roof sth with sth
with 后面接盖屋顶所用的材料。
They roofed the shed with corrugated metal.
他们用波纹金属板给棚屋盖了顶。
给…盖屋顶；为…装屋顶
roofs — third person singular of roof
庇护；遮蔽；穿越屋顶；在屋顶间行走；用屋顶覆盖或装饰；通过行走或攀爬穿越建筑物的屋顶；像在屋顶下那样提供庇护
To put a roof on a building or other structure.
用屋顶覆盖或装饰
To cover or furnish with a roof.
通过行走或攀爬穿越建筑物的屋顶
To traverse buildings by walking or climbing across their roofs.
像在屋顶下那样提供庇护
To shelter as if under a roof.
一般现在时
They roof the house with tiles.
他们用瓦片给房子盖屋顶。
一般过去时
The workers roofed the building last month.
工人们上个月给大楼盖了屋顶。
现在完成时
We have roofed the shed in a day.
我们在一天内给棚子盖好了屋顶。
规则动词：过去式和过去分词均为 roofed，现在分词为 roofing。
They roofed the new cabin with cedar shingles last summer.
去年夏天他们用雪松木瓦给新小屋盖了屋顶。
用法提示：roofed 是 roof 的过去式，作及物动词，表示‘给…盖屋顶’。
The workers are roofing the barn before the rainy season begins.
工人们在雨季开始前正在给谷仓加盖屋顶。
用法提示：roofing 是 roof 的现在分词，与 are 构成进行时，表示‘正在给…盖屋顶’。
We have roofed the shed, so the tools will stay dry.
我们已经给棚屋盖了屋顶，所以工具不会受潮。
用法提示：roofed 是 roof 的过去分词，与 have 构成现在完成时，表示‘已经给…盖好屋顶’。
with 后面接盖屋顶所用的材料。
They roofed the shed with corrugated metal.
他们用波纹金属板给棚屋盖了顶。
被动形式常用来描述屋顶是用什么材料盖成的。
The old cottage is roofed with straw.
那座老农舍是用稻草盖顶的。
此义指像在屋顶下那样庇护某人或某物，比较书面。
The charity roofed hundreds of families after the flood.
洪水过后，那家慈善机构为数百个家庭提供了栖身之所。
grammar · medium
易错句子They roof the house last summer.
正确表达They roofed the house last summer.
roof 的过去式是规则变化，即直接加 -ed 变成 roofed；句中有 last summer 这一明确的过去时间，谓语必须用过去式，不能保留动词原形。
grammar · medium
易错句子The old cottage was roofed by straw.
正确表达The old cottage was roofed with straw.
被动语态中，by 用来引出动作的执行者，而表示“用某种材料”时要用 with；稻草是覆盖用的材料，不是施动者，所以只能说 was roofed with straw。
grammar · medium
易错句子The house roofed with tiles last year.
正确表达The house was roofed with tiles last year.
英语被动语态必须是 be + 过去分词：roofed 是过去分词，前面必须有 be 动词（此处为 was）才能构成被动；汉语里没有对应的助动词，学习者容易把它漏掉。
给房子盖屋顶
They plan to roof the house before winter.
他们打算在冬天前给房子盖上屋顶。
用瓦片盖成屋顶的
The old cottage was roofed with red tiles.
那间老屋的屋顶是用红瓦盖的。
给…加上顶盖（使其封闭）
They roofed in the small courtyard last summer.
他们去年夏天给小院加了顶盖。
新盖好屋顶的
The newly roofed barn looks much sturdier.
新盖好屋顶的谷仓看上去结实多了。
在…上方搭建顶棚；为…加盖屋顶
Workers roofed over the walkway to keep the rain out.
工人们在通道上方搭了顶棚来挡雨。
发长 /uː/ 音 (如 food, boot)
Choose the next layer that will help you use roofs with more confidence.
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