過去進行時之when 和while的區(qū)別

1、李華蓉老師 過去進行時中的when和while,湖南省石門縣澧斕中學,rammar,What was Jay Chou doing at 8 this morning?He was ,He was running.,from 8 to 9 yesterday morning,She was having a Chinese class.,When Jim called him up,When Jim called him up, he was sleeping.,While Tom walked to school,While Tom walked to school, he was eati

2、ng.,?, I was walking to school when I saw a cat in a tree. When Sally arrived home, her mother was cleaning the house. 主句的動作是持續(xù)性的，而從句動作是短暫性的，此時用 _ 引導時間狀語從句，主句用 _ 時態(tài)，從句用一般過去時態(tài)。,when,過去進行,（一）, While I was sleeping in the bedroom, my father came in . David fell while he was riding his bike. 主句的動作是短暫性的，

3、從句的動作 是持續(xù)性的，此時用 _ 引導從 句，主句用 _ 時態(tài)，從句 用過去進行時態(tài)。,while,一般過去,（二）, While Andy was waiting for the bus, he was reading a newspaper. He was cleaning his car while I was cooking. 主句和從句的動作在過去的某時刻或某 段時間同時發(fā)生，而且動作都是持續(xù)性 的，此時用 _ 引導從句，而且主 句和從句都用 _ 時態(tài)。,while,過去進行,（三）,Exercise,when or while? 1._the telephone rang, he

4、 was reading . _ he was reading , the telephone rang. 2. Bob was sleeping _his mother was cooking . 3. I was studying here_the rainstorm came. 4. Dont use your phone_ you are driving.,When,短暫性,While,延續(xù)性,while,同時發(fā)生,when,延續(xù)性,while,短暫性,對照關(guān)系,when 和 while用法小結(jié),主句的動作是持續(xù)性的，而從句動作是短暫性的，此時用 引導時間狀語從句，主句用 ，從句用一般

5、過去時態(tài) .,主句的動作是短暫性的，從句的動作是持續(xù)性的，此時用 引導從句，主句用 時態(tài)，從句用過去進行時態(tài).,when,過去進行時態(tài),while,一般過去,when 和 while用法小結(jié),主句和從句的動作在過去同時發(fā)生，而且動作都是持續(xù)性的， 此時用 引導從句,而且主句和從句都用 時態(tài)。,while,過去進行,Homework,Fill in the blanks. 1. What _ you _ (do) at 9 yesterday? 2. I _(watch) TV when my mother _ (come) in. 3. He_ (do) his homework at 9 this morning. 4. The children_ (play) soccer a