...ted to the great task remaining before us — that from these honored dead we take increased devotion to that cause for which they gave the last full measure of devotion — that we here highly resolve that these dead shall not have died in vain — that this nation, under God, shall have a new birt...
At that time, a gallon of gasoline cost 18￠, which today would be close to ＄4——exactly where some experts think we might be headed.请问老师：此处的be headed 是be headed for吗？如果是为什么要省略for？where作什么成分？（等于for which吗？还是作名词？）
请教一下各位老师，以下两个句子：I need a pen to write with.The chair looks rather hard, but in fact it is very comfortable to sit on.都是“名词+to+vi+介词”的形式，为什么一定要用介词？第一个to do是做目的状语吧？第二个是做方面状语？谢谢。
I have seen many great men in my time, but I never saw a greater man in my life.后半句用了一般过去时，为何不用现在完成时（I have never seen a greater man in my life）?两者之间有什么含义上的区别？盼专家老师权威解惑，谢谢。
我见到过很多as 后面直接加形容词的情况，比如：Everyone loves a good house party, but the cleaning up the next morning isn't as enjoyable.这里并不是一般的 as adj as 结构，请问这里的as 就相当于是so ,very 的意思吗？
This is often the poet's stock-in-trade, but he seems to single them out in order to send up the very idea of the simile in poetry, as in “Violets blossomed loudly/ like a swear word in an empty tank”.求此句句子结构分析并翻译一下。
1.This kind of work is hard and dangerous. But_________
, you would become rich.A. would you succeed
B. could you succeedC. might
you succeed D. should you succeed老师我想知道为什么不用could？
...的一个解释，used to acknowledge that something is not literally true but is used for emphasis or to express strong feeling 用于表示所述之事不具有字面上所显示的真实意义，只是为了加重语气或表示强烈的情绪才作夸张之说。acknowledge不是一般为认同...
We registered the moment when the hijacked plane crashed into the bulding. 译文：我们纪念被劫持的飞机撞击大楼的时刻。请问老师，我查了朗文字典register的含义有注册，登记；表达（感情）等等，没有纪念的意思啊。请问，纪念的意思从...