OG10-47:请教并列。谢谢。

明手级顶

OG47 

47. Displays of the aurora borealis, or "northern lights," can heat the atmosphere over the arctic enough to affect the trajectories of ballistic missiles, induce electric currents that can cause blackouts in some areas and corrosion in north-south pipelines.

1. to affect the trajectories of ballistic missiles, induce

2. that the trajectories of ballistic missiles are affected, induce

3. that it affects the trajectories of ballistic missiles, induces

4. that the trajectories of ballistic missiles are affected and induces

5. to affect the trajectories of ballistic missiles and induce

答案选E，没有问题。但是我在复习的时候，还是不能确认induce到底是和affect并列，还是跟heat并列。请教各位：）谢啦。

linlin3151

供参考：
如果与heat并列，则需要在and前加一个comma.原因如下:
from: The American Heritage Guide to Contemporary Usage and Style
compound predicates
The parts of a compound predicate are not normally separated by a comma except to prevent misreading.

The element was discovered in 1862 and was later used in explosives.
We worked hard on the project but could not finish in time.
I called the loan officer who left me the message, and asked for more information

明手级顶

谢谢楼上的分析。个人感觉像集合，大集合前要用COMMON标出表示，小集合直接加连词就好了。