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问题 prove现在进行时意思存疑

Six men have been trapped in a mine for seventeen hours. If they are not brought to the surface soon they may lose their lives. However, rescue operations are proving difficult.  以上摘自新概念2的一篇课文。请问老师这里prove为什么用现在进行时？证明就证明了...

问题 family(家庭)可以用复数吗

...What do you think of families? Why? 答案内容包括：I think families are very important to everyone. Because they are our beloved people, such as our parents, brothers or sisters.....根据答案可知families这里指的是家人，但我记得family指家人不需要变复数吧，而families...

问题 英语中16个时态对应有16个被动语态吗

...16个被动语态结构中，哪些是不常用的？我感觉 would have been being PP就很怪。是不是说英语中不会出现 be being、been being 这种 be 动词连用呢？感谢老师帮我指点。谢谢您。

问题 近似于不及物动词的系动词(源自张满胜的英语语法新思维)

...n eagle. It is an outstanding bird, but you cannot fly like it because you are just a prairie chicken.”So the eagle never gave it a second thought, believing that to be the truth. It lived the life of and died a prairie chicken, depriving itself of its heritage because of its lack of vision. What ...

问题 no matter how difficult the paperwork is的用法与分析

...nbsp; B.how        C.what        D.now答案是 B，为什么是 B？no matter how difficult the paperwork is 这句话该怎么分解（主谓宾）？麻烦能不能详细说明下呢~ 谢谢！

问题 one/that指代替换前面出现的名词的疑惑

1）We now know that Archimedes, one of the foremost mathematicians of ancient Greece, devised a method forcomputing volumes that was very similar to THAT of Newton, who developed calculus.语法书上说，one 指代带不定冠词的名词，而that指代带定冠词的名词，那么上面句子...

问题 be with the South African Network Society的理解与翻译

Indra de Lanerolle is with the South African Network Society.with 在这句话中怎么理解？整句话怎么翻译？

问题 be able to do不定式分析(不定式作什么成分)

He is able to finish the work in time.这里的不定式在句中是作什么成分?谢谢老师啦！

问题 competition可数吗

首先确定一个问题：competition 是否为不可数名词？下面一句中的 competition 就不可数吧：There is a lot of competition between schools to attract students.

问题 too...to 与 be+adj+to do 不定式主动表被动的问题

1. The tea is too hot to drink.2. The tea is too hot to be drink.3. The dish is delicious to eat.4. The dish is delicious to be eat.请问有4这种用法吗，这四个句子主动被动有什么区别，所谓不定式主动表被动，有没有什么别样的思路去理解？我自己感觉，to...

问题 关于and连接两个系表结构的省略问题

请问各位老师，关于 and 连接两个系表结构的省略问题：They're usually three meters tall and are as big as the size of a classroom.and 后面的 are 是不是要省略？

问题 动词分析

Among the US＄3.3  billion in goods it slapped  tariff on in May were in Harley-Davidson motorcycles,Kenturky bourbon and Levi’s jeans.1.句子中前面已经有一个slapped，词典中用法是slap sth on sb/sth，后面还有一个were,这里的slap是看作定语修饰前面的it吗...

问题 insist的用法

 1）She insisted on his/him wearing a suit.insist 后接动名词，中间加了on；2）He insists that she come.insist后直接接that从句，中间不加介词。无论insist后接动名词还是that从句，接的成分都是宾语，但接that从句不用介词，这种情况应该如何...

问题 I can't believe...后面的宾语从句为什么用过去完成时

She didn't even know I was going to a real school now. I can't believe you hadn't even told her.为什么前面用表示现在的能力，我难以相信，而后面则是一个过去完成时，与之呼应的过去时间不应该是 I couldn't believe …？用can’t believe是想表达，无论...

问题 英语句子分析

Some of them didn't know whether the plan would be carried out ahead of schedule or be put off.1.请问句中ahead of schedule是什么成分? 这种adj+of+n结构,前后属于什么关系,也是所属关系吗?2.be put off 此处的be是否可以省略？