题型分类：推论题
题干分析：关键词meteorite theory；关键词定位到第四段第一句，可知需要阅读整段。该段主要说了导致灭绝的流星理论，每个选项去文中定位。

选项分析：

B选项：最初不被科学家接受。对应原文的Most scientists came to accept the meteorite theory after evidence came to light that a circular formation，在有证据之后才接受，可见最初不接受，为正确。

A选项：对应原文Most scientists came to accept the meteorite theory after evidence came to light that a circular formation，最终被接受相悖。

C选项：对应原文Most scientists came to accept the meteorite theory after evidence came to light that a circular formation，最终被接受相悖。

D选项：原文未提到修改理论，属于无中生有。