15585 个回答
现在完成时和现在完成进行时区分含义？
首先，这个句子中的现在完成进行时不可以改为现在完成时。I have been calling on Mortimer, and he pointed you out to me from the window of his surgery as you passed. call on sb= visit sb. Mortimer显然是个医生。surgery在此为诊所。现在完成进行时可以表示不久前正在发生的事，如同现在完成时可以表示不久前...
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这里的thing指代“人”吗？
Is there no such thing as a gentleman? 难道没有绅士这种人吗？这里用thing表示一个人的人品、素质、一种人等。这和先行词为指人的名词，限制性定语从句中作表语的关系代词要用that不能用who的道理是一样的。
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什么时候不宜采用形式主语it什么时候又必须采用形式主语it
对于初学者而言，你知道不定式和that从句作主语通常用外置结构，用it作形式主语。这样做的目的是为了避免句子主语很长而谓语相对较短（即所谓的头重脚轻）。而英语句子有一个尾重原则，即复杂的结构通常放在句末。如果句子的谓语部分本来也比较长，而不定式或that从句相对较短，此时不定式或that从句就无须外置，而是直接作...
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the same…as还是the same…where
as引导定语从句时仍然保持比较的意义“和。。。一样”。而以上两个句子都没有这样的比较意义。因此应该都用where引导定语从句且在从句中作状语。
回答于 1秒前
【问题讨论】shouldn't 能表推测吗
我先来回答吧。1 很多语法书和英语参考书都指出，must和have to都表示必须，前者表示主观认为的必要性，后者侧重客观因素决定的必要性。与此类似，should表示主观认为的责任和义务，ought to侧重客观因素决定的责任和义务。那么，既然已经有了have to do表示客观因素决定的做某事的必要性，为什么还要加上表示表示主...
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动名词完成式与一般式的用法区别
In my own research, complaints from women about their husbands most often focused not on tangible inequities such as having given up the chance for a career to accompany a husband to his, or doing far more than their share of daily life-support work like cleaning, cooking and social arrangement.动名...
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during when, during which, during which time 的用法与区
"Well, if you were in this White House and you had seen the reaction in the public and in the press to the idea that Dan Quayle would be acting President for a few minutes during when they were going to give that shock treatment for the irregular heartbeat, I think p...
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paint sb doing sth与show sb doing sth的语法分析
He painted her lying on the grass.The picture showed her lying on the grass.在分析这两个句子之前，我们必须先明确这两个句子是否是正确的英语句子，即her lying on the grass这样的结构能否作paint和show的宾语。词典例句中似乎没有这样的用法。如果句子是错误的，任何分析都没有意义了。让我们假定这两个句子是...
回答于 1秒前