1、四川省绵阳中学2015一轮英语阅读理解练习（2）及答案（精品）阅读下列四篇短文，从每小题后所给的A,B,C或D四个选项中，选出最佳选项。Rivers may be a significant source of the greenhouse gas nitrous oxide (一氧化二氮), scientists now find. Their calculation suggests that across the globe the waterways contribute three times the amount of nitrous oxide to the atmosphere
2、 as had been estimated by the International Panel on Climate Change (IPCC), the United Nations scientific body charged with reviewing climate change research. They found that the amount of nitrous oxide produced in streams is related to human activities that release nitrogen (氮) into the environment
3、, such as fertilizer use and sewage discharges. “Human activities, including fossil fuel combustion and intensive agriculture, have increased the availability of nitrogen in the environment,” said Jake Beaulieu of the University of Notre Dame and the U.S. Environmental Protection Agency in Cincinnat
4、i, Ohio, and lead author of the paper published this week in the journal Proceedings of the National Academy of Sciences. “Much of this nitrogen is transported into river and stream networks,” Beaulieu said. There, microbes (微生物) convert the nitrogen into nitrous oxide (also called laughing gas) and
5、 an inert gas called dinitrogen (二氮). The finding is important, the researchers say, because nitrous oxide is a powerful greenhouse gas that contributes to climate change and destruction of the stratospheres ozone layer, which protects us from the suns harmful ultraviolet (紫外线) radiation. Compared w
6、ith carbon dioxide, nitrous oxide is 300-fold more powerful in terms of its warming potential, though carbon dioxide is a far more common greenhouse gas. Scientists estimate nitrous oxide accounts for about 6 percent of human-induced climate change. Beaulieu and colleagues measured nitrous oxide pro
7、duction rates in 72 streams. When summed across the globe, the results showed rivers and streams are the source of at least 10 percent of human-caused nitrous oxide emissions to the atmosphere. “Changes in agricultural and land-use practices that result in less nitrogen being delivered to streams wo
8、uld reduce nitrous oxide emissions from river networks,” Beaulieu said.1. From the second paragraph we can learn. A. actually rivers give off much more nitrous oxide than expectedB. scientists calculation is totally wrongC. human activities release nitrous oxide in to the riversD. there is no nitrog
9、en in fertilizer2. Which of the following is NOT the source of nitrogen? A. Fertilizer use. B. Sewage discharges. C. Fossil fuel combustion. D. Climate change. 3. Nitrous oxide is a powerful greenhouse gas because. A. it can protect us from the suns harmful ultraviolet radiationB. it is to blame for
10、 most of human-induced climate changeC. it is a far more common greenhouse gasD. it has much more warming potential than carbon dioxide4. What does the passage mainly tells us? A. Rivers may be a source of the greenhouse gas nitrous oxide. B. Its human activities that release nitrogen into the envir
11、onment. C. How to reduce nitrous oxide emissions from river networksD What to do with the climate change caused by nitrous oxide. 【参考答案】14、ADDA 较难题目特训：节能环保类 阅读下列四篇短文，从每小题后所给的A,B,C或D四个选项中，选出最佳选项。The Maldives faces the threat of extinction from rising sea levels, but the government said on Thursday it
12、 was looking to the future with plans to build homes and a golf course that float. An increase in sea levels of just 18 to 59 centimeters would make the Maldivesa nation of tiny coral islands in the Indian Oceanvirtually uninhabitable by 2100, the UNs climate change panel has warned. President Moham
13、ed Nasheed has vowed a fight for survival, and last month he signed a deal with a Dutch company to study proposals for a floating structure that could support a conference centre, homes and an 18-hole golf course. “It is still early stages and we are awaiting a report on the practicality,” a governm
14、ent official who declined to be named said. The company, Dutch Docklands, is currently building floating developments in the Netherlands and Dubai. There was no immediate comment from the firm but its website said it undertook projects that make “land from water by providing large-scale floating con
15、structions to create similar conditions as on land”. The Maldives began to work on an artificial island known as the Hulhumale near the crowded capital island of Male in 1997 and more than 30,000 people have been settled there to ease congestion. The city, which has a population of 100,000, is alrea
16、dy protected from rising sea levels by a 30-million-dollar sea wall, and the government is considering increasingly imaginative ways to combat climate change. Nasheed, who staged the worlds first underwater cabinet meeting in October to highlight his peoples serious and difficult situation, has even
17、 spoken of buying land elsewhere in the world to enable Maldivians to relocate if their homes are completed covered. He has also promised to turn his nation into a model for the rest of the world by becoming “carbon neutral” by 2020. His plan involves ending fossil fuel use and powering all vehicles
18、 and buildings from “green” sources such as burning coconut husks. 1. Why do you think Mohamed Nasheed chose Dutch Docklands? A. Because it has experience in building floating structure. B. Because it has a good fame throughout the world. C. Because it charged much less than other companies. D. Beca
19、use it supports building floating structures in the world. 2. The Hulhumale was built with the purpose of. A. attracting more visitors B. making it a new capitalC. making the capital less crowded D. fighting against climate change3. According to the last two paragraphs, Nasheed is a person who. A. h
