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问题 to do 的相关疑惑

If there is a lot of work __________, I’m happy to just keep on until it is finished. A. to do ​B. to be doing ​C. done ​D. doing 这里是动宾关系，为什么却用主动形式to do呢？

问题 to no avail的用法

His efforts were to no avail. He ordered that buildings be torn down, to no avail. 这两处的to no avail 用法是什么？to no avail 不是副词词组吗？为什么可以用在were后面？那第二处又是什么用法呢？

问题 to do不定式的一个用法

老师你们好，我想请问一下to do不定式在这里的用法But a defence does not have to be perfect to be useful.后面to be useful是做什么成分呀？

问题 ​请教曹荣禄老师

...Conservationists speculated that a "lake effect" may have caused the birds to mistake the sprawling solar farms for bodies of water. (www.latimes.com—Can solar farms and wild places coexist in the American West? 2020/06/02)个人感觉这里的may have caused更像是站在过去的立...

问题 怎么区分without sb doing sth接的单宾语还是复合宾语？

There is no way to make that loan work without the family taking a real hit.请问：我知道the family是taking a real hit的逻辑主语，但是我分不清楚这是“with+动名词的复合结构”还是 “with的复合结构”？请问这种情况要如何有效区分?   

问题 start 和 find 作为短暂动词使用进行时怎么理解

New techniques are now starting to reveal the army's true colors.Archeologists are also finding colors in the dirrt around Xi'an's terracotta warriors.按理，start 和 find 都是短暂动词，但在上面2句中都使用了进行时，怎么理解？像这种短暂动词使用进行时，一般...

问题 too...to...的反意疑问句用肯定还是否定

too...to...是一个常用结构，语法书认为它属于肯定形式，但表否定意义。如：It’s too cold to go swimming today. 今天太冷不能去游泳。He is too shy to speak to her. 他太害羞，不敢同她讲话。It’s too cheap to be good. 这东西太便宜，好不了。He...

问题 关于have to

请问老师，我今天在一本教辅书上看到说: 情态动词have to的疑问句是Where have you to go next?不应该是Where do you have to go next?是这两种表达都对吗？

问题 will表将来和be going to 表将来的用法区分？

We don't want to have to show panic.We're not going to show panic and that's exactly what I did.1）使用have to = 不得不，必须， 句意怎么理解？感觉去掉have to才通顺。2）为什么不是说We will not show panic...用be going to用意是什么？

问题 helpful to do

在某教辅材料中遇到这样一句话：Listening to English speeches and watching English movies are helpful to improve English.我觉得这里的helpful后用不定式是错误，此错误就类似于我们不说We difficult to make progress而说It is difficult for us to make progress.应该...

问题 不定式作目的状语还是定语

Let's find more things to put in the machine.它符合动宾，看作目的也很通顺，是否两种解释都可以?

问题 语法分析

In 1982 , the Securities and Exchange Commission passed a rule allowing companiesto buy back their own stock.(译文：在1982年，美国证券交易委员会通过了一项规定，允许公司回购自己的股票。)问：这里的allowing companies to buy back their own stock. 是现在分词...

问题 有没有宾语前置句？

The tremendous changes new technology will bring to people's lives.这个来自六级听力考试的一个选项。它不是一个句子，只是一个短语，只是省略了问题的主干。但是有人说这个是宾语前置句。请问是这样的吗？

问题 句子分析

...ckdown, drag-out. And we're ready," Harris told media outlet TheGrio in an interview released Sunday, when asked how Trump promoting birther conspiracies signals the tactics his campaign will use.请问，这句话该怎么分析，signals是什么词性

问题 关系副词的省略

Interaction with the multitude of microscopic organisms a baby picks up when it is born helps that system to learn friend from foe.老师您好，请问这里的a baby应该是省略了关系副词where吧，它为何又可以省略。它并非表地点，原因，时间啥的。