找到约 2300 条结果

问题 every day可以连用现在完成时吗

Since we came to Paris, it has rained every day.这个句子的 every day 用得对吗？

问题 remember doing/having done/to have done的区别

...后两者表示过去某个动作对现在的影响，就好比过去一般时态和现在完成时态的区别。比如lock.用前者的话只是表达过去有这么个动作，后两者则表示这个动作对现在产生的影响（防止小偷进去、家里的宠物狗不会溜出来……）

问题 延续性动词与非延续性动词的疑问

... to work,I always felt very sleepy and I was not happy.I bought in January.Since then, it has become part of my life.Now I ride to work every day. It is my daily exercise. I arrive at work with a smile on my face.--Thomas▲在http://ask.yygrammar.com/q-7321.html中网友retert曾回答过...

问题 不定式完成态和进行态的使用

...的动作或状态，那么这个“先于”的意思是“之前的一般时态”还是“之前的完成时态呢”？比如he seems to have been ill.这个不定式完成态是表示1.that he was ill then,即那时病了，现在病没病不知道，只是纯粹的表示之前一般动作。...

问题 现在完成时和一般现在时

...您之前答过，当时您认为A是正确的选项我的思考过程：时态就是时和体的结合，那么选择时态时，就应该从时和体来考虑，这个题的时（如您所说是说话人关心的时而非动作实际发生的时）就是现在（她没留下什么印象），据...

问题 关于情态动词 should/would/could/might

...，主句用主语+should / would / could / might，这是虚拟语气的时态倒退。比如：If I were you, I would reconsider their advice.假如这句话是事实的话是：If I am you, I will reconsider their advice.以上这个我明白。但为什么如果这句话是事实的话不能这...

问题 关于before和ago区别

老师你好。 I have waited for her since A. two hours before B. two hours ago 请问这两者有什么区别吗？有人说before是指在两小时之前，ago是指在两小时前，那么他们是否都适用于这个句子呢？

问题 I hope与I am hoping的区别是什么

hope的一般时态形式远比进行时态的形式常见。但后者也会出现在特定的语境。二者的区别究竟如何？如：I hope you can do me a favor.I am hoping you can do me a favor.I hope it wont rain tomorrow.I am hoping it wont rain tomaorrow.The scientists hope to solve the p...

问题 试题不太严谨

The manager ____ workers how to improve the program since 9:00. A. has told     B. is telling  C. has been telling   D. will have told　　提供答案为C，但是在没有上下语境的情况下，A也是可以的，所以该题不算严谨。我期盼更多其他专家老师对此的详...

问题 Tom has been out到底为何意？——看现在完成时的用法特征

...一个“时间段”的状语。例如：Tom has worked in this factory since 1990.Tom has studied English for ten years.3.一个表状态的“系表结构”，包括：be +介词短语；be +副词；be +形容词，由于本身具有持续的含义，其现在完成时，跟规则2是一样。...

问题 control在文中怎么理解

Last month, after analyzing figures on epidemics since 1960, The Economist concluded that people die at a higher rate from such disease outbreaks in authoritarian countries than in democratic ones, even controlling for income levels.请问control for在这里是什么意思？

问题 专四练习题

...hemicals import & export company, but he---- for this industrial fair, since he is on leave.为什么现在进行时is working可以，而现在完成时has been working不对？由于怀特先生在休假，所以最近都在这个工业展览会帮忙，怎么不对？这个又不是只开一...

问题 完成进行时问题

请老师帮忙看看，这道题应该选什么呢，以及为什么。He has been receiving phone calls from journalists since he became famous.They ________ to know what will become of his life in the future.A．have wanted     B．are wantingC．want      D．wanted

问题 when从句分析

SINCE MARCH 12th, when the first hickory shad of the year succumbed to a sparkly lure, anglers of both sexes, several races and all sizes have been lining the bank of the Potomac in Washington, DC, like salmon-hungry bears. 我感觉看作定语从句和状语从句都可以，是这样么？谢谢...

问题 现在完成时还是过去完成时

I ate some fruit, which I ______ since I was a child, and the vegetables from my garden. A.have enjoyed B.enjoyed C.enjoy D.had enjoyed能不能选择D, 还是只能选择现在完成时?