32、d be history in parts of Canada within just a few decades, according to a new report. The report shows that warming temperatures have resulted in a noticeable decrease in the length of the skating season over the past half century.The largest decrease in season length were observed in the prairies（大 。

33、草原）and Southwest regions of Canada. The researchers said outdoor skating may not be possible within the next few decades in areas such as British Columbia and Southern Alberta. Evidence of this was seen earlier this year when the worlds longest skating rink（溜冰场）, the Rideau Canal Skateway in Ottawa, 。

34、 was closed due to warmer-than-usual seasonal temperatures.Their study, published in the journal Environmental Research Letters, calculated the annual start date and length of the outdoor skating season (OSS) from historical weather data across Canada, and recorded how these have changed since the 1 。

35、950s with global warming.“The creation of natural skating rinks depends on having enough cold winter days. It is hard to imagine a Canada without outdoor hockey,” said Damon Matthews, of Concordia University. “But I really worry that this will be a consequence of our continuing to ignore the climate 。

36、 problem and prevent international efforts to decrease greenhouse has emissions（排放）.Using information from outdoor public ice skating rinks in various Canadian cities, the researchers created a set of weather criteria that marks the beginning, and determines the length, of the outdoor skating season 。

37、 is the last in a series of three days where the highest temperature does not go above -5, since it takes several cold days to lay the initial ice on the rink. And then, the researchers counted the number of days when it is possible to flood the rink to create more ice to calculate the seasons lengt 。

38、h at each of the 142 stations.Canada appears to have taken more of a hit from global warming compared to other countries in the world. Since 1950, winter temperatures in Canada have increased by more than 2.5, about three times the globally-averaged warming.43. What does the text mainly discuss?A. T 。

39、he history of ice hockey in Canada.B. The challenge ice hockey faces in Canada.C. The change of seasonal temperatures in Canada.D. The importance of ice hockey in Canadas culture.44. It can be learned from the text that .A. The worlds longest skating rink is to be closed.B. The temperature in Britis 。

40、h Columbia has kept decreasingC. Canada is suffering more from global warming than other countriesD. Outdoor skating will disappear in a couple of years in Southern Alberta.45. Damon Matthewss words show that .A. he is very fond of outdoor ice hockey.B. there are fewer and fewer skating rinks in Can 。

41、ada.C. he thinks the future of outdoor hockey is hopeless.D. people pay little attention to the climate problem46. Paragraph 5 is mainly about .A. the influence of the length of OSSB. the cause for the change in the length of OSSC. the method of calculating the length of OSSD. the difficulty in calc 。

42、ulating the length of OSSDElaine Yu Yee-nee, 15 Creative Secondary SchoolLockers are designed in a way to hide their contents for a reason. Otherwise, theyd have open fronts like cupboards. Searching students lockers would be a total invasion（侵犯）of privacy. Having a locker is more than having a plac 。

43、e to store your stuff. A locker also gives you the freedom to keep certain things hidden. These can include harmless personal items like diaries, letters and photographs. Searching lockers could discomfit students and others might make fun of them.Yes, lockers are school property（财产）. But that doesn 。

44、t give schools the right to inspect lockers as they please. While students are using lockers, they have the right to keep their contents private. Teachers could ask for permission to take a look inside a students locker and if the student is OK with that, then it would be fine. Searching students lo 。

45、ckers without their permission would result in the loss of trust.I doubt that students who have something dangerous to hide, such as weapons or drugs, would put them in their lockers. They would not want to risk being caught so easily.Giving schools the right to search lockers would not help catch t 。

46、hose who commit crimes. But it would certainly create an environment in which students would be embarrassed to have their belongings shown in public for no good reason.Ronald Ling Pak-ki, 20, University of Hong KongMany students see their lockers as personal property. They would never agree that sch 。

47、ools should have the right to inspect their lockers. But I think schools have an absolute right to do so.It is the schools that actually own the lockers. Students just use them to store some of their things safely and conveniently. There are clear rules on what items students can and cannot keep in。

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标题：2013|2013届高考英语冲刺题( 三 )