五年级上册第一、二单元语法therebe句型专项讲解therebe句型的基本结构为:There+be(is,are)+主语+地点状语(在⋯⋯地方)
意思是:在某个地方有某人或某物
1、肯定句形式为:is﹢可数名词单数/不可数名词﹢地点状语Thereare﹢可数名词复数﹢地点状语例:There(be)somemilkintheglass
There(be)someapplesinthetree
There(be)abookonthedesk
There(be)alotofbooksonthedesk
There(be)apairofshoesunderthebed
2、肯定句改为否定句分两步:1)在be(is/are)动词后加not
即:is改为isnot(isn’t);are改为arenot(aren’t)2)若句子中有some一定要改为any,其他内容不变
例一:Thereisadoginfrontofthehouse
(改为否定句)Thereadoginfrontofthehouse
例二:Therearesomedogsinfrontofthehouse
(改为否定句)Theredogsinfrontofthehouse
练习:Therearesomebuildingsintheschool
(改为否定句)Therebuildingsintheschool
★therebe就近原则:如果therebe句型中有几个并列主语时,be动词的形式要与离其最近的一个主语在数上保持一致
例:There____(be)apieandtwohamburgersontheplate
There_______(be)twohamburgersandapieontheplate
There(be)somemilkandapplesinthefridge
There(be)someapple