资源简介

B2 U2 Wildlife Protection
一、单词拼写
1．________ v.为……提供住宿；容纳→________ n. 住处；工作场所
2．________ vi. 适应 vt. 使适应；使适合→________ n. 适应；改编；改写本→________ adj. 能适应的；可修改的
3．________ vt. 使惊恐；使害怕 n. 恐慌→________ adj. 惊人的；使人惊恐的→________ adj. 害怕的；担忧的
4．________ n. 美；美人→________ adj. 美丽的；美好的→________ vt. 美化
5．________ adj. 残忍的→________ n. 残忍→________ adv. 残忍地
6．________ n. 减少；降低；减少量 vt. & vi. （使大小、数量等）减少；减小；降低→________ v. 增加；增长→________ adv. 渐增地
7．________ v. 发现，察觉→________ n. 发现，察觉；侦破
8．________ n. 危险→________ adj. 危险的→________ vt. 使遭受危险→________ adj. 濒危的
9．________ v. 进化；（使）逐渐形成→________ n. 进化（论）；演变
10．________ vi. 存在；生存→________ n. 存在；生存→________ adj. 现存的；现行的
11．________ vt. & vi. 打猎；搜寻；追捕→________ n. 猎人→________ n. 打猎，狩猎
12．________ adj. 合法的→________ adj. 不合法的；非法的→________ adv. 不合法地；非法地
13．________ adj. 安全的；可靠的；牢固的 v. 获得；拴牢→________ n. 安全；保护措施→________ adv. 安全地；牢固地
14．________ n. 威胁→________ vt. 威胁；危及
15．________ adj. 通常的；惯常的→________ adv. 通常；经常；一般→________ adj. 特别的；不寻常的
阅读理解
A
Zach Hackett was 12,000 feet up a Colorado mountain last May when he thought he heard a weak sound. As he walked through a clearing, Hackett, 33, found the source: a black-and-white sheepdog.
“I was a little surprised, because dogs shouldn’t be up there so high,” said Hackett, who had been hiking all day in the mountain. Spring temperatures dropped below zero at night, and the dog looked near death. “I believe what I’d heard was his last cry for help, and that if I hadn’t come along, he would have died there,” Hackett said.
Five weeks earlier, Mike Krugman, 74, had let his dog Riley out for a walk. When the dog didn’t come back, Krugman didn’t worry at first. But later, he became concerned and rode around his farm to look for Riley. He thought Riley might have gone looking for his wife Pam, who had died months earlier. When Pam passed away, Riley hid behind the bed for several days. The next morning, Krugman looked for the dog in the snow and asked a local animal shelter to help search. A volunteer posted “missing” posters and searched the area for Riley. But no one found him.
After Hackett spotted the weak dog, he put Riley in a coat and carefully picked his way down. He thought he had to cross the river instead of walking around it, or it would have taken too long. When he reached his apartment, he ran a warm bath for Riley. “I gave him some water, and cooked some eggs for him,” Hackett says. Hackett cared for Riley through the night, and then drove him to a nearby shelter in the morning.
“People at the shelter were shocked when they checked the records and learned Riley had been gone for five weeks and one day,” he said. In that moment, Hackett realized why Riley was so weak when he found him.
Riley weighed 24 pounds when he went missing and had lost half of his body weight. “I got this call from the shelter, and they said someone had brought Riley in,” Krugman recalled. “Of course, I cried. Riley’s survival is a wonder.”
16．What can be learned about Riley according to paragraph 3
A．He received little attention. B．He had affection for Pam.
C．He liked to hide in the snow. D．He seldom walked by himself.
17．Why did Hackett choose to cross the river
A．To get away from danger. B．To give Riley timely care.
C．To send Riley back to Krugman. D．To get to the nearby shelter.
18．Which is the best title for the text
A．Mountain Mysteries: The Search for Riley B．Lost and Found: A Journey of Exploration
C．The Wonder of Riley: A Mountain Rescue D．A Hiker’s Discovery: The Secret of a Mountain
B
A new study has found that a lizard (蜥蜴) that once lived in forests has gone through genetic (基因的) changes to survive in city environments. The lizard’s official name is Anolis cristatellus. It is commonly found in Puerto Rico.
The team said they discovered the lizard had grown special scales (鳞片) that helped it climb more easily on smooth surfaces like walls and windows. It also grew longer legs in order to run faster across open areas. Research results were recently published in Proceedings of the National Academy of Sciences.
Kristin Winchell is a biology professor at New York University and the main writer of the study. She told The Associated Press, “We are watching evolution (进化) as it’s unfolding.” Winchell said as city development spreads out around the world, it is important to understand how organisms adapt to new environments. That way, she added, humans can design cities in ways that can support all kinds of animals.
The study examined 96 Anolis cristatellus lizards. The researchers compared the genetic makeup of lizards in forests to those living in Puerto Rico’s capital, San Juan, as well as two other cities. Scientists found that 33 genes were repeatedly linked to the city spread.
Wouter Halfwerk is an evolutionary ecologist and professor at Vrije University Amsterdam. He was not involved in the study. He told The Associated Press, “You can hardly get closer to a smoking gun,” meaning evidence or proof of something. Halfwerk said he was excited that the researchers were able to identify such rich evidence that the lizards had changed genetically to adapt to a different environment.
The study centered on adult male lizards, so it is unclear if females are changing in the same way or at the same rate as males. The researchers said it is also not clear at which point in a lizard’s life the changes happen.
19．What does paragraph 2 mainly talk about
A．The uses of lizards’ legs. B．The changes in the lizard’s body.
C．The skills of lizards’ climbing. D．The features of the special scales.
20．How did the researchers make the study
A．By comparing the lizards’ genes. B．By observing the lizards in forests.
