精选优质文档-倾情为你奉上 简单句的五种类型和THERE BE 句型在学习五种简单句之前，有必要学习一下动词的种类：A. 行为动词（实意动词）vi. Go come happen take placevt. Do finish studyB. 联系动词 be(is am are /was were) look turn get fall smell taste C. 情态动词 can must may should have to D. 助动词 do has have be did 1在使用行为动词时要遇到人称与动词的搭配问题，当主语是第三人称(he,she,it, this, that等)单数时，要注意动词词尾的变化问题。有以下三种变化形式：A. 以x , s, sh, ch, o 结尾的动词均加 “es”:eg. fix- fixes guesses washes watches goesB. 以辅音字母加y结尾的动词，将y换成 “ies”,
