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當(dāng)數(shù)量概念作主語時主語一致的用法
作者:HMYFBB  文章來源:本站原創(chuàng)  點擊數(shù)  更新時間:2015-11-17  文章錄入:admin  責(zé)任編輯:admin



當(dāng)數(shù)量概念作主語時主語一致的用法

 

1. 表時間長度、錢數(shù)、速度等的詞組作主語時,通常將其視為整體,謂語動詞用單數(shù)。如:

Twenty years is a long time. 20年是很長的時間。

Ten dollars is all I have left. 我只剩下10美元。

2. “分數(shù)(百分數(shù))+of+名詞”結(jié)構(gòu)作主語時,謂語動詞的數(shù)與其中名詞的數(shù)保持一致。如:

About 20 percent of the pupils were absent that day. 那天大約有20%的學(xué)生未到。

Three-fourths of the surface of the earth is covered by sea. 地球表面的四分之三是海。

注:在現(xiàn)代英語中,有時即使該結(jié)構(gòu)中的名詞為復(fù)數(shù),其謂語也可用單數(shù)(即將其視為整體)。如:

Over eighty per cent of families own [owns] a television. 百分之八十以上的家庭已擁有電視機。

3.one in [out of]+復(fù)數(shù)名詞”作主語時,謂語動詞通常用單數(shù)。如:

Only one in ten students has passed the examination. 只有十分之一的學(xué)生通過了考試。

One out of twelve bottles was broken. 12個瓶子中有一個破了。

注:在非正式文體中有時也用復(fù)數(shù)謂語。如:

Nationwide, one in five adults are illiterate. 就全國范圍而言,五個成年人中有一個是文盲。

4. all of (some of, none of, half of, most of, lots of, plenty of)+名詞”作主語時,謂語動詞的數(shù)與其中名詞的數(shù)保持一致。如:

Half of the apple is bad. 這個蘋果有一半是壞的。

Half of the apples are bad. 這些蘋果當(dāng)中有一半是壞的。

Half of our money goes on food. 我們有一半的錢花在食物上。

5.one and a half+復(fù)數(shù)名詞”與“a+單數(shù)名詞+and a half”作主語時,國內(nèi)不少書認為,這兩個結(jié)構(gòu)作主語,謂語均用單數(shù)。如:

One and a half months has passed. / A month and a half has passed. 已經(jīng)過去了一個半月。

但是,國外一些詞書則認為,謂語動詞的數(shù)取決于這兩個結(jié)構(gòu)中名詞的數(shù)。如:

One and a half months have passed. / A month and a half has passed. 已經(jīng)過去了一個半月。

6.the [a] number of+名詞”作主語時,該結(jié)構(gòu)若用定冠詞,其后謂語用單數(shù);若用不定冠詞,其后謂語用復(fù)數(shù)。如:

The number of people invited was fifty, but a number of them were absent for different reasons. 50人被邀請參加,但是很多人因為各種原因而缺席。

 

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