【正文】
1,分母變復(fù)數(shù) 分?jǐn)?shù)有以下幾種表達(dá): 1/3 one third; 2/3 two thirds, 2/5 two fifths ; 1/2 a half; 1/4 a quarter, one and a half等。 當(dāng)表示不確切概念時, hundred, thousand, million等詞與 of 連用,要用復(fù)數(shù)形式,但前面不能再加數(shù)字。 考點小練 young man plans to have a (two)try after his failure. Morrison is considered as one of the best writers of the (twenty)century. seconed twentieth2 概數(shù)詞 當(dāng)表示確切概念時, hundred, thousand, million等詞與具體的數(shù)字 one, two… 或 several, some, many等連用,要用單數(shù)形式。 (3)序數(shù)詞前面也可以加不定冠詞 a或 an,表示“又一,再一”,內(nèi)含順序性。 (2)序數(shù)詞前若有限定詞,則可以不用加 the。 (1)序數(shù)詞前無限定詞時,必須加 the。 (5)“基數(shù)詞 +連字符 +名詞 (+形容詞 )”作定語,名詞用單數(shù)形式