The researchers took measurements on days when the volunteers stood,and when they sat around.When they looked at the data,there were some striking differences.Blood sugar became level after a meal much quicker on the days when volunteers in the study stood compared with the days they spent in a chair.Standing also burned more calories-about 50 calories an hour.Over the course of a year that _____ add up to about 30000 extra calories ,or around 3.63 kg of fat.
这里答案是would,想问下是什么意思,could为什么不可以?
Over the course of a year that would add up to about 30000 extra calories ,or around 3.63 kg of fat.
【翻译】在整个一年的时间里,那全部加起来大约会增加30000卡路里,或者说大约3.63公斤的脂肪。
整段话的时态,都是过去时,表示过去发生的一些列研究和事实。
will 表示现在对将来的“推测”,其程度仅次于must。而would 是will 的过去时,是当时的推测,是写这篇文章时的推测,意为“可能;会”。
can 和 could 也可表示推测,表示主观推测时,只用于“疑问句和否定句”,不用于肯定句。但表示“客观可能性和理论可能性”时,则可以用于肯定句。
本句,是作者个人的在过去的主观推测,故用would 而不用could。
注意:翻译颜色的对应。
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