资源简介

单元综合检测(五)
第一部分　阅读
第一节
阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳选项。
A
Discover how you can help endangered species! Volunteer to help conserve endangered species around the world with GoEco．
Sea turtles，Sri Lanka
The species is threatened by human hunters．The Sri Lankan government has approved the creation of hatcheries (孵化场) in order to protect this species．Volunteers on this program spend 60% of their time working in the hatchery and the other 40% is spent on activities such as beach cleanups and creating awareness within the local community．
Program Fees：$1，280 for 2 weeks and $1，680 per month for volunteers．
Wildlife Rescue，Western Australia
Adult kangaroos and wallabies are hunted for food，leaving thousands of their babies without parents．Many are killed or injured in road accidents．At the wildlife rescue center in Perth，Western Australia，volunteers live and help in the bushland caring for sick，injured，and displaced animals．
Program Fee：$2，095 for four weeks．Volunteers stay on site in a small room．Due to very limited space，applications must be sent at least 9－12 months in advance．
Endangered Species Reserve，South Africa
The project will give you an incredible wildlife experience while learning about conservation efforts．For the rest of the time between monitoring sessions，volunteers are required to enter all the data that they have collected into our databases．At times，volunteers need to operate on night shifts．We also give lectures and presentations over the lunch period．
Program Fee：$1，750 for 2 weeks．
Big Cat Refuge，South Africa
As a volunteer on this project，you will be involved in a wide variety of activities．Volunteer's work ranges from enrichment activities，such as toy making and farm work，to educating the visitors．Volunteers will also directly care for the cats by preparing food or feeding them as well as maintaining their living space．
Program Fee：$1，450 for 2 weeks．
1．What is the monthly project fee for volunteers in Sri Lanka
A．$1，280． B．$1，680．
C．$2，560． D．$2，960．
2．What is required of volunteers for the project in Western Australia
A．Having previous experience．
B．Working night shifts sometimes．
C．Applying for the project in advance．
D．Having a good knowledge of wildlife．
3．What can volunteers do for the project Big Cat Refuge
A．Study the habits of big cats．
B．Help to sell some toys about cats．
C．Guide visitors to the habitat of the cats．
D．Do daily routines in the cats' living space．
B
I was 6 years old when my father told me we were leaving the Big Apple Circus (马戏团)．Until that point，I had spent most of my life on the circus lot，playing with the other circus kids．The circus，by its nature，is one that has a loose structure．So the early years after my leaving the circus to sit in a classroom all day felt more like a prison．
But years later，I found areas that interested me．I took the skills I had learned from being onstage and applied them to broadcasting．And so when Boston's news station WBUR offered me a job out of college，I jumped at the chance．Along the way，I found I really enjoyed the work．I became WBUR's news reporter．The flexibility and adaptability I'd learned in the circus as a child helped me do my job naturally and easily in a stressful situation—whether it was a destructive tornado outside Boston，or the Boston Marathon bombings of 2013．
