精选优质文档-倾情为你奉上专题四 动词一、动词的分类连系动词(重点为be动词am,is,are)动词情态动词:can,may,must,should助动词:do,does,did实义动词:read,see,sit,stand二、be动词 “是” am 用法口诀 I用am,you用are1. Be动词 is is连着他,她,它(he,she,it) are 单数is复数are 切莫用错闹笑话2. 句子结构:肯定句:主语+be+其他. He is a boy.否定句:主语+be not+其他. He is not a boy.一般疑问句:Be +主语+其他? Is he a boy?肯定回答