C．By studying the lizards’ lifestyle. D．By testing the lizards’ living environment.
21．What is Halfwerk’s attitude to the study
A．Negative. B．Indifferent. C．Supportive. D．Uncertain.
22．What does the last paragraph show about the study
A．It lacks enough attention. B．It has little significance.
C．It meets many difficulties. D．It needs further research.
C
On a south-facing hill in northern Canada, snow slides down as a mother polar bear pushes her way out of the hole, sticking her head into the open air. Four months earlier, she had given birth to two bears. They stay close to their mother for warmth and food.
Barle’s life could have started like this. People think she was born and grew up on the west bank of Hudson Bay in 1984. Old papers show that she may have been sent to Germany in 1986 through the Manitoba Polar Bear Help Program. The program tried to move orphaned (孤儿的) baby bears to other countries and make sure they could live a good life. In Germany, Barle lived with animal trainer Fredy Gafner for unknown reasons. Soon after 1990, Gafner took his bear show to the Mexican Suarez Brothers Circus.
For 13 years, Barle and six other polar bears were forced to perform. People did not let Barle run, swim or climb, and she could not find a partner or have baby bears. When there were no shows, Barle and the other bears were kept in a truck with seven small metal rooms.
Barle might never have been saved if two Canadians, Ken and Sherri Gigliotti, had not helped. In 1996, the couple traveled to Cozumel, Mexico, and visited the Suarez Brothers Circus (马戏团). They were shocked and saddened by the bears’ poor living conditions. They brought home a program and shared their story with the local newspaper, the Winnipeg Free Press.
Soon after the newspaper published the story, Debbie Leahy, the head of an animal protection group, began to investigate the circus. She watched the bears perform many times, and once visited their living areas behind the stage. Every time she went there, the bears were dirty, and many flies flew around them.
Leahy made great efforts to save the bears. Later, the Manitoba government passed the Polar Bear Protection Act, which stated that only orphaned baby bears under two years of age were allowed to be put in zoos and that zoos must meet strict standards.
Due to mounting pressure from interest groups, the Suarez Brothers Circus finally left their seven polar bears in Puerto Rico and gave them up.
23．Why was Barle sent to Germany
A．To join a bear show. B．To get better care.
C．To visit her hometown. D．To receive medical treatment.
24．What was Barle’s life like while working with the Suarez Brothers Circus
A．Strict and hard. B．Easy but lonely. C．Quiet and safe. D．Busy but happy.
25．What can we learn from the text
A．The program sent all bears abroad. B．The circus kept the bears for protection.
C．Public attention helped save the polar bears. D．The program helped all homeless bears successfully.
26．What is the author’s purpose in writing the text
A．To praise the early bear program. B．To introduce Barle’s rescue story.
C．To describe the new life of a polar bear. D．To call on people to protect wild animals.
D
After an injury, some animals can regrow almost every cell in their bodies. Their abilities have long fascinated researchers. Now scientists are taking what they have learnt from these animals to human cells.
A zebrafish can go from being paralyzed (瘫痪的) to moving smoothly. Mayssa Mokalled at Washington University has identified a population of cells which are similar to human fetal astrocytes (星细胞) in the zebrafish that are important for this recovery. After an injury, astrocytes create a protective barrier around the damaged site.
When Mokalled’s team introduced the same molecules (分子) involved in the activation of the cells that achieve regeneration in zebrafish into human astrocytes, the cells started to look and behave more like those of the zebrafish. In initial studies, when the researchers transplanted the transformed human cells into mice, the cells seemed more effective at creating the protective barrier. “I would love to see this go all the way to treatment in humans,” says Mokalled.
But the distance between zebrafish and humans is wide. Almada, a stem-cell biologist, is instead looking at the lizard. Able to regenerate an entire tail, Lizard is the closest living relative to humans. Humans and lizards share many of the same genes. “It’ll be more translatable to human biology, because they have a lot of the same machineries at the DNA level,” says Almada.
Almada described how a population of muscle stem cells in lizards regenerates the animal’s tail. The cells are similar to those found in mice and humans, except that the lizard version can make muscle tissue, which the mouse and human versions cannot, he says. Almada hopes to work out how the lizard cells achieve this and eventually apply that to muscle growth in humans to treat degenerative muscular diseases, strengthen muscles in older people and treat wounds.
Florian Raible, a stem-cell biologist is studying yet another super-recovering animal — Platynereis dumerilii. “It’s a model for good regeneration, because its nervous system has similarities to that of humans, which makes it a relevant model for research.” says Raible.
27．What does the underlined phrase “Their abilities” in paragraph 1 refer to
A．Scientists’ research skills. B．Humans’ treatment methods.
C．Cells’ protective functions. D．Animals’ regeneration features.
28．What did Mokalled find about zebrafish
A．Its astrocytes are the same as humans’. B．Its molecules are integrated into human cells.
C．Its protective barrier can treat human diseases. D．Its certain cells aid recovery from being paralyzed.
29．Why are lizards studied by Almada
A．They are expert at regenerating. B．They have unique muscle molecules.
C．They have genes in common with humans. D．They are distinct from humans in muscle tissue.
30．What will the text talk about next
A．Further details of Platynereis dumerilii’s regeneration.
B．Differences between human nervous systems and those of animals.
C．Difficulties in applying animal research to human treatments.
D．The similarities between Platynereis dumerilii and other animals.
E
Artificial intelligence (人工智能) has been identified as one of the top three rising technologies in conservation (保护), helping protect species around the world. 31 .
Using AI can greatly reduce the physical work used to collect protective data. 32 , or find out an animal call from hours of field recordings. AI is often able to do the job of hundreds of people, getting faster, cheaper and more effective results.
