1、學無止境狀語從句什么是狀語：句子中修飾動詞、形容詞等的句子成分叫狀語，用來從地點、時間、原因、目的、結果、條件、讓步、比較、方式和伴隨狀況等方面修飾說明謂語。e.g. He speaks English very well（.副詞作狀語）e.g. He is playing under the tree（.介詞短語作狀語）e.g. I come specially to see you（.不定式作狀語）e.g. If I am not busy tomorrow,I will play football with you.（從句作狀語）e.g. Having had a quarrel wit

2、h his wife,he left home in a bad temper（.分詞作狀語）狀語從句：狀語從句就是在復合句里起狀語作用的從句，可以表示時間、地點、原因、目的、結果、讓步、比較、方式、條件等。引導狀語從句的連詞叫做從屬連詞。狀語從句的位置可以在句首，也可以在句末。放在句首時，從句后面常用逗號與主句隔開；放在句末時，從句前面往往不用逗號。Ifit s fine tomorrow, I will go with you.I will go with you if it s fine tomorrow.狀語從句分類：1、時間狀語從句2、地點狀語從句3、原因狀語從句4、目的狀語從句5、

3、結果狀語從句6、條件狀語從句7、讓步狀語從句8、比較狀語從句9、方式狀語從句最全文檔整理學無止境時間狀語從句從屬連詞：when, while, as, before, after, till/until,since, whenever, as soon as（一 就） 時態：主將從現，主情從現，主祈從現一、 When/while/as（當 時候）區別：主句動作與從句動作發生的時間（同時/之前 /之后）；從句動詞（延續性/瞬時性）1）When:when 引導時間狀語從句時表示“當 的時候 ”，when 既可以指時間段也可指時間點，從句中既可用延續性動詞又可用瞬間性動詞，且動作既可和主句的動作同時

4、發生又可在主句的動作之前或之后發生。且when 引導的時間狀語從句中一般用一般現在時表將來（主將從現）。e.g. I will call you when I get there.e.g. When I came home my wife was cooking dinner.e.g. I will go home when the rain stops.e.g. When I got to the airport，the guests had left.A）如果 when 引導的時間狀語從句的主語與主句主語相同，而從句的謂語又是 be 動詞時，那么從句中的主語和be 可以省略 ;e.g. W

5、hen (you are) in trouble, ask her for help.B）當 when 引導的時間狀語從句的主語與主句主語相同時，往往還可以省略從句的主語并用 “when+分詞 ”的形式替代該狀語從句。e.g. When I came into the room (=When coming into the room), I found him lyingthere asleep.2）Whilewhile 引導時間狀語從句時表示“當 的時候 ”，它強調主句的動作與從句的最全文檔整理學無止境動作同時持續地進行，用于這一用法時while 引導的時間狀語從句和主句中的謂語動詞必須是延

6、續性動詞， 或者強調主句的動作發生在從句動作的進行過程中，此時主句中的謂語動詞通常是非延續性動詞。記住，從句中始終是延續性動詞，且從句多用進行時態。 （while 還可以表示對比，譯成“然而” ，放在句首可以表示“雖然” ）e.g. I met her while I was at school.e.g. While I was sleeping, the UFO arrived.e.g. We were doing our homework while it was raining outside.e.g. Study while you study; play while you play

7、.3）Asas 引導時間狀語從句時表示 “當 時”（只引導瞬間性動詞，兩個動作是緊密聯系的，一前一后進行） ， “一邊 一邊 ”，側重表示兩個動作同時發生 (包括一個主語同時進行兩個動作)， “隨著”，一種動作隨著另一種動作的變化而變化從句中只能接延續動詞。e.g. He jumps as he goes along.e.g. As the wind rose the noise increased.【 When, while , as 辨析】三者均可以表示 “當 時候 ”，如果主句表示的是短暫性動作，而從句表示的是延續性動作（主短從延） ，三者可以通用。I met Mr Li as / wh

8、en / while I was walking along the street.（ 1） While 意為 “在 期間 ”，從句的謂語必須是延續性動詞。The plane had left when we got to the airport.（ 2）表示帶有規律性的 “每當 ”，或者主從句動作有先后時，都只能用when.When winter comes, it becomes cold.（ 3）表示 “隨著 ”時間的推移，主從句的內容是兩種變化的情況，只能用as.最全文檔整理學無止境As the day went on, the weather got worse.（ 4）強調主句動作

