英语阅读理解(科普环保)提高训练含解析

英语阅读理解(科普环保)提高训练含解析

一、高中英语阅读理解科普环保类

1．犇犇阅读下列短文，从每题所给的A、B、C和D四个选项中，选出最佳选项。

Why does time seem to fly by faster as we get old? You've got your aging brain to blame. This is likely due largely to the physical changes of our nerves and neurons (神经元). New research suggests 'rapid fire' abilities of the young brain allow us to process more information during youth, causing the days to seem longer earlier in life. However, as we get old, researchers say the older brain takes more time to process information.

The new finding put forward by a Duke University researcher was published in a paper in the journal European Review this week According to Adrian Bejan, the J. A Jones Professor of Mechanical Engineering at Duke, the physical changes of our nerves and neurons play, a major role in our perception (知觉) of time as we get old. Over the years these structures become more complex and eventually begin to degrade.

"Little babies, for example, move their eyes much more often than adults because they're processing images at a faster rate," Beian says, For older people, this means fewer images are being processed in the same amount of time, causing experiences to seem as though they're happening more quickly.

（1）What causes time to fly faster as we get old?

A. Changes of our nerves and neurons.

B. Information in our brain.

C. The electrical signals.

D. Rapid fire abilities.

（2）What is unavoidable in the process of getting old?

A. Longer days.

B. Aging brains.

C. More images.

D. Less experience.（3）Why do the days seem longer earlier in life?

A. Young people are more energetic in their life.

B. The younger brain takes less time to process information.

C. Old people have fewer things to do than young people.

D. Little babies move their eyes much more often.

（4）What is the best title of the text?

A. Nerves and Neurons

B. Time Flies Fast

C. The Older, the Faster

D. The Function of the Brain

【答案】（1）A

（2）B

（3）B

（4）C

【解析】【分析】本文是一篇说明文，介绍了为什么老年人会觉得时间过得较快，主要原因是随着年龄的增长，大脑中神经元的变化让老年人的大脑需要更多的时间来处理接收到

的信息，这样就会让他们觉得时间过得较快。

（1）考查细节理解。根据第一段中的 "This is likely due largely to the physical changes of our nerves and neurons (神经元)."可知，老年人觉得时间过得过快的原因是神经和神经元的变化。故选A。

（2）考查推理判断。根据第一段中的"You've got your aging brain to blame."和第二段中的"Over the years, these structures become more complex and eventually begin to degrade."可知，随着年龄的增长，不可避免的就是大脑结构的老化。故选B。

（3）考查推理判断。根据第一段中的最后两句可知，年轻时之所以觉得日子似乎更长是因为大脑能够以“快速射击”的方式处理更多信息。当我们变老的时候，大脑需要更多的时间来处理信息。所以说，相较于老年人，年轻人的大脑花费更少的时间来处理信息。故选B。

（4）考查主旨大意。文章首句点明了文章谈论中心：为什么随着我们变老，我们会觉得时间过得更快？后面文章主要解释了原因：老年人因为大脑退化，神经元的变化导致他们觉得时间过得较快。C项正好与主旨句呼应，故选C。

【点评】本题考点涉及细节理解，推理判断和主旨大意三个题型的考查，是一篇科研类阅读，考生需要准确捕捉细节信息，同时根据上下文进行逻辑推理，概括归纳，从而选出正确答案。

2．犇犇阅读理解

A study found wireless signals are able to pass through bags and suitcases to judge the sizes of dangerous metal objects and identify them." These items could include weapons, chemicals, laptops and batteries for bombs, "the research team said on Tuesday.

Research suggested that Wi-Fi can now be used to estimate the volume of liquids such as water, acid, alcohol and other chemicals for explosive material. The study led by researchers at the Wireless Information Network Laboratory (WINLAB) in the School. of Engineering showed a wireless device with two to three antennas(天线)that could be fitted in existing Wi-Fi networks. The detection system analyzes what happens when wireless signals go through and bounce off objects or materials. The approach, which the paper states, works by separating the wireless interference(干扰)caused by two factors of objects-the material and shape." Most dangerous objects such as weapons are usually metal or liquid, which have significant interference," researchers said.

When it was tested on a backpack, the accuracy rate topped 95 percent. "But the accuracy dropped to about 90 percent when objects inside bags are wrapped. And the tech could save lives if used in museums, stadiums, theme parks or schools," the team said, noting its design can inspect bags or luggage without being an exposure to privacy.

It uses channel state information (CSI) that is readily available in low-cost Wi-Fi devices." This could have a great impact on protecting the public from dangerous objects," said Yingying Chen, a co-author of the study," There's a growing need for that now. In large public areas, it's hard to set up expensive screening equipment like what's in airports. Manpower is always needed to check bags and we want to develop a method to try to reduce manpower.”