Unit 2 Period 3 Discovering Useful Structures（分层作业）英语人教版必修第二册

分层作业 Unit 2 Period 3 Discovering Useful Structure 目 录 A组 巩固过关 B组 能力进阶 C组 思维拔高 拓展 链接高考 一、用所给词的适当形式填空（注意现在进行时的被动语态） 1．Look! The elephants _______________ (hunt) by hunters right now. 2．Many rare species _______________ (threaten) at present. 3．The forest _______________ (destroy) for a new road these days. 4．A new report on wildlife _______________ (write) by the scientist now. 5．The injured birds _______________ (take) care of by volunteers at the moment. 6．More laws _______________ (make) to protect endangered animals currently. 7．Listen! The plan for the new reserve _______________ (discuss) in the meeting room. 8．The river _______________ (pollute) by factory waste these weeks. 9．The habitats of wild animals _______________ (reduce) rapidly due to human activities. 10．New nature reserves _______________ (build) in this area these years. 【答案】 1．are being hunted 2．are being threatened 3．is being destroyed 4．is being written 5．are being taken 6．are being made 7．is being discussed 8．is being polluted 9．are being reduced 10．are being built 【解析】 1．句意：看！大象此刻正在被猎人猎杀。时间状语"right now"提示用现在进行时，主语"elephants"为复数，与hunt之间为被动关系，故填are being hunted。 2．句意：许多稀有物种目前正受到威胁。时间状语"at present"提示用现在进行时，主语"species"为复数，与threaten之间为被动关系，故填are being threatened。 3．句意：这些天森林正在被砍伐以修建一条新路。时间状语"these days"提示用现在进行时，主语"forest"为单数，与destroy之间为被动关系，故填is being destroyed。 4．句意：这位科学家现在正在写一份关于野生动物保护的新报告。时间状语"now"提示用现在进行时，主语"report"为单数，与write之间为被动关系，故填is being written。 5．句意：受伤的鸟儿此刻正在被志愿者照顾。时间状语"at the moment"提示用现在进行时，主语"birds"为复数，与take之间为被动关系，故填are being taken。 6．句意：目前正在制定更多法律来保护濒危动物。时间状语"currently"提示用现在进行时，主语"laws"为复数，与make之间为被动关系，故填are being made。 7．句意：听！新保护区的计划正在会议室里被讨论。"Listen"提示用现在进行时，主语"plan"为单数，与discuss之间为被动关系，故填is being discussed。 8．句意：这几周河流正在被工厂废物污染。时间状语"these weeks"提示用现在进行时，主语"river"为单数，与pollute之间为被动关系，故填is being polluted。 9．句意：由于人类活动，野生动物的栖息地正在迅速减少。主语"habitats"为复数，与reduce之间为被动关系，故填are being reduced。 10．句意：这些年来该地区正在建设新的自然保护区。时间状语"these years"提示用现在进行时，主语"reserves"为复数，与build之间为被动关系，故填are being built。 二、将下列句子改为被动语态 1．People are hunting African elephants. → African elephants _____________________________________________. 2．Volunteers are protecting the habitat of wild birds. → The habitat of wild birds _____________________________________________. 3．The government is taking measures to stop illegal hunting. → Measures _____________________________________________ to stop illegal hunting. 4．Scientists are studying ways to help these species recover. → Ways _____________________________________________ to help these species recover. 5．The zookeeper is feeding the injured animals now. → The injured animals _____________________________________________ by the zookeeper now. 6．People are cutting down trees in the forest these days. → Trees _____________________________________________ in the forest these days. 7．The police are investigating the illegal trade. → The illegal trade _____________________________________________ by the police. 8．We are raising public awareness through education. → Public awareness _____________________________________________ through education. 【答案】 1．are being hunted 2．is being protected 3．are being taken 4．are being studied 5．are being fed 6．are being cut down 7．is being investigated 8．is being raised 【解析】 1．原句为现在进行时的主动语态，变为被动语态时，将宾语"African elephants"变为主语，谓语变为"are being hunted"，原主语"People"变为by的宾语（可省略）。故填are being hunted。 2．原句宾语"habitat"为单数，变为主语后谓语用is being protected。故填is being protected。 3．原句宾语"Measures"为复数，变为主语后谓语用are being taken。故填are being taken。 4．原句宾语"Ways"为复数，变为主语后谓语用are being studied。故填are being studied。 5．原句宾语"animals"为复数，变为主语后谓语用are being fed。故填are being fed。 6．原句宾语"Trees"为复数，变为主语后谓语用are being cut down。故填are being cut down。 7．原句宾语"trade"为单数，变为主语后谓语用is being investigated。故填is being investigated。 8．原句宾语"awareness"为不可数名词，变为主语后谓语用is being raised。故填is being raised。 