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问题 分析介词短语在句中的成分

you must be chilly without a coat on.这个介词短语是条件状语吗？on作为副词跟在名词后面是什么结构?

问题 说It is sure that...（从句）对吗?

可以说 It is certain that…，比如：It is certain that he will win.但是可以说说It is sure that…（从句）吗？比如：It is sure that he will win.

问题 介词by的用法含义辨析?

1) Four years ago Donald Trump pulled off a major surprise by becoming the first republican presidential candidate to win Michigan since 1988.2)Lower turnout allowed Trump to eke out a victory by about 10700 votes out of more than 4.5 million ballots cast in the state.上述2句，第一句中的by ...

问题 关于as needed的用法

我看到一个说明书上有一句话：apply the cream on the skin of discomfort 3-4 times a day and thereafter on an as needed basis.这里面as needed是什么用法？

问题 一道单选题(时间介词)

The meeting was held in the week ending on a Sunday in August while the survey was conducted in the week ending ________ September 3.A. on  B. with  C. in  D.不填请问应该选哪个？谢谢！

问题 冠词an是不是多余的

Zack is strange;on one occasion,he is warm and passionate,an on another,he is cold and unfriendly.句中an是不是多余的？

问题 表示整个类属的名词可以既用定冠词又用复数吗

The caterpillars feed on a wide range of trees, shrubs and plants. 毛虫以各类树木、灌木和植物为食。这个句子中的 the caterpillars 是表示整个“毛虫”类属吧？为什么既用复数还要加定冠词呢？应该是只取其一吧！比如：Caterpillars feed on a w...

问题 这里的it到底指什么

We play soccer with our friends after school. It is relaxing.这里的it是指前面整句话还是只指play soccer啊？

问题 不同的现在分词形式作状语的区别（一般式、完成式、主动式、被动式）

...p;over Texas as it returnedto the earth on February 1, 2003, _____ all seven astronauts aboard.A.having killed        B.killing         ...

问题 what the components do 和 in relation to the whole system 的关系

Although each one has a tremendous number of technical details in its internal makeup, we’re going to ignore these details and concentrate on what the components do in relation to the whole system。老师们好，我想请教一下这个句子中的 what the components do 和 in relation to the w...

问题 指代上文it与one的区别

我的理解是it是上文所提到的东西，而且下文如果用it指代的话，完全就是上文那个东西，但我的疑问是如果前面的事物也是泛指呢，就不清楚后面到底是不是一模一样，比如下面这句话：Each misfortune you come across will carry with it th...

问题 as it was 在句中的成分

I think I prefer this room as it was,before we decorated it.请教老师这句话的as it was是prefer的宾补吗，还是先行词room的限定性定语从句，抑或是状语从句？

问题 句子改错题(as we know it )

Smoking as we know it is hazardous to health. I wish I would quit it. 这是个改错题，应该有一处错误。可学校老师说没错，我觉得第一句应该去掉it。请老师指教，谢谢！

问题 They love it when the post arrives 这个句子怎么理解

这里的it起什么作用，那后面的从句算是时间状语还是定语还是其他？这里的it和下面这个句子的it是同一类吗？He want it to be his turn.

问题 all 能作it的同位语吗？

以下两句子：1. They've eaten it all.2. They left me to tidy it all up myself. Charming, wasn't it?我记得 all 作同位语要求是三者或三者以上。以上句中 all 分别是什么语法成分？求解答，谢谢！