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问题 动作与状态表达（现在完成时疑问）

Have you asked your little brother to do the dishes?两个语境：①你让你弟弟把碗刷了吗？②你有没有让你弟弟刷过碗？第一句的“动作表达”含义可以理解第二句的“状态表达”不是很能理解，这个状态究竟是个什么意思？求老师指导一...

问题 economists assume away many details of the economy

away在句中，语法上如何解释。

问题 a quarter of结构

By July 2017 a chunk a quarter of the size of Wales broke off from the main body of the shelf. a chunk和 a quarter of是什么关系？怎么两个名词

问题 同一个句子为什么会出现两个谓语

一个句子中不是只能有一个谓语，其余的要变成非谓语动词吗？If there appears persistence in your mind, success will be achieved sooner or later. 这句话中为什么会出现两个谓语啊？

问题 be abandoned to用法疑问

...是使役动词，译为“使…沉湎于”？3.engage也有be engaged in这个搭配，是不是也等于engage oneself in，但是engage这个词是从事，参与的意思，engage oneself in中的engage是不是就是翻译为“使…从事，使…参与”这种使役动词？

问题 might情态动词用法习题

- Look, John's fallen asleep. - Oh, he ________ too late last night.   might sit up    must have sat up这道题为何不可选上面的选项？

问题 How it happened与Why it happened的区别

题目是一段语法填空题:When the first European ship arrived on Easter Island in 1722, all statues were stading there. Later more and more of them fell down as the years passed. No one knows _______ it happened. The most common idea is that the statues were pulled down in tribal warfare. But ...

问题 in加时间段

I haven't done that in a long time. 这句话in加时间段怎么用在了完成时，不是都是跟将来时连用吗？

问题 考研英语选项辨析：bold与desperate

...it identifies the undertreatment of pain and the aggressive use of “ineffectual and forced medical procedures that may prolong and even dishonor the period of dying” as the twin problems of end-of-life care.39. Which of the following best defines the word “aggressive” (line 3, paragraph 7...

问题 分析句子成分

求分析句子成分     Thinking is essentially a process of making connections in the brain.         essentially修饰的是process吗，副词为什么可以修饰名词，还是修饰的这个句子？

问题 of+名词的结构

Beauty that is merely the artificial shadow of the symptoms of health is intrinsically poorer quality than the genuine article请问老师，这个句子为什么一定要在poorer前加of, 用intrinsically修饰poorer，不可以吗？

问题 分析：Schools must be in session a set number of days each year.

Schools must be in session a set number of days each year. 请问这个句子如何分析它的成分？哪个是表语？句子是什么意思？

问题 连词the time

It was about twelve o'clock ___ I finished writing the report. 为什么这里不能用the time，只能用when呢？

问题 see后面可接形容词作宾补吗（see sb/sth+adj.）

...tand up and go out. 我看见他站起来，然后就走了出去。We saw the train come into the station. 我们看见火车进了火车站。在被动语态中，不定式要带 to。如：She was seen to pick it up. 有人看见她把它捡了起来。2. see sb (sth) doing sth 看见某人(某...

问题 为什么用returned from而不是returning from

...我眼前的青碧水，红花绿叶,使我惊讶而欢喜!Returned from the bitter cold North with its drab and dried up vegetation, I was amazed and delighted when greeted by the charming scenery of sapphire mountains and emerald rivers as well as red flowers and green leaves.请问一下这...