北师大版高中英语状语从句学案

1、状语从句 学案（一）、课前预习检测：在复合句中修饰主句中的动词、形容词和副词的从句叫（ ）。状语从句根据它表达的意思不同可分为（ ）状语从句、（ ）状语从句、（ ）状语从句、（ ）状语从句、（ ）状语从句、（ ）状语从句、（ ）状语从句、（ ）状语从句和（ ）状语从句等。状语从句如果放在主句前通常用逗号分开。自学目标：1、了解状语从句的各种类型，并正确使用从属连词 2、能正确掌握状语从句中的时态表达法。自学指导：熟读考点清单，了解状语从句的分类，连接词的含义和固定句型的用法。（二）、自学要点 考点清单一、时间状语从句。1.由连接词when、while、before、after、since、un

2、til(till) 、as soon as、as等引导2.由副词：directly,immediately, instantly等引导 3.由时间名词;the moment, the minute, each/every time,next time, the first/second /last time,by the time等引导.The moment the bell rang, all the students stood at attention. The first time he saw her , he fell in love with her.4.常考句型1.be abo

3、ut to/be doing/ had donewhen 将要做/正在/刚做完某事 突然2.It was /will be before It was not long before I forgot it all.(It is /has been since是常用句型）It is just a week since we arrived here.注意事项 1. Not until 在句首，主句用倒装。例如：Not until I began to work did I realize how much time I had wasted. 2.Hardly/scarcely/rarelyw

4、hen, No soonerthan No sooner had I got home than it began to rain.二、地点状语从句 地点状语从句由where, wherever引导。例如：Make a mark where you have any questions. Wherever you go, I will be right here waiting for you.三、条件状语从句由连接词if, unless, once , provided(that) supposing (that) , as long as, on condition that ,等引导。如

5、果主句用一般将来时，从句应用一般现在时。例如：As long as you keep on trying , youll certainly succeed.We will let you use the room on condition that you keep it clean and tidy.四、原因状语从句由because , since , as , for , now /in that,seeing that (由于), 等引导例如：As the weather was fine ,we decided to climb the mountain. 五、目的状语从句由so t

6、hat , in order that , lest, in case , for fear that (以防，以免)等引导的从句的谓语动词常与can , may , could , might , should 等情态动词连用。例如：Take an umbrella in case it should rain.Ask him to hurry up with these letters in order that I can sign them.六、结果状语从句由that, so that或suchthat引导。例如：It is such a difficult problem that

7、nobody can work it out. 注意：So + 形容词、副词及such 置于句首时要倒装。So early did he come to school that no other students came.七、让步状语从句1.由连接词as , while , though, although, even if , even though,等引导。例如：Although its raining , they are still working in the field.注意：although 引导的让步状语从句不倒装；though 引导的可以倒装，as 引导的让步从句必须把表语

8、或状语提前（形容词、副词、分词、实义动词提前）。句首名词不能带任何冠词。如句首是实义动词，助动词放在主语后。如果实义动词有宾语和状语，随实义动词一起放在主语之前。例如：Young/Child as /Though he was, he knew what was the right thing to do.= Though he was a small child, he knew what was the right thing to do.Try hard as he will, he never seems able to do the work satisfactorily.2 / 4

9、= Though he tries hard, he never seems2.让步状语从句可由however, whatever, whether or, no matter who (when, what, ) 等引导。Whatever ( = No matter what ) you say, Ill never change my mind.八、方式状语从句引导方式状语从句的从属连词有as，（just）asso, as if (though). As引导的方式状语从句通常位于句首。As在句中带有比喻的含义，意思是“正如， 就像 ”。例如：Most plants need sunligh

10、t just as human beings do. Water is to fish what air is to man. ( A is to B what C is to D) He has been standing there for more than half an hour as if (he were)waiting for someone.九、比较状语从句由连接词asas、than、not soas等引导。例如：He speaks English much better than any other student in his class.（三）、疑难探究 使用状语从句时

11、要注意的几个问题1、在时间和条件（有时也在方式、让步等）从句中，主句是一般将来时，从句通常用一般现在时表示将来。e.g. Well go outing if it doesnt rain tomorrow.Ill write to you as soon as I get to Shanghai.2、有些时间、地点、条件、方式或让步从句，如果从句的主语与主句主语一致（或虽不一致，是it），从句的谓语又包含动词be ，就可省略从句中的“主语 + be”部分。e.g. When (he was) still a boy of ten, he had to work day and night.If

12、 (you are) asked you may come in. If (it is) necessary Ill explain to you again.（四）、当堂训练 真题演练1. I wonder how much you charge for your services.- The first two are free _ the third costs $30.A. while B. until C. when D. before2.My parents dont mind what job I do_I am happy . A even though B as soon a

13、s C as long as D as though 3.John wouldnt eat anything _ he cooked it himselfA. until B. since C. unless D. while4.-Did you remember to give Mary the money you owed her?- Yes. I gave it to her _ I saw her.A. while B. the moment C.suddenly D. once5._ you decide to take up, you should try to make it a

14、 success.A. If B. Whenever C. Unless D. Whatever6.Ill show you my new pictures_you show me yours. A. so that B. in order that C.on condition that D.in case7 .If we work with a strong will, we can overcome any difficulty, _ great it is.A. what B. how C. however D. whatever8.I hurried _ I wouldnt be l

15、ate for class.A. since B. so that C. as if D. unless9. John plays football _ , if not better than, David.A. as well B. as well as C. so well D. so well as10. I was watching TV _ suddenly the lights went out.A. when B. while C. as D. for11. There are always spare batteries in my desk_I need them.A. in case B. the moment C.even if D.so that12. No sooner _ entered the office _I heard the telephone ringing.A. had I, when B. I had, than C. had I, than D. I had, when13. I had hardly arrived _ he started crying to go home.A. as B. for C. when D. until14