Question

【題目】 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（虎甲蟲(chóng)）runs faster than its eyes can keep up，basically becoming blind，which requires it to stop periodically to re-evaluate its prey's（獵物）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】

本文是一篇說(shuō)明文，介紹了對(duì)動(dòng)物時(shí)間感知的研究。

【1】細(xì)節(jié)理解題。根據(jù)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，據(jù)一組研究人員稱(chēng)，動(dòng)物感知時(shí)間的能力與它們的生活節(jié)奏有關(guān)，由此可知，文中提到的這個(gè)研究是關(guān)于動(dòng)物的時(shí)間感知的，故D項(xiàng)正確。

【2】推理判斷題。根據(jù)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，對(duì)于能快速移動(dòng)的動(dòng)物而言，在極短的時(shí)間內(nèi)感知時(shí)間的能力可能是生與死的區(qū)別，由此可知，Kevin Healy說(shuō)的意思是快速移動(dòng)的動(dòng)物的生存依賴(lài)于它們對(duì)時(shí)間的感知能力，故A項(xiàng)正確。

【3】細(xì)節(jié)理解題。根據(jù)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，家蠅觀(guān)察物體運(yùn)動(dòng)的時(shí)間比我們?nèi)搜鬯�能達(dá)到的時(shí)間要短，這使得它們能夠避免被擊中，再結(jié)合第五段中的“but they can make good decisions very quickly.”可知，它們可以很快做出好的決定，也就是說(shuō)它們可以盡快處理收到的信息，故B項(xiàng)正確。

【4】細(xì)節(jié)理解題。根據(jù)倒數(shù)第二段中的“the tiger beetle（虎甲蟲(chóng)）runs faster than its eyes can keep up，basically becoming blind，which requires it to stop periodically to re-evaluate its prey's（獵物）position”可知，虎甲蟲(chóng)的移動(dòng)比眼睛快，基本上是盲目的，這就要求它不時(shí)地停下來(lái)，重新評(píng)估獵物的位置，由此可知，為了抓住移動(dòng)的獵物，虎甲蟲(chóng)需要不時(shí)地停下來(lái)確定獵物的位置，故C項(xiàng)正確。