33 . Stopping hunting has long been a big challenge. Hunters dress themselves up as fishers to enter the park undiscovered, often under the cover of darkness. AI can check whether there are illegal ships crossing the border and notify the security personnel immediately. It can also enable the security personnel to check out the park around the clock.
AI can help analyze (分析) water loss, which is important for animal conservation. 34 , such as a growing population, economic development and climate (气候) changing. With the help of AI, researchers can analyse changes in water resources across the country on the scale and level of detail needed. Besides, it can also recognize natural and human-created water bodies.
35 , and also makes a great contribution to the number of the kinds of animals.
A．AI can help stop illegal hunters from killing animals
B．AI can make people reconsider their choice of jobs
C．All in all, AI greatly improves the efficiency of animal protection
D．Conservationists regard AI as a tech solution to saving wild animals
E．AI can search for illegal hunters and injured animals by various means
F．AI can identify which photos contain valuable species among thousands of pictures
G．According to research, the pressure of rivers, lakes and wetlands comes from all sides
三、完形填空
John lived alone in a small house away from the noise of city life. One day, John heard a slight scratching (抓挠（声）) at his 36 . Opening the door, he was taken aback. Standing there was a small raccoon (浣熊), which was looking up at him, seemingly asking for 37 . After examining it, John found one of its feet was 38 . He got it into the house and took good care of it.
Days turned into weeks, and the raccoon, now named Rocky, lived 39 with John, providing entertainment and a sense of companionship that John hadn’t 40 .
One day, John’s prized possession, an antique 41 , went missing. He searched everywhere but 42 . Then he realized Rocky probably 43 it. John followed Rocky, observing his habits. As John explored deeper into Rocky’s world, he 44 a pile of hidden treasures. From shiny stones to lost keys, it seemed that Rocky had a hobby for 45 . But the watch was nowhere to be found.
Just as John was about to 46 , Rocky surprised him. It 47 John to a hollow (中空) tree, and there, among various small articles, was the missing watch. Rocky looked up at John, as if he was proud. At the sight of those, John stood there, surprised and excited, with his mouth wide open. Then he could hardly contain his 48 .
John realized the once 49 house was now filled with excitement and unpredictability. Rocky became a(n) 50 part of John’s life.
36．A．door B．table C．window D．side
37．A．shelter B．permission C．food D．help
38．A．tied B．injured C．lost D．separated
39．A．secretly B．patiently C．permanently D．accidentally
40．A．remembered B．experienced C．requested D．envisioned
41．A．key B．stone C．medal D．watch
42．A．failed B．stopped C．struggled D．calmed
43．A．destroyed B．packed C．hid D．restored
44．A．created B．discovered C．selected D．demonstrated
45．A．damaging B．building C．digging D．collecting
46．A．take off B．give up C．set off D．show up
47．A．led B．accompanied C．permitted D．forced
48．A．anger B．joy C．coldness D．doubt
49．A．bright B．spacious C．quiet D．messy
50．A．awkward B．unaffordable C．private D．irreplaceable
四、语法填空
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。
In recent years, urban birdwatching 51 (become) a popular outdoor activity among people of all ages. Unlike hiking or camping, it requires no fancy equipment and can be done in local parks, even on the way to work.
A pair of binoculars (双筒望远镜) is 52 (basic) what most beginners need. By watching birds, people can get close to nature without traveling far away. It also helps people develop a 53 (care) attitude towards the small lives around them.
Many cities have set up birdwatching societies 54 organize regular activities for lovers. Experienced birdwatchers are happy to share their knowledge about different bird species 55 living habits. For example, they can tell you which birds stay in the city all year round and which ones only pass by during 56 (they) migration (迁徙).
Watching birds is not just for fun. A report says that the number of birds in a city 57 (reflect) the quality of its natural environment. When more birds are seen, 58 usually means the air and water are getting cleaner.
59 a busy modern lifestyle, taking 30 minutes a week to watch birds is a great way 60 (relax) and slow down your pace of life.
五、所给单词的正确形式变化填空
61．The rainforests are disappearing at an ( alarm) speed.
62．I (intend)to come over to see you, but was prevented from doing so.
63．She concluded her speech by (remind) us of our responsibility.
64．These (measure) are aimed at preventing violent crime.
65．They are in danger of (extinct). So we have to save them.
66．The scientist devoted most of his lifetime to (observe) the behavior of the chimps.
67．My adviser and I devised (想出) a somewhat (usual) solution: I would spend three months in a collaborating (合作的) lab to obtain specialised training.
68．Even worse, some would rather break the law to satisfy their financial desire or seek their fortune (legal) .
69．As far as I am (concern), I have been practicing drums for almost ten years.
70．Nowadays, lack of enough resources greatly (threat) the development of small villages.
六、现在进行时的被动语态语法填空
71．The goal of peace (pursue) by many nations at this very moment.
72．Look! The guests (show) around the factory.
73．The exhibition, which (hold) in the school art gallery now, will last until June 30th.
74．The new science lab (build) these days and will be completed next month.
75．The rare wild animals in the nature reserve (observe) by scientists at present.
76．Look! The invaluable ancient vase (examine) carefully by a group of experts in the laboratory right now and no one is allowed to enter until they finish.
77．Interviews (conduct) in the meeting room now, so please wait outside.
78．You are always making noises! Why must you be so tiresome when the latest sports news (broadcast) on the radio
79．Look! The young trees along the newly-built river path (water) patiently and carefully by a group of warm-hearted volunteers.
80．Located in the heart of Paris, the Louvre is world-famous and about 350, 000 works (display) in over 300 rooms here currently.
