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the pair of shoes和a pair of sh

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the pair of shoes和a pair of shoes作主语时,谓语动词的单复数形式有没有区别?如: (1) The pair of shoes____ . A.are worn out B.is worn out (2)A pair of shoes____ . A.are worn out B.is worn out ,它们分别选什么?
解题思路: ①shorts, trousers, runners, shoes 常用复数,作主语时,谓语动词也用复数。 eg. Shoes are old. 鞋旧了。 ②表示“一”的概念时,用a pair of…. a pair of shorts 一条短裤 a pair of trousers 一条裤子 a pair of runners 一双跑鞋 a pair of shoes 一双鞋 这些词组作主语时,谓语动词用单数。 eg. The pair of shoes is old. 这双鞋旧了。
解题过程:
trousers, glasses, clothes, shoes, 等词作主语时,谓语用复数,但如果这些名词前有a (the) pair of等量词修饰时,谓语动词用单数。如:
My glasses are broken.
The pair of shoes is under the bed .
由此可知,the pair of shoes和a pair of shoes作主语时,谓语动词用单数形式。如:
(1) The pair of shoes____ .
A.are worn out B.is worn out
选B。
(2)A pair of shoes____ .
A.are worn out B.is worn out
选B。
最终答案:略