20、as succeeded in buying land abroad B. is more than well-knownC. has thought more for his nation D. has stopped using fossil fuel4. The underlined word “vowed” in paragraph 3 can be replaced by. A. ended B. promised C. failed D. weighed【参考答案】14、ACCB 较难题目特训：节能环保类 阅读下列四篇短文，从每小题后所给的A,B,C或D四个选项中，选出最佳选项。P
21、LAYA GRANDE, COSTA RICA? This resort town was long known for Leatherback Sea Turtle (棱皮龟) national Park, nightly turtle beach tours and even a sea turtle museum. However, on a beach where dozens of turtles used to nest on a given night, scientists spied only 32 leatherbacks all of last year. With le
22、atherbacks threatened with extinction (灭绝), Playa Grandes turtle museum was abandoned three years ago and now sits among a sea of weeds. And the beachside ticket office for turtle tours was washed away by a high tide in September. “We do not promote that as a turtle tourism destination any more beca
23、use we realize there are far too few turtles to please,” said Alvaro Fonseca, a park ranger (管理员). Even before scientists found temperatures going up over the past decade, sea turtles were threatened by beach development, drift net fishing and Costa Ricans interest in eating turtle eggs. But climate
24、 change may cause the most serious harm to an animal that has lived in the Pacific for 150 million years. Sea turtles are sensitive to numerous effects of warming. They feed on reefs, which are dying in hotter seas. They lay eggs on beaches that are being covered by rising seas and more violent wave
25、s. More uniquely their gender (性别) is determined, not by genes but by the eggs temperature during development. Small rises in beach temperatures can result in ail-female populations, obviously problematic for survival. If the sand around the eggs hits 30 degrees Celsius, the gender balance shits to
26、females: at about 32 degrees they are all female. Above 34, you get boiled eggs. On some nesting beaches, scientists are artificially cooling nests with shade or irrigation and trying to protect broader areas of coastal property from development to ensure that turtles have a place to nest as the sea
27、s rise. 1. Why does the resort town stop promoting its turtle tourism? A. It decides not to disturb the turtles normal life. B. Tourists have lost interest in watching turtles. C. There are only very few turtles now. D. The turtle museum was destroyed by a high tide. 2. Which of the following is the
28、 major factor in the turtles endangerment? A. The locals eating habit. B. Drift net fishing. C. Beach development. D. Global warming. 3. We learn from the last paragraph that scientists. A. are doing research on the sea rise B. are moving turtles to new homesC. are protecting turtles nests D. are ge
29、tting rid of sea weeds4. The passage intends to. A. introduce a special kind of sea turtleB. explain the mystery of turtles eggsC. show the dangers a certain kind of turtle is facingD. attract more visitors to a sea turtle museum【参考答案】14、CDCC 较难题目特训：节能环保类 阅读下列四篇短文，从每小题后所给的A,B,C或D四个选项中，选出最佳选项。Sometim
30、es, the simplest ideas are the best. For example, to absorb heat from the sun to heat water, you need large, flat, black surfaces. One way to do that is to build those surfaces specially, on the roofs of buildings. But why go to all that trouble when cities are full of black surfaces already, in the
31、 form of asphalt(柏油) roads? Ten years ago, this thought came into the mind of Arian de Bondt, a Dutch engineer. He finally persuaded his boss to follow it up. The result is that their building is now heated in winter and cooled in summer by a system that relies on the surface of the road outside. Th
32、e heat-collector is a system of connected water pipes. Most of them run from one side of the street to the other, just under the asphalt road. Some, however, dive deep into the ground. When the street surface gets hot in summer, water pumped through the pipes picks up this heat and takes it undergro
33、und through one of the diving pipes. At a depth of 100 metres lies a natural aquifer(蓄水层) into which several heat exchangers(交换器) have been built. The hot water from the street runs through these exchangers, warming the ground-water, before returning to the surface through another pipe. The aquifer
34、is thus used as a heat store. In winter, the working system is changed slightly. Water is pumped through the heat exchangers to pick up the heat stored during summer. This water goes into the building and is used to warm the place up. After performing that task, it is pumped under the asphalt and it
35、s remaining heat keeps the road free of snow and ice. 1. Which of the following is true according to the first two paragraphs? A. Arian de Bondt got his idea from his boss. B. Large, flat, black surfaces need to be built in cities. C. The Dutch engineers system has been widely used. D. Heat can also
36、 be collected from asphalt roads. 2. For what purpose are the diving pipes used? A. To absorb heat from the sun. B. To store heat for future use. C. To turn solar energy into heat energy. D. To carry heat down below the surface. 3. From the last paragraph we can learn that.A. some pipes have to be r
37、e-arranged in winterB. the system can do more than warming up the buildingC. the exchangers will pick up heat from the street surfaceD. less heat may be collected in winter than in summer4. What is most likely to be discussed in the paragraph that follows? A. What we shall do if the system goes wrong. B. What we shall do if there are no asphalt roads. C. How the system cools the building in summer. D. How the system collects heat in spring and autumn. 【参考答案】1-4 DDBC