参考答案
题号 16 17 18 19 20 21 22 23 24 25
答案 B B C B A C D B A C
题号 26 27 28 29 30 31 32 33 34 35
答案 B D D C A D F A G C
题号 36 37 38 39 40 41 42 43 44 45
答案 A D B C B D A C B D
题号 46 47 48 49 50
答案 B A B C D
1． accommodate accommodation 2． adapt adaptation adaptable 3． alarm alarming alarmed 4． beauty beautiful beautify 5． cruel cruelty cruelly 6． decrease increase increasingly 7． detect detection 8． danger dangerous endanger endangered 9． evolve evolution 10． exist existence existing 11． hunt hunter hunting 12． legal illegal illegally 13． secure security securely 14． threat threaten 15． usual usually unusual
【解析】略
16．B 17．B 18．C
【导语】本文的体裁是一篇记叙文，文章讲述了一只走失的狗莱利在山上被困五周多，最终被哈克特发现并救助的故事。
【详解】16．细节理解题。根据第三段“He thought Riley might have gone looking for his wife Pam, who had died months earlier. When Pam passed away, Riley hid behind the bed for several days.(他认为莱利可能是去找几个月前去世的妻子帕姆了。帕姆去世后，莱利在床后躲了好几天)”可知，莱利对帕姆有感情。故选B。
17．细节理解题。根据第四段“He thought he had to cross the river instead of walking around it, or it would have taken too long(他认为他必须过河而不是绕着河走，否则会花费太长时间)”可知，哈克特选择过河是为了及时照顾莱利。故选B。
18．主旨大意题。根据第一段“Zach Hackett was 12,000 feet up a Colorado mountain last May when he thought he heard a weak sound. As he walked through a clearing, Hackett, 33, found the source: a black-and-white sheepdog(去年五月，扎克·哈克特在科罗拉多州的一座山上，海拔12000英尺的地方，他认为自己听到了一个微弱的声音。当他走过一片空地时，33岁的哈克特找到了声音的来源：一只黑白相间的牧羊犬)”、第三段“He thought Riley might have gone looking for his wife Pam, who had died months earlier. When Pam passed away, Riley hid behind the bed for several days.(他认为莱利可能是去找几个月前去世的妻子帕姆了。帕姆去世后，莱利在床后躲了好几天)”、第四段“He thought he had to cross the river instead of walking around it, or it would have taken too long(他认为他必须过河而不是绕着河走，否则会花费太长时间)”以及最后一段“Riley weighed 24 pounds when he went missing and had lost half of his body weight. “I got this call from the shelter, and they said someone had brought Riley in,” Krugman recalled. “Of course, I cried. Riley’s survival is a wonder.”(莱利失踪时重24磅，现在已经瘦掉一半了。克鲁格曼回忆说：“我接到收容所的电话，他们说有人把莱利送来了。当然，我当时就哭了。莱利能活下来真是个奇迹。”)”可知，文章主要讲述了一只走失的狗莱利在山上被困五周多，最终被哈克特发现并救助的故事，强调了莱利奇迹般的生存。故选C。
19．B 20．A 21．C 22．D
【导语】本文主要介绍了波多黎各一种森林蜥蜴为生存于城市环境，在基因与体态上发生适应性进化改变。
【详解】19．主旨大意题。根据第二段“The team said they discovered the lizard had grown special scales (鳞片) that helped it climb more easily on smooth surfaces like walls and windows. It also grew longer legs in order to run faster across open areas. (研究团队说，他们发现这种蜥蜴长出了特殊的鳞片，帮助它在墙壁和窗户等光滑表面上更容易攀爬。它也长出了更长的腿，以便在开阔地带跑得更快)”可知，第二段主要讲蜥蜴身体发生的变化：特殊鳞片和更长的腿。
20．推理判断题。根据第四段“The study examined 96 Anolis cristatellus lizards. The researchers compared the genetic makeup of lizards in forests to those living in Puerto Rico’s capital, San Juan, as well as two other cities. (这项研究调查了96只Anolis cristatellus蜥蜴。研究人员比较了森林中蜥蜴与生活在波多黎各首都圣胡安及另外两座城市中的蜥蜴的基因构成)”可知，研究者通过比较蜥蜴的基因开展研究。
21．推理判断题。根据第五段“Halfwerk said he was excited that the researchers were able to identify such rich evidence that the lizards had changed genetically to adapt to a different environment. (哈尔夫韦克说，他感到兴奋，因为研究人员能够识别出如此丰富的证据，证明蜥蜴为适应不同环境已经发生了基因改变)”可知，Halfwerk对研究持支持态度。
22．细节理解题。根据最后一段“The study centered on adult male lizards, so it is unclear if females are changing in the same way or at the same rate as males. The researchers said it is also not clear at which point in a lizard’s life the changes happen.(这项研究以成年雄性蜥蜴为中心，所以目前不清楚雌性是否以相同方式或相同速率变化。研究人员也说不清楚变化发生在蜥蜴生命的哪个阶段)”可知，研究尚有不明之处，还需要后续深入探究。
