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enty to nine, five to eight, a quarter to ten 表示“幾點(diǎn)幾分”還可直接用基數(shù)詞。例如: seven fifteen, eleven thirty, nine twenty 注意下列習(xí)慣表達(dá)方式: half an hour half a kilo one hour and a half= one and a half hours two and a half kilos = two kilos and a half one or two days = one day or two eighty meters long one thousand miles away five meters deep ( wide/ tall/ high/long) five meters in depth / width/ height/ length 序數(shù)詞的用法 ( 1)序數(shù)詞主要用作定語,前面要 加定冠詞 ,例如: The first truck is carrying a food baskets. John lives on the fifteenth floor. ( 2)序數(shù)詞有時前面可加 不定冠詞 來表示“ 再一 ”,“ 又一 ”這樣的意思,例如: We39。ll have to do it a second time. Shall I ask him a third time? When I sat down, a fourth man rose to speak. ( 3)表示年,月,日時, 年 用 基數(shù)詞 表示, 日 用 序數(shù)詞 表示。例如: 1949年十月一日讀作 : October (the) first, nieen fortynine 2020年九月十日讀作: September (the) tenth, two thousand and four ( 4)表示分?jǐn)?shù)時,分子用基數(shù)詞表示,分母用序數(shù)詞表示。 分子大于 1時,分母加 s。例如: 1/4 onefourth。 2/3 twothirds。 1/2 a(one)half。 1/4 1(one)quarter。 3/4 threequarters。 *76/92 seventysix over niytwo ( 5)序數(shù)詞也可以用作副詞, When did you first see him? Which horse came in first? ( 6)基數(shù)詞也能表示順序,如書刊的頁的數(shù)目,住所、房間、教室、電話號碼等等。 Page Eight, Room 304, Class Seven, 7)倍數(shù)表示法