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along the street looking for a place to park when the accident ____. (2006安徽) A. went。 occurred C. was going。 had occurred ?。鄞鸢福?C ?。劢馕觯?根據(jù)題干句子含義, 事故發(fā)生于當(dāng)我沿街行駛、 尋找停車之處的時候; 從句的動作發(fā)生在主句動作的過程中。 2. before和after 引導(dǎo)的時間狀語從句分析: before引導(dǎo)時間狀語從句時表示主句的動作發(fā)生在從句動作之前, after引導(dǎo)時間狀語從句時表示主句的動作發(fā)生在從句動作之后。// Before they drive any of the buses, they will have to pass a special test. 在駕駛公共汽車之前, 他們必須通過專門測驗(yàn)。// I found his pen after he has left. 在他走后, 我找到了他的筆。 ?。劭碱}9] It was some time ____ we realized the truth. (2005山東) A. when B. until C. since D. before [答案] D ?。劢馕觯?題干意為: 過了一段時間我們才意識到真相?! 。劭碱}10] — How long do you think it will be ____ China sends a manned spaceship to the moon? — Perhaps two or three years. (2006福建) A. when B. until C. that D. before ?。鄞鸢福?D ?。劢馕觯?下劃線處所在的賓語從句采用一般將來時, 題干中第一句話問將來某一活動之前的時間, before最為適合?! ?. till和 until 引導(dǎo)的時間狀語從句分析: 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until的形式, till在口語中更為常見)。// We didn’t discuss the problem until he came back. 我們一直等到他回來后才討論問題?!薄 。劭碱}13] A good storyteller must be able to hold his listeners’ curiosity ____ he reaches the end of the story. (2003上海) A. when B. unless C. after D. until ?。鄞鸢福?D [解析] 講故事的人應(yīng)該始終抓住聽眾的好奇心, 本題應(yīng)選用表示“到……為止”(跟主句里肯定形式的表延續(xù)性動作的謂語動詞連用)的until 表示這一時間關(guān)系。 I ____ until the new secretary arrives. (1994) A. just help out B. have just helped out C. am just helping out D. will just help out ?。鄞鸢福?C [解析] “I don’t really work here”表明說話人只是臨時前來幫忙, “until the new secretary arrives”表明說話人, 工作到新秘書就任為止, 本題應(yīng)選用表示“到……為止”(跟主句里肯定形式的表延續(xù)性動作的謂語動詞連用)的until表示這一時間關(guān)系?! 。劭碱}16] —Was his father very strict with him when he was at school? —Yes. He had never praised him ____ he became one of the top students in his grade. (2003北京春) [答案] C ?。劢馕觯?until跟主句里否定形式的、 表非延續(xù)性動作的謂語動詞連用時, 表示“直到……才(開始)”, 本題應(yīng)選until與主句中的“never praised”對應(yīng), 表示“他的父親直到他成為年級里的尖子生之一時才開始稱贊他”。 4. since引導(dǎo)的時間狀語從句分析: since引導(dǎo)的時間狀語從句表示“自從……以來”, 其用法主要有兩種: (1) 現(xiàn)在完成時的主句+since引導(dǎo)的一般過去時態(tài)的時間狀語從句。// They have been friends ever since they were in grade school. 他們從小學(xué)起就一直是好朋友。例如: It is two years since I became a postgraduate student. 我成為研究生已經(jīng)有2年了?! ∽⒁猓?since做介詞時也表示“自從……以來”, 其具體用法有兩種情況: (1) since+表示過去某個時間點(diǎn)的詞匯(如具體的年、 月、 日期、 鐘點(diǎn))。She’s been skiing since childhood. 她從幼時起就開始滑雪?! ?2) since+表示一段時間的詞匯+ago。 ?。劭碱}18] — What was the party like? — Wonderful. It’s years ____ I enjoyed myself so much. (1993) A. after B. before C. when D. since [答案] D ?。劢馕觯?since表示“自從……以來”?! ey: 1. When 2. While / When 3. as 4. when/as 5. when 6. when 7. when 8. while 9. while 10. whenever 11. before 12. After 13. since 14. till/until 15. until 16. before 17. as soon as 18. before 19. when