23．B 24．A 25．C 26．B
【导语】本文主要讲述了北极熊巴利尔自幼被送往德国，后进入马戏团常年被迫表演、生存环境恶劣，最终在爱心人士与动物保护组织的关注施压下成功获救的故事。
【详解】23．细节理解题。根据第二段中的“The program tried to move orphaned (孤儿的) baby bears to other countries and make sure they could live a good life.(该项目试图把失去双亲的北极熊幼崽送往其他国家，确保它们能过上优质的生活。)”可知，巴利尔被送往德国是为了得到更好的照顾。
24．细节理解题。根据第三段“For 13 years, Barle and six other polar bears were forced to perform. People did not let Barle run, swim or climb, and she could not find a partner or have baby bears. When there were no shows, Barle and the other bears were kept in a truck with seven small metal rooms.(十三年间，巴利尔和另外六只北极熊被迫进行表演。人们不让巴利尔奔跑、游泳或是攀爬，它也无法找到配偶、繁育幼崽。没有演出的时候，巴利尔和其他北极熊被关在一辆卡车里，卡车设有七个狭小的金属隔间。)”可知，巴利尔在马戏团期间被迫表演、活动空间狭小，生活严苛又艰难。
25．推理判断题。根据第四段“Barle might never have been saved if two Canadians, Ken and Sherri Gigliotti, had not helped. In 1996, the couple traveled to Cozumel, Mexico, and visited the Suarez Brothers Circus (马戏团). They were shocked and saddened by the bears’ poor living conditions. They brought home a program and shared their story with the local newspaper, the Winnipeg Free Press.(如果没有两位加拿大人肯·吉利奥蒂和雪莉·吉利奥蒂伸出援手，巴利尔或许永远无法获救。1996年，这对夫妇来到墨西哥科苏梅尔，参观了苏亚雷斯兄弟马戏团。看到北极熊恶劣的生存环境，他们既震惊又难过。他们带回一份演出宣传册，并把自己的所见所闻告知了当地报纸《温尼伯自由报》。)”、第六段“Leahy made great efforts to save the bears. Later, the Manitoba government passed the Polar Bear Protection Act, which stated that only orphaned baby bears under two years of age were allowed to be put in zoos and that zoos must meet strict standards.(利希为解救这些北极熊付出了诸多努力。此后，曼尼托巴省政府颁布《北极熊保护法案》，法案明确规定，仅两岁以下的孤儿北极熊幼崽可被安置于动物园，且动物园必须符合严格标准。)”以及第七段“Due to mounting pressure from interest groups, the Suarez Brothers Circus finally left their seven polar bears in Puerto Rico and gave them up.(由于各利益团体施加的压力越来越大，苏亚雷斯兄弟马戏团最终把七只北极熊留在了波多黎各并放弃了它们。)”可推知，公众的关注和舆论压力帮助拯救了这些北极熊。
26．推理判断题。根据第三段中的“For 13 years, Barle and six other polar bears were forced to perform.(13年来，巴利尔和另外六只北极熊被迫进行表演。)”、第四段“Barle might never have been saved if two Canadians, Ken and Sherri Gigliotti, had not helped. In 1996, the couple traveled to Cozumel, Mexico, and visited the Suarez Brothers Circus (马戏团). They were shocked and saddened by the bears’ poor living conditions. They brought home a program and shared their story with the local newspaper, the Winnipeg Free Press.(如果没有两位加拿大人肯·吉利奥蒂和雪莉·吉利奥蒂伸出援手，巴利尔或许永远无法获救。1996年，这对夫妇来到墨西哥科苏梅尔，参观了苏亚雷斯兄弟马戏团。看到北极熊恶劣的生存环境，他们既震惊又难过。他们带回一份演出宣传册，并把自己的所见所闻告知了当地报纸《温尼伯自由报》。)”以及第七段“Due to mounting pressure from interest groups, the Suarez Brothers Circus finally left their seven polar bears in Puerto Rico and gave them up.(由于各利益团体施加的压力越来越大，苏亚雷斯兄弟马戏团最终把七只北极熊留在了波多黎各并放弃了它们。)”可知，全文以巴利尔的经历为主线，从在马戏团受虐到最终获救展开叙述。由此可推知，作者写作本文的目的是介绍巴利尔的获救故事。
27．D 28．D 29．C 30．A
【导语】本文主要介绍科学家研究多种动物再生机制，试图将成果运用到人体细胞修复治疗中。
【详解】27．词句猜测题。根据第一段中的“After an injury, some animals can regrow almost every cell in their bodies. Their abilities have long fascinated researchers.(一些动物受伤后，体内几乎所有细胞都能够再生。它们的这项能力一直深深吸引着研究人员)”可知，此处Their指代前文的some animals，abilities指代动物的细胞再生能力。
28．细节理解题。根据第二段中的“A zebrafish can go from being paralyzed (瘫痪的) to moving smoothly. Mayssa Mokalled at Washington University has identified a population of cells which are similar to human fetal astrocytes (星细胞) in the zebrafish that are important for this recovery.(斑马鱼能够从瘫痪状态恢复到正常顺畅活动。华盛顿大学的梅萨·莫卡莱识别出斑马鱼体内一类与人类胎儿星形胶质细胞相似的细胞，这类细胞对斑马鱼的身体恢复至关重要)”可知，斑马鱼体内特定的细胞有助于机体从瘫痪状态中恢复。