But then a serious infectious disease appeared．Suddenly，for the first time in my adult life，I went for a year without doing any shows．But it became clear to me that performing was what I truly wanted．For me，the circus symbolizes who I am．And stages have always been where I've felt the most free．Some people get nervous before they go onstage，but by assuming (扮演) the character of Jacques ze Whipper and drawing a stupid moustache on my face，all my social anxiety disappears．
Circus performances go beyond age，socioeconomic status，and even language．It's the type of performance where you can go anywhere in the world to entertain anyone—help anyone forget their troubles for 5，10，and even 30 minutes．And most importantly，for me，it means coming home．
4．How did the author feel in the early years of school
A．Curious． B．Unfree．
C．Loose． D．Impatient．
5．What do we know about the author's job at WBUR
A．He did it for his father．
B．He did it against his will．
C．He risked his neck doing it．
D．He took to it like a duck to water．
6．What does the circus probably mean to the author
A．A means of living．
B．A chance to go anywhere．
C．A part of his identity．
D．A way to forget his troubles．
7．Why does the author write the text
A．To express his love for circus performances．
B．To stress the value of performing．
C．To share his personal experiences in a circus．
D．To discuss the problem of choosing a job．
C
People have different ways of dealing with waste paper，specifically used newspapers．Some put them in the recycling area，while others keep them as wrappers (包装纸)．While these are both good measures，a Japanese publishing company had a better idea for their end use．
The Mainichi Newspapers Co．，Ltd．invented the “Green Newspaper”，which allows people to grow plants with it．This unique newspaper was published on Greenery Day，which is focused on environmental news and made of green paper with seeds placed into it．What makes it even more special is the ink (油墨) used to print words and photos，which is made from plants．The publisher advises readers to tear the used newspaper into small pieces and plant them in a container with soil．They should water them，like they would do for any plant．Within a few weeks，the seeds will grow into plants．
This brilliant concept was invented by Dentsu Inc．，one of Japan's most famous advertising agencies，which works with the publishing company on the initiative (倡议)．The publisher's belief is environmental sustainability (可持续性)．As its mission statement says，“The Mainichi doesn't take action only through information，but also by solving global issues．” With joint efforts，this initiative has reached the corners of Japan and sold around millions of copies daily．Other such initiatives producing plantable paper are also seen in India and the US．
About 95 million trees are lost for producing newspapers every year．The Internet，the number of whose users stands for 62.5 percent of the population worldwide，has influenced how people read news and the print readership has dropped greatly．However，the reinvention and reimagination of this newspaper will bring about a change in the publishing industry as well as having an environmental influence．
8．What do we know about the “Green Newspaper”？
A．It uses high tech materials．
B．It provides energy for seeds．
C．It's printed with plant based ink．
D．It's published to celebrate Greenery Day．
9．What message does the publisher's mission statement convey
A．It's easier said than done．
B．Everything comes to him who waits．
C．Many hands make light work．
D．Actions speak louder than words．
10．What's the author's attitude to the “Green Newspaper”？
A．Doubtful． B．Supportive．
C．Indifferent． D．Negative．
11．What can we learn from the last paragraph
A．About 59 million trees are lost for producing newspapers．
