one/ones用來代替前面提到過的可數名詞,one指代單數,ones指代復數,所代替的是同名異物,表示泛指,可有前置定語或後置定語,也可單獨使用,特指時必須加 the,用the one/ones .
one?
1)代替上文中出現過的單數可數名詞,表泛指(同類但不是同壹)前面可以有冠詞或形容詞,也可以有this或that或another,但前不能有物主代詞:
例句:I have lost my pen.I’m going to buy one.
2)作為不定人稱代詞,可泛指“任何壹個人”,有one's 和oneself形式.多用於正式文體,口語中也可用he/his代替第二個one/one's.
例句:One has to take care of oneself and one's family if he can.
ones
ones是one的復數形式,常用來代替復數可數名詞,表泛指,前面不用物主代詞修飾,也不用these或those來直接修飾,除非ones前面有形容詞:
例句:?I have a new coat and several old ones.