存在句(There be).pptVIP

存在句（There be） ?? 存在句的结构特征 存在句的结构模式是： There + be + NP + Locative Expression (+ Temporal Expression) ? 存在句的引导词 There在句中位于主语位置，实义主语是随后的名词词组，There起形式主语的作用，在疑问句中， 它和操作词倒装。注意存在句的引导词There和句首状语There的区别。 存在句的实义主语 实义主语的名词词组通常是非确定特指，即通常带有不定冠词、零冠词及其他非确定意义的限定词, some, any, many, much, a lot of, enough, little…基本句型凡带有非确定特指的名词词组， 一般都可用There 存在句转化。 存在句的谓语动词 存在句的谓语动词主要是动词be的某种形式， 分限定形式和非限定形式。 限定形式：一般现在时、一般过去时、现在完成体、过去完成体和情态助动词+不定式。除be外， 某些表示存在意义的不及物动词如：exist, remain, occur, stand, lie.等，能用于there存在句。地点状语前移，there可省。 Eg. There can be very little about his guilt. There are many desks in the classroom. There used to be a hospital round the corner. There appears to be no doubt about it. There stands a house behind the tree. Behind the tree (there )stands a house. 存在句的非限定形式 1）存在句的非限定形式 there to be 和 there being结构 2）there to be 和 there being结构用法与区别 there to be：作for 介词补语 作动词（except, want, like, prefer, hate…）的宾语 eg. They planned for there to be another meeting Members like there to be plenty of choice. there being : 作除for外的介词的补语 作主语和状语 eg. John was relying on there being another opportunity. There being a bus stop so near the house is a good advantage. 存在句的非限定形式与限定形式的转化 eg. For there to be so few people in the street was unusual. = It was unusual that there were so few people in the street. ? * * *