【文章內(nèi)容簡介】 ice to equal 20 feet of global sea level. Northwest Greenland might feel really remote, but what happens to that ice sheet is going to matter to everyone in every coastal city around the world, said Yarrow Axford, an associate professor in the team. One of the big uncertainties in climate science is how fast the Earth changes when it gets warmer. Geology gives us an opportunity to see what happened when the Earth was warmer than today, said Axford. People might be surprised to see how today39。s Greenland looked during the last two interglacial periods. During the Last Interglacial, global sea levels increased by 15 to 30 feet, largely due to thinning of Greenland and Antarctica39。s ice sheets. However, now researchers believe northern Greenland39。s ice sheet experienced stronger warming than previously thought, which could mean that Greenland is more responsible for that sealevel rise. Finding lake deposits older than about 10,000 years, however, has been historically very difficult in Greenland. To measure these ancient temperatures, researchers look to ice cores (冰核) and lake deposits. Since ice and lake deposits form by a gradual buildup on annual layers of snow or mud, these cores contain history of the past. By looking through the layers, researchers can obtain climate clues from centuries ago.（1）Why are the remains of flies mentioned in the first two paragraphs? serve as evidence that there is still life in the Northwest Greenland. were one of the many ancient lives that were left in the Greenland mud. are indicators that Greenland was much warmer than previously thought. help the researchers realize that there was once a warm period in the Arctic.（2）The new information about Greenland is important because______________. have no idea how to measure Greenland39。s warming speed can help researchers better predict Greenland39。s response to warming should be more sensitive to the changes in the ice in Greenland is uncertain how fast the Earth changes with manmade global warming（3）Which of the following can be inferred from the passage? is easier for today39。s scientists to find ancient lake deposits. are surprised at the landscape feature of Greenland today. measure the changing temperatures by directly examining mud. holds enough ice that might one day threaten life in coastal cities.（4）Which do you think is the best title of the passage? Used to Be Much Greener Once Experienced Warm Periods Cities Warned of Coming Disasters Greenland, A Perfect Destination【答案】 （1）C（2）B（3）D（4）A 【解析】【分析】本文是一篇說明文，介紹了在古代沉積物中發(fā)現(xiàn)的一條微小線索揭開了格陵蘭島過去和未來氣候的大秘密。就在廣闊的格陵蘭冰原的西北邊緣，研究人員發(fā)現(xiàn)了在最后一個(gè)冰河時(shí)代幸存下來的湖泥?，F(xiàn)在研究人員認(rèn)為，格陵蘭北部的冰蓋經(jīng)歷了比之前認(rèn)為的更強(qiáng)烈的變暖。 （1）考查推理判斷。根據(jù)第一段中的“The mud, and remains of mon flies in it, record two interglacial periods（間冰期）in northwest Greenland.”在格陵蘭島西北部，泥漿和常見蒼蠅的殘骸記錄了兩次間冰期；以及第二段中的“Although researchers have long known these two periods—the early Holocene and Last Interglacial—experienced warming in the Arctic, the mix of fly species shows that Greenland was even warmer than previously thought. ”盡管研究人員很早就知道這兩個(gè)時(shí)期——全新世早期和最后一次間冰期——在北極經(jīng)歷了變暖，但混合的蠅類表明格陵蘭島甚至比之前認(rèn)為的還要熱?？芍谇皟啥沃刑岬缴n蠅的殘骸是為了證明格陵蘭島的溫度比之前認(rèn)為的要高得多。故選C。 （2）考查細(xì)節(jié)理解。根據(jù)第三段中的“This new information could help researchers better measure Greenland39。s sensitivity to warming, by testing and improving models of climate and ice sheet behaviour. ”可知，這些新信息可以幫助研究人員更好地測量格陵蘭島對氣候變暖的敏感性。故選B。 （3）考查細(xì)節(jié)理解。根據(jù)第三段中的“After all, Greenland covers 80 per cent of the Arctic country and holds enough ice to equal 20 feet of global sea level. ‘Northwest Greenland might feel really remote, but what happens to that ice sheet is going to matter to everyone in every coastal city around the world,’” 可知，格陵蘭島覆蓋了這個(gè)北極國家的80%，擁有相當(dāng)于全球海平面20英尺的冰?！案窳晏m西北部可能真的感覺很遙遠(yuǎn)，但冰蓋的變化將關(guān)系到世界上每個(gè)沿海城市的每個(gè)人?！惫蔬xD。 （4）考查主旨大意。本文通過最新的發(fā)現(xiàn)——最后一個(gè)冰河時(shí)代幸存下來的湖泥及湖泥中的蒼蠅殘骸及其相關(guān)研究說明格陵蘭島之前可能更暖和。因此，本文的最佳標(biāo)題應(yīng)為“格陵蘭島曾經(jīng)更加綠色”。故選A。 【點(diǎn)評】本題考點(diǎn)涉及細(xì)節(jié)理解，推理判斷和主旨大意三個(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，概括歸納，從而選出正確答案。5．閱讀理解 Delhi has been the centre of a succession of mighty empires and powerful kingdoms in India. Numerous ruins scattered throughout the territory offer a constant reminder of the area39。s history, which makes the city always be a fascinating place for tourists. With the development of the city and more and more people moving, the city has expanded several times in size. That is why it is called New Delhi. New Delhi, a city with a population of over 20 million people, has its newest problem: never before has this city met with the worst air problem. Air pollution in Indians capital surged to its worst levels in years, covering the city in a thick smog that has bee an annual publichealth emergency despite government vows to solve the problem. Hundreds of flights were diverted, delayed and canceled over the weekend due to poor visibility, schools and offices were closed Monday and officials rushed to take emergency measures to try to reverse the eroding air quality. Millions of antipollution masks were distributed at schools, colleges, hospitals and markets. New Delhi, is engulfed each year as the weather cools and a thick haze builds up from the pollutants emitted from cars and coalbased power plants, swirling dust from construction sites and roads and smoke from crop stubble burning in neighboring states. Fireworks and firecrackers to celebrate the Hindu festival of Diwali then arrives, leaving Delhi the world39。s most polluted city. The city39。s air quality index, which measures a mix of dangerous pollutants, registered an average score of 494 Sunday. That is the highest 24hour average since Nov. 6, 2016, when it hit 497, according to data measured by the Central Pollution Control Board.（1）Which of the following is NOT true? is one of the most important festivals in India. government did little to protect its citizens against the serious pollution. a serious air pollution in New Delhi appears on a regular basis. index of the recent air pollution is not the worst in the history.（2）Who may not plain about the serious air pollution? parents whose children have to stay at home. pilots whose planes have been diverted or delayed. manufacturers who produce antip