常见的when引导的时间状语从句.ppt

when 引导的时间状语从句 I will come here tomorrow. I will come here at 3:00. I will come here in the morning. I will come here when you are not busy. 时间状语若为句子，则该句称为时间状语从句。 时间状语从句就是在复合句中表示主句动作发生时间的状语从句。when引导时间状语从句时，意思是“当······的时候”。 Ill call you when I get there. 我到那里时就给你打电话。 When I got home, my wife was cooking dinner. 我到家时，我妻子在做晚饭。 The boy will be a writer when he grows up. 这个男孩长大时将成为一名作家。 Attention 1， 主句从句时态要一致 主句过去 从句过去 When he was 7, he could swim. 主将从现 主祈从现 主情从现 When he comes , we will start the meeting. When you are ill, you must see a doctor. Be careful when you cross the street(大街). 2, 主句从句位置问题 when从句放主句前后都可，从句防主句之前需逗号隔开。 1. Well start out ____ the teacher comes. A. when B. while C. though D.but 2.----Please remember to say goodbye to Mr.Smith when you ____ tomorrow. ----Sure, I will. A. leave B. will leave C. left D. have left