be动词小结练习be动词的用法口诀: be动词有三兄弟：is，am, are .I(我)用am,you(你)用are,is跟着he(他) she(她) it(它)，单数名词用is，复数名词全用are. 解析: I am; You are; He is;She is; It is; We are; You are; They are.1.否定句只需要在be动词后加 not,即:am not, is not= isnt，are not = arent2.一般疑问句只需要将be动词提前至句首.即: Is .? Are .?3.there be 句型中be动词的用法1）在there be 句型中，主语是单数，be 动词用is；主语是复数，be 动词用are； 如有几件物品，be 动词根据最近be 动词的那个名词决定.2）there be 句型的否定句在be 动词后加not，一般疑问句把be 动词调到句首.一、在横线上填上合适的be动词.（am,is,are）1、Helen_ a student2、T
