(时间状语从句).ppt

,初中英语人教版七年级下册,初中英语人教版八年级下册,初中英语外研版七年级下册,初中英语外研版八年级下册,初中英语仁爱版七年级下册,初中英语人教版七年级下册,初中英语人教版七年级下册,语法透析,考点大观,易错辨析,通关训练,*,大家好,*,*,大家好,*,解析,*,大家好,*,*,大家好,*,*,大家好,*,*,大家好,*,*,大家好,*,*,大家好,*,*,大家好,*,*,大家好,*,Unit6 Topic2,语法专项课件,（时间状语从句）,初中英语仁爱版八年级下册,时间状语从句的分类,1.,表示,同时性,，即主从句的谓语动作同时发生或几乎同时发生。包括：,when,（当,时候），,while,（当,时候），,as,（当,时候），,as soon as,（一,就,）等。,2,大家好,时间状语从句的分类,Mary cut her finger,when,she was making a kite.,As,she was reading the newspaper,grandma fell asleep.,3,大家好,时间状语从句的分类,2.,表示,先后,，即主句的谓语动作发生在从句之前或之后。包括：,after,（在,之后），,before,（在,之前）。,4,大家好,时间状语从句的分类,After,we heard the news,we were all excited.,He made a plan,before,he went to London.,5,大家好,时间状语从句的分类,3.,表示,持续,。,until,（直到,才,/,为止,),6,大家好,时间状语从句的分类,1.He waited for his father,until,it was twelve oclock.,2.He didnt go to bed,until,he finished his homework.,7,大家好,易错点,1,Once,you see her,you will never forget her.,Please call me,as soon as,you arrive America.,主将,从现,主祈,从现,8,大家好,易错点,3,when/while/as,的区别,9,大家好,易错点,3,when/while/as,的区别,as:,1.She came up,as,I was cooking.,（同时）,10,大家好,易错点,3,when/while/as,的区别,when:,1.,When,we were at school,we went to the library every day.,（在一段时间内）,2.Sorry,，,I was out,when,you called me.,（,call,为短暂性动词）,3.,When,I got to the airport,，,she had left.,（,got to,后发生）,11,大家好,易错点,3,when/while/as,的区别,while:,1.,When,While,As,we were dancing,，,a stranger came in.,（,dance,为延续性动词）,2.Please dont talk so loud,while,others are working.,（,work,为延续性动词）,12,大家好,【,典例,1】I didnt believe he could drive _ he told me.,A.once B.while C.since D.until,考查时间状语从句连接词。句意：直到他告诉，我才相信他会开车。,notuntil,直到,才，固定搭配，答案选,D,。,13,大家好,【,典例,2】Henry will give us a report as soon as he _.,A.arrives B.arrived,C.is arriving D.will arrive,考查时间状语从句连接词。句意：亨利一回来就给我们作报告。,as soon as,为时间状语引导词，遵循“主将从现”原则，故答案选,A,。,14,大家好,语法加油站,总结本单元的语法知识，你掌握了吗,1.,when,表示,“,当,的时候,”,。从句中既可用延续性动词，又可用非延续性动词。从句中的动作既可和主句的动作同时发生，又可在主句的动作之前或之后发生。,如：,When I came into the room,I found him lying there asleep.Mary was having dinner when I saw her.When you meet a word you dont know,look it up in the dictionary.,时间状语从句,15,大家好,语法加油站,总结本单元的语法知识，你掌握了吗,2.,While,while,表示,在,的时候,、,在,期间,。它强调主句的动作与从句的动作同时发生或主句的动作发生在从句的动作过程中。,while,从句中必须是表示动作或状态的延续性动词。,如：,The weather was fine while we were in Beijing.,While we were swimming someone stole our clothes.While my wife was reading the newspaper,I was watching TV.,16,大家好,语法加油站,总结本单元的语法知识，你掌握了吗,3.,as,1,）表示,“,当,时,”,、,“,和,同时,”,。从句中多用表示动作的动词，而不用,be,动词或表示感觉、理解、知道这类动词。,She dropped the glass as she stood up.2,）用于平行的动作中，表示,“,一边,一边,。常指一个主语同时进行两个动作。,He sang as he worked.3,）用于平行发展的结构中，表示,随着,。,As it grew darker it became colder.As he grew older he became more confident.,17,大家好,语法加油站,总结本单元的语法知识，你掌握了吗,4.,after,before,as soon as,notuntil,after,表示主句的动作发生在从句动作之后；,before,表示主句的动作发生在从句动作之前；,as soon as,表示,“,一,就,”,；,notuntil,表示“直到,才”。,You should make a good plan before you do anything important.,Ill call you as soon as I come back.,She didnt go to bed until her mother came home.,18,大家好,Bye Bye,19,大家好,