英语 rain

It's
raining.正在下雨（强调现在）
It
rains
heavly.雨下得很大（强调状态）
It
rained
yesterday.昨天下了雨
It
has
rained
for
three
days.已经下了三天雨了
I
took
an
umbrella
yesterday,because
I
thought
it
would
rain.我以为昨天要下雨，所以带了伞（虚拟语气，实际上没有下）
It's
a
rainy
city.这个城市经常下雨(形容词用法)
It's
a
heavy
rain.(名词用法)
现在能想到的就这么多了，用法不是很难。

rain可以作名词和动词
1.名词：雨;
下雨
例如：There
was
a
heavy
rain
during
the
night.
夜间下了一场大雨.
heavy/light
rain
大[小]雨
*
Don't
go
out
in
the
rain.
不要冒着雨出去
2.动词。下雨;
降雨:
It
is
raining
下着雨呢
或者It
rained
hard
all
day.
下了一整天的大雨.