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• As soon as he entered the classroom, the bell rang. hardly entered the room • He had _____________________ when the bell rang. • He had ________________________ no sooner entered the room than the bell rang. • Hardly/Scarely had he entered the room ___________________ when the bell rang.
II while
1. when, while, as
1) He learned to speak English while he was here. While I slept, a thief broke in. Father looked after the children while mother was away.
5. each/every time, next time, the first/last time, any time, all the time, by the time
• Each time I was in trouble, he would come to help me out. • Be sure to call me next time you come here. • He was ill the last time I visited him. • By the time I graduate from this school, I will have been here for three years.
Exercise
• While/When/As I was walking down the street, I _____________ noticed a police car in front of the store. When • _______ John arrived, I was cooking lunch. As • _______ he grew older, he lost interest in everything except gardening. when • How can he get good grades _______ he won’t study? • I was wandering through the street_________ I when caught sight of a tailor’s shop.
状语从句分类
5. 让步状语从句
6. 目的状语从句
7. 结果状语从句
8. 方式状语从句
9. 比较状语从句
时间状语从句
1. The moment he comes, I will tell him. 2. I won’t know where he is until I get a letter from him. 3. No sooner had she gone than it happened.
常用连词： _____________: when, while, as, 当…的时候 _____________: since 自从… 以来 在…之前 _____________: before 还没…就… 直到… _____________: till, until, not…until 一…就… _____________: as soon as, immediately, the moment, the minute, once directly, the instant, instantly, 刚…就… _____________: no sooner …than…, hardly/scarcely…when… 每次…, 下次… each/every time, next time _____________: …
when+持续性动词/非持续性动词 强调特定时间
1. when, while, as
when 不可被as, while 替代的情况
1.when 也可作为并列连词，连接两个并列句， “那时”，“这时”=and then , and at that time. We were about to go out when the teacher came in. 2. when 还可译为 “在…的情况下” Why did you walk there when you have a car?
1. when, while, as I. when
When he was watching TV, he heard the door bell ring. When I was young, I liked dancing. When I got home, he was having supper. When he has finished his work, he takes a short rest.
1. when, while, as III. as
As he became poorer, he had fewer friends. As the sun rose, the fog dispersed. As times goes, it’s getting colder. As he walked along the street, he sang happily.
我吸烟有三年了. It is three years since I began to smoke.
Exercise
1. The research will take Joan and Paul about five months; it will be a long time ______ we meet them again. A. after B. before C. since D. when 2. We have never seen her again_____ she went to work in another city. A. when B. as C. since D. while 3. He was told that it would be at least three more months ______ he could recover and return to work. A. when B. before C. since D. that
3. till, until, not…unitl
1. Until 比till更正式 2. Until可以放句首,till不可以 • I won’t leave until/till he comes back. • I will stay her until/till he comes back. • Until he comes back, I won’t go.
1. It was _____________________ that not until he came back I left. he comes back will I leave 2. Not until_______________________.
4. as soon as, immediately, the moment, the minute, directly, the instant, instantly, no sooner…than, hardly/scarcely…when
2. before, since
2） It is+一段时间+since从句 时间从since从句的动作完成或状态结束时 算起. It is three years since the war broke out. 自战争爆发以来有三年了. It is three years since I stopped smoking a cigar 我不吸烟有三年了.
强调主从句动作同时发生 有 “随着”或 “一边…一边”的意思
1. when, while, as
★当主句的是非持续动词, 从句的谓语动词 是持续性动词时, when, while, as 可互相 替换.
While/When/As we were still laughing, the teacher came in.
2. before, since
2） 从句中谓语不用否定式 Before they reached the station, the train had gone. 他们还没到火车站，火车已开走了。
3） It will be+一段时间+ before…多久之后才… It will be half a year before I come back. 还得呆半年我才能回来. It won’t be long before we meet again. 没多长时间我们就会见面了.
while+持续性动词
2)I like tea while she likes coffee .(表示对比)
3)While he was walking in the street, he met Tim. (分词短语） While walking in the street, he met Tim. Walking in the street, he met Tom.
II. since
2. before, since
1）从句的谓语动词一般是非延续性动词, 主句的谓语动词是延续性的或者是反 复发生过的动作. Since 从句的时态若 是一般过去时, 从句时态是现在完成时 或现在完成进行时. I have written home four times since I came here. 自从我来到这儿, 我给家写了四封信. She has been working in this factory since she left school. 她离开学校以来就在这个工厂工作。
