1. 拼法需要当心的序数词
在first,second和third之后的序数词都由基数词加 -th构成,但要注意以下拼法略有变化:
twentieth, thirtieth, fortieth… fifth eighth ninth twelfth..
2. 序号的表示
1) 基数词放在名词之后,通常写作阿拉伯数,如:
page 4(P.4)读作page four Room301读作room three O [ou] one
Tel No.864412读作telephone number eight six double four one two
2) 序数词放在名词之前,通常前面要加定冠词.如:
the Eighth Lesson(=Lesson Eight) the First Middle School(=Middle School No. 1)
3. 数词后面的名词用单数还是用复数
表示计量时,基数词后面的名词用复数形式,但是在带有数字的复合名词(常用作定语)里,名词只用单数形式。试比较:
They baby is only six moths old. This is a six-moth-old baby.
I have five pounds. I have a five-pound note.
4. hundreds / thousands / millions of + 名词复数
hundred, thousand和million后加 –s与of连用,表示“数百、数千、数百万”。
He has bought hundreds of books this year.
Thousands of seagulls arrived to help the farmers save their crops.
【【高一英语】语法:数词的用法详解】相关文章:
★ 英语语法中的分词
★ 英语语法:表语
★ 英语语法:宾语
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