1 pair 意為“雙,件”,是可數(shù)名詞,用于指由兩個部分組成的物件,如shoes(鞋子),socks (短襪),stockings(長襪),glasses(眼鏡)等。pair 前面可加形容詞。結(jié)構(gòu)為:
a pair of+復數(shù)名詞→一件
two pairs of+復數(shù)名詞→兩件
a new pair of+復數(shù)名詞→一雙新的
He needs a new pair of shoes. 他需要一雙新鞋。
He bought a pair of glasses last week. 他上周買了一副眼鏡。
2 pair 作主語時,謂語動詞要同pair 一致,即:
a pair of...+單數(shù)動詞
two pairs of...+復數(shù)動詞
this pair of...+單數(shù)動詞
these pairs of...+復數(shù)動詞
A pair of socks was bought yesterday. 昨天買了一雙短襪。
These pairs of shoes are worn out. 這幾雙鞋穿破了。