B．The Internet has changed the way people read news totally．
C．The popularity of the Internet leads to the fall of the print readership．
D．The “Green Newspaper” will encourage more people to protect the environment．
D
Despite the bad reputation of sharks，they are crucial to the health of the marine ecosystem and can even help fight climate change．
In the shallows of Shark Bay，Western Australia，seagrass is food for the sea cows，which can weigh as much as 500 kg and eat roughly 40 kg of seagrass a day．Sea cows are a rich source of food for tiger sharks．By keeping the sea cow population controlled，tiger sharks here help the seagrass grow sustainably．A booming seagrass meadow stores twice as much CO2 per square mile as forests typically do on land．
But tiger shark numbers are declining．Off Australia's northeast coast of Queensland，tiger sharks are estimated to have fallen by at least 71 percent，largely due to overfishing．A reduction in tiger sharks means more seagrass consumed by herbivores (食草动物) and less carbon stored in sea vegetation．This raised the question：What if they were absent from the Shark Bay—would the seagrass dominated ecosystem survive
To find out，researchers led by Rob Nowicki of Florida International University，spent time in Eastern Australia，where shark numbers were lower and sea cows ate seagrass largely undisturbed．“When uncontrolled，sea cows can rapidly destroy wide areas of seagrass，” said Nowicki．
Those findings emphasized that tiger sharks were playing an important role in preventing the reduction of seagrass in Shark Bay．If their populations continue to decline，the resilience of carbon rich ocean ecosystems will likely decrease．
When it comes to stimulating shark numbers，there have been movements toward more sustainable fishing，but a large percentage of the industry have not changed their methods，which is a reason why the population of many marine top predators (捕食者) continues to decline．
Aside from supporting sustainable fishing，Nowicki said the only way to truly protect marine life is to reduce our global greenhouse gas emissions．“Ultimately，if we are going to protect our ecosystems in the centuries to come，we are going to need to solve climate change while undertaking species protection at the same time．”
12．Why are tiger sharks vital to the marine ecosystem
A．They feed on various sea animals．
B．They can store large amounts of CO2．
C．They can prevent the loss of seagrass．
D．They influence marine species' distribution．
13．What does the underlined word “resilience” in paragraph 5 mean
A．Sustainability． B．Recovery．
C．Preservation． D．Construction．
14．What is the main cause of the population reduction of many top predators
A．Climate change．
B．Lack of protection．
C．Unsustainable fishing．
D．Loss of seagrass．
15．What's the main idea of the text
A．The number of tiger sharks is decreasing．
B．Climate change causes the loss of seagrass．
C．Environmental protection is at the top of the agenda．
D．Tiger sharks are vital to the health of the marine ecosystem．
第二节
阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。选项中有两项为多余选项。
Recycling is good for our planet，but it can be confusing．Can I recycle plastic bags？What about pizza cartons？Toothpaste tubes？Which bin should I use？There are so many questions，and more than half of Americans are unsure about how to recycle． 16 Here's a handy four step guide on how to recycle effectively：
