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课件网) “一……就……”表达方式： at + n.(v. n. ) as soon as..., once, the moment, the minute, the second, the instant, immediately, instantly, directly ， hardly…when..., scarcely…when...., no sooner…than..., on + doing, 一个在复合句中用作状语的 叫状语从句。从句由_____或_____引导。 状语从句可表示1) _____ 2) _____ 3) _____ 4) _____ 5) _____ 6) _____ 7) _____ 8) _____ 9) _____等 句子 时间 地点 原因 目的 结果 条件 方式 比较 让步 名词词组 连词 状语从句考点 1、各种从属连词的含义及用法比较； 2、状语从句的时态问题； 3、状语从句的倒装问题； 4、状语从句与其它从句的区别。 I.时间状语从句，通常由以下词引导： 1.when, while , as, before, after, until, till, since, ever since, once, as soon as ； 2. every time, next/last/each time, the first time； 3. the moment, the minute, the second, the instant, immediately, instantly, directly ，hardly…when, no sooner…than, scarcely…when 当状语从句由when,till, until, before, after, as soon as,the moment等引导时，如果主句的时态是 _____ ，则从句的时态用_____。 一般将来时 一般现在时 注意 I. Fill in the blanks with "when, while, as": _____ we were talking, Mr Smiths came in. _____ they came home, I was cooking dinner. Things are getting better and better _____ time goes on. 4. _____ we were watching TV, he was studying. 5. I had just finished my exam paper _____the bell rang 6. _____ she sang, tears ran down her face. While/ As/ When When While when As as 7.I will go home _____ he comes back. 8.We were about to start _____ it began to rain. 9.He likes coffee, _____ she likes tea. 10._____ a boy, he lived in Japan. 11._____ reading, he fell asleep. 12._____ in trouble, ask her for help 13_____I admit his good points, I can see his shortcomings. when when while As/When When/While When/While While A. 从句为”当…的时候”,从句谓语为延续性动词,主句谓语为非延续性动词, 三者可通用. 即： B. 只用when的情况： 1.当从句谓语为短暂性动词时; 2. 时间有先后; 3. 表“正在那时”。 C. 从句和主句的谓语动词都为延续性动词时, 只能用while（主延从延）; while还可 Conclusion: （从延主非,三者都可） 作并列连词, “然而”表对比；引导让步状语从句，置于句首，表“虽然，尽管”。 D.当强调主句和从句的动作同时发生时,只能用as, 译为”一边…一边; 随着……”。 E.when / while +现在分词/介词短语/形容词等构成省略句。 F. as / when +名词，构成省略句。 注意: 几种常用when的句型: was/ were doing sth. when… was/ were about to do sth. when… was/ were on the point of doing sth. when… had just done sth. when… 1. It was at half past four in the afternoon____we climbed up to the top of the hill. A.since B when C that D until 2. Is it the years ____you worked in the factory ____have an effect on your writing A.that,where B.when,that C.that,that D.which,that 巩固专练 3. He had covered almost half of the book ___he suddenly realized what the author was trying to get over. A.after B.when C.until D.since 4. Mary made coffee___her guests were finishing their meal. A.so that B.although C.while D.as if 5. It was 8:30 in the ... ...
