often had more chemical reactions in the front of their brains. The researchers thought lowering the temperature of the brain might help.
The first two nights of testing, the patients wore no water caps. During the next two nights, the caps were worn, but the water was not cooled. Then the researchers cooled the water a little for two nights. 40
The researchers found that the water caps did not help the insomnia patients until the temperature was about 14℃. Most of the patients fell asleep faster and slept better when the coolest water was moving around their heads. A．Some say sheep counting might help. B．It just means cooling down your brain. C．It is late at night and you are still awake. D．The caps had tubes inside filled with water.
E．If that does not work, listen to some soft, beautiful music.
F．They believe they have discovered something important that needs more research. G．On the final two nights of the study, the temperature of the water was made much cooler.
第三部分 英语知识运用（共两节，满分45分）
第一节 完形填空（共20小题；每小题1.5分，满分30分）
阅读下面短文，从短文后各题所给的四个选项（A、B、C和D）中，选出可以填人空白处的最佳选项，并在答题卡上将该项涂黑。
Have you ever not wanted to do something so badly? Well, that’s how I 41 about joining Madcaps, a mothers and daughters’ club assisting philanthropies(慈善事业). 42 , my feeling changed finally. Now I believe if you adopt a(n) 43 attitude, you might just 44 enjoying it.
Six months ago, my mom told me the club asked us to work as 45 at Saint Vincent de Paul Homeless shelter. That meant I had to 46 in the dirty homeless shelter for at least 20 hours.
The first time we went there, a lady led us to the kitchen where we 47 my five fellow Madcaps classmates — they also wore the same mark. Si