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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 help moderate the effects中moderate的词性

Such bodily reaction might conceivably help moderate the effects of psychological stress. 其中 moderate 是什么词性，为什么放在 the 前面。

问题 过去完成时VS一般过去时

China had planned this week to dismantle some of the rescue measures put in place when the stock market crashed last summer.请问：句中的 had planned 是否要改为 planned？crashed 是否要改为 had crashed？因为 this week 是时间要比 last summer 晚。

问题 that从句能做动名词的宾语吗

His speech led me to the understanding that it is importance of to learn English that从句能做动名词的宾语构词动名词短语吗

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 分词做定语有固定结构吗

Before setting off, Bedeau directed me to choose a walking stick from a pile leaning against the outside wall of a small store selling snacks and souvenirs.上文中的selling可以还原成which sells吗？是不是有些分词作定语是已经非常成形的固定表达，如selling不可以轻...

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 while的作用分析

...oing and how they will get there should not be distracted by the necessity of keeping one eye on the cash register while the other eye is on the microscope.问题：在这句话中while的作用是什么，并列连词？时间状语从句连词？让步状语从句连词？

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 关于不定冠词和定冠词的用法。

1.An owl can see in the dark.2.The whale is in danger of becoming extinct.语法书上说，第1句的猫头鹰和第2句的鲸鱼都表示某类动物，为什么1句用不定冠词，第2句用定冠词了？

问题 fail in the examination中的in可以省略吗

Most of the students failed in the final examination.有人说这里的 in 可以省略，是这样吗？

问题 nowhere分析（have nowhere to turn）

The workers say they're trapped in a cycle of debt and have nowhere to turn in Jordan.请问，“nowhere是名词，并且和后面的不定式动状关系”这样分析是对的吗？

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 not so..as的理解与用法

Sending warplanes to bomb India’s nuclear neighbour earlier this year was not so much an act of strength as recklessness that could have ended in disaster. 请问老师，这里的not是否有误？感觉意思讲不通呀！

问题 on hearing是什么用法

________ the news of his father's death，he burst into tears．A. After hearing B. On hearing C. Having heard D. While hearing为什么D选项不能选呢？而只能选B?