现在分词做定语与定语从句的区别.

237. It seems likely that a number of astronomical phenomena, such as the formation of planetary nebulas, may be caused by the interaction where two stars orbit each other at close range.

(A)  may be caused by the interaction where two stars orbit each other

(B)  may be caused by the interaction between two stars that each orbit the other

(C)  are because of the interaction between two stars that orbit each other

(D)  are caused by the interaction of two stars where each is orbiting the other

(E)   are caused by the interaction of two stars orbiting each other

Choice E, the best answer Choice C Also, the phrase two stars that orbit each other illogically suggests that there are two particular stars causing all the phenomena in question, rather than various sets of stars in various loca­tions.???(现在分词与从句的区别).帮忙解惑,谢谢!

C：那两个相互orbit的星星；(只有那两个，别的都不是)

E：两个星星相互orbit（哪怕有一堆星星，只要相互orbit就可）

that从定：限定修饰，多修饰一次性的动作；

doing修饰：多修饰多次性的动作。

JerryGuan讲的好清楚，不过还是补充一下下，

泛指 和 特指 的关系：

分词是泛指，表示随便那两个星星，只要互相orbit就可以

定语从句是特指，指代的是：就那两个相互orbit的星星，（其他星星都不行，orbit也不行，呵呵）

在这一题上我理解了，只是以前不知道分词和定语从句还有这样的区别。看来他们的区别还得好好体会一下。谢谢！