1、省鎮(zhèn)中高三英語二輪復習語法專題 語法專題三：狀語從句1. 狀語從句的類型1) 時間狀語從句：常見引導詞有： when：表示主句和從句的動作同時或先后發(fā)生，強調點，表“就在那時；突然”。while：常表示延續(xù)性動詞或狀態(tài)；while也可表示對比的轉折。as soon as： 表示從句的動作一發(fā)生，主句的動作馬上就發(fā)生。hardly / scarcely when；no sooner than：表示“還沒來得及就；剛就”。directly, immediately, instantly：副詞當連詞用，表示“一就”。the moment, the minute, the second：充當連詞，等于

2、when / as soon as。each time, every time, next time, by the time等：也可以引導時間狀語從句。since：引導的時間狀語從句，主句常用現在完成時，從句常用一般過去時。常用句型：It is + 段時間 + since從句，“自從有多長時間了”。until：常與not連用，表示“直到才”；Not until置于句首時，主句要部分倒裝；在It is / wasthat / who強調結構中，須連在一起。2) 讓步狀語從句：常見引導詞有：although, though, even if, even though, as等。 3) 原因狀語從

3、句：常見引導詞有：because：常用于回答why, 語氣最強；強調原因，常與just, only等起強調作用的副詞連用；可引導表語從句。for：是個并列連詞，一般不放在句首，常表示一種推測或解釋，或用作附加說明，語氣弱。as, since：常譯為“既然、由于”，表示十分明顯的原因，語氣較弱。now that：表示“既然”的意思。4) 地點狀語從句：常見引導詞有：where, wherever等。5) 目的狀語從句：常見引導詞有：that, so that, in order that等。目的狀語從句的謂語動詞常與情態(tài)動詞連用，否則可能是結果狀語從句。不可置于句首。目的狀語從句還可以用動詞不定

4、式來替換。6) 結果狀語從句：常見引導詞有：that, so that, so that, such that 等。7) 方式狀語從句：由as, as if(though)等引導。8) 比較狀語從句：由than, as等引導。9) 條件狀語從句：由if, unless, so (as) long as, in case, once, a far as, on condition that等引導。2. 注意：1) 主將從現規(guī)則：在時間狀語從句、條件狀語從句、讓步狀語從句、方式狀語從句中，若主句用一般將來時，或是祈使句，或是含有情態(tài)動詞的謂語形式，從句則用一般現在時表示將來時，如：You can

5、join our club when you get a bit older.2) 疑問詞 + ever和no matter + 疑問詞的區(qū)別：疑問詞 + ever可引導名詞性從句和讓步狀語從句；no matter + 疑問詞，只能引導讓步狀語從句。鞏固練習：1._ youve tried it, you cant imagine how pleasant it is.A. Unless         B. Because       

6、0;    C. Although           D. When 2. He left in _ a hurry _ he forgot his key. A. such, that B. so, that C. the same, as D. such, as3. He has loved me _ I were his son. A. because B. as C. if D. as though4. I dont think Ill need any

7、money but Ill bring some _. A. as last        B. in case         C. once again        D. in time5. Someone called me up in the middle of the night, but they hung up _ I could answer.A. as

8、60;          B. since         C. before        D. until6. We must do it well, _there are a lot of difficulties.A. as if   B. as though   C. even thoug

9、h   D. even as 7. _ has taken part in the Athens Olympic Games is worth praising no matter _ he has won medals or not.A. Who; if   B. Anyone; whether    C. Whoever; whether      D. Whoever; how 8. -Its a long time _ I saw you

10、 last.-Yes, and what a pity it is now that it will be a long time _ we see each other again.A. before; since    B. since; when   C. since; before    D. when; before 9. The head of the company promised to deal with matters of this sort_ he return

11、ed to his office.A. until    B. while  C. by the time  D. the moment 10. He had already walked three or four miles_ he saw a cart by the side of the road.A. while       B. when          

12、;       C. the moment          D. unless 11. Much _ the young couple needed money to make the down payment for the apartment, they wouldnt ask their parents for help.A. although B. as C. even if D. while 12. I have kept

13、the photo _ I can always see it, as it reminds me of the days when I studied in Britain.A. at which    B. when              C. where      D. at the place 13. I would appreciate it _ you can help

14、me with my English this afternoon.A. because        B. until              C. when                 D. if 14. _ you may be

15、 right, I cant altogether agree.A. As          B. While               C. If               D. Since 15._ was 1998 _

16、I graduated from the university.A. It; when         B. It; that             C. That; when      D. That; that 16. The famous scientist grew up _ he was born and in 1930 he came

17、 to Shanghai.A. when    B. whenever             C. where             D. wherever 17. “It gives me great joy and I feel more pressure than I did _ I won in China,” Di

18、ng Junhui said.A. that   B. when             C. which                D. how 18. Parents should take seriously their childrens requests for sunglasses _ eye protection is necessary in sunny weather. A. b