來源:網絡資源 作者:中考網整理 2019-12-10 17:31:18
(3) 表示“……十”的數詞的復數形式可用來表示人的歲數或年代,例如:
He is in his early thirties.
He died still in his forties.
This took place in 1930s.
(4) 表示時刻用基數詞。例如:
We get up at six.
The workers begin work at eight.
表示“幾點過幾分”,用介詞past,但須在半小時以內。例如:
ten past ten,
a quarter past nine,
half past twelve
表示“幾點差幾分”用介詞to, 但分數須在半小時以上。例如:
twenty to nine,
five to eight,
a quarter to ten
表示“幾點幾分”還可直接用基數詞。例如:
seven fifteen,
eleven thirty,
nine twenty
2. 序數詞的用法
(1)序數詞主要用作定語,前面要加定冠詞,例如:
The first truck is carrying a foot baskets.
John lives on the fifteenth floor.
(2)序數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:
We'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)由幾個序數詞和基數詞在拼寫時不對應,很容易寫錯,應特別注意。它們是:one---first, two---second, three---third, five---fifth, eight---eighth, nine---ninth, twelve---twelfth。
(4)表示年,月,日時, 年用基數詞表示,日用序數詞表示。例如:
1949年十月一日讀作: October (the) first, nineteen sixty
2004年九月十日讀作:September (the) tenth, two thousand and four
(5)表示分數時,分子用基數詞表示,分母用序數詞表示。分子大于1時,分母加-s。例如:
three fourths,
one second,
two fifths
(6)序數詞有時用縮寫形式:
first→1st second→2nd
third→3rd fourth→4th
twenty-second→22nd
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