高中英语语法一点通状语从句文档格式.docx

1、如果主句表示的是短暂性动作，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，此时when, while和as可以互换。When/While/As I was walking down the street, I came across an old friend of mine.2. as soon as, immediately/directly/instantly, the moment/minute/instant, hardly/scarcely.when., no sooner.than.的用法这些从属连词引导的从句都表示从句的动作一发生，主句的动作随即就发生，常译为“一

2、就”。The moment I heard the voice, I knew my father was coming.No sooner had we arrived at the station than the train left.The boy burst into tears immediately he saw his mother.特别提醒：hardly/scarcely.when.和no sooner.than.引导时间状语从句时，主句常用过去完成时，从句用一般过去时，此外，当把否定副词hardly/scarcely和no sooner提到句首时，要用倒装结构。I had

3、hardly got home when it began to rain.=Hardly had I got home when it began to rain.3. until, till和not.until的用法1 肯定句：主句的谓语动词必须是延续性动词，意为“某动作一直延续到某个时间点才停止”。He remained there until/till she arrived.You may stay here until/till the rain stops.2 否定句：主句的谓语动词必须是非延续性动词，意为“某动作直到某时才开始”。He wont go to bed until/

4、till she returns.3 till不可以置于句首，而until可以。Until you told me I had no idea of it.not.until句型中的强调和倒装I didnt have any idea of it until you told me.=It was not until you told me that I had any idea of it.=Not until you told me did I have any idea of it.4. before的用法1 若表达“还未就；不到就；才；还没来得及就”时，要用连词before。We ha

5、d sailed four days and four nights before we saw land.He announced the decision before I could stop him.2 “It will be+一段时间+before”表示“还要（时间）才”；“It wont be+一段时间+before”表示“用不了（时间）就”。It will be half an hour before the city returns to normal.It wont be a year before we meet again.5. since的用法since从句谓语动词一般

6、是非延续性动词，主句的谓语动词是延续性动词，since从句的时态若是一般过去时，主句的时态则用现在完成时或者现在完成进行时。I have written home four times since I came here.She has been working in this factory since she left school.6. every time, each time, next time, the first time, any time等名词短语引导时间状语从句，表示“每当；每次；下次”等。Every/Each time I was in trouble, he woul

7、d come to help me out.Next time you come, do remember to bring your son here.The last time he saw James, he was lying in bed.2、地点状语从句引导地点状语从句的从属连词where和wherever指具体地点时，从句可位于主句之前或者之后，表示抽象地点时，从句要放在主句之前。He lives where the climate is mild.You are free to go wherever you like.Where there is a will, there

8、is a way.Wherever there is smoke, there is fire.注意区分where引导的定语从句和地点状语从句Youd better make a mark where you have any questions. （状语从句）Youd better make a mark at the place where you have any questions. （定语从句）3、原因状语从句引导原因状语从句的从属连词主要有：because, as, since, now that, in that等，每个连词的含义和用法不尽相同。连词位置含义语气能否回答why能否

9、被强调because（因为）主句前或后直接因果关系强能as（由于）双方都知道的原因弱不能since/now that（既然）主句前in that（既然）主句后I was absent from the meeting because I was ill.We had to walk all the way as we had no money for fares.Now that/Since everybody is here, lets begin our meeting.4、条件状语从句引导条件状语从句的连词有：if （如果）, unless （如果不，除非）, in case （倘若、万

10、一）, so/as long as （只要）, on condition that （条件是）, suppose/supposing that （假设、如果）, provide/provided that （如果）, given that （假如）等。Youll fail the exam unless you study hard.As long as you dont lose heart, you will succeed.Suppose/Supposing （that） they refuse us, who else can we turn to for help.In case t

11、here is a fire, what will we do first.5、结果状语从句引导结果状语从句的从属连词有：so that, so.that., such.that.等，注意so.that.和such.that.结构形式有所不同。so+形容词/副词+that从句so+形容词+a/an+可数名词单数+that从句so+many/much/few/little+名词+that 从句such+a/an+可数名词单数+that从句such+形容词+可数名词复数+that 从句such+形容词+不可数名词+that 从句He got up late, so that he missed t

12、he first train.Mike is such an honest worker that we all believe him.=Mike is so honest a worker that we all believe him.It is such fine weather that we all want to go to the park.He earned so little money that he couldnt support his family.注意区别结果状语从句和定语从句Mike is such an honest worker that we all be

13、lieve him.（结果状语从句）Mike is such an honest worker as we all believe.（定语从句）6、目的状语从句1. so that和in order that的用法这两个连词都表示“以便、为了”，它们引导的目的状语从句中需用情态动词，两者通常可以互换。We climbed higher so that we might see the scenes better.In order that we might see the sunrise, we started for the peak early.2. for fear that和in case的用法引导目的状语从句时，for fear that表示害怕或者担心某事会发生；in case表示以防出现某种情况。He told us to keep quiet for fear that we might disturb others.Take your raincoat, in case it rains.7、让步状语从句1. although, though, even though和even if的用法although和though两者意思相同，一般可以互换，都可以和yet, still和nevertheless连用，