...一个“时间段”的状语。例如：Tom has worked in this factory since 1990.Tom has studied English for ten years.3.一个表状态的“系表结构”，包括：be +介词短语；be +副词；be +形容词，由于本身具有持续的含义，其现在完成时，跟规则2是一样。...
... is now so rapid that there are always new developments that have occurred since one was at school. 译文：但如今科学进步的速度如此之快，一个人离开学校或大学后新的发展层出不穷。请问，粗体部分能不能翻译成“一个人还在学校或大学时新...
Last month, after analyzing figures on epidemics since 1960, The Economist concluded that people die at a higher rate from such disease outbreaks in authoritarian countries than in democratic ones, even controlling for income levels.请问control for在这里是什么意思？
请老师帮忙看看，这道题应该选什么呢，以及为什么。He has been receiving phone calls from journalists since he became famous.They ________ to know what will become of his life in the future.A．have wanted B．are wantingC．want D．wanted
It was the kind of party which makes you wonder why the hostess has troubled to bid her guests, and why the guests have troubled to come. There were ten people. They met with indifference, and would part with relief. It was, of course, a purely social function. The Stricklands "owed" dinners to a nu...
Crutzen has suggested that the Antropocene began in the late 18th century, when, ice cores show, carbon dioxide levels began what has since proved to be an interrupted rise.
此处的ice cores show为什么要作插入语，另外有begin后可以接宾语分句吗？
Renaud has been studying orcas sincethe 1990s, through his conservation research organisation, CIRCE, which carried out work that helped the orcas garner their officially protected status.句中的protected和status是什么关系，protected在句中是修饰orcas还是status？按句意来看...
1. She knew that she would weep again when she saw the kind, tender hands folded in death; 【the face, fixed and fray and dead.】这里的fray只有动词和名词的用法，可以和fixed,dead并列使用吗？2.There would be no one to live for during those coming years; she would live for her...
...ays in which this relationship has been refigured in contemporary practice sincethe 1970s.老师们中秋国庆双节快乐！请教老师：这句话中and之前有两个to1，这里应该理解为subject... to deconstruction吗？2，那theater to drama应该怎么理解呢？是relationship of A...
...戏，比赛中)落后，然后接着在释义项下：[with complement] the defending champions were trailing 10:5 at half time.冠军卫冕队在半场时，以10:5落后。我的困惑：[with complement] the defending champions were trailing 10:5 at half time.上句首先是在大前提[no objec...
...hink of it, he wasn't even sure his nephew was called
Harry. … There was no point in worrying his wife, …问题：1. He was sure (that)+从句、I'm glad (that)+从句等，这类主系表结构中的形容词后加的从句，具体是哪类从句？按现代语法是补足语从句吗？2. com...
...viduals; it has no brain or stomach of its own; it must think or feel with the brains or nerves of its members. 但是，群体除了是由单个的人组成外，并不是真正具有生理作用的有机体，它没有自己的大脑和肠胃；它必须依靠其成员的大脑和神经，进...
...n to a
party. 她刚参加一个晚会回来。He
has never been to see me since I have been ill. 我生病以来他从未来看过我。7.
与现在完成时连用的典型词语(1) since：since表示“自从……以来”时，无论是用作介词、连词还是副词，since都通常要与现...
I ate some fruit, which I ______ since I was a child, and the
vegetables from my garden. A.have enjoyed B.enjoyed C.enjoy D.had enjoyed能不能选择D, 还是只能选择现在完成时?