?.现在进行时的基本结构:be+(现在分词)V-ing现在进行时表示现在或现阶段正在进行或发生的动作,常和now,listen,look等词连用。现在进行时定义(ThePresentContinuousTense)be随人称变为is,am,are复习一下什么是现在进行时.★时间段:from…to…+过去时间过去进行时的定义:(a)Theywereeatingbreakfastat7:00amyesterday.(b)IwaswritingaletteratthistimelastSunday.★at+时间点,atthistime,atthattime+(a)From1983to1998,hewasteachingatYale.(b)Theywerebuildingacinemalastwinter..ThePastContinuousTense(过去进行时)基本结构:was/wasn’twere/weren’tdoing+Sb+.doing个是指现在分词,::00to10:00lastnight过去进行时的“时光机”.常用的时间状语thewholemorning/month,alldayyesterday,from….to….+过去时间when,while,atthattime....at+时间点,atthistime,atthattime+.
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