? ?Tom is laughing.Jerry is laughing.They are laughing.What are they doing?Tom is laughing.Jerry is laughing.They are laughing.现在进行时：现在进行时：表示此刻正在发生的事情。表示此刻正在发生的事情。现在进行时结构：现在进行时结构：amisare+ doingbe动动词词nowright nowat the momentlooklisten标志词Jerry is playing the guitar.Jerry is eating butter.Tom is flying.Tom is runing. Jerry is runing. They are runing. running.running.running.现在分词的变化规则：现在分词的变化规则：现在分词ing,变法有4般ie结尾变为y，再把ing加重读辅元辅，双写尾字母一般直接加，见e去e加openskimakecutcomeflyswimwriteridelistenphonedanceskiingswimmingcomingdancingflyingcuttingmakingphoningridingopeningwritinglistening1.Look ! The boy _(read) books. 2.The girls _(have) breakfast now. 3.He _(clean) the blackboard right now. 4.Tom _(play) football on the ground at the moment . 5.Listen! They _(sing) in the muisc room. is readingare singingis playing are having is cleaningLets review.定义结构时间标志现在分词变化规则The end.