it's time的用法
It's time…句型是中学英语里使用频率较高的句型,其意为“该是……的时候了”.用法灵活多变,也是大家以掌握的句型.现就其有关句式归纳如下：
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.
it is time to和it is time for的区别是什么？
it is time to和it is time for的区别是：用法不同。1、it is time for强调：是时候做某事了，重点在于做某事，后面要跟名词或者动名名词。It is time for hens to brood.该是母鸡孵蛋的时候了。2、it is time to强调：是时候做了某事的，重点在于做某事的动作，后面跟动词原形或动词短语。It is time to go beyond the shibboleth that conventional forces cannot deter.是时候摆脱那些传统力量无法遏制的陈规陋习了。注意事项：从句谓语通常用过去时态或should＋动词原形：It’s time we started.我们该动身了。It is time that you left here.你该离开这儿了。It’s time you studied hard.你该努力学习了。有时也用should+动词原形或用过去进行时，有时甚至将should省略（即只用动词原形，为非正式的美国口语），其中的It is有时根据情况也可改为It was，其后的时态不受影响。