Know what to put in the recycling bin．Keep it simple and focus on the most commonly recycled items，such as paper，glass，aluminum and plastic． 17 Don't use the recycled symbol as a guide．“The number on the container is really for people to identify the type of resin (树脂)．That's not helpful for the common consumer，” said Cody Marshall，a strategist at nonprofit Recycling Partnership．
18 It is really important to know what you cannot put in your bin．You can always check with your city or at BeRecycled．org．If you live in the US，just plug in your postcode to search．Recycling companies struggle with the same problem items：hoses (软管)，cords，needles and clothing，according to Marshall，so don't put those items in your bin．
Wash or clean items．Do a quick clean to make sure there is no food left in containers before you put them in the bin． 19 Save food for composting (堆肥) in your garden．
Don't bag it．Unless you live in a place that requires it，like New York City，keep the recyclables lost in the bin．“A lot of the time，it's not safe for our employees to tear those bags open，or it takes too much time，” said Keller．“ 20 ”
A．Know what is not recyclable．
B．The answers are not hard to find．
C．A lot of bagged stuff goes right to the landfill．
D．Plastic bags can be used again or returned to grocery stores．
E．If you really don't know if an item is recyclable，then just throw it in the garbage．
F．This is really important if you only use one bin because food items could ruin paper．
G．Hard plastics like water and soft drink bottles or anything like these can be recycled．
第二部分　语言运用
第一节
阅读下面短文，从每题所给的A、B、C、D四个选项中选出可以填入空白处的最佳选项。
This year，hundreds of people around the world are applying for a desired job to run Port Lockroy，the world's most remote post office．The 21 is in Antarctica，and one of the key 22 is the ability to count penguins(企鹅)．
Each year，the UK Antarctic Heritage Trust 23 four postmen to live on the island from November to March．Apart from being a nearly 80 year old British owned post office，it 24 as a museum．Although employees each have unique 25 ，they are cooperatively responsible for preserving the 26 place and caring for the thousands of tourists．The staff is also 27 environmental data collection and wildlife monitoring．
Applicants are warned there's not much time for relaxation and rest．Still，the job is highly 28 ．The UK Antarctic Heritage Trust gets hundreds of applications 29 for the position．They are mainly 30 to Port Lockroy，both for its history and its scientific significance．Lucy Dorman succeeded in applying for the 2019 2020 season．It was a real 31 for her．“Even though the job can be hard at times，there's a real sense of community．You've got to 32 ，because you can't get away from each other very easily．I really love that sort of 33 ，” she said．“And what you can achieve here is 34 ．The total experience offers both a different 35 towards the world and a new viewpoint on your function on the planet．”
21．A．center　 B．position
C．aim D．unit
22．A．requirements B．characteristics
C．virtues D．activities
23．A．persuades B．instructs
C．encourages D．hires
24．A．exists B．transforms
C．doubles D．develops
25．A．tastes B．talents
C．roles D．backgrounds
26．A．temporary B．historic
C．grand D．magical
27．A．in favor of B．in need of
C．in possession of D．in charge of
28．A．paid B．sought after
C．hard won D．respectable
29．A．annually B．weekly
C．monthly D．daily
30．A．invited B．devoted
C．related D．drawn
31．A．joy B．lesson
C．effort D．shock
32．A．get along B．show off
C．break through D．give in
33．A．loneliness B．eagerness
C．looseness D．togetherness
34．A．consistent B．rewarding
C．potential D．pure
35．A．entrance B．answer
C．attitude D．introduction
第二节
阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。
