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问题 是动名词还是现在分词的区分

这里是动名词作同位语还是现在分词作状语？It is tempting to think that the January sell­off was exactly what was needed, purging the stockmarket of its speculative ex­cesses.选自经济学人的一段话，不太清楚这里purging ……这个是动名词还是现在分词呢...

问题 没有whether/of可以用or not表示“是否”吗

... depends on the weather. 我们是否能去最终取决于天气。Whether it was unwise or not depends upon the spirit in which it was done. 这件事可取与否全在于做这件事的态度。老师说，如果 or not 不是直接与 whether 用在一起，也可以用 if…or not 的形式。...

问题 关于短暂终结动词的疑问

...表示got better and better已经完成了。同样的句子还有，The city has grown fast in recent years.It's got bigger and bigger.还有这句话，As I listened to his story, I became more and more convinced that he was lying.这里的become是持续性动词吗？

问题 此处inventory和specialization如何理解，尤其是specialization

The above inventory of natural selection specializations would be remarkable enough, but what really separates the chameleon from its fellow reptiles is the fact that its scales contain the ability to change color.

文章 说说My flat is twice bigger than yours这个句子

...y和twice as作为句式结构列出。CGOEL明确告诫：Twice is used with as many as or as much as rather than more.PEU则有专门提醒。例如可以说：She's twice as lively as her sister.但不说*She's twice livelier than her sister.可以说:I ’m not going out with a man who’s...

问题 宾语从句where的分析

...sults.You want to predict something needs attention now and point to where it's useful for employees to go to.”1.across…是什么成分2.这这句中的的where分别怎么理解等于什么；第二句的where在句子中做什么成分，第二句where从句怎么理解意思？

文章 keep on doing sth. 跟 go on doing sth. 是一样的结构 —— 不及物动词 + 副词小品词 + 现在分词（作伴随状语）

...EPV)（7）Columbus kept on until he saw the land. (DAI)【注】与go on with 对应的应该是 keep on with，语料库中例句非常多，但正规词典没有收录，所以暂不作类比。但是，词典有keep on + 其他介词的用法，可以参考。例如：（8）If he doesn't agree,...

问题 请问句中的as引导什么状语从句？

The hefty price underscores how Wal-Mart is trying to compete more aggressively and effectively for younger and more affluent customers as it has seen its online business growth slow despite big investments in distribution centers and expanding services.请问：句中的as是什么意思？

问题 请专家解析这段话的表意和语法结构

Beat it I did, right over to my mom’s house. There must have been something wrong with the recipe, because when I came back home it looked the same as when I left.

问题 定语从句关系词(which与where)

...经常去看书的那个图书馆，碰巧遇到了我的初中同桌。（It）It was in the library which I often go to read books that I met with mydeskmate of junior high school.（which的位置应该是where）为什么这个定语从句要用关系副词引导，为什么前面已经有介词...

问题 Coming进行时的理解

请教老师，我们有时看到商场里的店面的广告牌上写着It's coming soon。Come 为不及物动词，是终结性短暂动词。所以, it’s coming soon. 现在进行时态表将来,  "即将，马上"。也就是，将来某一刻到来(将来某一刻开门营...

问题 be getting on with的理解

I wonder how they're getting on with it (computer).请问这个从句是怎么断的,谓语只到get吗?  on how 和 with it都归到程度,方式状语去吗?而这个getting也有点不解,get不是短暂动词,没有进行时吗.可这里"正进展的如何",get感觉是可以...

问题 关于sort of接动词原形

 And so it only makes the move where it can sort of look ahead 20 moves, right, and see which branches have the computer winning.为什么这里的look是原形？

问题 在表示用途时动名词和不定式的区别

请问老师It is the water to drink.和It is the water for drinking.这两个句子在表达意思上有区别吗?是不是不定式不定式倾向于表达目的，动名词倾向于表达用途？

问题 do, does, did表示替代时的疑问

有时为了避免与前面出现过的动词重复，可以用动词do，但有时又用do so, do it等。如何区别呢？比如：My wife asked me to buy some bread, and I ____.填什么？did? did it? Did so?