此文中第一句句子为什么不用过去完成时?Although Campbell reached a speed of over 304 miles per hour,he had great difficulty in controlling the car .Campbell was disappointed to learn that his average speed had been 299 miles per hour.

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此文中第一句句子为什么不用过去完成时?AlthoughCampbellreachedaspeedofover304milesperhour,hehadgreatdifficultyincontroll

此文中第一句句子为什么不用过去完成时?Although Campbell reached a speed of over 304 miles per hour,he had great difficulty in controlling the car .Campbell was disappointed to learn that his average speed had been 299 miles per hour.
此文中第一句句子为什么不用过去完成时?
Although Campbell reached a speed of over 304 miles per hour,he had great difficulty in controlling the car .Campbell was disappointed to learn that his average speed had been 299 miles per hour.However,a few days later,he was told that a mistake had been made.His average speed had been 301 miles per hour.Since that time,racing drivers have reached speeds over 600 miles an hour.
第一句用had reached 译为尽管他的速度已经达到了····感觉更合理啊
下面的提到达到速度都用过去完成,最后一句同样是动词reach作者用的是过去完成···
他到底什么意思···这样不同的用法有什么区别吗

此文中第一句句子为什么不用过去完成时?Although Campbell reached a speed of over 304 miles per hour,he had great difficulty in controlling the car .Campbell was disappointed to learn that his average speed had been 299 miles per hour.
过去完成时不等于在过去的现在完成时 而是过去的过去式.
第二句当中用过去完成时是因为Campbell在disappoionted的时候已经没有300miles那么快了 他在回想之前的速度 所以用的是过去完成时
最后一句是现在完成时 意思是 自那之后 赛车手就开到300mph以上了（你应该打错了吧 不是600）

Sorry,我没学到过去完全时,So不会......

reach是短暂性动词 短暂性动词不可以用在完成时中

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