初中英语状语从句市公开课一等奖百校联赛获奖课件.pptVIP

英语状语从句Theadverbialclause

状語修饰動詞、形容詞、副詞或整個句子。當状語為句子時即為状語從句，壹般可以用来表达時间、地點、原因、成果等概念。(壹)、状語從句定义

Forexample：Jimjoinedthearmyin1989.Jimjoinedthearmywhenhewas20.HelearnedEnglishinAmerica.HelearnedEnglishwherehelived.Iwillhelpyouifyouaskme.HewearsaT-shirtthoughitiscold.｛｛

状語從句時间状語從句地點状語從句条件状語從句原因状語從句让步状語從句成果状語從句目的状語從句(二）状語從句分类

1.時间状語從句：1）由when引导。when指的是“當...時候”。WhenIcameintotheroom,hewaswritingaletter.Weshallgotherewhenwearefree.常用引导詞：when,as,while,assoonas,before,after,since,till,until

Wewereabouttosetoffwhenitsuddenlybegantorain.Wewerehavingameetingwhensomeonebrokein.Hehadjustfallenasleepwhenthephonerang.我們刚要出发，忽然下起雨来。我們正開著會忽然有人闯入。他刚刚睡著電话就响了

2）由while、as引导。while指“在某壹段時间裏”，“在…期间”，while引导的動作必须是持续性的。as引导持续性動作，强调主句和從句的動作同步发生，從句常译作“壹边…壹边…”。如：Whileitwasraining,theywentout.Strikewhiletheironishot.Hehurriedhome,lookingbehindashewent.

3）由before、after引导。before表达在…之前。after译為“在…之後”。如：Beapupilbeforeyoubecomeateacher.Hearrivedafterthegamestarted.

4）由till、until引导。如：Wewaitedtill(until)hecameback.Shedidn’tstopworkinguntileleveno’clock.until/till引导時间状語從句，意為“直到……”。當主句的谓語動詞時延续性動詞，主句常用肯定形式；當主句的谓語動詞是短暂性動詞時，主句常用否认形式。Not…until…意為“直到……才……”,”在....之前没有...”。I’llstayhereuntil/tillyoucomeback.我會呆在這裏，直到你回来。Hedidn’tgotobeduntil/tillhefinishedhishomework.他直到做完作业才睡覺。

5）由since,assoonas引导。GreatchangeshavetakenplaceinChinasincehecamebackin1978.I’lltellheraboutthematterassoonasshereturnshome.Jerryrushedhomeassoonasheheardthenews尚有：nosooner...than，hardly...when，thesecond，immediately等。since意為“自從……”，主句常用目前完毕時，從句常用壹般過去時Assoonas意為“壹…就”若主句用壹般未来時，從句常用壹般目前時表未来。

2.地點状語從句：由where引导。“在....地方”如：Wherethereisawill,thereisaway.ThereareplentyofsheepwhereIlive.Wherethere’splentyofsunandrain，thefieldsaregr