There

be

,指存在有即某地有某物,与最靠近它的名词来决定用is(单数/

不可数名词)

还是are(可数名词复数)如

There

is

a

book

on

the

desk.

There

are

some

books

on

the

desk.

There

is

some

water

on

the

floor.