找到约 2300 条结果

问题 书上说虚拟语气用于定语从句定语，从句和主句的时态。

老师，书上说虚拟语气用于定语从句定语，从句和主句的时态，可以参照虚拟条件从句和主句的搭配。那么Anybody who should do that would be laughed at.就相当于If anybody should do that, he would be laughed at. 这个例子可以证明上面所说的——表...

问题 has been observed of 时态理解

...bserved about… … 或It has been well observed that … … ？2)    时态问题: 句中has been observed of … 指的是已经被观察了（现在之前发生过的一次），还是一直被观察（一直持续到现在的状态）？Observe不是短暂动作动词，对吗？所以，...

问题 例句时态分析

Putin says Russia to target U.S. if missiles put in Europe. 老师说新闻标题省略Russia后省略了is,missiles后边省略了were如果是虚拟语气的话那么第一段President Vladimir Putin signaled Russia will aim new weapons at the U.S. if it stations missiles in Europe after quitting...

问题 一道时态选择题的答案

He ____ the key, so we ______ into the office.A. hadn't left; can't  B. didn't leave ;couldn't  have got C. hadn't left; could't getD. hasn't left; could't get答案是B，还是C？谢谢!

问题 时态和句式的问题

The millions of calculations involved, had they been done by hand, ______ all practical value by the time they were finished.A. had lost    B. would have lost       C. would lose       D. should have lost请问：应该选哪个？ had...

问题 I go to bed now 的时态对不对

I go to bed now，虽然这个句子简单，但是有些人说对，有些人说错，到底这个句子用一般现在时对不对呢，谢谢!

问题 一道完成时态的填空题（再续） 

谢谢mixz专家的解答，但对于老师说的“has been out也是现在完成时，只是将动作go out 换成了状态be out”， 我有不同看法，我认为：has been out（现在Tom在这儿）与 has gone out （现在Tom不在这儿）矛盾， 因此不应选B。不知...

问题 before, ago时态问题

1, I didn't go there two years ago.2, I didn't go there two years before.3, I didn't go there before.4, I haven't been there before.5, I haven't been there two years before.6, I hadn't been there two years before.老师 这些句子中哪些是错误的？为什么...

问题 句子时态和成分分析

1.这是今天看到的一句话，我怀疑是否有错误：If you were a fern, I'd say you have a fatal lack of chlorophyll.虚拟语气的主句是个复合句，我的疑问是复合句的从句是否应该遵循“主过从过”呢？也就是说have是否应该改为had？2.We are going to f...

问题 when引导的时间状语从句的时态问题

When the Internet was invented, it changed the world.When the Internet was invented, it changes the world.请问老师，是changed还是changes？也就是说，如果从句是过去时，但是主句的范围覆盖到现在，那么是主句是应该用现在时还是过去时呢？谢谢！

问题 没有明确的时间标志词如何判断时态

What colour _____ you _____ this bookcase?  I _____ it pink.A. are; going to paint; am going to paint     B. do; paint; paint      C. did; paint; painted在这道题目中，没有明确的时间标志词，如何判断选项呢？正确答案选A

问题 帮忙分析一句话（时态和结构分析）

老师，您好！The dress was rather more expensive than I was expecting it would be, so I didn't buy it.我对“I was expecting it would be”不理解:疑惑是:1）进行时表达了什么味道？2）如何分析这里的句子结构和成分呢？还有，这句话如何翻译成中文...

问题 时间状语从句表示时间先后时的时态问题

when时间状语从句表示与主句有先后顺序的时候，经常既可以用完成时也可以用一般时，请教老师有没有必须用完成时的情况？例如这句话从句可以改为过去时吗，When I have phoned Kate,we can have diner.

问题 关于情态动词表推测的时态问题

①He must have left Beijing,（hasn't he?）②A：Those tomatoes are huge!You must have watered them a lot!   B：Yes,I （did）.They ought to be ripe enough to pick by next Friday.为什么①用现在完成时，②用一般过去时，②能不能用“Yes,I have.”？

问题 分析时态：I gave you a map so you wouldn't get lost.

能分析 I gave you a map so you wouldn't get lost. 这个句子的时态吗？