学年高二英语选修6练习Unit 4 Global warm.docx

1、学年高二英语选修6练习Unit 4 Global warm单元综合测评(时间：100分钟；满分：120分).阅读理解(共15小题；每小题2分，满分30分)阅读下列短文，从每题所给的四个选项(A、B、C和D)中，选出最佳选项。AA few weeks ago a group of scientists produced a report about global warming and the natural world.They wanted to find out if global warming was dangerous for plants and animals.The scien

2、tists were surprised by what they found.They saw that during the next 50 years about 25% of land animals and plants will disappear from the earth.More than 1 million plants and animal species will die out by 2050.The head of the research team，Christ Thomas，who is a professor of conservation biology

3、at Leeds University，said the results of their research were frightening.More than 10% of all plants and animals will disappear from the earth.It is too late to save many plants and animals because of the greenhouse gases that are already in the atmosphere.But the scientists say if we control greenho

4、use gases now，we can save many more plants and animals from disappearing.The scientists studied some areas of the world with very rich biology.These areas were Europe，Australia，Central and South America，and South Africa.Their studies showed that species living in mountainous areas had a better chanc

5、e of survival because they could move uphill to get cooler.In flat areas，such as deserts，plants and animals would have to move very long distances to get cooler，so they are in great danger of dying out.The scientists found many surprising things.For example，they found that half of the 24 species of

6、butterfly they studied in Australia would soon disappear.【语篇解读】本文是一篇记叙文。作者通过一组科学家所作的报告推测在不久的将来，温室气体量的增加对动植物物种有毁灭性的影响。由于全球变暖，动植物的生存空间也在发生改变，其数量和种类也在不断减少。作者试图通过分析现状唤起人们对环境保护的意识。1According to this passage，global warming can be best described as _ to many plants and animals.Adeadly BsurprisingCdisappoin

7、ting Dfrightening【解析】推理判断题。尽管B、D两项分别在第三段和第二段中出现，但surprising是用来描述科学家在澳大利亚发现24个蝴蝶物种的一半将消失时的心情的，而frightening则用来描述科学家得到研究结果时的心情。根据文章大意可知，全球变暖带来的是动植物物种的不断减少，这种影响对动植物来说是致命的。【答案】A2Whats the purpose of the research led by Christ Thomas?ATo protect animals and plants from global warming.BTo call on people to

8、 control greenhouse gases.CTo warn us of the dying out of many animals and plants.DTo study the effect of global warming on animals and plants.【解析】由文章第一段第二句可知这项研究的目的。【答案】D3What can be the best title of this passage?AGreenhouse effect and global warmingBExtinct animals in the worldCA frightening disc

9、overy concerning global warmingDDisappearance of butterflies【解析】主旨大意题。纵观整篇文章可知，作者向人们展示了温室气体对动植物物种的灭绝性危害。A项过于宽泛；B项并未提及动植物灭绝的原因，不能完全反映文章的内容；D项仅提及蝴蝶物种的灭亡，过于片面。【答案】C4We can learn from the passage that _Aabout 25% of land animals and plants have disappeared from the earthBin about four decades more than

10、1 million plants and animal species will die outCwe can do nothing to save the plants and animalsDwildlife in flat areas cant find enough food【解析】细节理解题。通过第一段可知，在未来的50年里，将有大约25%的陆地动植物灭绝，A项时态有误；B项表述正确，in about four decades即大约40年后，即2050年左右；C项错在we can do nothing上；D项文章并未提及。【答案】BB Chinese tourists prefer

11、hotels and restaurants that offer free Wifi when traveling abroad.Most Chinese tourists instantly update their social networks using their mobile phones.They send photos and short videos to friends and family when traveling abroad.About 10 percent of outbound(出境的)Chinese tourists get expensive marri

12、ng charges(漫游费)by using 3Gpowered smart phones.About 90 percent of Chinese travelers consider Wifi indispensable when traveling abroad.They often use phone apps to create travel routes and book hotels，which requires large data flows that can be expensive without Wifi.But free Wifi is not always avai

13、lable，even in regions with advanced telecommunications，such as the United States and Europe.Portable Wifi costs 1550 yuan a day，depending on the country.Its cheaper in South Korea，Japan and Thailand.The Wifi services increase rapidly thanks to reasonable pricing and smooth surfing.Thus，a growing num

14、ber of travel agencies begin to offer increasingly diverse Wifi services.A travel website Ctrip leases Wifi transmitters that offer unlimited data for about 20 yuan a day on average in more than 100 countries.It plans to make mobile Wifi an important part of its business model.Another travel website

15、 Tuniu also launched a Wifi phone service in 2013.More than 100，000 people used the service in 2014.More than 100 million Chinese went abroad last year，and the 10 percent who used Wifi services spent an average of 150 yuan，and its expected to grow largely.But the business may become out of date in f

16、ive to eight years，for more locations are offering free Wifi.In the meantime，it is reported that more forprofit models should be introduced and offer more services for outbound travelers in the future.5Why do Chinese travelers prefer hotels and restaurants with free Wifi when traveling abroad?AThey

17、want to have their phones updated.BThey are fond of using phone apps to create their travel routes.CThey prefer to experience the Wifi service in different countries.DTheyd like to share what they have seen with their friends and family.【解析】细节理解题。从文章第一段第二、三句可知，中国游客出境游时喜欢及时更新个人社交网络，与朋友和家人分享旅途见闻，故选D。【

