延续 性动 词
非延 续性 动词
1 . While John was playing the piano, Mary left the house. 延续性动词 John was playing the piano when Mary left the house. 非延续性动词 2. While John was cleaning the room, Mary turned on the radio. John was cleaning the room when Mary turned on the radio. 3. While John was shopping, Mary took the car to the car wash. John was shopping when Mary took the car to the car wash.
1. 以when和while引导的时间状语从句 1) 延续性动词和非延续性动词
瞬间结束。 如: work、study、drink、eat等。 非延续性动词指动作极为短暂，瞬间结束。 如: come, go, start、begin、hit、等。
When 从句一般过去时，主句过去进行时。 While 从句过去进行时，主句一般过去时。
当两个动作同时持续发生的时候,主句 和while引导的从句都用过去进行时. e.g. I was watching TV while my sister was listening to the music.
While 过去进行时，过去进行时. 两个动作同时发生 (过去进行时， While过去进行时.) While 从句进行时，主句进行时。 My father is at home. He is listening to music while he is reading a book. 他正在一边听音乐一边看书 。
醒来；弄醒，唤醒 wake up wake---- woke run to… 跑向… run--ran 开始做… begin/start to do sth. begin/start doing sth. 雨大、雪大用 heavy--heavily strong---strongly 风大用 ①捡起；拾起 ②用车接送 pick up 两者中的(一个) either 过去某事正在进行过程中发生另一件了某事 When 从句一般过去时，主句过去进行时。 While 从句过去进行时，主句一般过去时。 两个动作同时发生 While 从句进行时，主句进行时。
What were you doing at eight last night? I was taking a shower. What was she doing at the time of the rainstorm? She was doing her homework.
What was he doing when the rainstorm came? He was reading in the library when the rainstorm came.
What was Ben doing when it began to rain heavily? When it began to rain, Ben was helping his mom make dinner. What was Jenny doing while Linda was 同时发生 sleeping? While Linda was sleeping, Jenny was helping Mary with her homework. 同时发生
过去某事正在进行过程中发生另一件事 When 从句一般过去时，主句过去进行时。 While 从句过去进行时，主句一般过去时。 两个动作同时发生 While 从句进行时，主句进行时。
4b. Fill in the blanks with was, were, when or while.
At 7:00 a.m., I woke up. While ______I was ____making my breakfast, my brother_____ was listening to the radio. _______I While was eating, the radio news talked about a car accident near our home. 立刻，马上 My brother and I went