29．细节理解题。根据第四段中的“Able to regenerate an entire tail, Lizard is the closest living relative to humans. Humans and lizards share many of the same genes.(蜥蜴可以重新长出整条尾巴，是与人类亲缘关系最近的现存生物之一，人类和蜥蜴拥有许多相同的基因)”可知，阿尔马达研究蜥蜴的原因是蜥蜴与人类拥有相同的基因。
30．推理判断题。根据最后一段中的“Florian Raible, a stem-cell biologist is studying yet another super-recovering animal — Platynereis dumerilii. “It’s a model for good regeneration, because its nervous system has similarities to that of humans, which makes it a relevant model for research.” says Raible.(干细胞生物学家弗洛里安·赖布尔正在研究另一种拥有超强修复能力的生物——杜氏阔沙蚕。赖布尔说：“这是一个优质的再生典范，因为它的神经系统与人类的神经系统有相似之处，这使它成为一个相关的研究模型。”。)”可知，文章依次介绍斑马鱼、蜥蜴的再生研究，末尾刚引出多毛类蠕虫，按照行文逻辑下文会继续讲解该生物的再生具体细节。
31．D 32．F 33．A 34．G 35．C
【导语】本文主要介绍了人工智能应用于野生动物保护中的积极意义。文章旨在引导学生关注野生动物的生存现状、树立动物保护意识，同时培养学生的科技创新兴趣。
【详解】31．上文“Artificial intelligence (人工智能) has been identified as one of the top three rising technologies in conservation (保护), helping protect species around the world.(人工智能已被确定为保护领域三大新兴技术之一，有助于保护世界各地的物种)”指出人工智能有助于保护全球物种。D选项“Conservationists regard AI as a tech solution to saving wild animals (保护主义者将人工智能视为拯救野生动物的技术解决方案)”承接上文，进一步说明保护工作者对人工智能的态度，引出下文对具体应用的介绍，符合语境。
32．上文“Using AI can greatly reduce the physical work used to collect protective data.(使用人工智能可以大大减少用于收集保护数据的体力劳动)”说明人工智能可以帮助减少收集保护数据的体力工作。F选项“AI can identify which photos contain valuable species among thousands of pictures (人工智能能从成千上万张图片中识别出哪些包含珍稀物种)”是减少体力工作的具体表现，且与下文“or find out an animal call from hours of field recordings.(或从数小时的野外记录中找出动物的叫声)”并列，同为人工智能处理海量数据的具体应用，符合语境。
33．下文“Stopping hunting has long been a big challenge. Hunters dress themselves up as fishers to enter the park undiscovered, often under the cover of darkness. AI can check whether there are illegal ships crossing the border and notify the security personnel immediately. It can also enable the security personnel to check out the park around the clock.(长期以来，停止狩猎一直是一个巨大的挑战。猎人们把自己打扮成渔民，不被发现地进入公园，通常是在黑暗的掩护下。人工智能可以检查是否有非法船只越过边境，并立即通知安全人员。它还可以让安保人员全天候检查公园)”整段围绕人工智能如何阻止偷猎展开。A选项“AI can help stop illegal hunters from killing animals (人工智能能帮助阻止非法猎人杀害动物)”准确概括了本段主旨，符合语境。
34．上文“AI can help analyze (分析) water loss, which is important for animal conservation.(人工智能可以帮助分析水分流失，这对动物保护很重要)”以及下文“such as a growing population, economic development and climate (气候) changing.(如人口增长、经济发展和气候变化)”说明人工智能可以帮助分析水分流失，并列举了河流、湖泊和湿地面临的压力来源。G选项“According to research, the pressure of rivers, lakes and wetlands comes from all sides (研究表明，河流、湖泊和湿地的压力来自多方面)”引出下文对具体压力来源的列举，符合语境。
35．下文“and also makes a great contribution to the number of the kinds of animals.(也对动物种类的数量做出了巨大贡献)”说明人工智能对动物种类数量的贡献。C选项“All in all, AI greatly improves the efficiency of animal protection (总之，人工智能极大地提高了动物保护的效率)”对全文进行总结，且与下文“对动物种类数量的贡献”构成递进关系，符合语境。
36．A 37．D 38．B 39．C 40．B 41．D 42．A 43．C 44．B 45．D 46．B 47．A 48．B 49．C 50．D
【导语】文章主要讲述独居的约翰救助受伤浣熊洛基，洛基收藏小物件，最终带领约翰找到丢失古董手表的暖心故事。
【详解】36．考查名词。句意：一天，约翰听到有轻微的抓挠声从他的门上传来。A. door门；B. table桌子；C. window窗户；D. side侧面。根据后文“Opening the door”的动作提示，抓挠声的来源是门。
37．考查名词。句意：站在那里的是一只小浣熊，它正抬头看着他，似乎在寻求帮助。A. shelter庇护；B. permission许可；C. food食物；D. help帮助。根据后文“After examining it, John found one of its feet was _______. He got it into the house and took good care of it”可知，后文提到约翰发现它的脚受伤了，说明小浣熊是在向约翰求助。
38．考查形容词。句意：检查之后，约翰发现它的一只脚受伤了。A. tied被绑住的；B. injured受伤的；C. lost丢失的；D. separated分离的。根据后文“He got it into the house and took good care of it”可知，约翰将它带回家悉心照料，说明小浣熊的状态是脚部受伤。