9、延續到從句所指的整個時間，只能用while.【鞏固練習】1）I had just stepped out of the bathroom and was busily drying myself with a towel_ I heard the steps.A. whileB. whenC. sinceD. after2）He was about halfway through his meal _ a familiar voice came to his ears.A. whyB. whereC. whenD. while3）We were swimming in the lake _ s

10、uddenly the storm started.A. whenB. whileC. untilD. before4） I m going to the post office. _ you re there, can you get me some stamps?A. AsB. WhileC. BecauseD. If5）I _ along the street looking for a place to park when the accident _.A. went; was occurringB. went; occurredC. was going; occurredD. was

11、 going; had occurred答案 BCABC二、 Before/afterbefore 引導時間狀語從句時表示主句的動作發生在從句動作之前,常翻譯為在“之前 ”，“才 ”或“就 ”。e.g. See me before you leave.e.g. Before they drive any of the buses, they will have to pass a special test. after 引導時間狀語從句時表示主句的動作發生在從句動作之后e.g. I saw them after I arrived.e.g. I found his pen after he h

12、as left.最全文檔整理學無止境【鞏固練習】He was told that it would be at least three more months _ he could recover andreturn to work.A. whenB. beforeC. sinceD. thatIt was some time _ we realized the truth.A. whenB. untilC. sinceD. before三、 Till/until/not until1、肯定句： till 和 until 這兩個詞作連詞和介詞時的意義和用法相同，一般可以換用 (放在句首時通常用

13、 until 的形式， till 在口語中更為常見 )。主句的謂語動詞必須是持續性的，表示 “到 為止 ”， “直到 才 (開始 ) ”。e.g. Walk till you come to a white house.e.g. We didn t discuss the problem until he came back.2、否定句：Not until ，主句的謂語動詞則為短暫性的， 表示 “直到 才 ”，若主句謂語動詞為延續性動詞，根據上下文可表示“沒有到”He didntwait until/ till I returned. 他沒有等到我回來。not until 的三種用法：1）用在

14、句中的基本用法e.g. He did not appear until the concert ended.2）與 that 搭配的強調結構e.g. It was not until the concert ended that he appeared.3）用于句首的倒裝結構主句倒裝e.g. Not until the concert ended did he appeared.【鞏固練習】1）It is difficult for us to learn a lesson in life _ we ve actually had最全文檔整理學無止境A. until B. after C. s

15、ince D. when2）A good storyteller must be able to hold his listenersreachescurioitythe_ heend of the story.A. when B. unless C. after D. until3）I don t really work here; I _ until the new secretary arrives.A. just help outB. have just helped outC. am just helping outD. will justhelp out四、 SinceSince

16、引導的時間狀語從句表示“自從 以來 ”，需注意以下兩1）引導時間狀語從句時，一般指的是“從過去的某一時間點以來”的概念，表示動作從過去一直持續到現在。從句用一般過去時，主句用完成時。e.g. I have never seen him again since he left here.e.g. They have been friends ever since they were in school.2）若表示到過去某一時間前的情況，則主句用過去時，從句用過去完成時。通搭配為 it was+時間段 +since 過去完成時或 it is+ 時間段 +since 過去時 e.g. It is t

17、wo years since I became a postgraduate student.e.g. It was three years since we had been there.3）延續性動詞相反翻譯，瞬間性動詞正常翻譯It is three years since I smoked a cigar.我不抽煙三年了。It is three years since I left there.我離開那里已經三年了。【鞏固練習】1）They _ friends since they met in Shanghai.A. have madeB. have becomeC. have bee

18、nD. have turned2） What was the party like?最全文檔整理學無止境 Wonderful. It s been 2 years _ I enjoyed myself so much.A. afterB. beforeC. whenD. since五、“一就” as soon as, immediately, directly, instantly, the moment,the minute, the instant, no sooner than ， hardly/ scarcely when和 once1）as soon as 表示對將來事情進行推測（用一般現在時表示將來