初中·課本中不會教你的 306　o'clock和hour

306　o'clock和hour

1　o'clock 是of clock的縮寫，表示“……時……點鐘”，指鐘表上的某一時刻，時間的某一點，用于正點，“幾點幾分”不可用o'clock。

It's six o'clock in the morning. 時間是早上6點鐘。

A： What time is it? 幾點了 ?

B： It's ten (o'clock). 10點了 。（o'clock也可省略 ）

It's ten past five.（正）5點10分 。

It's ten past five o'clock .（誤）

2　“在幾點”要用at ，如：“在4點鐘”是at four o'clock，“在9點鐘”是at nine o'clock。

She came at three o'clock and left at seven o'clock . 她3點鐘來的，7點鐘離開的。

3　hour 意為“小時”，是指時間的長度單位；“1個小時，幾個小時”要用hour ，為one hour， several hours，不可用o'clock。

I saw him an hour ago. 我在一個小時前見到他的。

How many hours are there in a day? 一天有多少個小時？

He has waited for you for three hours . （正）他已經(jīng)等你3個小時了 。

He has waited for you for three o'clocks . （誤）