Preserving more habitats for China's giant pandas is providing a giant pay off．36．______(save) the giant panda from dying out isn't just good for the panda，but it's also good for economy，a new analysis by an international team of scientists shows．
The results，37．________(publish) in the magazine Current Biology，stress the economic benefits that go hand in hand with environmental protection．Giant pandas are one of the 38．________(rare) species around the world．But pandas fell on hard times in recent decades，thanks largely 39．________human encroachment (侵入)．In 1980 alone，many habitats 40．________(destroy) artificially，and in 1990，their habitats covered only 12，340 square kilometers，41．________is a major threat to the pandas in large part because bamboo，their main food source，is so low in nutrients that they must wander a lot of land in order to find and eat enough of it．
Because of this，Chinese officials began making significant efforts to save the panda from 42．________(extinct)，establishing more reserves and increasing the reserve area three times．Panda numbers 43．________(gradual) began to recover，hitting 1，596 in 2000 and 1，864 in 2010．
“44．________is clear that society's investment (投资)45．________(start) to pay off so far in terms of panda population recovery，” the study authors wrote．
第三部分　写作
第一节
假定你是校英文报的记者，你校于上周五举办了一场以“吟咏古风雅韵，传承诗意文道”为主题的中国古诗词吟诵比赛。请你就此用英语写一篇新闻报道，内容包括：
1．活动内容；
2．活动反响。
注意：1．写作词数应为80左右；
2．报道的题目已为你写好。
Recite ancient verses，pass on poetic artistry
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
第二节
阅读下面材料，根据其内容和所给段落开头语续写两段，使之构成一篇完整的短文。
One Saturday afternoon，I was watching TV in the living room with my grandpa when a blinding flash of lightning flashed across the sky，followed by a deafening sound，and the pictures on TV disappeared with that sound．Before I realized what had happened，a gray white shadow rushed in through the open window and flew over my head．Bang! It hit the wall and slid off to the floor．Shaking with fear，I approached it cautiously and saw that it was a pigeon．It looked at me in fear，trying to open its wings and struggling its feet，but apparently powerless．
So I called my grandpa and immediately set out to give it a helping hand．Taking it in my hands，I felt a few drops of warmth on my hands．It was blood! I gently spread its wings and there were a few red feathers inside．“Don't worry．We'll get it out alive，” Grandpa said to me．Then he got the first aid kit．With some cotton，we dried the blood，cleaned the wound and then put it under a hairdryer to dry．All went smoothly，for the pigeon had no strength left to resist．There happened to be an empty birdcage at home，so I put it in the birdcage gently and added a little water and some grains．
For the next few days，the moment I got home from school，I would run to feed the pigeon．And Grandpa helped a lot，tidying up the cage daily．Little by little，its strength returned．One evening，I fed it with the biscuit I was eating．It enjoyed it! One week later，its wound almost healed (痊愈); its feathers grew，and it became brave．Whenever I sat at the table eating biscuits，it looked up at me，cooing (咕咕地叫) constantly．To my joy，I could also reach into the cage to touch it．When I gently fingered its head，it playfully pecked (啄) at me．Finally it completely recovered．But every time I was with it，it seemed restless in the cage．To make it happy and pretty，I tied an orange string (线)around its leg．
注意：1．续写词数应为150左右；
2．请按如下格式作答。
One day，however，when I returned home，Grandpa met me at the door，looking embarrassed．________________________________________________________
