1语法精讲精练：非谓语动词——动词-ing形式王奴娇教案动词的-ing形式包括传统语法的“动名词”（gerund）和“现在分词”（presentparticip...
概念引入Themusictheyareplayingsoundssoexciting.WewatchedthreeboyssharingtheirfoodwitheachOurjobisplayingallkindsofmusic.Thegirlsin...
