Cait, 11, was trying to fall asleep when her 8-year-old brother, Doug, came into her room. He looked around, but seemed really out of it. Then Doug went back into the hallway and stood there looking straight up at the light. This was really strange. Cait didn’t know what to do. Just then, Cait’s father appeared and explained Doug was sleepwalking.
Not all sleep is the same every night. We experience some deep, quiet sleep and some active sleep, which is when dreams happen. You might think sleepwalking would happen during active sleep but a person isn’t physically active during active sleep. It usually happens in the first few hours of sleep in the period called deep sleep.
The truth is that not all sleepwalkers walk. Some simply sit up or stand in bed or act like they’re awake when, in fact, they’re asleep! Most, however, do get up and walk around for a few seconds or for as long as half an hour.
Sleepwalkers’ eyes are open, but they don’t see the same way they do when they’re awake. They tend to go back to bed on their own and won’t remember it in the morning.
You also might have heard that sleepwalkers can get frightened if you wake them up. That’s true, so what do you do if you see someone sleepwalking? You should call for a grown-up who can lead the person back to bed. And once the sleepwalker is tucked back in bed, it’s time for you to get some sleep, too!
 
Word Bank
tend                  倾向于
frightened            受惊的
tuck                  掖好被子
11．What does “out of it” most probably mean in Chinese?
A．茫然不觉 B．心满意足 C．垂头丧气 D．悠然自得
12．When does sleepwalking usually happen?
A．During active sleep. B．In the first few hours of sleep.
C．When dreams begin. D．When we're trying to fall asleep.
13．Which paragraphs tell what sleepwalkers do?
A．①② B．②③ C．③④ D．④⑤
14．What should we do if we see people sleepwalking?
A．Wake them up. B．Walk around with them.
C．Do nothing and get your own sleep. D．Ask grown-ups to lead them to bed.
15．Who is the text written for?
文章讲述了晚上梦游的事情，同时指出了梦游发生的时间和表现，如果遇到梦游的人，要找一个成年人带梦游的人回去睡觉。
11．A【解析】词意猜测题。根据下文中“Cait’s father appeared and explained Doug was sleepwalking. Sleepwalkers’ eyes are open, but they don’t see the same way they do when they’re awake.”可知，道格正在梦游，梦游者的眼睛是睁开的，但与他们醒着的时候看东西的方式不同，所以虽然道格环顾四周，但是他毕竟是在梦游，此处划线部分out of it的意思是“茫然不觉”，表示“他看东西的方式和醒着的时候不一样”。故选A。
12．B【解析】细节理解题。根据第二段中“It usually happens in the first few hours of sleep in the period called deep sleep.”可知，梦游通常发生在睡眠的最初几个小时。故选B。
13．C【解析】主旨大意题。根据第三段中“Some simply sit up or stand in bed or act like they’re awake when, in fact, they’re asleep! Most, however, do get up and walk around for a few seconds or for as long as half an hour.”和第四段中“Sleepwalkers’ eyes are open, but they don’t see the same way they do when they’re awake.”可知，这两段介绍了梦游者会做什么，有些人只是坐起来，或者站在床上，或者表现得好像他们是醒着的，大多数人都会站起来走动几秒钟，或者长达半个小时。故选C。
14．D【解析】细节理解题。根据最后一段中“You should call for a grown-up who can lead the person back to bed.”可知，如果你看到有人在梦游，你应该找个成年人带他回去睡觉。故选D。
15．D【解析】推理判断题。根据最后一段中,作者提到的如何应对梦游“You should call for a grown-up who can lead the person back to bed.”你应该找一个成年人把梦游的人领回到床上，因此可知这里的“you”指的是孩子，因为需要找一个成年人，所以这篇文章是给孩子们写的。故选D。