题目内容
18.Until the early 1950s,most scientists thought the body and the brain rested during sleep.Then a scientist watched people sleep.He noticed that during periods of between 5and 30minutes,sleepers'eyes made rapid movements,as if they were watching something.He called these periods REM (Rapid Eye Movement) sleep.He called periods when sleepers'eyes did not move non-REM sleep.
Whenever the scientist woke people during REM sleep,they were having vivid dreams.Measurements (测量) showed that sleepers'pulses (脉搏) went up quickly during REM sleep.Their breathing,heartbeat,and the blood going to the brain also increased.Far from being a time of rest,REM sleep is a time when the body is hard at work.Scientists still don't know the reason for this.Some believe REM sleep helps the brain grow.Others think REM sleep is a time for the brain to empty the day's garbage.
One thing all the scientists agree on is that sleep is necessary.Without enough sleep,people make mistakes.Most car accidents happen during the early morning hours when people are sleepiest.
66.During REM sleep,a person's breathing and heartbeatC.
A.stop B.sleep C.increase D.stay the same
67.The underlined word"vivid"meansD
A.easier B.large C.empty D.clear anti lively
68.D tells what happens when people don't get enough sleep.
A.Paragraph 1 B.Paragraph 2 C.Paragraph 3 D.Paragraph 4
69.The main idea of this passage isB.
.that REM sleep can help the brain grow B.about the scientific research of REM sleep
C.about how to empty the day's garbage D.that our body is good at work when sleeping
70.We can know from the passage thatA.
A.enough sleep is very important to people B.young people can experience REM sleep
C.the speed of sleepers'pulses will slow down during the REM sleep
D.all scientists have the same opinion on REM slerp.
分析 文章大意:这是一篇科普知识类阅读,短文主要介绍了睡眠.它是一个睡眠的阶段,眼球在此阶段时会呈现不由自主的快速移动.它是全部睡眠阶段中最深的.另外科学家都同意的是,睡眠是必要的.没有足够的睡眠,人都会犯错误.
解答 66.答案:C.细节理解题.根据第三段第二行heir breathing,heartbeat,and the blood going to the brain also increased.他们的呼吸,心跳和进入大脑的血液也增加了.可知,在REM睡眠期间,ran的呼吸和心跳会增加,选C.
67.答案:D.词意猜测题.根据第三段第一句Whenever the scientist woke people during REM sleep,they were having vivid dreams每当科学家在REM睡眠中唤醒人们时,他们都在做着____梦.可知,vivid生动的.应该选活泼生动.答案是D.
68.答案:D.细节理解题.根据第四段Without enough sleep,people make mistakes.Most car accidents happen during the early morning hours when people are sleepiest.没有足够的睡眠,是人都会犯错误.大多数汽车事故发生在清晨时人是困乏的.可知,第四段告诉我们如果睡眠不足会发生什么.选D.
69.答案:B.主旨大意题.根据第二段第二行He noticed that during periods of between 5 and 30 minutes,sleepers'eyes made rapid movements,as if they were watching something.He called these periods REM (Rapid Eye Movement) sleep.他注意到,在5到30分钟的时间里,睡眠者的眼睛发出快速的动作,就像在看东西一样,他称这些时期为异相睡眠.可知,短文主要介绍关于异相睡眠的科学研究.选B.
70.答案:A.细节理解题.根据最后一段One thing all the scientists agree on is that sleep is necessary.Without enough sleep,people make mistakes.科学家们一致认为睡眠是必要的,没有足够的睡眠,人们会犯错误.可知,从短文中我们知道,充足的睡眠对人们很重要.选A.
点评 阅读题型,要注重句子与句子之间、段落与段落之间逻辑关系以及对篇章的整体理解.根据所给问题选择正确选项完成试题.
| A. | heavily heavy | B. | heavy heavily | C. | hardly hard | D. | hard hardly |
| A. | excited | B. | excite | C. | exciting | D. | excitement |