If someone is sleepwalking, they are walking around while they are asleep. Sleepwalking happens when a person is not fully asleep but not quite awake. Usually we deepest level of sleep to a lighter level and stay there. Sleepwalkers come right up to wake levels but do not fully awaken. It is at this time that they get up and walk.
The longer a person stays in deep sleep, the more time it takes for the sleep to be broken. That opens up the possibility of being awakened (but not fully) and of sleepwalking.
Sleepwalking happens more often among young people than grown-ups because young people usually have more deep sleep. Up to 7% of 12-year-old sleepwalk, while only about 2% of grown-ups sleepwalk. We get less deep sleep as we are getting older and the possibility of sleepwalking is also reduced.
Sleepwalking may run in families, too. If one of your parents was a sleepwalker you have about a 50% possibility of also being a sleepwalker.
1、This passage is about__________.
2、Who has more possibility of sleepwalking? __________
3、What does “reduced” mean in “... the possibility of sleepwalking is also reduced” in Paragraph 3?
4、People have more possibility of developing sleepwalk__________.
5、This passage may be from__________.
问题1选项
A.why sleepwalking happens
B.where sleepwalkers go
C.what sleepwalkers do
D.when sleepwalkers walk
问题2选项
A.Grown-ups
B.Young people.
C.Old men.
D.Old women.
问题3选项
A.Opened up.
B.Cut down.
C.Kept on.
D.Sped up.
问题4选项
A.when they get older
B.when they become parents themselves
C.if their parents sleepwalked
D.if they don’t sleep well
问题5选项
A.a storybook
B.a travel book
C.a science book
D.a cooking book
第1题:A
第2题:B
第3题:B
第4题:C
第5题:C
第1题:
【原文考查】主旨大意题
【选项释义】这篇文章是关于__________。
A.梦游为什么会发生
B.梦游者去哪里
C.梦游者做什么
D.梦游者走路的时候
【解题思路】通读全文可知，本文主要讲述了梦游症产生的原因，高发年龄段，和遗传概率等。故本题选A。
第2题:
【原文考查】事实细节题
【选项释义】谁梦游的可能性更大？__________。
A.成年人
B.年轻人
C.老人
D.老妇人
【解题思路】根据原文第三段“Sleepwalking happens more often among young people than grown-ups because young people usually have more deep sleep. Up to 7% of 12-year-old sleepwalk, while only about 2% of grown-ups sleepwalk. We get less deep sleep as we are getting older and the possibility of sleepwalking is also reduced. ”可知，梦游在年轻人中比在成年人中更常见，因为年轻人通常睡眠更深。高达7%的12岁儿童会梦游，而只有大约2%的成年人会梦游。随着年龄的增长，我们的深度睡眠越来越少，梦游的可能性也降低了。故本题选B。
第3题:
【原文考查】词语理解题
【选项释义】在第三段中的“梦游的可能性也reduced了”的“reduced”是什么意思？
A.打开。
B.减少。
C.继续。
D.加速。
【解题思路】根据第三段中“We get less deep sleep as we are getting older and the possibility of sleepwalking is also reduced.”可知，文中的“also”提示我们“reduce”的意思和前面的“get less”相近，都表示减少的意思。故本题选B。
第4题:
【原文考查】事实细节题
【选项释义】__________人们患梦游症的可能性更大。
A.当他们长大时
B.当他们自己成为父母时
C.如果他们的父母梦游
D.如果他们睡不好
【解题思路】根据原文最后一段“Sleepwalking may run in families, too. If one of your parents was a sleepwalker you have about a 50% possibility of also being a sleepwalker. ”可知，梦游也可能在家族中传播。如果你的父母之一是梦游者，你也有50%的可能是梦游者。故本题选C。
第5题:
【原文考查】推理判断题
【选项释义】这篇文章可能来自__________。
A.一本故事书
B.一本旅游书
C.一本科普书
D.一本烹饪书
【解题思路】本文主要介绍了“梦游症”这一生理现象，属于科学范畴，且文章用词严谨客观，可推测出文章可能出自科普书籍。故本题选C。
