單數(shù)。指的是一整個家庭做主語，這里是一個整體，所以做主語時，謂語動詞用單數(shù)。a family of mice的中文翻譯是老鼠家族，mice是mouse（老鼠）的復數(shù)形式。

The cellar was dark and forbidding; moreover, I knew a family of mice had nested there.

這個地窖陰森可怕；而且我知道那兒有一窩老鼠。

The dark room had a threatening appearance; furthermore, I knew a family of mice had nested there.

那間黑屋子外觀很嚇人；而且，我還知道里面住了一窩老鼠。

1.family作“家庭”講的用法

Almost every family in the country owns a television.

這個國家?guī)缀跫壹叶加幸慌_電視機。

My family is large.

我的家是個大家庭。

2.family作“家庭成員”講的用法

His family are all waiting for him.

他的一家人都在等他。

My family go to the park.

我家人去公園。

來源：高三網(wǎng)