Question 1: What is First Night Effect? Question 2: What can be said of the left hemisphere as compared to the right one during the first deep sleep period at the first night? Question 3: Which question remains unanswered as mentioned in the passage?
问题1选项
A.Having difficulty sleeping alone.
B.Sleep trouble at home.
C.Sleep difficulty in a hotel.
D.Sleep difficulty in a new place.
问题2选项
A.The left hemisphere was less active.
B.The left hemisphere was more active.
C.The left hemisphere worked the same as the right.
D.The left hemisphere worked alone.
问题3选项
A.Whether the right hemisphere works in the night.
B.How the brain looks out for us in a new place.
C.Whether the left hemisphere works in shifts with the right in the night.
D.Why people have the First Night Effect.
Have you ever had trouble sleeping the first night at a hotel or other places outside your home? Lots of people do. This is called First Night Effect, and now researchers began to show interest in it. They found that one half of the brain remains more awake than the other half when people are trying to sleep in a new place. The researchers measured brainwaves for 35 volunteers over two nights in a laboratory. They found during the first night the left hemisphere of the brain was more active than the right hemisphere during the first deep sleep period. Researchers did not keep measuring brainwaves all night long, so they don’t know if the left hemisphere keeps watch all night or whether it works in shifts with the right hemisphere later in the night. But at least it is good for us to know that our brain is looking out for us in a new place.
Question 1: 题干为：什么是第一夜效应？由Have you ever had trouble sleeping the first night at a hotel or other places outside your home? Lots of people do. This is called First Night Effect（你是否曾经在酒店或其他地方的第一天晚上难以入睡？很多人都是这样。这被称为第一夜效应）可知，第一次夜晚效应是指人们在新地方睡觉时出现的困难。因此D选项Sleep difficulty in a new place.（在新地方入睡困难。）正确。
第2题:
Question 2: 题干为：第一次深度睡眠期间，左脑与右脑相比如何？由The left hemisphere of the brain was more active than the right hemisphere during the first deep sleep period.（在第一次深度睡眠期间，大脑的左脑比右脑更活跃。）可知，左脑在此时更活跃。因此B选项The left hemisphere was more active.（左脑活跃度较高。）正确。
第3题:
Question 3: 题干为：文中提到未回答的问题是哪一项？由Researchers did not keep measuring brainwaves all night long, so they don’t know if the left hemisphere keeps watch all night or whether it works in shifts with the right hemisphere later in the night.（研究人员没有整晚测量脑电波，所以他们不知道左脑是否整晚保持警觉，或者是否与右脑轮流工作。）可知，文章未回答的是左脑是否与右脑轮流工作。因此C选项Whether the left hemisphere works in shifts with the right in the night.（左脑是否与右脑轮流工作。）正确。
