找到约 2300 条结果

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？

问题 若过去的情况为客观事实该用什么时态

看到一个句子：The contribution of tourism to GDP was CNY1830 yuan in 2016.这里的 was，我有点理解不了。虽然2016是过去的时间，但是我是现在此刻在说一个客观事情，有必要用过去式吗？

问题 关于主句是一般过去时从句的时态问题

题目：She told the children that what their father had said ______(be) wrong.这里是填is还是was？我查到的是从句表示真理和客观事实时可用一般现在时，但这个客观事实的范围就很大了。原文章

问题 if从句为什么用进行时态

If we're only talking about the parts from the Ming Dynasty, it's about 8,850 kilometers long.这是一个答句，问句是问长城多长？这个if引导的从句部分，为什么用are talking about 现在进行时呢？这是人教版八下七单元课文的一句话，谢谢老师们的解答...

问题 I feel happier here than I've ever felt的时态问题

老师您好，请问英语句子I feel happier here than I've ever felt里than引导的从句为什么要用现在完成时态?谢谢老师!