问题 老师您好, The production of oil will be down 10 percentage.be down是系表结构，那后面的百分之10又是作什么成分呢？是down的补语嘛？这里的down是副词作表语吧？另外，10 percentage前面的by是省略了吗？

问题 there be句式后面跟被动语态还可以接宾语吗

On her birthday, there was held a splendid party.这个句子对吗？如果对的话，应如何理解？明明是个被动语态（was held），后面为什么还有宾语呢？

问题 关于trouble可数与不可数

I had a lot of trouble with him.I had a lot of troubles with him.请问这句话 trouble 到底要不要加s, 为什么？

问题 朗文词典上be/lie at the root of sth理解中at为什么没有

朗文词典说 be/lie at the root of sth (=be the cause of something)是某事物的根本原因,例句：1)Allergies are at the root of a lot of health problems. 过敏是许多健康问题的根源。2)The love of money is the root of all evil . 贪财是万恶之源。为什么句1）are at the ...

问题 曹老师解答的《until 引导的时间状语从句时态的问题》自己有不明白的地方

...说话人关心的时间原文一段话：I heard nothing about it until you had told me. 说话人关注的是主句谓语的时间。（我是从你这里听说的）疑问2：Until语意到…时；直到…为止可是从句居然用过去完成时这个逻辑不通。你都告诉我了我怎么...

问题 as...as 前面为什么没有动词 be

I click on the modem, the once-annoying sound of the connection now as pleasant as my favorite tune.请问老师，第一个as前面为何少了is？是因为名词短语作状语省略了？谢谢老师为我们指点迷津。

问题 believe sb to be hidden的用法对吗（涉及hide是状态动词还是动态动词）

People believe him to be hidden in the woods.请问专家：这个句子对吗？不是说 believe 后面作宾补的不定式必须是状态动词吗？这里的 hide 是状态动词还是动态动词？谢谢您！

问题 CD为什么不对？

If the horse wins today，he _ thirty races in the last five years.A.will winB.will have wonC.would have wonD.had won

问题 句子分析与翻译

Twenty-seven years later smartphones accomplish many if not of the functions of the earlyPDAs.这句话的成分是怎样的？怎么翻译？谢谢！

问题 不理解一个句子三个逗号

If they are “noisy” active managers, who buy and sell on gut feel, expect more efficiency, not less.老师您好，这句话怎么理解，逗号让我难以理解。

问题 up的词性(be high up on the cliffs)

The light was high up on the cliffs.请问这里的 up 是介词还是副词？为什么？

问题 The dishes need be cleaned carefully这句话错了吗

如题。感觉情态动词+被动语态，没错啊。

问题 句子结构分析

...tudy, carried out by the Guttmacher Institute in New York in collaboration with the World Health Organisation (WHO) and published in a British medical journal, the Lancet, found that most abortions occur in developing countries—35m a year, compared with just 7m in rich countries.求此句子结构...

问题 一道介词单选填空题

Richard Johnson was a great US general, starting with his time as a soldier _______ Vietnam.A. through  B. with  C. during  D. beyond   请问应该选哪个正确？

问题 There used to be的反意疑问句可以有wasn't there吗

专家您好，就 there used to be...变反意疑问句这一问题，我曾经在徐广联教授主编的《实用大学英语语法》书中看到的解释是 wasn't there，请问对吗？为什么？