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one third the length为何中间没of

来源:www.slktls.com 2024-07-11

attachments-2022-12-7PvNZAUQ63a7cdf8dd1b0.png

上图截自2019版人教版高中英语新教程必学一的 Unit 4(p55)。

请问one third the length 为何中间没of?

譬如说成:one third of the length

由于我见过以下例句:

Forests cover one thirdof the country. 森林覆盖了该国三分之一的面积。

On weekdays, one third ofthe room functions as workspace. 在工作日,房间的1/3用作办公地区。

One third of thecommittee comes up for election every year. 每年有三分之一的委员要改选。

前面几位老师从不同角度对这个问题作知道答,都非常不错。我补充几个看法。供网友参考:

1.先说结论:

教程中的句子可以添加of,即教程中的 one third the length…也可说成 one thirdof the length

正如曹老师所说:有of时,分数词是中心词;没of时,分数词是前位限定词。

依据剑桥语法、柯林斯语法等,分数用作限定词时,其后一般只限于接抽象名词(特别是表示数目意义的抽象名词)。如:

one third theprice of the house 房屋价格的三分之一

three-quarters the length of the rope 绳子长度的四分之三

two thirds the population 人口的三分之二

one-third the size of the box 箱子大小的三分之一

one-third the profits 收益的三分之一

若是具体名词,则需要要用of(此时分数不是限定词,而是中心词)。如:

误:one third the book

正:one third of the book

2.后说依据:

下面的截图摘自张月祥主编《英语语法一点通》p35(注:张月祥系章振邦《新编英语语法》的主要作者之一):

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下面的截图摘自《剑桥英语语法》p434: 

attachments-2022-12-DtDXaX9g63aac1972b4d7.png

下面的截图摘自夸克等人的《英语语法大全》p353(参见alex119老师有关评论): 

attachments-2022-12-t4bzPlPN63aac1a8d9dfa.png

下面的截图摘自贝瑞的《限定词与数目词》p66:

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