【正文】 lies might not be deep thinkers, but they can make good decisions very quickly. In parison, the tiger beetle(虎甲蟲)runs faster than its eyes can keep up, basically being blind, which requires it to stop periodically to reevaluate its prey39。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 Healy39。s ment mean in ？ 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 being blind.C.Stop occasionally to spot the prey again.D.Try to run as fast as it can.【答案】 （1）D（2）A（3）B（4）C 【解析】【分析】本文是一篇說明文，介紹了對(duì)動(dòng)物時(shí)間感知的研究。 （1）考查細(xì)節(jié)理解。根據(jù)第一段中的“According to a team of researchers，an animal39。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，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，故選D。 （2）考查推理判斷。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說的意思是快速移動(dòng)的動(dòng)物的生存依賴于它們對(duì)時(shí)間的感知能力，故選A。 （3）考查細(xì)節(jié)理解。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，家蠅觀察物體運(yùn)動(dòng)的時(shí)間比我們?nèi)搜鬯苓_(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，也就是說它們可以盡快處理收到的信息，故選B。 （4）考查細(xì)節(jié)理解。根據(jù)倒數(shù)第二段中的“the tiger beetle（虎甲蟲）runs faster than its eyes can keep up，basically being blind，which requires it to stop periodically to reevaluate its prey39。s（獵物）position”可知，虎甲蟲的移動(dòng)比眼睛快，基本上是盲目的，這就要求它不時(shí)地停下來，重新評(píng)估獵物的位置，由此可知，為了抓住移動(dòng)的獵物，虎甲蟲需要不時(shí)地停下來確定獵物的位置，故選C。 【點(diǎn)評(píng)】本題考點(diǎn)涉及細(xì)節(jié)理解和推理判斷兩個(gè)題型的考查，是一篇科研類閱讀，考生需要準(zhǔn)確捕捉細(xì)節(jié)信息，并根據(jù)上下文進(jìn)行邏輯推理，從而選出正確答案。8．閱讀理解 City trees grow faster and die younger than trees in rural forestry, a new study finds. Over their lifetimes, then, urban trees will likely absorb less CO2 from the air than forest trees. As we all know, the earth would be freezing or burning hot without CO2. However, CO2 is a greenhouse gas, meaning it traps energy from the sun as/heat. That makes temperatures near the ground rise. Human activities, especially the widespread burningof fossil(化石)fuels, have been sending extra greenhouse gases into the air. This has led to a rise in average temperatures across the globe. Studies had shown forests readily absorb CO2, but there hadn39。t been much data on whether city trees grow, die and absorb CO2 at the same rate as forest trees do. So some researchers decided to find out. To figure out how quickly trees were growing, researchers tracked their diameters (the width of their trunks) between 2005 and 2014. A tree39。s diameter increases as it grows, just as a person39。s waist size increases as they gain weight. About half the weight of a tree is carbon, research has shown. Most of the rest is water. Over the nine years39。 tracking, the researchers found city trees absorbed four times as much carbon from the air as forest trees. However, they were twice as likely to die. So over the lifetime of each type of tree, forest trees actually absorbed more CO2. City trees grew faster because they had less petition for light from their neighbors. In a forest，trees tend to grow close together，shading their neighbors. Street trees also benefit from higher levels of nitrogen (氮)in rainwater. Nitrogen helps plants grow. Waste gases from gasburning cars also contain nitrogen, thus enriching city air with nitrogen. Later, rainwater may wash much of it to the ground. Some street trees may also have better access to water than trees in the country because the underground water pipes can leak.（1）What can he known about CO2 from paragraph 2? A.It is one of the side effects of greenhouses.B.It greatly accelerates the process of global warming.C.It results from the widespread burning of fossil fuels.D.It prevents the earth from being unsuitable to live on.（2）Why did researchers track the diameters of trees? A.To know about their growth rates.B.To find out how much they weigh.C.To check whether they were healthy.D.To assess the carbon amounts in them.（3）What advantage do city trees have over forest trees? A.They are more likely to access growth promoters.B.They can enjoy more water ing from the air.C.They can enjoy more shade from neighbors.D.They are better at peting for light.（4）What will probably be talked about if the passage is continued? A.How urban trees can live longer.B.Why city living makes trees die young.C.How trees respond to dry soil conditions.D.Why fastergrowing trees absorb more C02.【答案】 （1）D（2）A（3）A（4）B 【解析】【分析】本文是一篇說明文。一項(xiàng)新的研究發(fā)現(xiàn)：與長在森林中的樹木相比，城市里的樹木長得更快，但死得更早。 （1）