找到约 2300 条结果

问题 虚拟语气

...saturated with fish.Some individuals would therefore not have been caught, since no baited hooks would have been avaliable to trap them, leading to an underestimate of fish stocks in the past.第一句：would have been more saturated with fish本可以捕获更多的鱼，而实际上捕捞量却...

问题 what引导词的用法

...onths, though it had less to do with initial alliances - not surprisingly, since attitudes may not be obvious on first inspection.what friendships would be established，是what friendships作estabilsh的宾语，还是friendships作establish的宾语？ 

问题 constant和continuous的区别

...rate of population increase of india has been (constant) in recent years.2.Since she met Marti, he has been a (constant) source of strength and support.3.Many students prefer (continuous) assessment to a once-for-all approach.4.This video player provides highspeed dubbing and (continuous) play facil...

问题 before连词的现在完成时

...以不过有区别。我在答疑网搜了好多关于before做连词时的时态，主要如下：主句将来时，before从句一般现在时主句过去完成时，从句一般过去时 /  主句一般过去时，从句过去完成时同时我翻了下语法书，都没有涉及到主句为...

问题 地点状语能作主语吗

...prints found in South Africa in the mid-1990s and fossil remains uncovered since 2002 in Central Africa and near the Black Sea suggest that hominids may have walked upright as early as six million years ago.这里两个and开始并列的都是过去分词作定语修饰的名词短语，但是到第...

问题 《经济学人》中的难点句的语法分析

经济学人里的句子，请问第二句话的语法是不是有问题？But in 2012 the KNU signed a truce with the army.It later joined the peace process, progress on which has been touted by Aung San Suu Kyi as her priority since she became Myanmar’s de facto leader in 2015.

问题 插入语和破折号

he created an entire science of communication which has since inveigled its way into a host of applications, from DVDs to satellite communications to bar codes - any area, in short, where data has to be conveyed rapidly yet accurately. 问题：本句的阴影部分的语法结构是什么？①“...

问题 ever放在句首做连词的情况

例句：Ever since I was born, I have passed no more than twenty odd summers in this world but this short period of time has not been spent for nothing at all.我有了生命以来，在这个世界上虽然仅仅经历了二十几个寒暑，但是这短短的时期也并不是白白度过的。...

问题 关于曹老师回答《关于in+一段时间用法》的自己的疑问

...的时间之后的事件。那么这里的谓语动词只能是一般将来时态和一般过去时态。对吗？第四个问题：非终结性持续动词、终结性持续动词、非终结性短暂动词、终结性短暂动词（又叫状态转换动词）。我们到底怎么辨别？

问题 并列句可以不带连词或逗号吗

But Armenia and Azerbaijan have since agreed to "disengage" from the border are now in the midst of pulling back troops from part of the border.本句改自一个英文新闻网站，请问各位老师，这样的句子是否符合语法？我理解这个句子是一个并列句，应该在are前加...

问题 难句中the way to go的理解

But, for a small group of students, professional training might be the way to go since well-developed skills, all other factors being equal, can be the difference between having a job and not.句子中的 the way to go 如何理解，求解释!

问题 will, would 的区别（涉及混合虚拟语气）

—What would you do if it _______ tomorrow?—We have to carry it on, since we've got everything ready.A. rainB. rains C. will rainD. is raining答案为B。请问题干中的 would 什么意思和用法？改成 will 可否？二者有何区别？另外，这感觉是将陈述语气与虚拟...

问题 含有定语从句的难句分析

Ever since humans have lived on the earth, they have made use of various forms of communication. Generally, this expression of thoughts and feelings has been in the form of oral speech. When there is a language barrier, communication is accomplished through sign language in which motions stand ...

问题 向曹荣禄老师请教：关于终结性动词完成式与持续时间状语连用

...动词既可以为终结性动词又可以为非终结动词，现在完成时态时加持续时间状语等于现在完成进行时态，表示从过去到现在持续到现在的动作。那么按照这个理解，I have lived in Beijing for 15 years应该用非终结动词解释，但是又与我...

问题 关于过去完成时的问题

...said之前的事，完全符合过去的过去啊。而且宾语从句中时态要注意的问题就是如果主句用过去时的话，从句要用相应的过去时态，如果从句动作发生在主句之前，那么从句就要用过去完成时，完全符合，那么为什么这里填began呢...