Question

It is time __________

Answer 1

⑴ It's time for + n.“该是(干)……的时候了。”例:
Boys and girl, It's time for class.
同学们，该上课了。
⑵ It's time + (for sb.) to do sth. .表示“该是(某人)干……的时候了。”例:
It's time for you to clean the classroom.
该是你打扫教室的时候了。
It's time to go to school.
该去上学了。
⑶ It's time + that clause 时，that可省略，time可由high,about修饰，从句中的谓语动词有两种形式，或者用动词的过去式(be用were);或者用shoud + 动词原形(should不能省略)。此句型为虚拟语气句型，表示“现在某人该做某事了”。含有该事早该去做而未做，现在去做似乎都为时已晚的意思。例:
It's time (that)we went to bed.
我们该去睡觉了。
It's high time that the article were published.
发表这篇文章是适时的。
It's time you should do cleaning.
你该去打扫卫生了。
⑷ It's + the/序数词+ time +to do sth. 表示某人第几次做某事。例:
It is my first time to write letter in English.
这是我第一次用英语写信。
⑸ It's + the+序数词+ time+ that clause.也 表示某人第几次做某事。例:
It is my first time that I've even written letters.
这是我第一次用写信。
句型⑷ 句型 ⑸ 可以互换。

Answer 2

在It is time后面也可以接从句，其结构是It is time sb did sth/ It is time sb should do sth：。如：
You have been working for the whole morning; it is time you had some rest/ /it is time you should have some rest.

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Answer 3

It is time for class
It is time for the meeting
It is time to have lunch
....

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Answer 4

It's time to do sth
It's time for sth
It's time for doing sth

追答

到了……的时间了

Answer 5

后面一般跟不定式。意思是到...的时间了；该干....了