新概念英语的问题It has been estimated（估计） that if the bridge were pa

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新概念英语的问题
It has been estimated（估计） that if the bridge were packed with cars,it would still only be carrying a third of its total capacity.
Even if the bridge were packed with cars,it would still ------ three times the load.
A.be carrying B.be able to carry C.only carry D.carry
选什么?why?

B.be able to carry
首先要理解两句话的意思,他们说了一个事情,但是分别在两个角度.第一句,if the bridge were packed with cars,it would still only be carrying a third of its total capacity.大概意思是“如果这座桥上满载汽车,仍然仅是这座桥承重的三分之一”形容这座桥很结实.在第二句中,他表达了同样的意思：“Even if the bridge were packed with cars”即使这座桥满载汽车,“it would still ------ three times the load.
”它仍然……三倍的载重.注意“three times ”三倍,意思统一起来就是：即使这座桥满载汽车,它仍然能够再承担三倍的载重.
应该是形容这座桥的能力,所以应该用表达能力的词语be able to
A是现在进行时,题目中没有表示现在正在进行的时间状语和意图
C是“仅仅”不足以表达桥的能力
D是动词原型,乍一看也对,但是意思不通顺,“即使满载,仍然载三倍”难道把汽车摞起来吗?

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