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1、高中第四册Module3BodyLanguageandNon-verbalCommunication条件状语从句常由if,unless,incase(万一，假使),onconditionthat,as/solongas,provided(that),providing(that)(以……为条件)，suppose(that),supposing(that)（假如）等连词引导。注意：1.主句是一般将来时，if，unless等引导的条件状语从句通常用一般现在时表将来e.g.Ifitsnowstomorrow,wewillb
2、uildasnowman.2.If引导的条件状语从句分为：真实条件句和虚拟语气e.g.Ifyoudon’tgoatonce,youwillbelate.(真实)Ifwehadmoretimeyesterday,wecouldhavedonethework.(虚拟)1.As/Solongaswedon’tloseheart,we’llfindawaytoovercomethedifficulty.so/aslongas只要incase如果，万一Incasehegivesmeaphonecall,tellhimthatI
3、willcallhimback.1.Don’tcomeunlessItelephone.2.Youwillfailunlessyouworkhard.1.Supposingshedoesn’tcome,whatshallwedo?unless除非，若不.（if…not）Supposingthat/supposethat假设1.Shewillgoprovidedherfriendscangoalso.2.Hewilldotheworkprovidingyoupayhim.provided(that)有些条件句可省略某些
4、成分或改成短语：1.Ifnecessary,ringmeathome.2.Hewillcomeifasked.3.Hewouldneverdothisunlessforced.引导让步状语从句常用的连词有：though,although,as,while（虽然），evenif,eventhough（即使），whatever（无论什么），wherever（无论哪里），nomatterwh…（无论…）。让步状语从句as引导的让步状语从句，从句用部分倒装adj./adv./n.(无冠词)+as+主谓v.+as+主语+may
5、/might/will/woulde.g.Childasheis,heknowsalot.虽然他是个孩子，他懂得很多。MuchasIadmirehim,Icannotexcusehisfaults.虽然我很崇拜他，可我不能原谅他的错误。（状语much提前）2.当有though,although时，后面的从句不能有but，但可与yet可连用。e.g.Althoughit'sraining,theyarestillworkinginthefield.Maryisanicegirl,butshehasoneshortcom
6、ing.3.however,whatever,whenever,whoever等引导让步状语从句，相当于nomatterhow,what,when,who….(无论怎样/什么/何时/谁…)e.g.Whateverworkwedo,weshoulddoourbest.Hekeepstakingphysicaltraininginwinternomatterhowcolditis.4.whether…or…(不管……还是…….)whether…ornot（不管是……还是不是）e.g.Allthenationsshould
7、beequal,whethertheyarestrongornot.Thankyou!
