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问题 not 位置不同导致意义不同

1. It is not too late to mend.2. He is too wise not to see that.一个否定在不定式前，一个否定在不定式后，有何区别？

问题 介词as 还是for

At that time， many farmers could only afford bread and butter as  their meal.这是某资料上的一句话，我觉得as应该改为for更为妥当，只是没找到相似例证。盼望专家老师指导，谢谢。

问题 句子类型

...e?所以我就开始想, 我们能不能为每个人做个模型？A model that looks, talks and acts just like them? 这个模型的样子, 谈话和举止就跟真人无异。请问这是什么句型， like表示像的时候，不是个介词吗。

问题 creat主动表被动

That means fewer contacts created through clubs, neighbors and organizations outside the home为什么creat不用被动呢？contact与creat之间不是被动的关系吗？

问题 what的指代问题

That is what makes a bloke.I aint go much sympathy like with them what is always thinking of causes.在这个句子里面what is, 什么从句，为什么不是who are？ 后面有think of, 主语应该是them。

问题 never ever的用法正确吗

I have never ever seen that happen before. 我之前从未见到过那种事情。有人认为句子中的 never ever 用得不正确，是这样吗？

问题 as的词性

as per sth（following sth that has been decided）中的as应该是介词吧。还有as per usual，这里的as词性。The work was carried out as per instruction.It also require grain purchasers to conduct quality checks as per national rules.

问题 改错（it改为which）

That is, communication is the means of human interaction, through it cultural characteristics are created and shared.这题的答案是it改为which, it 是指前面的communication,为什么要用which呢？ 

问题 好题分享（85）：单选题

Everyone knows that the Chinese_________  fireworks.A. invented     B. have invented     C. AB两种形式均可，但A更常见     D. AB两种形式均可，但B更常见。

问题 句子句式分析问题

Well, there are plenty more where that came from.(专四真题选句）各位老师，我想请教下这句话句式结构如何分析，这里的where引导的从句是修饰谁的呢? 引导的是什么从句呢，如果是定语从句，where=介词+which，难道是came from 介词+which吗？...

问题 为什么前后时态不一致

I know many things now that I wasn’t aware of when I was younger.为什么前面用一般现在时know，后面用一般过去时 was？

问题 where可以省略吗

The robot will then back out to the place it entered the reactor, a roundtrip journey that will take about two weeks.这句话的place后面是不是省略了where这个连词？是定语从句省略where的用法吗？

问题 test for用法

The good news is that it's easy to test for and treat, Dr. Samson said - though you may have to ask for testing during your regular blood work.这句话的test for有省略吧？

问题 术语 Cooccurrence 所涵盖的范围问题

...汉译本将其翻译为“同现”，维基百科对其的解释是：“In linguistics, co-occurrence or cooccurrence is an above-chance frequency of ordered occurrence of two adjacent terms in a text corpus. Co-occurrence in this linguistic sense can be interpreted as an indicator of...

问题 As hard as she tried是什么倒装

...ried是属于什么倒装句？ As hard as she tried, she always fell behind the other swimmers in the races. 句子是什么意思？好像是多了一个as，句子是不是应该为下面这样： Hard as she tried, she always fell behind the other swimmers in the races. 谢谢！