找到约 30000 条结果

问题 unless 和 if...not 句型 互换的必要条件有哪些？

...邦的新编高级语法书上510页，说unless在意义上相当于if...not,因此，在有些场合，由if 引导的否定条件分句（主要是真实条件分句）往往可为unless引导的肯定条件分句所取代，例如:She wouldn't sing it if she hadn't learnt it. = ...unless...

问题 虚拟语气语法点（belieive it or not, be rich or poor）

最近看到Believe it or not, his discovery has created a stir in the scientific circle.还有 Be rich or poor, I will marry him anyway.这两个句子包含的语法点是一样的吗？是怎么样的用法呢，是在虚拟语气看到的。

问题 as such的指代问题

...o say a thing is better or worse implies some standard, which obviously is not there as such in the thing being evaluated.中文翻译为：说一个东西较好或较坏，这暗示了某种标准，很明显，这标准本身并不存在于正在被评价的事物中。出自撒穆尔•伊诺克...

问题 关于it was not until…that 的句型解释

...午12点，她就把饭吃完了请问以上哪个翻译更准确；it was not until…that 一般翻译为“直到……才”；那么与it was until…that 翻译有什么区别？

问题 主语从句的用法疑惑

今天看到一道题目，原题是这样的：It's not complicated at all. ______ you need is _______ the button and the machine will do the rest.答案是It's not complicated at all. What you need to do is press the button and the machine will do the rest.我觉得，首先这是个主语从句...

问题 I do not know why he said this. 如何理解这里的一般现在时？

...cheerfully.Strickland looked at me thoughtfully for nearly a minute. I did not speak."I've never seen him in my life," he said.I do not know why he said this, for I felt certain I had caught a gleam of recognition in his eyes. I was not so easily abashed as I had been some years earlier."I saw your ...

问题 any other后面接的名词用单数还是复数（​Not having any other...）

Not having any other option at that time, I decided it was best to sit and wait.option后面是否应该加s，限定词（many/any/some…）+other+名词中的名词的数是否是由前面的限定词确定（any后一般加复数可数名词）。

问题 not since是什么意思

Well, sir, you'll be covered with cobwebs if you go into it. Why, it hasn't been opened for nearly five years, not since his lordship died.请问：not since 是什么意思？

问题 如何理解was plainly done

She was rather tall, and her gray dress, simple and quite well-cut, did not hide the fact that her figure was beautiful. It was a figure that might have appealed more to the sculptor than to the costumier. Her hair, brown and abundant, was plainly done, her face was very pale, and her features were ...

问题 为什么用了过去完成时I had not seen him

...he saw me and came running towards me. It was no use pretending that I had not seen him, so I waved to him. I never enjoy meeting Nigel Dykes. He never has anything to do. No matter how busy you are, he always insists on coming with you. I had to think of a way of preventing him from following me ar...

问题 both...and...的否定式、not either ...or ...、no …and no…的否定式的区别

both...and...的否定式、not either ...or ...、no …and no…的否定式的区别如：You can’t speak both German and English.Both my father and my mother aren’t doctors. She isn ’t either a student or a teacher.

问题 虚拟语气的时态问题Had the government and scientists not wor

since their highest in 2005.这题的答案是would not have fallen，而我觉得是would not fall, 从句是对过去情况的虚拟倒装if the…scientists had not…,但主句用的是since+时间点，不应该是表示是从2015年到现在吗？有since的地方大都用用现在完成时，...

问题 If it were not for the rain,i would go hiking now.

请问下老师1. for the rain 可以写成for raning吗？2. 如果我要表示要不是现在正在下雨，我可以写成if it were not raining 吗？

问题 not部分否定

“Look, kids,” I say silently, “I may not do anything else for you this year, but not one of you is going to come out of here a nobody. I'll work or fight to the bitter end doing battle with society and the school board, but I won't have one of you coming out of here thinking himself in...

问题 too...to...句型理解困惑

...ely in being civil to all the world. For though elated by his rank, it did not render him supercilious; on the contrary, he was all attention to every body. By nature inoffensive, friendly and obliging, his presentation at St. James's had made him courteous.Lady Lucas was a very good kind of woman, ...