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问题 有时候特指还是类指不好判断

比如，a book about a panda 这个a panda是不确定特指还是类指？根据语境吗？再比如这个句子:She will also share some experiences related to involvement of end-users in the design process in different scenarios of Brazil.end-users这里是特指还是泛指？

问题 求staff的用法详解

...注意的用法呢？比如前面加量词后需加s吗？比如 200 staff or staffs？谓语动词用什么形式（单数还是复数）？staff 表示几个公司的员工时可以加s吗？如 the staffs from different companies，此处纯属生造，只想辩其正误，谢谢老师们！

问题 主语补足语的判断与分析

Reward or punishment are meted out quite independent of human interference.quite independent of human interference 是句中什么成分？什么意思呢？ 语法如何分析这一短语结构？麻烦老师从语法方面来分析。 是主语补足语吗？

问题 “逗号+with”的句子问题

...的句子问题。Despite this characteristic, the most common drawback for any PD controller, with unknown dynamics or even with unmodeled dynamics is the error signal differentiation. 句中为什么用逗号和with将主语和谓语隔开？这是什么语法结构？

问题 这句话是什么结构？怎么理解？

Had I started specializing in my sport at an earlier age, I doubt I would have lasted for as long as I did or had the same level of success.

问题 分析句子成分(where作什么成分)

能帮我分析一下这个句子的成分吗？This is the name of a wood, where, presumably, there are or used to be bears.where在这里是什么成分呢？

问题 两个定语从句罗列

...套四级试题阅读中一句话：We are rediscovering Dewey and Montessori and a lot of the practices that they pioneered that have been forgotten or at least put aside."practices "后面跟了两个that引导的定语从句，看起来是并列关系。但是中间没有用连词and。请问这...

文章 at home 和 in one’s home 的用法

at home和 in one’s home这两个短语的意思都是“在家（里）”，如果用at，在home前面不能用其它词语；如果用in，在home前面必须用相应的形容词性物主代词。例如：People will have robots in their homes. 人们家里将有机器人。（人民教育出...

问题 一道关于比较句型的选择题

Moving from beginning to end by order of time, narration relies on a more natural pattern of organization than ________.A. will other types of writingB. do other types of writingC. on other types of writing D. other types of writing感觉选择 B D 都可，各位老师看看可以么

问题 we never have snow for Christmas.

老师！以上句子翻译好翻译，但这里为什么用for，不用on，圣诞节表示某一天，按理说应该用on。英文我们要掌握英语语言规则，如果没掌握的话，英文翻译中文可能可以翻译的来，但中文翻译英文，就不好翻译了。

问题 现在完成时时表习惯

From then on, I ______ to the forest four times a year.  A. had gone B. have gone C. went D. will go曹老师，请问，这个题的用法是不是和前几天提问的那个题一样，都是现在完成时表习惯？所以要选B。From then on, I have gone to the...

问题 like在这句话中是连词吗（疑难问题）

...try saw rain, like it hasn't seen since the 1760s when King George was on the throne. 2014年1月，这个国家的人民看到下起了雨，1760年代以来自乔治国王荣登王座以来还不曾见到这样的降雨。▲我在柯林斯字典中查到如下解释，但是不确认这种用...

问题 because of后可接哪些从句

...用于what从句前面。如： He felt angry because of what you said about him at the meeting. 请问：除what 从句外，because of后还可哪些从句？

问题 逗号后是并列成分还是状语

German is one of the widely spoken languages in the history, used by about one out of nine human beings in the world. 请教老师，逗号后的部分是German is 的第二个表语？还是应该把used by one out of nine human beings in the world 理解为过去分词作前半句的状语？...

问题 whether to be hopeful... 这里是否可以省略

曾看到这样一句话：The principal’s inbox has been flooded with emails from students wondering whether to be hopeful about a new teacher. whether to be hopeful... whether后是否有省略，可不可以这样用呢？