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问题 if条件句疑惑

If he can't chop vegetables with one hand he simply uses his feet.这篇文章讲的是一位残疾人士的生活。请问该句属于0条件句吗？（没有用he will simpy use）请问什么时候用0条件句呢?我有点迷惑。谢谢！这句却要用将来时：If you open it, you will...

问题 分析不定式 to recognize a masterpiece

He knows enough about art to recognize a masterpiece when he sees it.这里的不定式to recognize a masterpiece怎么分析？

问题 than的用法

Americans sleep less than is good for them 这里的than是什么意思

问题 把more....than看成习语

It's more my fault than yours.老师，more是much的副词的比较级吗，more在句子中的成分，修饰什么的，than引导省略了的比较状语从句？more是修饰系表，还是修饰系动词，还是把more....than看成习语？老师，副词能修饰系动词吗？什么情...

问题 雅思听力中 just 的用法疑问

摘自雅思听力一句话，请问 just 的用法：It's free and you don't need to book or anything, just turn up at 7:30.请问老师 ，这里 just 是副词，不是连词，为什么后面能加谓语形式的动词，这是排列句么？

问题 怎么确定can/could是表能力，还是表可能性

It could/can happen to anyone.She could/can be hot.

问题 为什么这里用虚拟语气(should) arrive

It's essential that he (should) arrive on time老师， 为什么这里用虚拟语气(should) arrive ? 虚拟语气表示虚拟的意思，但这里怎么理解“虚拟”含义呢？老师能否把原理深入讲一下呢？

问题 不定式做宾补还是目的状语的区别

It even monitors online activity to check that Ian’s children are doing their homework. to check... 是做宾补还是目的状语啊?

文章 高中英语新教材-词汇教学参考资料-外研版-必修1-Unit 3

...          ▲nation▲aim                      ▲issue▲theme                  ▲observe▲range                   ▲event▲apologise            ▲stress▲impact                 ▲strength▲admire                 ▲judge▲settl...

问题 ourselves是主语补足语，还是反身代词作状语

We must be able to speak it ourselves correctly. 这个句子中 ourselves 是主语补足语，还是反身代词作状语，相当于 by ourselves，只是省略了by？自己搞不懂了，麻烦大家给看看！

问题 关于虚拟语气与将来事实相反的用法

if it ______ tomorrow, I will stay at home.A.rained   B.will rain   C.had rained  D.rains问题：从句与将来事实相反，应该用过去式啊选A答案，为啥选D答案。不太理解!

问题 关于having done作宾语的疑问

He refused having done it in order to save his face.这里为什么refused为什么可以接having done可以作宾语吗？

问题 he took a long time to send them. 中的动词不定式表否定吗

The journalist immediately set out to obtain these important facts, but he took a long time to send them. 这是新概念第三册第五课中的句子。句中的to send them按句意，表否定才对，并且译文也是否定的。以我所学知识，只有too...to...的不定式才表否定...

问题 是否要加逗号的疑问

Sylvia regularly took a crowded subway train to work during rush hour, so she found it to be a paradox one hot, steamy  Tuesday to easily find a seat in a car that was nearly empty.  请教各位老师，paradox后面需要不需要加逗号儿？我认为是最好不加。

问题 can have done的疑问

Time permitting, I can have done it better. 请教老师，1) “本能够做某事而未做”通常用could have done, 这里为何是can have done ?                   2) Time permitting 等于If time permitted,是吗？因为是描述过去...