时间状语从句命题透视.docVIP

时间状语从句命题透视 　　一、when引导的时间状语从句 　　when意为 “当……时候”，表示过去某一段时间内所发生的动作。此外when引导的时间状语从句还时常用在以下固定句型中： 　　sb. had done sth. when sb. did sth.“当某人刚做完……，突然……” 　　sb. was doing sth. when sb. did sth.“当某人正在……，突然……” 　　sb. was about to do sth. when sb. did sth.“当某人正要……，突然……” 　　1. One Friday，we were packing to leave for a weekend away _______my daughter heard cries for help. 　　A. after B. while C. since D. when 　　2. Tom was about to close the windows _______ his attention was caught by a bird. 　　A. when B. if C. and D. till 　　3. I used to love that film _______ I was a child，but I don’t feel it that way any more. 　　A. once B. when C. since D. although 　　解析：三道题的答案分别为DAB。考查when引导的时间状语从句，前两道题属于前面讲到的固定句式，第3题指过去某一段时间内发生的动作。 　　二、before引导的时间状语从句 　　before指“在……之前”，引导时间状语从句时含义较多，常用在以下句型： 　　（1）sb. had done/did sth. before sb. did sth.“还没来得及……，就……” 　　（2）it will/would not be some time before sb. do/did sth.“过不了多长时间就会……” 　　（3）it was some time before sb. did sth.“过了多长时间才……” 　　（4）it was not long before sb. did sth.“没过多长时间就……” 　　（5）it won’t be long before sb. do sth.“过不了多久就……” 　　4. John thinks it won’t be long _______he is ready for his new job. 　　A. when B. after C. before D. since 　　5. The girl had hardly rung the bell _______ the door was opened suddenly，and her friend rushed out to greet her. 　　A. before B. until C. as D. since 　　6. You can’t borrow books from the school library _______ you get your student card. 　　A. before B. if C. while D. as 　　解析：三道题的答案分别为CAA。考查before引导的时间状语从句，且都属于前面提到的固定句式。第4题句意为“约翰认为他过不了多久就可以适应新的工作”。第5题句意为“女孩还没来得及按门铃，门就突然打开了，她的朋友冲出门去欢迎她”。第6题句意为“在你得到学生证之前，你不能从校图书馆借书”。 　　三、not until引导的时间状语从句 　　until用于肯定句，意为“到……时候”“在……之前”，指某一动作或状态一直延续到until所表示的时间为止，主句谓语动词多为延续性动词或表示状态的动词。until用于否定句，意为“直到……才……”， 表示直到此时才开始某个动作，谓语动词多为非延续性动词。在not...until的句型结构中，要对until部分进行强调时，要将not提前，与until一起置于被强调的部分之前，即：it is not until sb. do sth. that sb. will do sth./it was not until sb. did sth. that sb. did sth.；也可用在倒装句式中，即：not until sb. do sth.，will sb. do sth.或not until sb. did s