上海教育出版社英语七年级下册There be句型讲解
There be句型讲解
一、There be句型表示某处存在某物或某人。
结构：(1) There is +单数可数名词/不可数名词+ 地点状语. (2) There are +复数名
词+地点状语.
如：① There is a bird in the tree.
② There is a teacher and many students in our classroom. ③ There are two boys and a girl under the tree.
二、否定—在be 后加上not 或no
【注意】not a/an/any + n. = no+ n.
例如： There are some pictures on the wall.
→There aren't any pictures on the wall. =There are no pictures on the wall.
There is a bike behind the tree.
→ There isn't a bike behind the tree. =There is no bike behind the tree.
三、一般疑问句—把be 动词调整到句首，再在句尾加上问号。
【注意】：当肯定句中有some 时，要将其改为any （否定变化也一样）。
例如：There is some water on Mars. → Is there any water on Mars?
There are some fish in the water. →Are there any fish in the water?
四、特殊疑问句
对主语提问：主语是人的时候，则用who 引导
主语是物的时候，则用what 引导。
【注意】：无论原句的主语是单数还是复数，对之提问时一般都用be 的单数形式(回答时却
要根据实际情况来决定) 。 如：There are many things over there. →What's over there?