题目

If you`ve ever taken a bus,you`ve probably found soescooc sleeping in the seat ncar-|||-you.Maybe this even happens to you.You might think you need more coffee, but it won`t-|||-belp much-|||-The astuna vibratioo振动)of buses and subways makes us feel sleepy, werding to-|||-a new story in Science Alert.-|||-Why? It`s all about the information going to your brais.On a bus,your senses give-|||-you contingous(持读的)and repeating information. Fo exmple,the air conditioner and-|||-eaging(引擎)create cootinuous whitth nolse.At the same time,you`re sitting still and the-|||-things arognd you don`t change. The wibrations of the engine are also contingous. Your-|||-beain has almogt no new information to deal with.-|||-The repeating imformation will make your brain coser a low-coergy state.The fact that-|||-you fall aslecp quickly when closing your eyes on a bus is because your brain gets used to-|||-all of it-|||-When you`re tired,it doesn`t take much to start nodding off. But we`ve found that-|||-as you drive,the geatle vibeations made by car wats can make you sleepy."said Slephen-|||-Robiason, a reseaccer from the RMIT University in Melbowree Aastalia-|||-Robinson`s team invited 15 wolunters to do a test. They were required to sit in a-|||-driving machine.And the researchen kept watching their HRV(心率变异度)一a well.-|||-know ni cadicatox(标志)of sleepiness Over the course of two 60 minute periods, wolumter-|||-were tested once with vibrations thd coce withoot. In the period with vibrations, their-|||-HRVs were much lower compared with the period without vibrations. During 15 minutes.-|||-rolumteers showed signs of sleepiness, During 30 minutes, that sleepiness was very casy to-|||-be neciced, increasing up until the end of the test.-|||-This line of rescarch can offer help in the development of the car indastry. Robinsoe-|||-betieved the resawch could belpful for improving road safety."We hope that future car-|||-seats can be beilt to fight against vibration and to make the sleepiness weaker, "he said.-|||-根据短文内容,选择最佳选项。-|||-66.Which is NOT the continuout informarioo on a bos according to Paragraph 3?-|||-A.The white noise of the eagine.-|||-B.The changing things around you-|||-C.The vibrarions of the engine.-|||-D.The white noise of the air cooditioner,-|||-67.If you don`t want to sleep on a bus, what should you do?-|||-A.Stand up and move your body.-|||-B.Take more coffee with you-|||-C.Stop talking and keep silent.-|||-D.Listen to the same song.-|||-68.What does the underlined word"It"in Paragraph 4 ref to(指的是)?-|||-A. A low-energy state-|||-B.The soisy environment-|||-C.The repeating informatioa-|||-D.Someone sleeping in the seat-|||-69.What can we learn from the test?-|||-A.With vibations,the volumeen` HRV increased up.-|||-B. (cm)^circ HRVs didn`t change during the whole test.-|||-C.The volursecens with low HRVs showed sigas of sleepiness.-|||-D.The researchers got the same result after the test with two periods.-|||-70.What`s the main idea of the passage?-|||-A.It sbows the way people usually sit on the bus.-|||-B.It describes a scientific test by Robinson`s team.-|||-C.It soggegs improving road safety to car industry.-|||-D.It explains what caases people`s sleepiness on buxes.

题目解答

答案

解析

本题主要考查对文章内容的理解，包括细节信息、推理判断、词义猜测以及主旨大意等方面的能力。解题时需要仔细阅读文章，根据题目要求在文中找到相关信息进行分析和判断。

  1. 第66题：
    • 本题考查对文章中关于公交车上持续信息的细节理解。
    • 文中提到“On a bus, your senses give you continuous and repeating information. For example, the air conditioner and engine create continuous white noise. At the same time, you're sitting still and the things around you don't change. The vibrations of the engine are also continuous.”，即公交车上空调和引擎产生的白噪音、引擎的振动以及周围不变的事物都是持续的信息。
    • 而选项B说的是周围变化的事物，与原文不符，所以答案选B。
  2. 第67题：
    • 本题考查根据文章内容进行推理判断的能力。
    • 文中指出“The natural vibration of buses and subways makes us feel sleepy”以及“On a bus, your senses give you continuous and repeating information”，说明公交车的自然振动和持续重复的信息会让人犯困，且提到喝咖啡效果不大。
    • 选项A“站起来并移动身体”可以打破这种规律和重复，避免犯困；选项B喝咖啡效果不佳；选项C“停止说话并保持沉默”会让周围更安静，可能会加重困意；选项D“听同一首歌”也是持续重复的信息，会让人更容易犯困。所以答案选A。
  3. 第68题：
    • 本题考查对文中代词指代内容的理解。
    • 根据前文“The repeating information will make your brain enter a low - energy state. The fact that you fall asleep quickly when closing your eyes on a bus is because your brain gets used to all of it”，可知重复性的信息会让大脑进入低能量状态，当大脑习惯了这些重复性信息就会很快入睡，所以这里的“it”指的是重复性的信息，答案选C。
  4. 第69题：
    • 本题考查对文章中实验结果的推理判断。
    • 文中提到“Over the course of two 60 - minute periods, volunteers were tested once with vibrations and once without. In the period with vibrations, their HRVs were much lower compared with the period without vibrations. During 15 minutes, volunteers showed signs of sleepiness. During 30 minutes, that sleepiness was very easy to be noticed, increasing up until the end of the test”。
    • 选项A中说有振动时志愿者的HRV值上升，与原文有振动时HRV值更低不符；选项B说整个测试过程中HRV值不变，也与原文不符；选项D说两次测试结果相同，原文是对比有振动和无振动的情况，并非两次测试结果相同。
    • 因为有振动时HRV值低，且振动时间越长睡意越明显，所以可以推测HRV值低的志愿者会表现出困倦的迹象，答案选C。
  5. 第70题：
    • 本题考查对文章主旨大意的把握。
    • 文章开篇指出公交车上人们容易犯困的现象，接着通过科学研究解释了这一现象的原因，最后提出对汽车行业改进的建议。
    • 选项A“展示人们通常在公交车上的坐姿”并非文章重点；选项B“描述罗宾逊团队的科学测试”只是文章的一部分内容，不是主要目的；选项C“建议汽车行业提高道路安全”是基于研究结果的一个建议，不是文章的核心内容。
    • 文章主要是在解释公交车上人们容易犯困的原因，所以答案选D。