surrounding-surroundings。surroundings作为名词总是以复数形式出现
例句:
The surroundings of his house are clean now.
主语是surroundings是复数,of his house 只是描写the surroundings 叫做表语
surroundings 
名词(周围的)环境[事物] 环境,周围的事物( surrounding的名词复数) 一带
surroundings 相关例句
名词
The house is in beautiful surroundings.    这座房屋四周的环境优美。Schumacher adapted effortlessly to his new surroundings.           舒马赫非常轻松地适应了新环境。   A peaceful holiday home in beautiful surroundings.           环境优美宁静的度假屋