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
Sure enough，I saw a pigeon flying into the house the next afternoon！____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
单元综合检测(五)
1 2 3 4 5 6 7 8 9 10 11 12
B C D B D C A C D B C C
13 14 15 16 17 18 19 20 21 22 23 24
B C D B G A F C B A D C
25 26 27 28 29 30 31 32 33 34 35
C B D B A D A A D B C
36．Saving　37．published　38．rarest　39．to　40．were destroyed　41．which　42．extinction　43．gradually　44．It　45．has started
第三部分　第一节
[参考范文]
Recite ancient verses，pass on poetic artistry
Last Friday，our school witnessed a Chinese Poetry Recitation Competition which aimed to create a rich literary atmosphere on our campus．
During the event，students gathered to recite classical Chinese poems from various dynasties．They demonstrated great public speaking skills and offered a unique understanding of their poems，while expressing their deep appreciation for the timeless charm of Chinese classical poetry．
A student interviewed said that he was deeply impressed by the participants' skillful performance．This competition successfully encouraged students to explore the everlasting beauty and cultural richness of our poetic heritage．
第二节
[参考范文]
One day，however，when I returned home，Grandpa met me at the door，looking embarrassed．I asked him what had happened．He turned around and pointed to the birdcage，apologizing to me that the pigeon slid out when he was tidying up the cage and flew away through the open window．Gone! I couldn't believe my ears．I rushed over to the birdcage．Just empty! I stared at the remaining water and grains，tears streaming down my cheeks．“Where has it gone？Will it be hurt again？Will it come back？．．．” I asked Grandpa，sobbing．“It will fly back！” he convinced me，wiping away my tears gently．
Sure enough，I saw a pigeon flying into the house the next afternoon！It perched near the birdcage，cooing．Despite great excitement，I approached it quietly．It was graywhite and had an orange string tied to one leg．My pigeon came back! “It must be hungry，” Grandpa grinned．Immediately，I fed it with grains and then tiptoed to the window and closed it，urging Grandpa to cage it．But he didn't．“Pigeons need freedom，” he explained to me patiently．I was hesitant but looking at the pigeon wandering and pecking at the grains peacefully，I realized Grandpa was right! I turned back to the window and opened it．
【语篇解读】　本文是一篇应用文。文章主要介绍了四项世界上不同地方保护动物的志愿活动。
1．B　[细节理解题。根据Sea turtles，Sri Lanka部分中的“Program Fees：$1，280 for 2 weeks and $1，680 per month for volunteers．”可知，在斯里兰卡做志愿者每月需支付的费用是$1 680。故选B。]
2．C　[细节理解题。根据Wildlife Rescue，Western Australia部分中的“Due to very limited space，applications must be sent at least 9－12 months in advance．”可知，志愿者要想参与在西澳大利亚的项目需要提前申请。故选C。]
3．D　[细节理解题。根据Big Cat Refuge，South Africa部分中的“Volunteers will also directly care for the cats by preparing food or feeding them as well as maintaining their living space．”可知，该项目的志愿者要在猫科动物生活的地方做一些照顾它们的日常工作。故选D。]
【语篇解读】　本文是一篇记叙文。文章主要讲述了作者离开马戏团后的人生经历，以及作者如何将马戏团的经验应用于广播行业，并成为新闻记者，但马戏还是萦绕在作者心头。
4．B　[细节理解题。根据文章第一段的“So the early years after my leaving the circus to sit in a classroom all day felt more like a prison．”可知，作者离开马戏团后的最初几年，整天坐在教室里感觉像是在监狱里，也就是感到不自由。故选B。]
5．D　[推理判断题。根据文章第二段的“And so when Boston's news station WBUR offered me a job out of college，I jumped at the chance．Along the way，I found I really enjoyed the work．I became WBUR's news reporter．The flexibility and adaptability I'd learned in the circus as a child helped me do my job naturally and easily in a stressful situation—whether it was a destructive tornado outside Boston，or the Boston Marathon bombings of 2013．”可知，作者在WBUR工作时，能够在紧张的情况下自然而轻松地完成工作，由此可知，这份工作对作者而言如鱼得水，非常轻松。故选D。]
