China may shorten the time to catch up with Western countries in this field by several decades.这里的by怎么理解呢?
老师说,either 用于表示两者中的“一个”,但感觉有时它是表示“两个”啊!比如:There are trees on either side of the road. 这不是指路的“两边”都有树吗?难道只有一边有树?
...ne another, high levels of intelligence, both individual and social. 亲爱的老师好,这个句子as后面这一些如何划分成分,是什么意思啊?as后面可以直接加ing吗?
The history of roast duck can go as far back as the Southern and Northern Dynasty.这里的go as far back as怎么理解呢,前者和后者一样?
比如下面这句:What lives longer than human beings?按理说,比人类活得久的肯定有不少吧?为什么动词用单数呢?可以用复数吗?
(A) Large part of our income goes on animal feed.上面句子中的不定冠词可以省略吗?
我们为何叫“不定式”为“不定式”?是因为“不定式”是由原形动词前面附加了一个“小品词” to 而构成吗?还是因为其它的原因?
表示在某节日,通常是用 on 的,如 on Easter Day, on Christmas Day 等。但有些也用 at,指节期,如 at Easter, at Christmas 等。请问一下:像 at Easter, at Christmas 这样可以用介词 at 还有哪些?
convinced 后面要接虚拟语气吗?His father, a retired officer, was convinced that he needed to go to a school that challenged him.这句话中 convinced 是不是接了一个虚拟语气的句子?
A series of improvements produced an instrument capable of myriad tonal effects.请教一下各位老师,1.“capable of myriad tonal effects”是作补语还是后置定语? 2. 能不能麻烦补充一下后接形容词作补语的动词?谢谢。
Was I to be the cause of her death too?老师,为什么表语可以是有生命的东西?
We tested all these boats, none of which are intact. 这里none of which. None是不定代词,of which作定语修饰none,如果这样理解的话,句子里面就是noun作主语,没有连词,这该如何理解?是把noun of理解成限定词吗?
请问,在表示我们快到那了, 是 We are near there. 还是 We are nearly there. 两种写法都看到过,也不知道哪种才是正确的...
Some information about the proposal has been sent out.这里的 proposal 是“提议”还是“求婚”?send out 怎么翻译?
She was taken to the hospital after being submerged in a river.这里的after being submerged是被动表示主动吗?该怎么理解?