it snows / it is snowing
天气动词，主语用虚拟 it；时态和语数变化体现在 snow 上，如 it snowed、it is snowing。
It snows heavily in the mountains in winter.
冬天山里下大雪。
降雪；飘雪
snowed — past of snow
用雪覆盖；撒雪般铺满；使像雪一样飘落；使（头发）变白；使满头白发；(以虚拟主语it引导)下雪；使(某物)像雪一样降落
(of snow) to fall from the sky; used with the dummy subject 'it'
主语通常用it表示天气，如：It's snowing.（正在下雪。）
(以虚拟主语it引导)下雪
Preceded by the dummy subject it: to have snow (noun etymology 1, noun sense 1) fall from the atmosphere.
使(某物)像雪一样降落
To cause (something) to fall like snow.
用雪或类似雪的东西覆盖或散布(某地或某物)
To cover or scatter (a place or thing) with, or as if with, snow.
使(头发)变白；也指使(某人)头发变白
To cause (hair) to turn white; also, to cause (someone) to have white hair.
一般现在时
It snows a lot in winter here.
这里冬天经常下雪。
一般过去时
It snowed heavily last night.
昨晚下了一场大雪。
现在完成时
It has snowed twice this week.
这周已经下了两次雪。
规则动词；常与形式主语 it 连用表示下雪。
It snowed heavily last night, so the roads are slippery this morning.
昨晚下了很大的雪，所以今天早上路面很滑。
用法提示：“snow”作动词，用虚拟主语it表示“下雪”，这里用过去式snowed。
It is snowing outside; let's stay inside and drink hot tea.
外面正在下雪，我们待在屋里喝热茶吧。
用法提示：“snow”作动词，用进行时“is snowing”表示正在下雪，主语仍为虚拟的it。
It snows a lot in this mountain village every winter.
这个山村每年冬天都下很多雪。
用法提示：“snow”作动词，用一般现在时第三人称单数snows，表示常态性的降雪。
天气动词，主语用虚拟 it；时态和语数变化体现在 snow 上，如 it snowed、it is snowing。
It snows heavily in the mountains in winter.
冬天山里下大雪。
及物用法，表示使某物像雪一样飘落；on/over 引出落下的地方。
The cherry trees snowed petals over the path.
樱花树把花瓣像雪一样撒在小路上。
被动结构，表示被雪完全覆盖；by 引出造成覆盖的雪或风雪。
The car was snowed under by the heavy fall.
那辆车被大雪埋住了。
grammar · medium
易错句子Last night snowed a lot.
正确表达Last night it snowed a lot.
英语中表示天气的动词必须带形式主语 it，如 It rained / It snowed；中文却可以说“昨天下雪了”，不需要主语。因此不能把时间状语直接当主语，必须在动词前补上 it。
grammar · medium
易错句子It snowed big last night.
正确表达It snowed heavily last night.
中文用“大”来修饰降雪，说“下大雪”；英语中雨雪的大小要用 heavy/heavily 一类词，不能用 big。It snowed big 不符合英语搭配，应改为 It snowed heavily（或 There was a heavy snowfall）。
grammar · medium
易错句子Look! It snows!
正确表达Look! It is snowing!
中文动词没有时态变化，“看，下雪了”不区分时态；英语描述此刻正在发生的天气要用现在进行时 It is snowing。It snows 只用于经常性、习惯性的情况，如 It snows a lot here in winter。
下大雪；雪下得很大
It snowed heavily all night.
整夜都在下大雪。
下小雪
It was snowing lightly when we left the house.
我们离开家的时候正下着小雪。
被雪困住，无法出门
The village was snowed in for three days.
这个村子被大雪困了三天。
下一整夜雪
It snowed all night and the roads were covered.
雪下了一整夜，路上都积满了雪。
开始下雪
It started to snow just before dark.
天快黑的时候开始下雪了。
Choose the next layer that will help you use snowed with more confidence.
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断断续续地下雪
It snowed on and off all afternoon.
整个下午断断续续地下着雪。