【正文】 Engineers and governments have been toying with the idea since at least 1925. But none of the suggested projects has mater。8．閱讀理解 故選B。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。 （4）考查推理判斷。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劑。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。故選A。 （2）考查細節(jié)理解?？梢酝茢啵趸伎梢苑乐沟厍蜃兊貌贿m合居住。 （1）考查推理判斷。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。Why city living makes trees die young.C.How urban trees can live longer.They can enjoy more shade from neighbors.D.They are more likely to access growth promoters.B.D.To check whether they were healthy.B.To know about their growth rates.It results from the widespread burning of fossil fuels.D.It is one of the side effects of greenhouses.B. 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.s diameter increases as it grows, just as a person39。 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. 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. 7．閱讀理解 performance ”可知，機器人目前還在華盛頓州立大學的智能屋里進行測試，故選B?？v觀全文可知，本文介紹了一款由美國華盛頓州立大學的科學家們研發(fā)的機器人。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。 performance…”可知，這臺機器人的表現(xiàn)還要經(jīng)過進一步的測，說明正在測試階段，故選B。 （2）考查推理判斷。 （1）考查細節(jié)理解。D.RAS, the first robot to make home smart.B.Uncertain.（4）What can be a suitable title for the text? A.C.Negative.s attitude toward the future of RAS? A.It can cook for owners on its own.（3）What39。Its function remains to be tested.C.It is the first robot used in daily life.D.Through objects.C. performance with a group of older adults to get a better idea of what prompts, video reminders and other preferences they have regarding the robot.（1）How does RAS serve elderly people? A. RAS is the first robot researchers have tried to incorporate into their smart home environment. They recently published a study in the journal Cognitive Systems Research that demonstrates how RAS could make life easier for older adults struggling to live independently. The Robot Activity Support System or RAS, uses sensors installed in a WSU smart home to determine where its residents are, what they are doing and when they need assistance with daily activities. It navigates (定位) through rooms and around obstacles to find people on its own, provides video instructions on how to do simple tasks and can even lead its owner to objects like their medication or a snack in the kitchen.RAS bines the convenience of a mobile robot with the activity detection technology of a WSU smart home to provide assistance in the moment, as the need for help is detected, said Bryan Minor, a postdoctoral researcher in the WSU School of Electrical Engineering and Computer Science.6．閱讀理解 故選B。這種降落方式的一個缺點是蝙蝠經(jīng)常用力降落，這可能會導致疼痛。 （4）考查推斷判斷。由此可知，此處的it指的是飛行的方向。 （3）考查代詞指代。 （2）考查推理判斷。綜上所述，可知，蝙蝠與鳥運動方式的不同是本文的主題。第二段用研究證明過去認為蝙蝠和鳥類在飛行運動方面沒有什么區(qū)別是錯誤的。 （1）考查主旨大意。Bats and birds land in different ways.【答案】 （1）D（2）C（3）C（4）B 【解析】【分析】本文是一篇議論文，作者用研究事實來證明蝙蝠在飛行及運動方式與鳥類完全不同。Bats can adjust speed before landing.B.Bats might hurt themselves when landing.D.the flying directionB.They hide in tree branches.（3）The word it (in 2nd paragraph) probably refers to ______. A.They sleep upside down.C.Ways in which bats move differently from birds.（2）Which of the following is a false assumption about bats that was recently corrected? A.Why scientists have difficulty observing bats.C. these will vary depending on the area where a bat species makes its home. For example, a cave bat, which regularly lives on a hard stone ceiling, is more careful about its landing preparation than a bat more accustomed to landing in leafy treetops.（1）Which of the following is the topic of the passage? A. In the past it was believed that, in terms of flying mechanics, there was little difference between bats and birds. This belief was based only on assumption, however, because for years nobody had actually studied in detail how bats move their wings. In recent years, though, researchers have discovered a number of interesting facts about bat flight. Bats are built differently from birds, and their wings are made up of both their front and hind limbs (肢體). This makes coordinating (協(xié)調(diào)) their limbs more difficult for bats and, as a result, they are not very good at flying over longer distances. However, they are much better at the ability to adjust themselves: a bat can quickly change its direction of flight or pletely reverse it, something a bird cannot easily do.5．犇犇Choose the one that fits best according to the information given in the passage you have just read. 故選A?？芍xD。 （3）考查細節(jié)理解。s protective system to lightadjusting glasses. When a person wears the glasses outside during the day, the lenses（鏡片）darken and lighten