一、定義：在句中作狀語的從句是狀語從句修飾主

1、一、 定義：在句中作狀語的從句是狀語從句，修飾主句中的動詞、形容詞或副詞等。狀語從句由從屬連詞引導，從屬連詞在句中不充當句子成分，只起連接作用，狀語從句放在句首時，要用逗號，放在句尾時不用。二、 分類根據意義上的不同，狀語從句可分為：時間狀語從句地點狀語從句原因狀語從句目的狀語從句條件狀語從句結果狀語從句讓步狀語從句方式狀語從句比較狀語從句三、 時間狀語從句（一）引導 時間狀語從句的連詞有：as, when(whenever), before, after, as soon as, until(till), since, every time, once.（二）、 “as” as, when,

2、 while都有“當的時候”，可以互用When she was a child.While she was a child. She Lived in Paris.As she was a child.as有“一邊一邊”的意思He sang as he walked.“when” When the clock struck twelve, all the lights went out.I was sleeping when she came in. 動補When we arrived at the station, the train had left.“while” 主、從句動作或狀態(tài)同時

3、發(fā)生。用while引導的從句用延續(xù)性動詞，常表示較長的時間或一個過程。While we were having supper, all the lights went out.Please keep quiet while others are studying.While I was writing letters last night, he was watching TV.when, while并列連問。when和while都可用作并列連問，連接并列分句。When表示“就在的時候”, while意反而，可是，表示轉折。One evening Beethoven was walking i

4、n a street, when he suddenly stopped outside a little house.并列連詞引導并列句，意思是就在那時。（三）、主句是一般將來時，時間狀語從句用一般現在時表將來，主句是過去將來時，從句用一般過去時表示過去將來時，主句是一般過去時，從句用一般過去時。1. I' ll call you when I get there.2. They said they would leave when they got the new.3. They left as soon as they got the new.Whenever 無論什么時候，隨時

5、1. Whenever someone throws in some rubbish, the truck produces a piece of music.每當有人扔進一些垃圾時，它（汽車）就放一段音樂。2. Whenever we' re in trouble, they will help us.3. I go to the theatre, whenever I am free.4. Come and see me whenever you want to.你隨時來看我。till和until(表示“直到”)句首多用until1、在肯定句中表示“直到為止”，主句謂語動詞要用延續(xù)

6、性動詞。I was waiting until/till he arrived.2、在否定句中表示“直到才”主句謂語動詞常用終止性動詞，這時until和till常被before替換。I didn' t leave till/until she came back.since: 主句用完成時，從句用一般過去時，since引導的從句間或可用現在完成時。It is two years since I have studied English.1. We have known each other since we were children.2. We have been friends (

7、ever since) since we met at school.3. It is (一段時間)+since+一般過去時態(tài)句子。It is two years since my sister married.(一段時間) have/has passed since +一般過去時態(tài)句子Two sisters have/has passed since my sister married.Since+時間點1. I have been at home since three o' clock this afternoon.2. Maria has been in China since

8、 two years ago.*every time, each time, next timeEvery time you get back at night, you drop your boots on the floor.Every time I catch cold, I have pain in my back.(every time 分寫不可以合寫) 比較everyday (adj) 日常的，普通的every day 是名詞短語，每天，天天Next time I go there, I will visit them.* once 一旦就Once you begin, you m

9、ust go on. 你一開了頭，就應該繼續(xù)下去。四、 地點狀語從句地點狀語從句用where, wherever引導We should go where the people need us.我們應該去人民需要我們的地方。Where there is a will, there is a way.有志者，事竟成。Wherever they went, they received a worm welcome.無論他們走到哪兒都受到熱烈歡迎。She follow him whose he goes. 他無論到哪里她總跟著。五、 原因狀語從句原因狀語從句用because(因為)，since(既然)

10、, as(由于)引導1、 字母由多到少，語氣由強到弱。2、 由why提問必須用because回答。Since, as不回答why的提問，而且從句一般放在句首，because一般放在主句之后。3、 before of +名詞Because of the rain, we didn' t go to the park.4、 because 和so不可連用，只能選其一。（另有although, but）Why didn' t he come to school? Because he was ill.Since I must die, I must. 既然我一定要死，我一定這樣做。S

11、ince a lot of people make mistakes in life, Mr Smith wanted to give John a Chance.5、 for并列連詞，不能放在句首，主要放在兩個并列句之間。For所提供的理由為一個補充說明，而且前面常有逗號隔開。The days we short, for it is December now.*改錯 Because he is ill is the reason why he can' t come.(Because改為that)六、 目的狀語從句目的狀語從句用so(常用于口語), that, so that, in

12、 order that引導目的狀語從句的謂語常含有may, might, can, could, should, would等情態(tài)動詞。1. We' ll sit never to the front so we can hear better.2. He studied hard so that he might succeed.他努力學習，以便成功。3. I' ll speak slowly so that you can take notes.我慢慢講，以便你們能做筆記。4. They hurried to the station in order that they c

13、ould catch the train.他們急忙趕往火車站，以便能趕上火車。5.I took a taxi so that I could get there earlier.6.I' m going to the lecture early so that I may get a good seat.我打算早些去聽講座，以便找個好座位。七、 條件狀語從句條件狀語從句由if, unless, (so) as long as(只需)引導在條件狀語從句中要用一般時表示將來時（與時間狀語從句相同）We will miss the train if you don' t hurry.

14、He said we would miss the train if we didn' t hurry.You will fail the exam unless you study hard. (if you don' t study hard)He won' t come unless he is invited. (if he isn' t invited)Eat less food unless you want to become fatter. (if you don' t want to become better)As long as y

15、ou are not afraid of difficulties, you are sure to succeed.As long as you don' t lose heart, you will succeed.八、 結果狀語從句結果狀語從句由suchthat, so.that, so that, that 引導1. suchto, enoughto 可以引導結果狀語從句與sothat 替換，sothat結構可以用tooto替換必須具備兩個條件，一是主句和結果狀語從句的主語必須一致，二是從句中的謂語部分必須含有can(could) not.She is young that s

16、he can' t go to school.She is too young to go to school.She isn' t old enough to go to school.九、 讓步狀語從句although, thougheven though = even if, whetherorhowever = no matter howwhatever = no matter whatwhoever = no matter whowhenever = no matter whenwherever = no matter where*although和though都表示

17、“雖然”只是although 更正式，多用于句首，而though用于句中，二者都可與yet, still連用，但不與but連用Although/Though they are poor, they often help others.They are poor, but they often help others.Although he has failed many times, he doesn' t give up trying.Whatever/No matter what you say, I won' t believe you.No matter what yo

18、u say, I don' t care.No matter who you are, you must obey the rules of our school.However hard he tried, he failed again.No matter what the weather is like, you can always find surfers out riding the waves.十、 方式狀語從句方式狀語從句由as(如同，按照)，as if (though)引導*as和like都有“像”的意思，as是連詞，后面連接句子，like是介詞后面可加名詞、代詞或名詞性短語。I did the work as others did. 相當于 I did