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问题 过去分词done与现在分词的被动完成式having been done有何区别

非谓语动词中,过去分词done与现在分词的被动完成式having been done有何区别?例如这句话中: Heated, the metal expands. 能不能说having been heated 不是都表先后发生,且是被动吗?

问题 count on sb doing怎么分析成分?

You have to count on the ordering physician seeing it while you move on to something else.你需要依靠开处方药的医生在你忙其他事时帮你盯着点。We can't count on this warm weather lasting.我们不能指望这暖和的天气会持久。我的问题是:count on是依赖的...

问题 in cities and towns where infrastructure is in place 作什么成分

The sensible place to build new houses, factories and offices is where people are, in cities and towns where infrastructure is in place.

问题 辞书质疑(35):《英语常见问题解答大辞典》关于lit不能用作定语

...,就有用 lit 作定语的用例,参见该词典的COLLOCATIONS FROM THE ENTRY:对于这个问题,各位老师怎么看?

问题 It seems / happended that...句式分析(句尾的从句可以移到句首吗)

It seems that John's not coming after all. It happened that John was the only witness.以上两句中的 that 从句是什么从句? 可以移到句首吗?谢谢老师的解答。

问题 既作从句连接词又充当从句成分的情况

..._what is known__ as an "addlehead"-she always leaves her keys on the door. 本题答案说这里what就不能换成who,which等,因为who,which不能既作连接词又作从句主或宾语。 请问老师:1. 只有表语从句的时候who which才不能既作连接词又充当从...

问题 拜读了曹老师than what...文章后遇到的一个疑惑

...是删去] 文章后,今天读外刊遇到一个句子,It argues that the bet against subprime mortgages was far riskier than is often appreciated. 这里的比较项应为形容词比较级riskier,但than分句中缺少的主语并不是比较对应项riskier吧。所以这里是不是应该...

问题 第一条件句中if条件句的时态问题

...“从现”要理解为present tense所有现在时态,而不仅仅是the present simple tense一般现在时? 比如说 If you have finished, you may go home.

问题 if与whether的选择(为什么只能用whether)

It's uncertain whether the experiment is worth doing 为什么不能用if?既然老师们之前说过在形式主语的主语从句中if/whether都可以,那为什么这里很多选择题答案里面既有if也有whether却只能选whether? be uncertain 后面用whether 的情况网上很多说...

问题 than any other后面接复数名词算错吗

在不少地方看到过:than any other 后面接的名词只能用单数形式,在网上查了一下,也有不同的说法。在教材上也有这样一句,下面句子中than any other 后面的名词 country 可以用复数吗?请明确地说明,这里用复数算不算错?For examp...

问题 visit sb与call sb的区别(新概念第二册练习题)

He calls at every house in the street.  He ______ everyone.给出的答案是 visits,另一个选项是 calls,为什么不是calls? 还是答案有错?

问题 一直令我困惑的现在完成时与一般过去时

...k / has taken it away?3. My cake is gone. Tom ate it / Tom has eaten it.4. The window is broken. Who broke / has broken it?就这些句子的时态选择,学生我很是纠结,总是混沌,盼望专家可以为学生深度剖析一下,帮我彻底解开这种混沌的状态。谢谢。

问题 to be doing 是和谓语动词同时发生吗

The “teacher” on occasion would frown slightly, as if considering us to be neglecting our parental duties.参考译文:那位“老师”偶尔会微微皱眉,似乎觉得我俩没有尽到当父母的责任。 我们知道 considering 前面省略了she or he was,完整结构是 as i...

问题 关于曹老师回答的非终结性持续动词的问题

...达完成意义,需要添加边界性状语。那么比如he walked on the street如果根据一般体的事件意义,他走路这件事不是已经结束完成了吗?2.关于非终结持续动词的过去分词,您说只表被动不表完成,老师我的理解是非终结持续动词没...

问题 was responsible for doing与was responsible to do的区别

老师说表示负责做某事,应说 be responsible for doing sth,而不说 be responsible to do sth。比如: Tom was responsible for cleaning the windows. 汤姆负责擦窗户。 请问除了表示“负责做某事”外,在其他情况下可以用 be responsible to do sth 吗?