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问题 关于现在完成时的问题

1、He has been a policeman.在没有时间状语的条件下，是否翻译成曾经当过policeman，那么和he was a policeman的区别是前者有对现在的影响而后者没有吗？2、和he have finished his homework相比则翻译成他已经做完作业，过去结束的动作对现在...

问题 see plastic dating back 怎么理解结构

"We see plastic dating back to the 1960s and 1970s" says a scientist.By reusing these plastic bottles, the center can build more nesting boxes for owls.The center is now raising money to buy a ship that will collect plastic directly from the ocean.Ocean plastic is a big problem for people who rely o...

问题 请问：这句话的语法结构？

请问：这句话的语法结构？ A friend to all is a friend to none. 滥交者无友。 学上我看不懂这句话的语法结构，请专家予以指点。

问题 out on是什么意思

Out on a ridge above the water-hole strode Kali with a loop of ribbon around his neck.Out on 是什么意思？

问题 英语难句翻译

The practice of infanticide, and suicide among the old people, seems to have been a factor of survival of food scarcity.请问这个句子如何翻译？尤其是 a factor of survival of food scarcity 的翻译。

问题 as的词性

What began as opposition against a carbon tax designed to curb climate change has morphed into a working-class revolt against Macron. 译文中翻译成这场抗议因为反对碳税而开始，偏向因为的意思那么应该归类为原因状语从句，但是感觉这里是介词。

问题 whereby用法疑问

为什么字典上标注的副词，但是他的用法看着不是呢？ They have introduced a new system whereby all employees must undergo regular training. a proposal whereby EU citizens would be allowed to reside anywhere in the EU 它应该怎么用？

问题 slice的用法

老师 a slice of 后面既可以加不可数名词又可以加可数名词对吗？2/ two slices of a sandwich 和 two slices of sandwiches两种写法都对吗？3/ 关于翻译： 第一个： 一个三明治的两片；  第二个： 很多三明治的两片； 是这样翻译吗？

问题 动词时态用法

B：Well, you should have put details of your market research spending and the interest you will have to pay on the bank loan.A：Great thinking, Sally. I forgot those important items.对话A里的forgot，这里为什么用过去时态，而不是用一般现在时态？

问题 in exchange for 用法的理解

A in exchange for B 这个词组的含义是不是：用自己的B交换A？

问题 refuse和decline区别

Out of a pity, I offered to help the old man up, but he ___ smilingly.A. refused   B. declined 用哪个呢？这两个单词 有什么区别呢？

问题 too...to...句式的省略

Too poor to afford a doctor, he died still in his forties. 句子中的 too poor to afford a doctor 是什么用法？是省略吗？

问题 请问{should have+ left}结构

Isn’t it strange that he should have left without telling us. 真奇怪，他没说一声就走了。 请问上句中的“should have left”是一种{should have+Ved}结构——表“过去该做而实际上未做的动作（其否定形式则表【过去不该做...

问题 everyone of us对得对吗(2014年高考英语江苏卷)

下面一句是从2014年的高考英语江苏卷摘下来的：It works in nearly everyone of us, and (72) ___▲___ us in one way or another, good or bad.不是说 everyone 后面不能接 of 短语吗？这里为什么又接了呢？

问题 if从句可用将来时态吗（另外还有badly表示“非常”）

If it will be useful for Dr Watson to hear what I have to say.老师，为什么从句用将来时，条件状语从句一般不是主将从现吗？I need your help very badly. very badly 是修饰need，是非常的意思吗，这个词组用在其它地方会产生歧义吗？如 I love you very ...