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问题 since从句的理解与时态难点

The library ______for more than 60 years since it _____ in 1940. A. has been open; opened B. has been opened; opened C. has opened; was open D. has been open; was open 正确答案为A。但 D 为何不可以呢？有资料说，当 since 引导的状语从句的谓语动词是延续性...

问题 非限制性定语从句可用破折号连接吗

...常是在前后用逗号隔开，但下面这个句子用的是破折号：The tall building over there—which cost 300 million yuan to build—has been empty for a long time. 那边的那栋高楼，就是花费了3亿元的那一栋，已经空置很长时间了。请问老师：非限制性定...

问题 时间不明确时如何推测情态动词所表示的时间

...目： Her birthday was a week ago, so it _______ (can't / be ) on the 25th. A. can't be    B. can't have been 我不太明白25日是说话之后的日子，还是之前，所以不知道应该用对过去的推测，还是对现在的推测。请专家指教，谢...

问题 find to one's suprise that..句式怎么理解

They found to their surprise that the goddness turned out to be a very modern-looking woman.这句子中found to their surprise 结构是什么意思? to their surprise成了found的宾语吗? 这样的话,that从句起什么作用，去修饰surprise??

问题 主将从现之迷惑

We usually go far a walk after supper if there _________ a good program on TV.A. isn’t B. wasn’t C. won’t be  D. wasn’t going to beA 项 这里从句用一般现在时，主句也可以用一般现在吗？

问题 如何理解 is missing 的用法

曾看到这样一句话：A diet that is missing vital nutrients is like a chair that is missing a leg.请问miss (失去）如果是瞬间动词，现在进行时用法对吗？miss 此处是表述进行中，还是将来？还是应该用现在完成时？

问题 关于agree是否及物的问题

...，陆谷孙等大师）查到这样一个例句：We are all agreed that the proposal is a good one. 我们都认为这个建议很好。这个句子肯定没有问题，但问题是这个句子被放在 vi. 的用法后面。我想，这明显是一个被动语态的句子，agree怎么会是不...

问题 非谓语动词能作非谓语短语的成分吗

...语里套有非谓语动词。比如：to hit running a cataiming to fly the carto jump to run homejumping running home.就是说；非谓语动词短语后面加非谓语短语，这种情况有出现吗，多不多？

问题 主从句主语需要相照应吗

主从句主语需要相照应吗？题目：As a scholar in the economic field, _______________ (她的研究仅限于经济学)。我的翻译如下：her research is only/solely limited to economics.her research is only/solely restricted to economics.Her study is solely confined to economics.标...

问题 与城市名称并列的UK,USA为什么不加定冠词

新版高中必修第二册英语课本里有一句话：Jan Tchamani, an English teacher in Birmingham, UK, suddenly developed a serious illness and had to quit her job. 此类表达，前有城市等时，国家名词UK, USA 等为什么不加冠词the?

问题 decide sb to save为什么翻译成被动

A robot has to decide whom to save after two cars plunge into the water.参考答案给的翻译是：机器人要在两辆汽车落水后决定救谁。 请问这里面的decide whom to save为什么翻译为被动，decide sb to do sth不是表示决定某人做某事吗？

问题 过去分词borrowed可以有作前置定语吗

若表示“借来的……”，可以用 borrowed 作定语吗？如：a borrowed car 借来的汽车a borrowed coat 借来的外套a borrowed girlfriend 借来的女朋友

问题 虚拟语气加倒装的问题(should, might, could)

曹老师，您好，我想请教您一个虚拟语气加倒装的问题。The bad news was that he could be a very dangerous person ______ he choose to be.空格处为什么要填should而不填might、could呢？如果是虚拟语气的倒装和省略。那是否是只有是should  had  were这...

问题 句子的语法分析

请问这个句子成分怎么分析？It is a common phenomen for college students to have a poor academic motivation.有几个问题想要请教一下，麻烦老师们了！这个句子it的作用是什么？是做形式主语吗（真正主语是哪个）？还是说它是一个强调句？it is...

问题 cut back与cut back on 的区别

..., metal and paper; and more than two thirds (70%) had tried to cut back on the use of disposable packaging, such as plastic honey bottles, and butter and yoghurt containers.句子摘自北师大高中英语必修第三册第8单元(p40)。请问 cut back 与 cut back on 如何区别？上面句子...