后面可接名词或动名词形式Eg:MrGuisgoodatlanguages.Hecanspeakeightlanguages.顾先生精通多种语言,他会说八种语言。Iamgoodatswimming.我擅长游泳。Heisgoodatplayingchess.他擅长下国际象棋。Amyisgoodatrunning.Amy擅长跑步。Theyaregoodatmusic.他们擅长音乐。1,begoodatsth./doingsth.擅长于……;精通……1,begoodatsth./doingsth.擅长于……;精通……He____good_____swimming.他擅长游泳。I_______________tellingstories.我擅长讲故事。LucyandLinda_______goodat_________.Lucy和Linda擅长跳舞。isatamgoodataredancing相当于dowellin…Iamgoodatswimming.Idowellinswimming.Amyisgoodatrunning.Amydoeswellinrunning.Heisgoodatplayingchess.Hedoeswellinplayingchess.1,begoodatsth./doingsth.擅长于……;精通……Theyaregoodatmusic.Theydowellinmusic.1,Iamgoodats__________.Iwanttojointheswimmingclub.2,They_____goodatart.Theyareintheartclub.3,Heisgoodatplayingtheguitar.(变一般疑问句)_____he___________playingtheguitar?Yes,heis.No,heisn’t.wimmingareIsgoodatIdowellinswimming.Theydowellinart.Hedoeswellinplayingtheguitar.Doeshedowellinplayingtheguitar?Yes,hedoes.No,hedoesn’t.2,liketodolikedoing喜欢做某事Iliketodance.Ilikedancing.Helikestoplaychess.Helikesplayingchess.join+组织或团体表示;加入某一组织或团体,并且成为其中的一员。join+人称代词(宾格)表示:和某人一起进行某种活动。3,join的用法Wearetellingstories.Comeandjoinus!我们正在讲故事。来加入到我们的行列中来吧。Doyouwanttojoin______(we).Hewantstojoin________(they).1.Heisgoodattellingstories.(同义句并变一般疑问句)He_____________tellingstories._____he_____well____tellingstories?2.I_____goodatswimming.(填空并变一般疑问句)______you____________swimming.3.Ilike________________(run).Iwanttojointhesportsclub.4.Hewantstojoin______(we).doeswellinDoesdoinamAregoodatrunning/torunus