2014年秋高中英语Module4Carnival同步攻课讲解外研版必修5一、Thinkofcarnival,andyouthinkofcrowds,costumesandconfusion.该句属于“祈使句+and+陈述句”的用法，相当于“If从句+主句”；该句相当于：“Ifyouthinkofcarnival,youthinkofcrowds,costumesandconfusion.”例如：Workhardandyouwillmakeprogress.(=Ifyouworkhard,you’llmakeprogress.)类似经常考查的结构：祈使句+or+陈述句结构。该句相当于“if...not...，you...”。例如：Hurryup,oryouwillbelate.(=Ifyoudon’thurryup,youwillbelate).二、Ordinarypeoplecouldpretendtoberichandimportant,whilefamouspeoplecouldhaveromanticadventuresinsecret.A）注意该句中while不是引导时间状语从句而是引导并列句，通常说明前后对比情况。例如：Thereisplentyofraininthesoutheast,whilethere’slittleinthenortheast.B）另外while还有两个用法容易被同学们忽略：①含义为“虽然;尽管”,表示让步。例如：WhileIadmithisgoodpoints,Icanseehisshortcomings.②含义为“只要”,表示条件。例如：Wecansurelyovercomethesedifficultieswhilewearecloselyunited.三、Astimepassed,however,thecarnivalperiodwasextended,sothatitbeganjustafterChristmas.句子中Astimepassed是一个时间状语从句，表示“随着时间的推移”,其中as是连词，后面应该跟句子。例如：Astimewenton,hishairbecamegrey.
