状语从句 课件--高考英语一轮复习.pptx

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1、“”状语从句状语从句1（副词）1.He speaks English well.状语2.He is very smart.状语3.He goes to school by bike.状语（介词短语）（副词）什么是状语？什么是状语？4.To help my disabled aunt,I spend an hour working in her house every day.5.Seen from a distance,the farmhouse looked deserted.6.Just because I dont complain,people think Im satisfied.状

2、语状语状语（不定式）（分词）（句子）状语从句时间地点原因目的结果条件让步方式比较语法填空解题“3知能”1牢记连词词义牢记连词词义并能熟练运用是解答题目的先决条件；2牢记固定句式结构，确定从属连词；3根据主从句的逻辑关系确定状语从句的连接词。时间状语从句说明主句所描述的事件发生、存在的时间。（一）.时间状语从句：引导词 when,while,as;before,since,till,until,notuntil;as soon as,the moment,the minute,the instant,immediately,directly,instantly,once;whenever,aft

3、er,every/each time,next time,by the time,the first/last time,any time,the day/year1.when,while,as;连词含义用法when当时候可与延续性动词或非延续性动词连用；从句动作可以发生在主句动作之前、之后或与主句动作同时发生while当（正在做）时候只可与延续性动词连用；侧重于主句动作与从句动作相对比as一边一边；随着常与延续性动词连用；从句动作与主句动作同时或几乎同时发生while+进行时when+进行时/一般过去式He has played computer games for two days.pla

4、y:玩，延续性动词He close the door angrily.close:关，短暂性动词Researchers in Britain found that when French music was played,sales of French wines went up.英国的研究者发现，播放法国音乐时，法国葡萄酒的销量会增加。While watching TV,children do not merely absorb words and images.孩子们在看电视的时候，接收的不只是文字和图像信息。As he grew older,he became less active.随

5、着他逐渐长大，他变得不那么活泼了。特别注意：如果主句表示的是非延续性动作，而从句用延续性动词的进行时态表示在一段时间内正在进行的动作，则when,while与as可互换使用。When/As/While I was walking down the street,I came across an old friend.我正沿着大街走时，碰巧遇到了我的一个老朋友。2表示表示“一一就就”含义的词或短语含义的词或短语(1)有的名词(短语)或副词可引导时间状语从句，如：the moment,the minute,the second,the instant,immediately,directly,in

6、stantly等，另外as soon as也可引导时间状语从句，从句中用一般时态代替将来时态。For example,the moment you get on the airplane,start adjusting your biological clock to the destinations time.例如，你一上飞机，就开始按照目的地的时间调整你的生物钟。The boy ran off the minute he saw the owner of the orchard.那个男孩一见到果园的主人就跑开了。(2)在hardly.when/和no sooner.than.结构中，主句用

7、过去完成时，than,before或when所在的从句用一般过去时。I had hardly told him the news when he stopped listening.我一告诉他那则消息他就不听了。He had no sooner finished his speech than the students started cheering.他一完成演讲，学生就开始欢呼起来。特别注意:在hardly.when,no sooner.than.结构中，当hardly,no sooner位于句首时，主句要用部分倒装。They had hardly reached Edinburgh wh

8、en they were ordered to return to London.Hardly had they reached Edinburgh when they were ordered to return to London.他们刚抵达爱丁堡就接到了回伦敦的命令。3till,until和和not.until/till的用法的用法until,till两者均表示“直到为止”，引导时间状语从句。until可用于句首，而till不可放在句首，till一般不用于强调句型。肯定句中，其主句谓语动词必须为延续性动词，表示某动作一直延续到某时间为止。The father waited until h

9、is daughter had finished her homework.那位父亲一直等到他的女儿做完家庭作业。not.until.,not.till.两者均表示“直到才”，not所在的主句的谓语动词必须为非延续性动词，表示某动作直到某时间才开始。The baby didnt go to bed until/till his mother returned.这个婴儿直到他的妈妈回来才睡觉。4after,before引导的时间状语从句after表示“在之后”，before表示“在之前；还没来得及就”。He changed his name after he left his hometown.

10、离开家乡后他把名字改了。Before modern medicine changed the laws of nature,many children died of common childhood diseases.在现代医学改变自然规律之前，许多孩子死于一些常见的儿童疾病。(1)“It will be 时间段before从句”表示“在之前还要多久/过了多久才”。It will be half a year before I graduate.半年后我才毕业。(2)“It wont be 时间段before从句”表示“过不了多久就/没过多久就”。It wasnt long before w

11、e started.没过多久我们就动身了。5since引导的时间状语从句引导的时间状语从句since意为“自从以来”，从句的谓语动词一般是非延续性动词，主句的谓语动词一般是延续性动词。since从句的时态若是一般过去时，主句常用现在完成时或现在完成进行时。I have learnt English since I was a baby.“It is/has been时间段since从句(常用一般过去时)”They have been friends since they met for the first time in London.自从在伦敦第一次见面以来，他们一直是朋友。It is th

12、ree years since the war ended.It is three years since he lived here.6其他常见名词短语引导的时间状语从句其他常见名词短语引导的时间状语从句every time 每次each time 每次any time 任何时候 next time 下次all the time(在某段时间内)一直the first/last time 第一次/最后一次the day/year.那天/年Every time I meet her I always forget her name.每次我见到她时，我总记不起她的名字。The first time I met her,I thought her nice and honest.我第一次遇见她时，就觉得她友好又诚实。