he hopes that other cities will consider making their streets run smarter instead of just making them bigger.

问题 关于since从句中延续性动词的含义问题

老师们，我有以下四个关于since从句，我特别想知道到底要怎么理解since从句的谓语动词与since从句的翻译，特别想知其所以然①I have known him since I was in Shanghai②I have known him since I have been in Shanghai③It's 3 years since I was in Shanghai④I...

问题 动词的体

动词的体是什么、有哪些，在非谓语中有什么结构，有没有 to be being done的结构，to have been being done的结构？

问题 关于pretend用法

请问老师“他假装正在写作业”是翻译成is pretending to write homework还是pretend to be writing homework.

文章 高中英语新教材-词汇教学参考资料-外研版-选择性必修1-Unit 5

...教学参考资料。▲seed                  ▲distant▲answer the call ▲* disgrace▲be a disgrace    ▲* geologist▲sample              ▲* evolve▲* finch               ▲beak▲suspect             ▲ancestor▲evolution           ▲generate▲ch...