Question

【题目】 According to a team of researchers，an animal's ability to perceive（感知）time is linked to their pace of life.

“Our results lend support to the importance of time perception in animals where the ability to perceive time in a very short time may be the difference between life and death for fast moving creatures." commented lead author Kevin Healy from Trinity College Dublin.

The study was done with a variety of animals using phenomenon based on the maximum speed of flashes of light an individual can see before the light source is seen as constant. Dogs，for example，have eyes with a refresh rate higher than humans.

One example of this phenomenon at work，the authors say，is the housefly and its ability to avoid being hit. The research showed flies “observe motion in a shorter time than our own eyes can achieve，"which allows them to avoid being hit.

Professor Graeme Ruxton of the University of St Andrews in Scotland，who worked jointly on the research project，said in a statement，“Having eyes that send updates to the brain at much higher frequencies than our eyes do is of no value if the brain cannot process that information equally quickly. Thus，this work highlights the impressive abilities of even the smallest animal brains. Flies might not be deep thinkers，but they can make good decisions very quickly. ”

In comparison，the tiger beetle（虎甲虫）runs faster than its eyes can keep up，basically becoming blind，which requires it to stop periodically to re-evaluate its prey's（猎物）position.

Our results suggest that time perception offers an as yet unstudied dimension along which animals can specialize and there is considerable range to study this system in more detail.

【1】What is the research mentioned in the passage mainly about？

A.Pace of life of animals.B.Impressive abilities of animals.

C.Lifetime of small animals.D.Time perception of animals.

【2】What does Kevin Healy's comment mean in Para.2？

A.The survival of fast moving animals relies on their ability to perceive time.

B.Animals with quicker pace of life have better perception of time.

C.The ability of animals to perceive time depends on their high moving speed.

D.Animals with poor ability of time perception have a shorter life.

【3】Why can houseflies avoid being hit？

A.They can think very deeply before they act.

B.They can process the information as quickly as they receive it.

C.They can fly much faster than their eyes can keep up.

D.They can send information to brain more quickly than to their eyes.

【4】What will a tiger beetle have to do to catch a moving prey？

A.Slow down to gain its time perception.

B.Prevent itself from becoming blind.

C.Stop occasionally to spot the prey again.

D.Try to run as fast as it can.

Answer 1

【答案】

【1】D

【2】A

【3】B

【4】C

【解析】

本文是一篇说明文，介绍了对动物时间感知的研究。

【1】细节理解题。根据第一段“According to a team of researchers，an animal's ability to perceive（感知）time is linked to their pace of life.”可知，据一组研究人员称，动物感知时间的能力与它们的生活节奏有关，由此可知，文中提到的这个研究是关于动物的时间感知的，故D项正确。

【2】推理判断题。根据第二段中的“the importance of time perception in animals where the ability to perceive time in a very short time may be the difference between life and death for fast moving creatures.”可知，对于能快速移动的动物而言，在极短的时间内感知时间的能力可能是生与死的区别，由此可知，Kevin Healy说的意思是快速移动的动物的生存依赖于它们对时间的感知能力，故A项正确。

【3】细节理解题。根据第四段中的“The research showed flies “observe motion in a shorter time than our own eyes can achieve，"which allows them to avoid being hit.”可知，家蝇观察物体运动的时间比我们人眼所能达到的时间要短，这使得它们能够避免被击中，再结合第五段中的“but they can make good decisions very quickly.”可知，它们可以很快做出好的决定，也就是说它们可以尽快处理收到的信息，故B项正确。

【4】细节理解题。根据倒数第二段中的“the tiger beetle（虎甲虫）runs faster than its eyes can keep up，basically becoming blind，which requires it to stop periodically to re-evaluate its prey's（猎物）position”可知，虎甲虫的移动比眼睛快，基本上是盲目的，这就要求它不时地停下来，重新评估猎物的位置，由此可知，为了抓住移动的猎物，虎甲虫需要不时地停下来确定猎物的位置，故C项正确。