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问题 an M.D.为什么用不定冠词an

What kind of hospital is this? There isn't an M.D. Within a mile.为什么用不定冠词an?

问题 some 用于否定句的疑问

some 通常不用于否定句，但有时可以。如：I don't like some of them. 我不喜欢其中的一些。（言外之意：其他的还是喜欢的）请问下面这句的 some 用于否定句是属于什么用法：If I don’t get some time to have a rest, I can’t work well.

问题 awareness, stretches, range, measure辨析

Any job carries with it daily _________of boredom.A. awareness    B. stretches       C. range           D. measure这道题正确答案应该是B项吧，例句找到的。为什么呢？

问题 in 30 years可以去掉in吗

If you spend one hour a day reading 10 pages of a book, you can finish more than 3,600 pages a year, and 110,000 pages in 30 years.请问老师，时间状语 in 30 years 可以去掉 in 吗？

问题 were supposed to 和 should 含义辨析区分

What were supposed to be new proposals were in fact modifications of earlier ones.本句中的were supposed to 是否可以改成should ? 如可，含义有何不同？

问题 population可以指拥有共同特征的某一群人吗

请问“不同人群”除了different groups (of people)以外还有什么表达方式？可不可以用different populations？population可以指拥有共同特征的某一群人吗？

问题 know sb not怎么理解

这是《现代大学英语精读1》第四单元Text A的句子:Night after night have I sung of him,though I knew him not and now I see him.虽然之前并未见到，但我夜复一夜地歌唱有情人，现在我总算见到他了。这里know sb not 是know 的词汇用法还是句法？

问题 翻译：中国使用绿色能源的努力和目标。

答案写的是china's effort and target for green energy use，我写的是china's efforts and target of using green energy，还有一种方式就是china's efforts and target in using green energy这三种表达方式都对吗？

问题 communication skills与communicative skills

I also plan to take advantage of every opportunity to improve my communication skills.这是高中英语新教材译林版必修1第1单元的两个句子(p5)。请问这里的communication skills可以换成communicative skills吗？为什么用名词communication作定语，而不用形容词commu...

问题 power off的用法与分析

1. power off 这个应该是“动副词组”（动词+副词）吧？2. 动副词组中的副词是修饰动词的么？3. 例句：Sorry, subscriber you are dialing is power off, please dial it later!不应该把 power 变成 powering 么？这个没变，那这里的 power 是什么词性呢？...

问题 请问这里guarantees为什么加s?

Employees see anti-virus software, firewalls and IT departments as guarantees that their computers will work and will be safe. Of course, there aren't any guarantees.请问这里guarantees为什么加s?

问题 语法问题求教！解释划线部分的语法功能

Linguistic science confirms what experienced users of ASL-American Sign Language-have always implicitly known.本句选自GRE考试填空题①experience在这里是使某人经历某事的用法吗？可是词典里没有查到这个用法啊②这里的always后面是不是少了been？？

问题 when的特殊用法(表示“既然”吗)

It was foolish of you to take a taxi____ you could easily  walk there in 5 minutes.A. before  B. till  C. so that     D. when.答案为D, 这里是既然的意思吧？当什么情况下来理解可不可以呢？谢谢!

问题 stated和period在文中什么意思？

名词解释：budget an amount of probable future income and expenditure during a stated, period, usu. a year used as a a guide in making financial arrangements 疑问：a stated是修饰period(一段时间)的吗？怎么中间有逗号隔开？

问题 make后面能能接从句吗

This same absence of moral purpose was wounding companies such as News International, she thought, making it more likely that it would lose its way as it had with widespread illegal telephone hacking.这个是什么从句呢？make后面不是不能接从句吗？