39．考查副词。句意：日子一天天过去，这只现在被取名为洛基的浣熊永久地和约翰生活在了一起，给约翰带来了乐趣和陪伴感，这是约翰此前从未体验过的。A. secretly秘密地；B. patiently耐心地；C. permanently永久地；D. accidentally意外地。根据后文“providing entertainment and a sense of companionship that John hadn’t”和“Rocky became a(n) ______ part of John’s life.”可知，它给约翰带来了乐趣和陪伴感，它成为了约翰生活里不可替代的部分，说明它长久地留在了约翰身边。
40．考查动词。句意同上。A. remembered记得；B. experienced体验过；C. requested要求；D. envisioned设想。根据前文“John lived alone in a small house away from the noise of city life”和“providing entertainment and a sense of companionship that John hadn’t”可知，约翰此前独自居住，这种有陪伴的感受是他过去没有体验过的。
41．考查名词。句意：一天，约翰的珍贵藏品——一块古董手表不见了。A. key钥匙；B. stone石头；C. medal奖章；D. watch手表。根据后文“But the watch was nowhere to be found”可知，后文提到丢失的物品是手表，对应此处失踪的藏品是古董手表。
42．考查动词。句意：他到处找，但没找到。A. failed失败，未能成功；B. stopped停下；C. struggled挣扎；D. calmed冷静。根据前文“He searched everywhere but”和后文“But the watch was nowhere to be found”可知，约翰翻遍了所有地方，却没能找到丢失的手表，搜寻行动以失败告终。
43．考查动词。句意：然后他意识到很可能是洛基把它藏了起来。A. destroyed毁坏；B. packed打包；C. hid藏起来；D. restored修复。根据后文“As John explored deeper into Rocky’s world, he ______ a pile of hidden treasures. From shiny stones to lost keys”可知，约翰观察洛基的习惯并发现一堆隐藏的宝贝，可知洛基有藏东西的习惯。
44．考查动词。句意：当约翰进一步探索洛基的小世界时，他发现了一堆被藏起来的宝贝。A. created创造；B. discovered发现；C. selected挑选；D. demonstrated展示。根据后文“a pile of hidden treasures”可知，约翰顺着洛基的踪迹，意外找到了一堆被藏匿的小物件。
45．考查动名词。句意：从闪亮的石头到丢失的钥匙，看起来洛基有收集东西的爱好。A. damaging破坏；B. building建造；C. digging挖掘；D. collecting收集。根据前文“As John explored deeper into Rocky’s world, he ______ a pile of hidden treasures”可知，约翰顺着洛基的踪迹，意外找到了一堆被藏匿的小物件，说明洛基有收集小物件的爱好。
46．考查动词短语。句意：就在约翰准备放弃的时候，洛基给了他一个惊喜。A. take off起飞；B. give up放弃；C. set off出发；D. show up出现。根据前文“But the watch was nowhere to be found”和“Just as John was about to”可知，约翰找了很久都没看到手表的踪影，此时他已经快要放弃寻找了。
47．考查动词。句意：它领着约翰来到了一棵空心树旁，在那里的一堆小物件里，就放着那块失踪的手表。A. led带领；B. accompanied陪伴；C. permitted允许；D. forced强迫。根据后文“John to a hollow (中空) tree”可知，洛基主动在前面引路，带着约翰找到了藏手表的地点。
48．考查名词。句意：然后他几乎抑制不住自己的喜悦。A. anger愤怒；B. joy喜悦；C. coldness冷漠；D. doubt怀疑。根据前文“It _______ John to a hollow (中空) tree, and there, among various small articles, was the missing watch.”可知，约翰找回了自己珍贵的古董手表，此刻的情绪是难以掩饰的喜悦。
49．考查形容词。句意：约翰意识到，曾经安静的小屋现在充满了刺激和不可预知性。A. bright明亮的；B. spacious宽敞的；C. quiet安静的；D. messy杂乱的。根据前文“John lived alone in a small house away from the noise of city life”可知，故事开头提到约翰独自住在远离城市喧嚣的小屋里，过去的房子氛围是安静的。
50．考查形容词。句意：洛基成了约翰生活里不可替代的一部分。A. awkward尴尬的；B. unaffordable负担不起的；C. private私人的；D. irreplaceable不可替代的。根据前文“providing entertainment and a sense of companionship that John hadn’t”和“John realized the once ______ house was now filled with excitement and unpredictability”可知，洛基给独居的约翰带来了陪伴和全新的生活乐趣，曾经安静的小屋现在充满了刺激和不可预知性，彻底融入了他的日常，成了无法被取代的存在。
51．has become 52．basically 53．caring/careful 54．which /that 55．and 56．their 57．reflects 58．it 59．Despite/With 60．to relax
【导语】文章主要介绍了近年来城市观鸟成为热门活动，指出其门槛低、能培养爱心并反映环境质量，是现代人放松身心的好方式。
【详解】51．考查动词时态。句意：近年来，城市观鸟已成为各个年龄段人群中一项受欢迎的户外活动。根据时间状语“In recent years”可知，该动作从过去一直持续到现在，应使用现在完成时。主语“urban birdwatching”为不可数名词，助动词用has。
52．考查副词。句意：一副双筒望远镜基本上就是大多数初学者所需要的。此处修饰整个句子或作状语，应用basic的副词形式basically，表示“基本上”。
53．考查形容词。句意：它还有助于人们对周围的小生命培养一种关爱的态度。此处修饰名词attitude，应用care的形容词形式。caring意为“关爱的，体贴的”，careful意为“小心的，仔细的”，两者均符合语境。
54．考查定语从句。句意：许多城市成立了观鸟协会，为爱好者们组织定期活动。设空处引导定语从句，修饰先行词societies，且在从句中作主语，指代物，which或that都符合题意。
55．考查连词。句意：经验丰富的观鸟者很乐意分享他们关于不同鸟类物种及其生活习性的知识。此处“different bird species”与“living habits”为并列关系，应用并列连词and连接。
56．考查代词。句意：例如，他们能告诉你哪些鸟全年留在城市，哪些只在迁徙期间路过。此处修饰名词migration，应用they的形容词性物主代词their，表示“它们的”。
