高三英语语法专题复习6（状语从句）

1、高中英语语法专题复习 状语从句由从句担任的状语，在句子中可修饰谓语（或其它动词）、形容词、副词或是整个句子，它可以用来表示时间、地点、原因、目的、结果、条件、方式、比较、让步等。状语从句是一较大的语法项目，也是近几年高考题中常见的一个重要考点。高考中已考查了时间、让步、地点、条件、目的等状语从句，这些从句仍是今后高考热点，应作充分准备。同时对方式状语从句也应引起重视。（一）时间状语从句表示时间的状语从句可由when, as, while, whenever, after, before, till (until), since, once, as soon as (或the moment ),

2、 by the time, no sooner than, hardly (scarcely) when, every time等引导。e.g. When I came into the office, the teachers were having a meeting.No sooner_.我一到家就开始下雨了。（二）原因状语从句原因状语从句是表示原因或理由的，引导这类从句的最常用的连词是because, since, as , now that（既然）等，for 表示因果关系时（它引导的不是从句）为并列连词，语气不如because强。e.g. As it is raining， I wi

3、ll not go out. He must be ill, _he is absent today. （三）地点状语从句引导地点状语从句的连词是where 和wherever等。e.g. Sit wherever you like. Make a mark _. 在你有问题的地方作个标记。（四）目的状语从句引导目的状语从句最常用的词（组）是so, so that（从句谓语常有情态动词）, in order that, in case（以防，以免）等。e.g. Speak clearly, so that _. 讲清楚一点，以便他们能够理解你。（五）结果状语从句结果状语从句是表示事态结果的从句

4、，通常主句是原因，从句是结果。由so that （从句谓语一般没有情态动词）, so that, such that等引导。 e.g.He was so excited that he could not say a word. She is such a good teacher that everyone admires her.（六）条件状语从句条件状语从句分真实性（有可能实现的事情）与非真实性（条件与事实相反或者在说话者看来不大可能实现的事情）条件句。引导条件状语从句的词（组）主要有if, unless, so (as) long as, on condition that, so (

5、as) far as, if only ( = if )。注意：条件从句中的if 不能用whether替换。 e.g.You can go swimming on condition that ( = if ) you dont go too far away from the river bank.If he had come a few minutes earlier, he could have seen her.Let's go out for a walk unless you are too tired.= Lets go out for a walk if _.unles

6、s = _（七）让步状语从句让步状语从句可由although, though, as, even if (though), however, whatever, whether or, no matter who (when, what, ) 等引导。注意：as引导的让步状语从句一般是倒装的。though, although引导的让步状语从句，后面的从句不能有but，但是 though 和yet可连用. as 引导的让步从句必须表语或状语提前（形容词、副词、分词、实义动词提前）。e.g. Though he is a child, he knows a lot. _, he knows a l

7、ot. _you say, Ill never change my mind. 无论你说什么，我都不会改变主意。（八）方式状语从句方式状语从句常由as, as if (though), the way, rather than等引导。e.g. You must do the exercise as I show you. He acted as if_. 他表现地好像什么事都没发生。 He cleared his throat as if_. 他清了清嗓子，像要说什么似的。（九）比较状语从句比较状语从句常用than, so (as) as, the more the more等引导。e.g.H

8、e smokes cigarettes as expensive as he can afford.The busier he is, _. 他越忙碌，就感觉越开心。考点诠释1、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 (you are) asked , you may come in. If (it is) necessary Ill e

9、xplain to you again.2 when 引导突然发生的动作，意为：正在那时We were eating when a friend came to see me. (我们正在吃饭，正在那时一个朋友来了)我正要出去，电话响了。_3 while 1) 当的时候 while + 句子/while doing sthThey knocked at the door while/ when I was taking a bath 2) (放在句中)而, 但是(强调前后两者的对比)Jane is fashionable while her sisters clothes are often

10、out-of-date.3) (放在句首)虽然While I admit the problem is difficult, I dont agree they cant be solved.4 beforeIt wont be long before everyone knows it./ It wasnt long before everyone knew it._ It was a week before he returned. _5 until until 用于肯定句, 前面的动词要用持续动词; until 用于否定句, 前面的动词要用瞬间动词He didnt leave until

11、 I returned.否定句用瞬间动词Keep waiting until he comes back.肯定句用持续动词I didnt go to bed until I finished homework. not until 的原始句型 _ not until的倒装句型_not until 的强调句型6 every time/ each time/next time/the minute/ the second/ the first time/ the moment 直接引导时间状语从句， 不加that或whenShe is nervous _.每次她见到我，都很紧张。_I saw he

12、r, I didnt take it seriously.( the first time / for the first time)Last week, I went to the States _.( the first time / for the first time)7 as long as/ so long as/ on condition that 只要8 区别It _ten years _I graduated. 我毕业已经十年了It _two years _I graduate. 我要过两年才毕业9 _（无论雨下得多大）, we will have the sports me

13、eting. 注意语序！how/ however 后面跟形容词或副词巩固练习1. Have you got any idea for the summer vacation? （全国I卷） I dont mind where we go _ theres sun, sea and beach.A. as if                        &

14、#160;  B. as long as                 C. now that           D. in order that2. -Do you have a minute? Ive got something to tell you.   -Ok, _ you make it sh

15、ort. （安徽卷）   A. now that          B. if only          C. so long as         D. every time 3. All the neighbor admire this family _the parents are treating their

16、 child like a friend. （安徽卷）   A. why             B. where          C. which           D. that 4. Nancy enjoyed herself so much _ she vi

17、sited her friends in Sydney last year.    A. that             B. which           C. when            D. where 5. _ the Interne

18、t is of great help. I dont think its a good idea to spend too much time on it. （湖南卷）A.      If          B. While         C. Because          

19、;           D. As6. He found it increasingly difficult to read, _ his eyesight was beginning to fail. A. though                B. for       

20、                C. but                            D. so7. Youd better not leave the medicine _

21、kids can get at it. （山东卷）A. even if                B. which           C. where                 D. so

22、 that8. _ hungry I am, I never seem to be able to finish off this loaf of bread. A. Whatever            B. Whenever                 C. Wherever   

23、0;             D. However9. I used to love that film _ I was a child, but I dont feel it that way any more. A. once                     

24、;     B. when           C. since                           D. although10. A small car is big enough for a

25、 family of three _ you need more space for baggage. (全国II)A. once     B. because            C. if            D. unless11. There were some chairs left over _ everyone had

26、sat down. (四川卷)  A. when        B. until         C. that       D. where12. Dont promise anything _ you are one hundred percent sure. （浙江卷）A. whether      B. after

27、60;    C. how     D. unless13. Did you return Freds call? （北京卷）   I didnt need to _ Ill see him tomorrow.   A. though           B. unless      C. when    &

28、#160;        D. because14. Im sorry youve been waiting so long, but itll still be some time _ Brian gets back. A. before       B. since       C. till          &

29、#160; D. after15. Well have a picnic in the park this Sunday _ it rains or its very cold.  A. since      B. if         C. unless         D. until16. -Are you ready for Spain？(上海卷) 

30、   -Yes, I want the girls to experience that _ they are young.  A. while                    B. until               

31、   C. if               D. before17.  _ well prepared you are , you still need a lot of luck in mountain climbing. A. however           B. whatever           C. no matter   D. although 18. We all know that, _, the situation will get w