18、答案】D6What does the underlined word “indispensable”mean in Paragraph 2?ANecessary. BUseless.CExpensive. DAmazing.【解析】词义理解题。从文章第二段第二句和最后一句可知，通过Wifi链接可以解决游客旅途中的很多问题，而且游客认为没有Wifi的条件下使用流量价格太贵，因此推断出Wifi 是不可缺少的，故选A。【答案】A7. What can be inferred from the passage?ATravel websites will stop offering free Wifi

19、services to travelers.BTravel website Tuniu intended to compete with Ctrip and launched its Wifi phone service.CThe portable Wifi costs less when traveling in some Asian countries than in European countries.DThe demand for Wifi transmitters is growing in pace with 3Gsmartphones.【解析】推理判断题。从文章第三段第三句“I

20、ts cheaper in South Korea，Japan and Thailand.”可知在大部分亚洲国家的Wifi消费比西方国家便宜，故选C。【答案】C8What will be the future of the Wifi service offered by some travel agencies?AIt will be useless when forprofit models are introduced.BIt will be used by more than 100 million Chinese next year.CIt will grow in the futur

21、e but will be outdated in a couple of years.DIt will offer more nonprofit services for outbound travelers.【解析】细节理解题。从文章最后一段第二句“But the business may become out of date in five to eight years，for more locations are offering free Wifi.”可知几年后由旅游公司提供的Wifi业务将会过时，因为更多的旅游地将免费提供Wifi，故选C。【答案】CCSince the first

22、 Earth Day in 1970，Americans have gotten a lot “greener” toward the environment(环境)“We didnt know at that time that there even was an environment，let alone that there was a problem with it，”says Bruce Anderson，president of Earth Day USA.But what began as nothing important in public affairs has grown

23、 into a social movement.Business people，political leaders，university professors，and especially millions of grassroots Americans are taking part in the movement.“The understanding has increased many，many times，”says Gaylord Nelson，the former governor from Wisconsin，who thought up the first Earth Day.

24、According to US government reports，emissions(排放) from cars and trucks have dropped from 10.3 million tons a year to 5.5 million tons.The number of cities producing CO beyond the standard has been reduced from 40 to 9.Although serious problems still remain and need to be dealt with，the world is a saf

25、er and healthier place.A kind of “green thinking” has become part of practices.Great improvement has been achieved.In 1988 there were only 600 recycling(回收利用) programs; today in 1995 there are about 6，600.Advanced lights，motors，and building designs have helped save a lot of energy and therefore prev

26、ented pollution.Twentyfive years ago，there were hardly any education programs for environment.Today，its hard to find a public school，university，or law school that does not have such a kind of program.“Until we do that，nothing else will change! ”says Bruce Anderson.【语篇解读】本文是一篇说明文。主要介绍了从1970年第一个“地球日”以

27、来，美国人在环保问题认识上的变化以及他们采取的一些积极应对环境问题的有效措施等。文章最后还指出了教育在环保方面的重要性。9According to Anderson，before 1970，Americans had little idea about_Athe social movementBrecycling techniquesCenvironmental problemsDthe importance of Earth Day【解析】细节理解题。根据第一段的We didnt know at that time that there even was an environment，let

28、 alone that there was a problem with it.“那时候我们甚至不知道环境的存在，更别提环境问题了”可知，当时美国人对环境问题没有足够的认识，因此应选择C项。A项指社会运动，与主题不符；B项指回收的技巧，范围太窄；D项应该是环境的重要性，而不是“地球日”的重要性。【答案】C10Where does the support for environmental protection mainly come from?AThe grassroots level.BThe business circle.CGovernment officials.DUniversity

29、 professors.【解析】细节理解题。根据第二段第二句Business people，political leaders，university professors，and especially millions of grassroots Americans are taking part in the movement.“商人、政治领导人、大学教授，尤其是数百万的基层美国民众正在参与这项运动”可知，这里强调了这个运动的支持者应该是那些普通的美国民众，因此答案应是A项The grassroots level，从而排除前面提到的那几类人。【答案】A11What have American

30、s achieved in environmental protection?AThey have cut car emissions to the lowest.BThey have settled their environmental problems.CThey have lowered their CO levels in forty cities.DThey have reduced pollution through effective measures.【解析】细节理解题。文章第三段的第一句说明了汽车和卡车的尾气排放量从每年1 030万吨降到了550万吨，由此可排除A项；再结合

31、第三段的第二句“一氧化碳排放超标的城市从40个降到了9个”可知C项是错误的；根据第三段的第三句提到的“环境问题依然严峻”可知这个问题还没有得到解决，所以排除B项。本段列举的这些数字证明了美国人采取了有效措施，减少了环境污染，因此答案选D项。【答案】D12What is especially important for environmental protection according to the last paragraph?AEducation. BPlanning.CGreen living. DCO reduction.【解析】推理判断题。结合最后一段提到“25年以前，在美国几乎没有

32、关于环境的教育项目，而如今，很难找到没有类似项目的公立学校、大学或者法学院了”，再结合布鲁斯所说的“没有教育，就无法改变环境问题”等，我们可以推断出教育(education)的重要性，从而排除B项“计划”、C项“绿色生活”和D项“减少一氧化碳”这几个选项。【答案】ADAfter years of study，I have known there are only two types of people in this world：those who get to the airport early and those who arrive as the plane is about to take off.If there were any justice in this world，the ea