there be句型一、 there be句型:表示存在,即:“某处有某物(或人)”或“某时有某事”。句型基本结构:There is + 可数名词单数 或 不可数名词 + 时间或地点。There are + 可数名词复数 + 地点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 动词根据最接近be 动词的那个名词决定。例如:(1)There is a pen on the desk .(2)There are two books on the desk.(3)There is a pen and two books on the desk.(4)There are two books and a pen on the desk.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。例如:(1)否定句:There is not a box on the table. 疑问句:Is there a cat in th