6．C　[推理判断题。根据文章第三段的“For me，the circus symbolizes who I am．”以及最后一段的“And most importantly，for me，it means coming home．”可知，对于作者而言，马戏团已经是他身份的一部分，象征着作者的身份。故选C。]
7．A　[写作意图题。根据文章第三段的“But it became clear to me that performing was what I truly wanted．．．all my social anxiety disappears．”以及全文内容可知，文章主要表达了作者对马戏的热爱。故选A。]
【语篇解读】　本文是一篇说明文。文章主要介绍了一家日本出版公司对废纸的处理。
8．C　[细节理解题。根据文章第二段的“What makes it even more special is the ink used to print words and photos，which is made from plants．”可知，打印这种“绿色环保的报纸”的墨水是由植物制成的。]
9．D　[推理判断题。根据文章第三段的“The publisher's belief．．．has reached the corners of Japan and sold around millions of copies daily．”可知，出版商的使命宣言和出版商的行为相一致，他们的理念是环境的可持续性，而他们也通过自己的行动践行这一理念。由此推知，选项D“Actions speak louder than words．(事实胜于雄辩)”阐述的正是这家出版商的行为。]
10．B　[观点态度题。根据文章最后一段的“However，the reinvention and reimagination of this newspaper will bring about a change in the publishing industry as well as having an environmental influence．”可推知，作者对于这份报纸持支持的态度。]
11．C　[细节理解题。根据文章最后一段的“About 95 million trees are lost for producing newspapers every year．The Internet，the number of whose users stands for 62.5 percent of the population worldwide，has influenced how people read news and the print readership has dropped greatly．”可知，由于互联网的普及，纸质报纸的读者数量大幅下降。]
【语篇解读】　本文是一篇说明文。文章主要介绍了虎鲨对于海洋生态系统的健康至关重要，以及目前虎鲨数量急剧减少的现象和可能造成的危害，最后呼吁人们支持可持续的捕捞和减少温室气体排放。
12．C　[细节理解题。根据第二段的“In the shallows of Shark Bay，Western Australia，seagrass is food for the sea cows，which can weigh as much as 500 kg and eat roughly 40 kg of seagrass a day．Sea cows are a rich source of food for tiger sharks．By keeping the sea cow population controlled，tiger sharks here help the seagrass grow sustainably．”可知，虎鲨吃海牛，海牛数量减少，其食物来源海草数量可以增长，从而维持海洋生态平衡，即虎鲨可以防止海草数量的减少。]
13．B　[词义猜测题。根据画线词前一句“Those findings emphasized that tiger sharks were playing an important role in preventing the reduction of seagrass in Shark Bay．”可知，虎鲨在防止鲨鱼湾海草减少方面发挥着重要作用，故如果虎鲨数量减少，海草会被消耗得更多，海洋生态系统的恢复能力会下降，由此推知画线词所在句句意为“如果它们的数量继续下降，富含碳的海洋生态系统的恢复能力可能会下降”，resilience意为“恢复”。]
14．C　[细节理解题。根据倒数第二段的“When it comes to stimulating shark numbers，there have been movements toward more sustainable fishing，but a large percentage of the industry have not changed their methods，which is a reason why the population of many marine top predators continues to decline．”可知，海洋顶级捕食者数量减少的原因主要在于捕鱼业仍在使用不可持续的捕捞方法。故选C。]
15．D　[主旨大意题。根据全文内容，并结合第一段“Despite the bad reputation of sharks，they are crucial to the health of the marine ecosystem and can even help fight climate change．”可知，文章主要介绍虎鲨对于海洋生态系统的健康至关重要，并呼吁人们支持可持续的捕捞和减少温室气体排放。]
【语篇解读】　本文是一篇说明文。文章主要介绍了有效回收的4个步骤：知道要把什么放进回收箱；知道什么是不可回收的；扔垃圾之前清理出食物残留；不要把垃圾装袋。
16．B　[前文“There are so many questions，and more than half of Americans are unsure about how to recycle．”提及了回收时有太多问题令人困扰，后文“Here's a handy fourstep guide on how to recycle effectively”则说到有效回收的4个步骤。由此推知，设空句作为中间过渡句，应是与前文在句意逻辑上构成转折，且引出后文内容。B项“The answers are not hard to find．(答案不难找到。)”的“The answers”对应前文“questions”，句意上与前文构成转折，且可引出后文内容，用在文中可承前启后，符合语境。]
17．G　[根据主题句“Know what to put in the recycling bin．”可知，该段主要讲述可回收物品，G项“Hard plastics like water and soft drink bottles or anything like these can be recycled．”介绍的是可回收的物品，贴合该段主题，符合语境。]
18．A　[根据后文“It is really important to know what you cannot put in your bin．”可知，本段介绍的是不可回收的物品。选项A“Know what is not recyclable．(知道什么是不可回收的。)”可作该段主题句。]
19．F　[前文“Do a quick clean to make sure there is no food left in containers before you put them in the bin．”提及要将食物残留清理出来，那么，设空句应解释这样做的原因。选项F“This is really important if you only use one bin because food items could ruin paper．”解释了原因，符合语境。]
