Dolphinsoften jumpt from the sea entertainingthe crowds along the way.
Scientistshave noticed that dolphins show interest in pregnant human females.
Itis not known why this is so,
butone theory suggests that dolphins meet humans rarely. Therefore, they areinterested in beings they don't find every day.
Pregantwomen are more unique sight.
Theanimal's fascinating natural sonar allows them to detect your state to rather detailed measure.
老师们好！
从逻辑上来讲，是不是也可用不定式toentertain...表目的呢？这里的so可否用it来替换？so和it这二者作替代的时候可以互换吗？或者到底有哪些不同呢？
怎么样剖析理解 to ratherdetailed measure.？程度还是结果状语呢？
1 entertaining不能改用不定式，由于该动作与jump是同时发生的，而且分词做的是结果状语，不是目的状语。so不能用it替换。so在此意为true, factual，是形容词。
2 to rather detailed measure理解为程度更为合理。
