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问题 非限制性定语从句

The physicist has made a discovery, ______ of great umportance to the progress of science and technology.A.which I think is  B.which I think it is请问选A和选B有什么区别？

问题 逗号的作用

Commenting on the find , snake expert Robert Henderson from the Museum of Natural History ,  said: “Worldwide new species of frogs are being discovered and described quite regularity.请问老师，这个句子里said前面为什么要加逗号? 去掉可以吗？不明白这个逗...

问题 非谓语做定语是主动还是被动呢

three students fell thorough the ice into the ____(freeze) water.这不是被冰住的水吗，为什么答案会是freezing呢，求解!

问题 without的用法

如下“The member of Detroit's retired workers has swelled,benefits were not adequately funded and the city's economy isn't strong enough to take care of both without self-defeating tax increases. "请问这里的without该怎么理解呢 而且为啥他一个介词后面跟了个主谓结构？or...

问题 when和while的区别

例句： I broke a glass while(as, when)I was cooking the dinner.             I was cooking the dinner whenI broke a glass.疑问：这两句话排除语法不同，实际上表达的意思是一样的对吗？

问题 Where 的成分

Reader's Digest看到这样一句话：Where at first all that was demanded of him in school was a sign, now Matthew's teachers wanted a sign plus a vocalization of the word the sign represented.请问老师，此处的where 该怎么理解？是第一句中主语从句的一部分吗？

问题 并列句的分析

You'll also hear both pronunciations,and maybe a vowel sound that's slightly in between the two.请问1.and后的句子,主语还是并列的you'll吗?   2.that's slightly in between the two 这部分该怎么理解,是句子的什么成分?

问题 more than连接的什么成分

It is home to 700m people—more than the European Union, Latin America or the Middle East.为什么是人和组织和地区相比较？怎样补充缺失内容？谢谢各位专家老师。

问题 close to是复合介词是么

Get the hook close to the fish.此句的close to 是复合介词是么? 由close to引导的介词短语做定语修饰前面的hook对么？

问题 现在分词在句子里的成分

She was at the table working hard.此处working是做什么用的，我为何觉得这个句子有点颠倒呢？she was working hard at the table.这样写是不是比较顺呢?

问题 介词before接动词不定式

The rope was short as he cut some away before to tie the fish.原文出自人教版高中英语教材选修三。为什么介词before后面接了动词不定式？

问题 为什么这里省略了be动词

If all the world's a stage, and all the countries merely players请问这里为什么省略了be动词？—摘抄自China Daily

问题 that引导的从句

Similarly,the $24600 per year that a married couple with one working spouse or $32400 that a married couple with two working spouses can generally expect to get is above the federal poverty level for a couple（$16020）该句中的that是定语从句吗？

问题 that定语子句的分析

There are things in the park that cannot be seen anywhere else in the world.  这里的that 定语从句修饰park 还是things呢。为什么呢？能分析一下么我认为是things ，当以前老师教过关系代词要紧跟先行词，所以我有点混乱

问题 inclusion 的用法与理解

Although dragons have been associated with China for thousands of years, the panda's inclusion into the Chinese psyche is far more recent. 虽然龙和中国的渊源已有数千年之久，大熊猫融入中国人的心灵却是近几年的事。