1、状语从句状语从句一般分为九种，它们是：时间状语从句；地点状语从句；原因状语从句；条件状语从句；目的状语从句；结果状语从句；方式状语从句；让步状语从句；比较状语从句。一、时间状语从句；地点状语从句；原因状语从句；条件状语从句观察例句1We should go where the Party needs us most.2The last time she saw James，he was lying in bed.3If you see him，give him this note.4It will not be long before we meet again.5I have written
2、 home four times since I came here.6Now that everybody is here，lets begin our meeting.归纳用法1引导时间状语从句的有：(1)as ，after，before，directly，immediately，once，since，till，until，when，while，whenever 等连词。(2)as soon as，the moment/minute，every time，each time，next time，the first/last time，any time，by the time，the day
3、/year等短语。2引导地点状语从句的有：where，wherever，everywhere，anywhere等连词。3引导原因状语从句的有：because，as，since，now that等连词。4引导条件状语从句的有：if，unless，as/so long as，in case，on condition that，provided/providing(that)，supposing/suppose(that)等连词。名师点津1when，while与as引导的时间状语从句的区别连词从句谓语动词用法when延续性动词、非延续性动词从句的动作和主句的动作可以同时发生，也可以先后发生while
4、延续性动词从句的动作与主句的动作同时发生as延续性动词强调主从句动作相伴发生，可译为“一边一边；随着”2.before与since的常用句式连词词义常用句式before在之前，还未就；才；趁，还没来得及(1)It will(not)be一段时间before.“(没有)过(时间)才(就)”(2)It was not long before.“不久就”(3)It was时间段before.“过了(时间)才”since自从以来It is/has been一段时间since.(从句用一般过去时)3.until与till引导时间状语从句的区别连词位置用法until可以放在句首not.until可用于强调
5、句型till不可放在句首一般不用于强调句型4.because，as，since，now that引导原因状语从句的区别连词位置内涵语气能否回答why能否被强调because一般放在主句之后直接因果关系强能能as主句前或后双方都知道的原因弱不能不能since/now that通常位于主句前即学即练1单句语法填空While/When I was reading，he came in.Youll be late unless you get up earlier.The old man asked Lucy to move to another chair because he wanted to
6、sit next to his wife.We must camp where we can get water.二、目的状语从句；结果状语从句；方式状语从句；让步状语从句；比较状语从句观察例句1Although he may be troubled，he always presents a calm smiling face.2Mike is such an honest man that we all believe in him.3I have changed it as you suggested.4Ill speak slowly so that you can make sense
7、 of what I will say.5He runs faster than I(do)归纳用法1引导目的状语从句的有：so that，in order that，in case，for fear that等。2引导结果状语从句的有：so that，so.that.，such.that.。在非正式语体中，由so.that.，such.that.引导的句子中的that可以省略。3引导方式状语从句的有：as，as if/though。4引导让步状语从句的有：although，though，as，while，even if/though，whether.or(not)，“no matter疑问词
8、”与“疑问词ever”。5引导比较状语从句的有：as.as，not as/so.as，the same.as，比较级than。名师点津1although引导让步状语从句时，只能用正常语序； though引导让步状语从句时，可用正常语序，也可用倒装语序；as引导让步状语从句时只能用倒装语序，即从句中的表语、状语或动词原形置于句首，若表语是单数名词，前置时要省略冠词。2although与though都可以与yet，still，nevertheless连用，但不能和but连用。3while引导让步状语从句时，一般置于句首。4“疑问词ever”还可以引导名词性从句；“no matter疑问词”只能引导
9、让步状语从句。5so that与in order that引导目的状语从句时，常与can，could，may，might连用；in order that 引导的目的状语从句可以置于主句前或后，但so that引导的从句只能置于主句后。即学即练2单句语法填空While all of them are strong candidates，only one will be chosen for the post.And he speaks so slowly and strangely that it takes patience to understand what he is saying.Th
10、ey are working on it day and night so that they can finish it ahead of time.She is two years older than I.He behaved as if nothing had happened.单句语法填空1You may use the room as/so long as you clean it up afterwards.2He is so smart a boy that I like him very much.3After the war，a new school building wa
11、s put up where there had once been a theatre.4Tom is so independent that he never asks his parents opinions unless he wants their support.5If we dont stop global warming，many animals and plants in the world will be gone.6Lets not pick these peaches until this weekend so that they get sweet enough to
12、 be eaten.7Although/Though/While birds use their feathers for flight，some of their feathers are for other purposes.8.If you dont understand something，you may research，study，and talk to other people until you figure it out.9.Located where the Belt meets the Road，Jiangsu will contribute more to the Be
13、lt and Road construction.10.Over time，when/as the population grew，people began cutting food into small pieces so it would cook more quickly.短文语法填空Parents and grandparents are understandably proud of the quick minds and 1.impressive (impress)talents of their little ones.But let me tell you about anot
14、her quality，perhaps even more important，2.found (find)in a little girl named Skylar.Ever 3.since Skylar learned of Disneyland from TV，she saved her nickels and dimes in a piggy bank in the hope of visiting there someday.4When Skylar returned it was Christmas time.She decided to buy presents with her
15、 savings，but she also learned from 5.announcements(announcement) on TV about a local homeless shelter called “The Road House”6On Christmas Eve，she and her family drove to the shelter 7.where Skylar presented her Christmas box to a grateful little girl.She was 8. so filled with joy at truly helping someone else that her family decided 9.to make(make)the journey to the homeless shelter an annual tradition.It is that quality，above all these，10.that makes beautiful people.