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问题 为什么before前后时态一致(有什么规律吗)

It is not long before they are so accustomed to swimming that they can pick up weights from the floor of the pool.为什么这个before前后时态一致？有什么规律吗?

问题 现在分词短语做什么成分

...n, on, or at (an area, event, etc.)在…工作；从事…工作She works the Northeast region of the state selling insurance.她在东北部地区从事保险销售工作。1.selling insurance做什么成分？2.selling insurance是方式状语:“以卖保险的方式工作（就等于说工作...

问题 一道改错题请教

... to spend a bit more on so-called “green” purchases seen as benefiting the environment or society.这句话中有一个错误，答案把incoms改成income，理由是income是不可数名词，但是我查字典发现income可以用作可数名词。答案是不是有问题呢？我自己认为...

问题 属格与宾格

I found (his, him) lying by the roadside.选him.可以选his，把宾语理解为是他正躺在马路这件事吗，如果可以的话，这样的句子常用吗，正不正式？I can not understand (his, him) refusing to do that for me. 选his. 不选him是因为understand它是静态动词吗？...

问题 pair作主语时谓语动词用单数还是复数

1. The pair _____ busy making money to buy a new car.填 is 还是 are，或者两者都可以？2. This pair ______ visited the Great Wall several times.填 has 还是 have，或者两者都可以？

文章 国家名称前面要不要加the

国家名称前面要不要加the ■赵琳博士（作者单位：华中师范大学外国语学院） 在全世界200多个国家和地区里，英语里的国名前有时加“the”，有时不加，经常把大家弄得云里雾里、不知所以。其实，在英语里大部分的国名通...

问题 recorded by changes in catch sizes 怎么理解

原句是That means a higher proportion of what is in the sea is being caught, so the real difference between present and past is likely to be worse than the one recorded by changes in catch sizes. 请问recorded by changes in catch sizes该怎么理解?如果理解成“捕捉规模的变化...

问题 “整体与部分”关系和“动宾”关系区别

...e of some food or drink, you try a small amount of it in order to see what the flavour is like.We have a taste of the white wine he's brought.  我们尝了尝他带来的白葡萄酒。 以上的a taste of 都表示“整体和部分”的关系，就是某食物的一小部分...

问题 主谓一致

one or two days are enough to see the city.请问这里谓语动词为什么用复数，时间、金钱等做主语时一般看作整体，不是用单数嘛？

问题 句子结构理解

Blood is much more than the simple fluid it seems to be.是it前面省略了先行词吗？

问题 句子成分

The problem is beyond their ability to cope with.请问老师cope with后面是不是应该加个宾语？

问题 被定语修饰的名词前用定冠词还是零冠词

语法书上说，the用来特指的时候情况如下： 1.表示双方心里都清楚的事物或人。 2.先前提到过得事物或人，再次提到时用the。 3.被定语从句修饰加以限定时，先行词前用the。 现在我来模拟给你一个场景（这个场景我...

问题 As far as 在这里等于定语从句简化修饰之前的most of countries吗

Alexˌander the ˈGreat  (356–323 BC) a king of Macedonia who, while he was still a young man, took control of Greece, Egypt, and most of the countries to the east of the Mediterranean Sea as far as India. He established many cities including Alexandria in Egypt, and is regarded as one of the g...

问题 I had been wrong 是为了强调之前错了吗

请教专家：I hired a car the day after landing and bought a comprehensive book of maps, which I found most helpful on the cross-country journey, but which I did not think I should need on the last stage. It was not that I actually remembered anything at all. But my father had described over and ...

问题 关于would的一个用法问题

...子：If you have been introduced earlier to someone, do not assume that the person would remember you and be prepared to reintroduce yourself should it be necessary. 从“have been introduced”和“do not assume”和“be prepared”来看，这句话讲的是现在的情况，因此用了现...