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问题 as 的用法（涉及as when）

Some adventures were quiet - as when he found a lovely book about bears to read. And some adventures were loud - as when he discovered the trumpet.上面两个句子如果没有破折号和as，改写后的句子比较好理解：Some adventures were quiet when he found a lovely book about bears to ...

问题 report sth 与 report on st

He reported on the whole event to the minister. 他向部长 报告了整个事件。 句中的 reported 后面为什么要用一个介词 on 呢？我们不是通常直接说 report sth to sb 吗？

问题 except Sunday与except on Sunday的区别

We’re open every day except Sunday. 除了星期日， 我们每天都开门营业。请问句中的 except Sunday 可以换成 except on Sunday 吗？若可以换，它们的区别是什么？若不可以换，原因是什么？谢谢！

问题 by which还是for which, on which,

Genes are the instructions ______ which parents’ characteristics are passed on to their children.  所给答案是 by，但为什么不是 for, on, in 等介词呢？

问题 example is of 是何用法

One example is of children at the age of 6 or 7 painting flowers, fish. 请问老师，这个句子的句型结构？one example is of是何用法？painting flowers,fish是现在分词作children at the age of 6 or7后置定语吗？谢谢老师们。

问题 Fluency in English both on spoken and written.

on是介词，为什么后面可以接形容词spoken、written呢？怎么不说成speaking and writing

问题 in the street和on the street的不同之处​

in the street和on the street的不同之处

问题 On在此处什么意思，这句话怎么翻译

when falling at speeds up to 60 miles per hour, cats stretch their legs which increases their air resistance and reduces the shock of impact on hitting the ground.还有at speeds up to 中的up to 是：直到（达到）的意思吧

文章 高中英语新课标词汇-教学参考资料-design

...在其他名词前作定语，表示“设计……”。如： design consultant 设计顾问 design engineer 设计工程师 design staff 设计人员 design team 设计小组 design centre 设计中心 design department 设计部门 design studio 设计工作室 design work 设计工作 ...

文章 set one’s mind to 和 set one’s mind on 的用法比较

set one’s mind to 的后面通常接something，不接doing something；而set one’s mind on 后面可以接 something，也可以接 doing something。例如：I think anyone can lose weight if they set their mind to it. 我认为任何人只要下定决心都能减肥。（摘自《朗文当...

问题 怎么理解make as though 含义和用法?

... a painter. He had not seen him for a week. Stroeve made as though he were about to knock, and then turned to me with a gesture of helplessness. I saw that he was panic-stricken."Supposing he's dead?""Not he," I said.I knocked. There was no answer. I tried the handle, and found the door unlocked. I ...

问题 at the foot of与on the foot of的对错与区别

我原来以为只能说 at the foot of，不能说 on the foot of，但今天也看到有 on the foot of 的说法，请问这样说对吗？如果对，它与 at the foot of 有区别吗？

问题 what date, on what date, at what date的用法与比较

On what date are you travelling?上面的句子出自高中英语新教材人教版必修一第1单元（p29）。请问这里的 on what date 可以说成 at what date 吗？另外，这样用的介词可以省略吗？希望有书上的例子作证明。谢谢！

问题 一道语法填空题

Museums make their unique contributions to society since 1997, each year about May 18, International Museum Day                   (celebrate ) ,with the aim of increasing public awareness about roles of museums in developing society,       ...

问题 up的词性(be high up on the cliffs)

The light was high up on the cliffs.请问这里的 up 是介词还是副词？为什么？