Question

【題目】 Have you ever had trouble sleeping in a new place?

Lots of people do. And now researchers from Brown University in Rhode Island think they know why. 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.

This appears a case of the brain keeping people ready for trouble in a new place, the researchers said.

The sleep findings were reported in Current Biology by Brown University. In their report, the researchers said many people report they have a harder time sleeping the first night at a hotel or other places outside their home. They call it “first-night influence”. “In Japan they say, ‘If you change your pillow, you can’t sleep,’” said Yuka Sasaki, one of the report’s writers, “You don’t sleep very well in a new place. We all know about it.”

The researchers measured brain waves(測量腦波) for 35 volunteers over two nights in a laboratory. The two nights were a week apart. They found during the first night the left half of the brain was more active than the right half. This was during the first deep-sleep period, the researchers said.

Sasaki said a lot of questions remain.

Researchers did not keep measuring brain waves all night long. So, they don’t know if the left half keeps “watch” all night. Or whether it “works in shifts” with the right half later in the night. They also don’t know why the brain activity, at least during the first period of deep sleep, is always on the left half.

For some, this research may be calming. It is good to know that our brain is “l(fā)ooking out for us” in a new place. But it may not help with sleep. That brain activity, at least according to this new research, makes it harder to get the sleep people need to wake up well rested in the morning.

【1】What did the research find during the first deep-sleep period?

A.They found the brain wave remained the same.

B.They found the brain activity helped with sleep.

C.They found the right half of the brain kept “watch”.

D.They found the left half of the brain was more active.

【2】Which of the following is one of the questions that remain?

A.Whether the new bed keeps you from sleeping.

B.How you have trouble sleeping in a new place.

C.Why the brain activity is always on the left half.

D.What people can do when they can’t sleep well.

【3】The underlined word “calming” has the closest meaning to ______.

A.pleasingB.differentC.seriousD.strange

【4】What does the underlined word “it” in Paragraph 7 refer to?

A.The brain wave.

B.The brain activity.

C.The whole brain.

D.The left half of the brain.

Answer 1

【答案】

【1】D

【2】C

【3】A

【4】D

【解析】

本文是一篇說明文，介紹了針對有些人在新地方的第一夜通常睡不好覺這個現(xiàn)象，研究員們進(jìn)行了實(shí)驗(yàn)研究，發(fā)現(xiàn)在新地方睡覺的第一夜，左半邊大腦在深睡眠的第一階段仍然保持著活躍狀態(tài)，主要是為了應(yīng)對新環(huán)境可能會帶來的麻煩。

【1】細(xì)節(jié)理解題。根據(jù)They found during the first night the left half of the brain was more active than the right half，可知實(shí)驗(yàn)發(fā)現(xiàn)在此階段，左半邊大腦比右半邊更活躍，故選D。

【2】細(xì)節(jié)理解題。根據(jù)They also don’t know why the brain activity, at least during the first period of deep sleep, is always on the left half，可知還未解決的問題是大家不知道為什么保持活躍狀態(tài)的總是左腦。

【3】詞義猜測題。根據(jù)劃線詞所在句的句意“對于一些人來說，這個研究可能是_______ 的”，以及后文提到“知道我們的大腦在新環(huán)境下仍然在看護(hù)著我們是很好的”可知橫線處是一個褒義詞；A. pleasing令人高興的；B. different不同的；C. serious嚴(yán)重的；D. strange奇怪的；故選A。

【4】詞義猜測題。根據(jù)劃線詞所在句的句意“或者它是否是和右腦輪流在夜間值班”，以及前文說到“他們不知道左腦是否整夜一直保持活躍狀態(tài)”，可知此處的“它”指的是前文提到的“左腦”，故選D。