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三、时态 1、一般现在时 表示普遍、经常性的或长期性的动作时使用一般现在时，它有： Be动词：She’saworker.Issheaworker？Sheisn’taworker. 情态动词：Icanplaythepiano.Canyouplaythepiano？Ican’tplaythepiano. 行为动词：Theywanttoeatsometomatoes.Dotheywanttoeatanytomatoes？Theydon’twanttoeatanytomatoes. Ginahasanicewatch.DoesGinahaveanicewatch？Ginadoesn’thaveawatch. 2、现在进行时 表示动词在此时正在发生或进行就使用进行时态，结构为sbbev-ingsth+其它。 I’mplayingbaseball.Areyouplayingbaseball？I’mnotplayingbaseball. Nancyiswritingaletter.IsNancywritingaletter？Nancyisn’twritingaletter. They’relisteningtothepopmusic.Aretheylisteningthepopmusic？Theyaren’tlisteningtothepopmusic. (责任编辑：admin) |