【正文】 own.（3）What39。s Minor39。s attitude toward the future of RAS? A.Doubtful.B.Negative.C.Optimistic.D.Uncertain.（4）What can be a suitable title for the text? A.Elderly people leave the nursing home.B.Smart Home Tests first elderCare robot.C.RAS, the first robot to make home smart.D.Older adults have benefited from RAS.【答案】 （1）A（2）B（3）C（4）B 【解析】【分析】本文是一篇說明文，介紹了一款由美國華盛頓州立大學(xué)的科學(xué)家們研發(fā)的機器人，可以幫助那些癡呆或有身體缺陷的老年人在家里過上自立的生活。 （1）考查細(xì)節(jié)理解。根據(jù)章第二段中的“ The Robot Activity Support System, or RAS, uses sensors （傳感器）equipped in a WSU smart home to determine where its residents are, what they are doing and when they need assistance with daily activities”可知機器人活動支持系統(tǒng)（RAS）使用WSU智能家居中配備的傳感器（傳感器）來確定其居民在哪里，他們在做什么以及何時需要日?；顒拥膸椭f明傳感器起到了重大的作用，故選A。 （2）考查推理判斷。根據(jù)最后一段中的“The next step in the research will be to test RAS39。 performance…”可知，這臺機器人的表現(xiàn)還要經(jīng)過進(jìn)一步的測，說明正在測試階段，故選B。 （3）考查推理判斷。根據(jù)最后一段中的“ While we are still in an early stage of development, our initial results with RAS have been promising”可知，Minor對這款機器人的未來發(fā)展充滿信心、非常樂觀，故選C。 （4）考查主旨大意。縱觀全文可知，本文介紹了一款由美國華盛頓州立大學(xué)的科學(xué)家們研發(fā)的機器人。再根據(jù)最后一段中的“The next step in the research will be to test RAS39。 performance ”可知，機器人目前還在華盛頓州立大學(xué)的智能屋里進(jìn)行測試，故選B。 【點評】本題考點涉及細(xì)節(jié)理解，推理判斷和主旨大意三個題型的考查，是一篇科技類閱讀，考生需要準(zhǔn)確捕捉細(xì)節(jié)信息，同時根據(jù)上下文進(jìn)行邏輯推理，概括歸納，從而選出正確答案。7．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）考查推理判斷。根據(jù)第二段中的“the earth would be freezing or burning hot without CO2.”可知，如果沒有二氧化碳，地球?qū)O冷或極熱。可以推斷，二氧化碳可以防止地球變得不適合居住。故選D。 （2）考查細(xì)節(jié)理解。根據(jù)第四段中的“To figure on how quickly trees were growing, researchers tracked their diameters.”可知，研究人員監(jiān)測樹木的直徑是為了了解樹木的生長速度。故選A。 （3）考查細(xì)節(jié)理解。根據(jù)最后一段中的“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.”可知，與生長在森林中的樹木相比，城市里的樹木長得更快是因為它們無需與鄰近的樹木爭奪光照，也能得到更多的氮量，還更容易得到水。光、氮和水都可以促進(jìn)樹木的生長。由此可以推斷，城市里的樹木比森林中的樹木更可能獲得生長促進(jìn)劑。故選A。 （4）考查推理判斷。首句就提到了一項新的研究結(jié)果：城市里的樹木比森林中的樹木長得更快，但死得更早；文章第三段說到“以前有研究表明森林會吸收二氧化碳，但是城市里的樹木的生長、死亡和吸收二氧化碳的速度是否跟森林中的樹木一樣，這方面的數(shù)據(jù)不多。因此一些研究人員決定弄清楚”；文章第四段再次介紹了他們的研究發(fā)現(xiàn)：城市里的樹木比森林中的樹木長得更快，但死得更早；文章最后一段介紹了城市里的樹木比森林中的樹木生長得更快的幾個原因。由此可以推斷，文章接下來很可能就要介紹城市里的樹木死得更早的原因。故選B。 【點評】本題考點涉及細(xì)節(jié)理解和推理判斷兩個題型的考查，是一篇科研類閱讀，考生需要準(zhǔn)確掌握細(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 Compared with solar and wind energy, which are booming, tidal (潮汐的) power is a loser in the clean energy petition. But if you did want to build a tidal power station, there are few better sites than the mouth of the River Severn, in Britain. Its tidal range, the difference in depth between high and low tides, of around 15 metres is among the largest in the world. Engineers and governments have been toying with the idea since at least 1925. But none of the suggested projects has mat