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问题 keep doing 与 keep having done的用法与区别

英语肯定是可以说 keep doing sth 的，比如：The baby kept crying for an hour.但是，英语可否说 keep having done sth 呢？比如：The baby kept having cried for an hour.

问题 ​in the airport与at the airport 的区别

据我了解，at the airport 比较常见，in the airport 也有出现，请教各位老师，两者有何区别呢？是否跟 in 与 at 的区别有关？at 用在小地方前面, in 用在大地方前面。

问题 in good conscience在句中的位置（可以放在句首吗）

I cannot in good conscience cast my vote against the defendant. in good conscience 的意思是“凭良心”，它为什么放在句中？可以放在句首吗？

问题 too busy后接现在分词的用法分析

One of the thieves was struck by a heavy statue, but he was too busy helping himself to diamonds to notice any pain.分析一下为什么 too busy 后面要加动词的现在分词形式？to diamonds to notice any pain 是什么意思？这句话为什么一个 too 后面跟了两个 to?

问题 介词短语作介词的宾语，情况多吗，具体有那些介词？

The wind blew in from the desert and covered everything with sand.Then from behind this door I heard a terrible sound.老师，第一句把in省略，意思没有发生改变吧；介词接介词短语的情况多不多，主要有那些单词？

问题 分析drawn by在句子中的意思和作用

A 42-year-old physical therapist from Berlin, for example, chose to go to a dentist in Budapest, drawn by hundreds of euros in savings compared with the same treatment in Germany.这里的drawn by...怎么理解呢？ 求助老师解答。

问题 are becoming的become是系动词还是实义动词？

people are becoming aware of the danger of the polution.这句话中，are becoming是系动词become的进行时，所以整体是主系表结构。还是说become是实义动词？能否具体分析一下？

问题 关于of/by/through A treatment 的问题

The desalination rate of 0-80cm soil layer of HT treatment was 3.12 and 8.99 percentage point higher than that of CT and NT treatment in field experiments.想请问老师，这里的of是不是换为by或者through更好一些?

问题 both...and 连接的成分不对等

...指加州。我觉得第二个 to 应该去掉，否则 both...and 连接的内容不对等。我这样理解对么？谢谢各位老师。

问题 Paul is friends with Bill中的friends的释义

在薄冰老师的语法书中名词章节有这个例句，这个无数念的无但形复形名词是否表示friends在此用作不可数名词，表示友谊？是否为固定搭配，仅friends一名词在此处可用作不可数名词？恳求老师解答，谢谢!

问题 现在进行时表将来和将来进行时的区别

这里面有一道题：The summer vacation will begin next week. David _____ to stay with us.A.will be coming B.is coming   C.comes我个人认为A.B都正确，都表示按计划定会发生的事情，不知是否正确，谢谢老师指点。

问题 不理解一段汉译英翻译中第三人称单数的用法

...不受侵犯，如何防范网络欺诈等问题，既关系到网络环境的安全，也关系到每个网民的个人安全。参考译文：Issues such as whether online comments are legal, how personal information is protected from infringement, and how to defend against online fraud, bears&nbs...

问题 tune out和long的意思

...puters, tablets and cellphones are gradually taking over.问题一：文中的tune out是一个固定搭配，并没有和of连用，比如 She tuned out the noise and concentrated on her work.这里并没有使用"tuned out of the noise"。请问文中的"tuned out of live action"为什么可以加...

问题 going to是现在分词作伴随状语，还是grow up的宾语（看作动名词）

Not having any culinary background, it still kind of blows my mind that I am a spice girlbecause I did not grow up going to spice shops.老师，这里的going to是现在分词作伴随状语，还是看作是grow up的宾语（看作动名词）？

问题 请教一句话的理解

We find evidence of such extended events in the fossil record, which affords glimpse into the breakup of formerly continuous environments. “which affords glimpse into the breakup of formerly continuous environments”是什么意思？