问题在附件中

此题关键是对下段的理解：
And this process need not be left to the unconscious. Cartwright believes one can exercise conscious control over recurring bad dreams. As soon as you awaken, identify what is upsetting about the dream. Visualize how you would like it to end instead; the next time it occurs, try to wake up just enough to control its course. With much practice people can learn to, literally, do it in their sleep.


Cartwright认为，人们可以通过练习有意识地控制反复出现的恶梦（Cartwright believes one can exercise conscious control over recurring bad dreams. ），即做梦是可控的、并不完全属于无意识的活动，故选D。
如选B，原文是visualize how you would like it to end，即设想这个梦会如何结束。而非visualize bad dream。