It is句式归纳之一
高中英语教材中出现了不少 It is 这样的句子。其中 it 表达的意义不同, It is 的含义也就不一样。本文在此将教材中出现过的这类句子罗列出来,供同学们学习时参考。
一 . It is time ( for sb. ) to do sth. 意为该是某人做某事的时候了。例如:
It's seven o'clock now. Mike, it is time ( for you ) to go to school.
7 点了。迈克,你该去上学了。
此句式的变异形式为: It is ( high ) time that sb did sth. 该句式表示某人现在该做某事了,从句中谓语动词常为过去式,说明现在应该做的事情。例如:
It's six o'clock. It is high time that we went home now.
6 点钟了。该是我们回家的时候了。
二 . It is when 可用于下面两种场合:
1. when 是连词,引导时间状语从句,意为的时候已是几点钟。例如:
It was eight o'clock in the morning when they went shopping.
当他们去买东西的时候已经是上午 8 点了。
2. when 是关系副词,引导定语从句,它本身在从句中作时间状语。例如:
It was July 10, 1992, when he graduated from Nanjing University.
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