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问题 be essential to doing sth用法疑问

Practice is essential to becoming good at something.老师,请问这里to 后面为啥加ing形式becoming 呢?谢谢。

问题 对过去分词时间用法疑惑

...中过去分词called只表示被动但我没有看出来过去分词发生时间在谓语动词之前?请老师讲解一下,非常感谢。(听曹老师讲解过,过去分词要发生在谓语动词时间前,可是这个我没有看出,我只看出了被动)

问题 one of the few students语法分析

请问一下:one of the few students 如何分析它结构?可以说是 one of 修饰 the few students 吗?

问题 请帮忙划分两个句子成分

... life.请哪位老师给这两个句子划一下成分,如有不好理解地方,还麻烦给一点讲解,谢谢。

问题 nothing more adj than 用法

They often spend entire afternoons on nothing more productive than mahjong.请问上面句子是什么意思?我困惑在 nothing more productive than mahjong。相关链接如下:http://www.yygrammar.com/Article/201105/2237.html 

问题 名词短语成分分析(涉及同位语)

More than two million candidates have signed up for the upcoming exam around China, a 13.6 per cent increase from 2016, according to enol.cn.看着像是 more than two million candidates 同位语,不知我理解对不对。

问题 just so用法

...递什么含义?其次,to position the key just so 是the need  后置定语,是吗?

问题 have since been用法(since放在谓语中间)

Perhaps all the deficiencies have since been rectified. since 在这什么用法?怎么在 have been 中间?

问题 all of us语法分析(定语还是同位语)

all of us 语法分析:of us 是什么成分?是定语还是同位语?

问题 过去分词表被动与表完成理解与区别

过去分词什么时候只表被动,什么时候只表完成,什么时候既表被动又表完成?形容词化了分词和过去分词又有什么区别? 

问题 be frequent to happen用法有错吗

Sudden rainstorms are frequent to happen on the coast.有人说这里 to happen 用法有错,请分析,谢谢!

问题 现在分词完成式(having won)用法

Every president who took office in the 20th century did so having won the popular vote.请问这句话中 having won 是什么用法,以及句子中发生事件(did so, having won)时间顺序.

问题 disperse the world over中over用法

Thousands of its fighters have dispersed the world over.请问老师,这里over是介词后置吗?不然意思讲不通。

问题 colored和colorful作为形容词使用修饰名词区别

colored和colorful作为形容词使用,修饰名词,究竟有什么本质区别?还是可以通用呢?

问题 关于any of疑问

他没有告诉过我关于他朋友事情He didn't tell me any of his friends.He didn't tell me anything of his friends.He didn't tell me any about his friends.He didn't tell me anything about his friends.这四句都对吗?