1、选择性必修二 Units 4-6 词汇练习题用本部分所学词汇和语法知识完成下列短文（每空一词）。AVolunteers have removed more than 3 tons of trash from Mount Qomolangma in just twoweeks, part of a difficult project by the Nepalese government to clean up decades of 1. g_left by 2. _ ( 徒 步 旅 行 者 ) and tourists. Among the rubbish were tents, climbin
2、g 3._ (成套工具), bottles, cans, empty oxygen containers, and human waste.“The clean-up campaign will be continued in the coming seasons as well to make the worldstallest mountain clean,” Ghimire said. “It is our responsibility to keep our mountain clean.”Overall, the initiative aims to 4. _ (处理) the 10
3、 tons of trash from Mount Qomolangmaover a six-week period this year.Nepal and China have long struggled with ways to keep the mountain clean. According toofficial 5. _ ( 统 计 数 据 ), more than 4,000 people have 6. _ ( 登 上 ) MountQomolangma since 1953, 807 of them last year alone. In 2013, Nepal asked
4、 for a $4,000 wastedeposit per team of climbers, refundable if each climber brought down at least 18 pounds of wastefrom the mountain before 7. d_. Only half of the climbers did so. And China reportedlybanned tourists from its base camp in Tibet in an effort to reduce waste on its side of themountai
5、n.BBeijing made the list of the top 10 most livable cities in China for 2019-2020, which wasreleased by China Central Television. It was the first time in the past 14 years that the capital hadbeen included on the list. Carried out by three institutions, the research 1. _ _(由组成) 130,000 responses of
6、 people across the country.A sense of contentment, happiness and security were the three top 2. _ (标准) in thesurvey. Beijing residents expressed “high satisfaction” for medical services, food safety, elderlycare services, etc. Among the factors that affect happiness, residents in Beijing think the 3
7、._ (极其重要的) factors are income level, health status, social security and 4. _(ecology) environment.As a capital city, Beijing has been constantly working to achieve a model of 5. _(harmony) and livable development. In terms of air quality, the average concentration (浓度) ofPM2.5 in Beijing showed sign
8、ificant 6. _ (减少) of 17.6 percent over the previous year.In 7. _ (compare) with the national average of 2.42 hours of leisure time per day, Beijingresidents were relatively busier, with an average of 2.33 hours per day.CAbout two-thirds of all people will be living in cities by 2030 and we wont be a
9、lone.Wild animals are also taking a liking to city living. This National Geographic series will featuresome interesting tales about 1. _ (城市的) wildlife and the ways cities are 2. _ (应付) the influx (涌入).These newcomers, ongoing research shows, are learning how to change their lifestyles sometimes 3.
10、_ (dramatic) to suit ours. Some have become active at night, whenpeople arent around, and perhaps most 4. _ (crucial), many have figured out how tonavigate (设法穿越) busy roads without getting hit.“We always forget that we are the biggest cause of evolution on the planet right now. Andwith so many anim
11、als going to cities, 5. _ (人类) must view cities as part of nature,” saysSuzanne MacDonald, a psychologist and biologist at York University in Toronto, Canada. “Tolive in harmony with animals whose 6. _ (栖息地) were destroying, were going to haveto do a lot more work to make them live easier.”DWe can p
12、articipate in biodiversity 1. _ ( 保 护 ) by increasing our knowledge ofenvironmental issues, our awareness of the impacts of biodiversity loss, and making a(n) 2._ (共同的) efforts with governments to protect our valuable ecosystems. We can become3. _ (influence) educators and role models as stewards (管
13、理员) of the environment byaiding in the recovery of species at risk and preventing other species from becoming at risk. Hereare some things we can do on a daily basis:Monitor and assess your pets impact on biodiversity. Some domestic (驯养的) animals,especially cats, are predators of wild animals and ca
14、n cause a decline of local populations ofnative species. It has been 4. _ (估计) that the cats kill tens of millions of birds each yearin North America.Maintain old standing dead trees and mature forest stands. Large dead trees provide nestingholes for many species and the mature forest will be replac
15、ed by old growth over time.Recycle, reuse and reduce. Recycling reduces pollution by reducing energy, electricity, andwater 5. _ (消耗量) and the need for landfills.Learn as much as you can about nature and share your knowledge with others. Visit naturalhistory museums, and native fish hatcheries (孵化场)
16、 to study local ecosystems. 6. _ (协助) at an organisation that focuses on protecting native species.ENASA 1. _ (宇航员) Bob Behnken and Doug Hurley completed a fiery, high-speedjourney back from the International Space Station on August 2nd, splashing down (溅落) in calmGulf of Mexico waters off the coast
17、 of Pensacola, Florida.It was the first time in the 59-year history of crewed American space travel that people hadused the Gulf as a landing site and the first launch (发射) of Americans to 2. _ (环绕轨道运行) from U. S. soil since the Space Shuttle was retired in 2011, which marked a new chapter inNASAs h
18、uman spaceflight program.“Today we really made history. This trip was a very 3. _ (reward) experience. Weare entering a new era of human spaceflight,” NASA Administrator Jim Bridenstine said at a newsconference after Bob Behnken and Doug Hurley had appeared from the 4. _ (航天舱).Gwynne Shotwell, presi
19、dent and chief operating officer of SpaceX, the private company thatengineered the flight, called it “an extraordinary mission”. “This is really just the beginning,” shesaid. “We are starting the journey of bringing people regularly to and from low Earth orbit, then 5._ (subsequent) onto the moon an
20、d then ultimately onto Mars.”答案A1. garbage2. hikers3. kits4. tackle5. statistics6. mounted7. departureB1. consisted of2. criteria3. vital4. ecological5. harmonious6. decrease7. comparisonC1. urban2. coping with3. dramatically4. crucially5. mankind6. habitatsD1. conservation2. joint3. influential4. estimated5. consumption6. AssistE1. astronauts2. orbit3. rewarding4. capsule5. subsequently
