状语从句讲解公开课.pptx

Welcome to the English show!Lecturers:Sallow Hung状语从句状语从句1.时间时间状语从句状语从句2.条件条件状语从句状语从句3.原因原因状语从句状语从句4.地点地点状语从句状语从句5.让步让步状语从句状语从句6.目的目的状语从句状语从句7.结果结果状语从句状语从句8.方式方式状语从句状语从句引导词引导词 as while when before after until(till)as soon as when,while,as,after,as soon as ,until 等等都可以都可以 引导引导 时间状语从句。时间状语从句。when 从句谓语动词可以是从句谓语动词可以是延续性动词延续性动词和和瞬间动词瞬间动词。while 从句谓语动作从句谓语动作必须是延续性必须是延续性的，有时表示的，有时表示对比对比。as强调强调主语主语是是同一个人同一个人，主句谓语动词与从句谓语动主句谓语动词与从句谓语动 词的动作词的动作同时发生同时发生。until肯定句中肯定句中,“一直一直为止为止”;notuntil“直到直到才才as soon as 引导的时间状语从句，译为引导的时间状语从句，译为“一一就就”，表示表示从句动作一发生，主句的动作马上就发生从句动作一发生，主句的动作马上就发生从句动作一发生，主句的动作马上就发生从句动作一发生，主句的动作马上就发生。易混点while，when，as soon as,before,after 1）Please tell me _ you get there.2）_we left,it began to rain.3）He was reading _ I was watching TV.4）I like swimming _ my sister likes running.5）Please think it over _ you answer it.6）It was raining _he reached home.语法复习语法复习 时间状语从句时间状语从句选词填空选词填空广告时间广告时间while，when，as soon as,before,after 1）Please tell me _ you get there.2）_we left,it began to rain.3）He was reading _ I was watching TV.4）I like swimming _ my sister likes running.5）Please think it over _ you answer it.6）It was raining _he reached home.as soon as/when When when/while while语法复习语法复习 before when时间状语从句时间状语从句 选词填空选词填空 条件状语从句表示主句中的某一动作或状态条件状语从句表示主句中的某一动作或状态是在什么情况或条件下发生的。是在什么情况或条件下发生的。条件状语从句引导：条件状语从句引导：if,unless (除非除非)e.g.Well come to see you on Saturday if we have time.复合句集团有限公司的基本规章制度复合句集团有限公司的基本规章制度时态一致主过从过主过从过主将从现主将从现主现从需主现从需条件状语从句一般由条件状语从句一般由_引导，它和时引导，它和时间状语从句一样，当主句是一般将来时间状语从句一样，当主句是一般将来时或含或含有情态动词或祈使句有情态动词或祈使句时，从句用时，从句用_ 时态时态,即即_原则原则【有奖问答有奖问答】If you_(be)ill,you must go to see a doctor.If I go there,he _(go)with me.if一般现在时一般现在时主将从现主将从现arearewill will gogo考点语法复习语法复习 1）If he _(finish)his work early,he can go out.2）If he arrives there,he_(phone)us.3）If you _(be)free tomorrow,please help him.4）If we _(break)the rules,we will get a fine.5）Unless you speak to him first,he _(not speak)to you.6）If she _(have)time tomorrow,she will go to visit you.条件状语从句条件状语从句用括号里的词的正确形式填空用括号里的词的正确形式填空语法复习语法复习 1）If he _(finish)his work early,he can go out.2）If he arrives there,he_(phone)us.3）If you _(be)free tomorrow,please help him.4）If we _(break)the rules,we will get a fine.5）Unless you speak to him first,he _(not speak)to you.6）If she _(have)time tomorrow,she will go to visit you.finishes will phone are break wont speak has条件状语从句条件状语从句用括号里的词的正确形式填空用括号里的词的正确形式填空单项选择单项选择单项选择单项选择1._ you eat old food,you may be ill.1._ you eat old food,you may be ill.a.Before b.Until c.If d.Which a.Before b.Until c.If d.Which 2.We wont have our sports meeting if it _tomorrow.2.We wont have our sports meeting if it _tomorrow.a.rains b.will rain c.rained d.rain a.rains b.will rain c.rained d.rain 3.He _ wait until the rain _.a.wont,will stop b.wont,stop c.will,stops d.will,will stop a.wont,will stop b.wont,stop c.will,stops d.will,will stop 4.As soon as Jane _ here,Ill post the letter to 4.As soon as Jane _ here,Ill post the letter to Mike.Mike.a.leave b.will leave c.leaves d.left a.leave b.will leave c.leaves d.left 5.It was already five oclock _ we got home.5.It was already five oclock _ we got home.a.when b.while c.because d.if a.when b.while c.because d.if 抢答题抢答题一一.选择选择恰当的引导词恰当的引导词二二.单项选择单项选择巩固练习巩固练习