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问题 as though/if 虚拟语气的时态

The computer "teacher" was talking with its students as though it _____ a human teacher.请问各位老师，这个空填had been还是were。我看网上有答案说是were，我认为had been对。谢谢各位！

问题 比较结构的理解问题

1. Many fossils of manlike skulls and skeletal fragments more advanced than those of Beking Man have been found.2. There appeared a form of man with a less heavily built face and a larger brain case than (those) of homo erectus.those指什么? 整个比较结构如何补全（可能语法上不应...

问题 as的用法

Some topics were off limits for the Premier,Some topics were off limits for the Premier,suggested as more appropriate for conversations between President Bai Chunli of the Chinese Academy of Sciences (CAS) and me.请问老师，suggested as more appropriate for conversations between President Bai Ch...

问题 take sb doing sth与take sb to do sth的用法与比较(续)

上次我问过您类似的问题(http://ask.yygrammar.com/q-7231.html )，但还是有些疑惑：take sb. to do sth.是否可以有与take sb. doing sth.一样的用法？就是说可不可以像下面那样说呢？Ian took us out to sail on the lake. Frances took her daughter to walk e...

问题 并列句中后面一个动词be的省略问题（前后性质不一样）

并列句中前半句用了系动词，后半句被动句中be动词可以省吗？Today, of course, he is the world's top diplomat and his formative years shaped by conflict, hunger, and lack of opportunities—together with a meeting with President John F.来自今天的手机版CCTV NEWS.

问题 but的理解难点（If I might but see my native land...)

If I might but see my native land, I would die a happy man. 请问这个句子如何翻译，尤其是其中的 but 是什么意思？

问题 be badly short of的用法疑问

我在前面一个解答中读到专家老师的一个解答中有这样一句话：Our school is badly short of English teachers.  我们学校非常缺乏英语教师。我对 badly 修饰 short of 感到疑问，因为我们老师说过，badly 表示程度时，有两个意思是：一是...

问题 新人提问关于 express something as a percentage的表达

...sp; a percentage of profits如何理解？第一次提问，不知道网站的规则，辛苦老师解答。

问题 know down wall在经济学人中的理解

...s old as civilization, of course: even Jesus had 12 co-workers.请问文中的"knock down walls"怎么理解？

问题 副词的最高级或比较级前的the什么情况下可以省略

Mike came first in the race. He ran the fastest.Mike is the worst at drawing of us three. 上面2句中的the应该都是副词吧？是否可以省略呢？想知道副词的最高级或比较级前的the什么情况下可以省略？

问题 时间和日期中“零”的表示方法和理解

牛津英语用法指南 第三版(Swan) 在时间、日期表示法中:8点过5分：eight (oh) five 或 five past eight1305年=thirteen hundred and five 或thirteen O five其中：oh 和 O 不知道表示什么意思，请专家指教，谢谢！

问题 完全及物动词和不完全及物动词的准确定义

前面看到有网友在提问中说到什么“完全及物动词”和“不完全及物动词”，查了一本语法书，上面没有讲，在百度上查了一下，好像比较乱，想请专家老师明确一下，谢谢！

问题 who与whom用作表语的疑问

No matter who / Whoever he is 这个句子中 No matter who / Whoever 是做表语，whom 不能作表语，whomever 也不能，no matter whom 当然也不行，请解释一下为什么 whom 不能作表语，谢谢。相关问题见：http://ask.yygrammar.com/q-7574.html 

问题 分析一个句子中的四个of的用法

Proper, scientific study of the impacts of dams and of the costs and benefits ofcontrolling water can help to resolve these conflicts.请问：句中的四个of该如何分析？

问题 Be careful what you do.的句子成分

请问在 Be careful what you do 这个句子中，what you do 是什么成分？