大权621 11-17 答案有问题。

1.        Scientists calculated that the asteroid, traveling at 46,000 miles an hour, is on an elliptical path that orbits the Sun once a year and regularly brings it back toward Earth.

(A) hour, is on an elliptical path that orbits the Sun once a year and regularly brings it

(B) hour, is orbiting the Sun once a year on an elliptical path that regularly brings it

(C) hour, once a year orbits the Sun, regularly bringing it on an elliptical path

(D) hour and orbiting the Sun once a year on an elliptical path, regularly bringing it（B）

(E) hour, orbits the Sun on an elliptical path once a year and that regularly brings it

答案 给 B， 大权注释 给 A。 我也不知道哪个？

麻烦NN帮我分析一下这道题。 不胜感激

（A) hour, is on an elliptical path that 【orbits the Sun once a year】 and 【regularly brings it。。。。。】

我感觉选A

(B) hour, is orbiting the Sun once a year on an elliptical path that regularly brings it

B的逻辑意义也是可以的

但是就是有一点， is orbiting the Sun once a year ，【is orbiting】不大好，还是orbits一般现在时比较好，因为是一种事实，一般现在时比较好

查了朗文

同意B了

轨道不能orbit

比如应该是：The satellite orbits the Earth every 48 hours.

但我就是对orbiting不满意

轨道不能orbit 谢谢~

bring  的逻辑主语 是 PATH 。 谢谢。

it 指代 asteroid

试着回答四楼的问题，我觉得is orbiting反而要比orbits好。的确一般现在时可以表示一种事实，但是过于平淡了，be (always) doing其实也可以表达一种现在的事实，甚至还有“经常，总是，往往如此”的强调作用。哈哈，个人之见。

Scientists calculated that the asteroid, traveling at 46,000 miles an hour,

traveling表伴随,当然这里也可以用现在分词,用进行时态表伴随,