20．C　[前文“A lot of the time，it's not safe for our employees to tear those bags open，or it takes too much time”提及袋装垃圾有危害性或浪费时间。由此推知，设空句应讲述为了安全或不浪费时间，袋装垃圾的去处。选项C“A lot of bagged stuff goes right to the landfill．”讲到了袋装垃圾不会经过人工处理，直接被扔进了填埋场，符合语境。]
【语篇解读】　本文是一篇说明文。文章主要介绍了位于南极洲的洛克罗伊港邮局的招聘吸引了很多人，在那里员工不仅要收集环境数据和监测野生动物，还要负责数企鹅。
21．B　[该职位在南极洲，其中一个关键要求是能够数企鹅。根据上文“This year，hundreds of people around the world are applying for a desired job to run Port Lockroy，the world's most remote post office．”可知，此处表示该职位在南极洲。]
22．A　[该职位在南极洲，其中一个关键要求是能够数企鹅。根据空后“is the ability to count penguins”可知，此处表示其中一个关键的要求是能够数企鹅。]
23．D　[每年，英国南极遗产信托基金都会雇用四名邮递员从11月到3月住在岛上。根据上文“applying for a desired job”和下文“employees”可知，此处表示聘用四名邮递员。]
24．C　[除了是一家拥有近80年历史的英国邮局外，它还兼作博物馆。前面提到洛克罗伊港是一个“post office”，空后又提到“a museum”，故此处表示该邮局兼作博物馆。double as表示“兼作”。]
25．C　[虽然每个员工都有独特的角色，但他们合作负责保护历史名胜和照顾成千上万的游客。根据下文“they are cooperatively responsible for preserving the place and caring for the thousands of tourists”可知，此处表示员工各司其职。]
26．B　[虽然每个员工都有独特的角色，但他们合作负责保护历史名胜和照顾成千上万的游客。根据上文“a nearly 80yearold Britishowned”和空前的“preserving”可知，空处表示有历史意义的地方。]
27．D　[工作人员还负责环境数据收集和野生动物监测。根据空前的“also”可知，本空应与前面的“responsible for”在含义上接近，故用in charge of表示“负责”。]
28．B　[尽管如此，它仍然很抢手。根据前文“there's not much time for relaxation and rest”可知这份工作没有多少时间休息和放松，再结合“Still”可知，它仍然很抢手。]
29．A　[英国南极遗产信托基金每年收到数百份该职位的申请。根据上文中的“This year，hundreds of people．．．desired job”和下文中的“the 20192020 season”可知，此处表示英国南极遗产信托基金每年都会收到大量申请该职位的信。]
30．D　[他们主要被洛克罗伊港吸引，因为它的历史和科学意义。根据空后“both for its history and its scientific significance”可知，求职者们是被它的历史和科学意义吸引。]
31．A　[这对她来说是一种真正的快乐。根据前文“Lucy Dorman succeeded in applying”可知该职位很抢手，但是Lucy Dorman申请成功了，再结合下文中的“I really love”可知，此处表示对她来说，获得这个职位很让她开心。]
32．A　[你得与人和睦相处，因为你们不能轻易地离开对方。根据前文“a real sense of community”和下文中的“you can't get away from each other very easily”可知，此处表示你得与人和睦相处。]
33．D　[“我真的很喜欢那种和睦相处。”她说。根据前文“a real sense of community”和“you can't get away from each other very easily”可知，此处表示Lucy Dorman喜欢那种和睦相处。]
34．B　[你在这里能取得的成就是有益的。根据空前的“what you can achieve here”和下文中的“The total experience offers．．．your function on the planet．”可知，此处表示你在这里获得的东西很有益。]
35．C　[整体体验既提供了对世界的不同看法，也提供了对你在地球上的作用的新观点。根据空前“offers both a different”及空后的“a new viewpoint”可知，空处应与“a new viewpoint”相对应，表示对世界的不同看法。]
【语篇解读】　本文是一篇说明文。文章主要介绍了保护中国大熊猫栖息地以及其带来的好处。
36．Saving　[考查非谓语动词。句意：一个国际科学家团队的一个新的分析显示，拯救大熊猫免于灭绝不仅对大熊猫有好处，而且对经济也有好处。此处作主语，应填动词ing形式。故填Saving。]
37．published　[考查非谓语动词。句意：发表在《当代生物学》杂志上的研究结果强调了经济效益与环境保护齐头并进的重要性。The results与publish之间为被动关系，故应填过去分词作定语。故填published。]
38．rarest　[考查形容词的最高级。句意：大熊猫是世界上最稀有的物种之一。“one of＋最高级”为固定结构，表示“最……之一”。故填rarest。]
39．to　[考查介词。句意：但大熊猫在最近几十年陷入了困境，这主要是由于人类的入侵。thanks to由于。故填to。]
40．were destroyed　[考查动词的时态、语态和主谓一致。句意：仅在1980年，许多栖息地被人为破坏，到1990年，它们的栖息地面积仅为12 340平方公里，这在很大程度上对大熊猫构成了主要威胁，因为竹子是它们的主要食物来源，其营养成分非常低，它们必须四处游荡，才能找到并吃足够多的竹子。由“In 1980”可知，空处谓语动词应用一般过去时，根据句意可知，与主语之间为被动关系，且要与主语many habitats保持主谓一致，用复数。故填were destroyed。]
41．which　[考查定语从句。句意：仅在1980年，许多栖息地被人为破坏，到1990年，它们的栖息地面积仅为12 340平方公里，这在很大程度上对大熊猫构成了主要威胁，因为竹子是它们的主要食物来源，其营养成分非常低，它们必须四处游荡，才能找到并吃足够多的竹子。空处引导一个非限制性定语从句，代替前面的句子，并在从句中充当主语。故填which。]
42．extinction　[考查词性转换。句意：正因为如此，中国官员开始做出重大努力来拯救大熊猫免于灭绝，建立了更多的保护区，保护区面积增加了三倍。空处在介词from后，应填名词作宾语。故填extinction。]
43．gradually　[考查词性转换。句意：大熊猫的数量逐渐恢复，2000年达到1 596只，2010年达到1 864只。修饰动词began，应用副词作状语。故填gradually。]
44．It　[考查代词。句意：很明显，就熊猫数量恢复而言，社会的投资到目前为止已经开始收到回报。it is clear that＋．．．，表示“很明显……”，其中it是形式主语，真正的主语是that引导的主语从句。故填It。]
45．has started　[考查动词时态及主谓一致。句意：很明显，就熊猫数量恢复而言，社会的投资到目前为止已经开始收到回报。根据so far可知，空处谓语动词用现在完成时态，且与主语investment保持一致，助动词用has。故填has started。]
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