语法项目构成用法象征词例句一般现在时主语+动词原形或者第三人称单数-s/es表示经常性的动作或状态Every often alwayson天in月、季、节、年。+动词过去式(did或者be—was/were表过去某个、段时间内动作及状态Ago/justnow/In1998/lastweek/+begoingto+动词原形will/shall+动词原形在将来某个时间或某段时要做的事tomorrow/afternext/tonight in2010Areyougoingtoread?+be(am/is/are)+doing表此时此刻正进行的动作或状态listen look nowallthetime Don’t…+have/has+动词过去分词主语+have/hasbeen+doing发生在过去影响在现在的动作或状态等含糊的频率副词 already just ..过去进行时主语+was/were+doing多用于复合句中表在过去某时间正在进行的动作atthistimeyesterdaylastSundayeveningHewasreadingatthattimelastFriday过去完成时主语+had+动过去分词多用于复合句中该动作发生在过去的过去bythetime+过去时when after beforeWehadlearnt2000wordsbytheendof +would+动词原形多用宾语从句中过去看来将要发生的动作或状态Hesaidthathe…+动词原形对过去情况进行假设时had+donewould+have+doneEg:,iwouldwearaskirtwhatwouldyoudoifyouhadamilliondollars?eafewminutesearlier,、S(主)+Vi(不及物动词)(谓语)——→主动结构例如:)S+V+副词(状语)例如:)S+Vi+介词短语(状语)例如:)S+Vi+不定式(状语)例如:)S+Vi+分词(状语)例如:I'(主)+Vt(及物动词)(谓语)+O(宾语)——→主动宾结构例如:)S+Vt+名词/代词例如:)S+Vt+不定式例如:Iwanttohelphim.[说明]常用于这句型的动词有:decide,hope,
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