2、,主语+can.否定回答:No,主语+be动词(am,is,are)+not.No,主语+can+not.is not= isn’t are not= aren’tcannot=can’t练习:将下列句子改成一般疑问句,并按要求回答1.Wearegoodfriends.—?—.(肯定回答)2.It is my pen.—?—.(否定回答)3.Theycanswim.—?—.(否定回答)4.Mrs.LiandKittyareinabigshop.—?—.(肯定回答)5.I’m tall.—?—.(肯定回答)6.Sheis