57．考查动词。句意：一份报告称，城市中鸟类的数量反映了其自然环境的质量。根据主句谓语“says”可知，宾语从句陈述的是客观事实，应用一般现在时。从句主语“the number of birds”意为“……的数量”，谓语动词应用第三人称单数形式， reflects符合题意。
58．考查代词。句意：当看到更多的鸟时，这通常意味着空气和水正变得更干净。此处需要一个代词来指代前面“When more birds are seen”整个句子所表达的内容，作主语，应用代词it。
59．考查介词。句意：尽管/在忙碌的现代生活方式下，每周花30分钟观鸟是放松和放慢生活节奏的好方法。根据句意，此处可填入表示让步的介词despite意为“尽管”，或者表示伴随状态的介词with，意为“在……情况下”，该空置于句首，开头单词首字母大写。
60．考查非谓语动词。句意同上。固定搭配“a way to do sth.”意为“做某事的方法”，此处应用动词不定式to relax作后置定语修饰way。
五、所给单词的正确形式变化填空
61．alarming
【详解】考查形容词。句意：热带雨林正在以惊人的速度消失。修饰指物的名词speed用形容词，指“令人担忧的，惊人的”，故填alarming。
62．had intended
【详解】句意：我本打算过来看你，但被阻拦了未能成行。根据后文was prevented可知，此处描述过去的情况，使用had intended to do sth.，表示“本打算做某事（却未做成）”。
63．reminding
【详解】句意：她以提醒我们牢记自身责任的方式结束了演讲。介词by后面需要接动名词作宾语，动词remind的动名词形式是reminding。
64．measures
【详解】句意：这些措施旨在预防暴力犯罪。指示代词These（这些）后面需要接可数名词复数；measure作名词意为“措施”，复数形式为measures。
65．extinction
【详解】句意：它们面临灭绝的危险，因此我们必须拯救它们。空处作介词of的宾语，应用名词形式extinction，意为“灭绝”，为不可数名词。
66．observing
【详解】句意：这位科学家把他一生中的大部分时间都奉献给了观察黑猩猩的行为。devote one’s lifetime to doing sth. 表示“把某人的毕生时间奉献于做某事”，所以用动名词作宾语。
67．unusual
【详解】句意：我和导师想出了一个有些不同寻常的解决方案：我将在合作实验室待三个月接受专业培训。此处为形容词作定语修饰名词solution，结合语境，usual意为“平常的”，此处需要反义词，加前缀un构成unusual，意为“不寻常的”。
68．illegally
【详解】句意：更糟糕的是，有些人宁愿触犯法律，非法地满足自己的金钱欲望或是谋取财富。修饰动词satisfy和seek，需用副词illegally，作状语。
69．concerned
【详解】句意：就我而言，我已经练习打鼓将近十年了。concern“涉及、关心”，是动词，此处需填其形容词化的过去分词concerned，作表语。固定短语as far as I am concerned，表示“就我而言，在我看来”，用于引出说话人的个人观点或情况。
70．threatens
【详解】句意：如今，资源匮乏严重威胁着小村庄的发展。句中缺少谓语动词，threat的动词形式为threaten；根据时间状语Nowadays可知，此句描述的是客观事实，时态为一般现在时，且主语lack of enough resources是单数概念，谓语动词用单数第三人称threatens。
六、现在进行时的被动语态语法填空
71．is being pursued
【详解】 句意：就在此时此刻，许多国家正在追求和平这一目标。空处为句子的谓语动词，根据时间状语“at this very moment”可知，句子应用现在进行时；主语The goal of peace与动词pursue之间为被动关系，所以用现在进行时态的被动语态，主语为单数，故be动词用is。
72．are being shown
【详解】句意：看！客人们在被领着参观工厂。show(带领，引领)是句中谓语动词，与主语The guests之间是被动关系，结合Look!可知，描述正在发生的事情，用现在进行时的被动语态，又因主语是复数名词，谓语也用复数形式，be动词用are，show的过去分词为shown。
73．is being held
【详解】句意：这场当下正在学校美术馆举办的展览将持续至6月30日。从句主语which指代先行词the exhibition，与hold为被动关系；时间标志now表示动作正在进行，故用现在进行时的被动语态，which是单数意义，因此谓语用is being held。
74．is being built
【详解】句意：这座新的科学实验室这些天正在建造中，将于下个月完工。 时间状语these days表示现阶段正在进行的动作，句中主语the new science lab和动词build为被动关系，需使用现在进行时的被动语态，结构为be being done。主语lab是单数，be动词用is，build的过去分词为 built。
75．are being observed
【详解】句意：目前，科学家们正在观察自然保护区里的珍稀野生动物。observe作谓语动词，句中时间状语at present“目前、现在”提示动作正在进行；主语“the rare wild animals”与动词observe之间为被动关系（动物被科学家观察），需用现在进行时的被动语态；主语为复数，填are being observed。
76．is being examined
【详解】动词语态。句意：看！那件珍贵的古花瓶此刻正由一群专家在实验室里被仔细检测，在他们完成之前任何人不得入内。根据Look和right now可知，句子应用现在进行时；主语The invaluable ancient vase与动词examine“检查，检测”之间是被动关系，用现在进行时的被动语态，谓语用is being examined。
77．are being conducted
【详解】句意：面试此刻正在会议室里进行，请在外面等候。本句主语Interviews和动词conduct是被动关系，根据now可知，用现在进行时的被动语态，谓语用are being conducted。
78．is being broadcast
【详解】句意：你总是发出噪音！为什么每次广播最新体育新闻时，你却如此令人厌烦？此处为谓语动词，根据“You are always making noises!”可知，此处表示现在动作正在进行，使用现在进行时态，sports news与broadcast之间为被动关系，所以此处用现在进行时的被动语态，主语news是不可数名词，所以谓语动词为is being broadcast。
79．are being watered
【详解】句意：看！新建河边步道旁的这些小树，正被一群热心志愿者耐心细致地浇灌着。空处为句子谓语，结合“Look!”可知，此处应用现在进行时表示动作正在进行，且主语trees和water是被动关系，故应用现在进行时的被动语态be being watered，主语是复数，be用are。
80．are being displayed
【详解】考查时态语态。句意：卢浮宫位于巴黎市中心，举世闻名，目前这里有大约35万件艺术品在300多个展厅中展出。 所填词放在主语works后作谓语，根据时间状语currently可知，此处表示现阶段正在进行的动作，要用现在进行时；主语works是复数名词，和所给词display之间是被动关系，要用现在进行时的被动语态are being+过去分词displayed。故填are being displayed。

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