三、根据汉语提示完成句子（每空一词） 1．Right now, the rare birds __________________________ (正在被保护) by the reserve workers. 2．The old forest __________________________ (正在被砍伐) for a new road at present. 3．Many endangered species __________________________ (正在受到威胁) by human activities these days. 4．A new nature reserve __________________________ (正在被建造) in our city currently. 5．The injured panda __________________________ (正在被照料) by the veterinarians now. 6．More educational programs __________________________ (正在被组织) in schools to raise awareness. 7．The illegal hunting __________________________ (正在被调查) by the police at the moment. 8．The animals' habitats __________________________ (正在被破坏) due to urban development. 【答案】 1．are being protected 2．is being cut down 3．are being threatened 4．is being built 5．is being taken care of 6．are being organized 7．is being investigated 8．are being destroyed 【解析】 1．主语"birds"为复数，与protect之间为被动关系，时间状语"Right now"提示用现在进行时被动语态，故填are being protected。 2．主语"forest"为单数，与cut down之间为被动关系，时间状语"at present"提示用现在进行时被动语态，故填is being cut down。 3．主语"species"为复数，与threaten之间为被动关系，时间状语"these days"提示用现在进行时被动语态，故填are being threatened。 4．主语"reserve"为单数，与build之间为被动关系，时间状语"currently"提示用现在进行时被动语态，故填is being built。 5．主语"panda"为单数，与take care of之间为被动关系，时间状语"now"提示用现在进行时被动语态，注意take care of为固定短语，变被动时of不可省略，故填is being taken care of。 6．主语"programs"为复数，与organize之间为被动关系，故填are being organized。 7．主语"hunting"为单数，与investigate之间为被动关系，时间状语"at the moment"提示用现在进行时被动语态，故填is being investigated。 8．主语"habitats"为复数，与destroy之间为被动关系，故填are being destroyed。 四、语法填空 （2024·广东广州·高一期末）In many parts of the world, wildlife 1. _______________ (threaten) by human activities every day. Look! Over there, a group of elephants 2. _______________ (hunt) by poachers（偷猎者）right now. The situation is very serious. In our country, many measures 3. _______________ (take) to protect endangered species currently. More nature reserves 4. _______________ (build) to provide safe habitats for wild animals. Volunteers 5. _______________ (send) to different areas to watch over the animals day and night. However, some problems remain. The forests 6. _______________ (cut) down at an alarming rate these years. As a result, the habitats of many species 7. _______________ (destroy). Rivers and lakes 8. _______________ (pollute) by factory waste, which harms the animals living in or near the water. But there is good news too. Public awareness 9. _______________ (raise) through education and media campaigns. More people 10. _______________ (educate) about the importance of wildlife protection. Scientists 11. _______________ (study) new ways to help endangered species recover. ZhaXi, a guide from the reserve, says, "We 12. _______________ (try) to save the animals, but actually we are trying to save ourselves." His words remind us that only when we learn to exist in harmony with nature can we stop being a threat to wildlife and to our planet. 【答案】 1．is being threatened 2．are being hunted 3．are being taken 4．are being built 5．are being sent 6．are being cut 7．are being destroyed 8．are being polluted 9．is being raised 10．are being educated 11．are studying 12．are trying 【解析】 1．句意：在世界许多地方，野生动物每天都在受到人类活动的威胁。"every day"暗示现阶段反复发生，主语"wildlife"为单数不可数名词，与threaten之间为被动关系，故填is being threatened。 2．句意：看！那边有一群大象正在被偷猎者猎杀。"right now"和时间状语"Look!"提示用现在进行时，主语"elephants"为复数，与hunt之间为被动关系，故填are being hunted。 3．句意：我国目前正在采取许多措施来保护濒危物种。时间状语"currently"提示用现在进行时，主语"measures"为复数，与take之间为被动关系，故填are being taken。 4．句意：正在建设更多的自然保护区来为野生动物提供安全的栖息地。主语"reserves"为复数，与build之间为被动关系，故填are being built。 5．句意：志愿者正被派往不同地区日夜守护动物。主语"volunteers"为复数，与send之间为被动关系，故填are being sent。 6．句意：这些年来森林正在以惊人的速度被砍伐。"these years"提示用现在进行时，主语"forests"为复数，与cut之间为被动关系，故填are being cut。 7．句意：因此，许多物种的栖息地正在被破坏。主语"habitats"为复数，与destroy之间为被动关系，故填are being destroyed。 8．句意：河流和湖泊正在被工厂废物污染。主语"rivers and lakes"为复数，与pollute之间为被动关系，故填are being polluted。 9．句意：公众意识正在通过教育和媒体宣传活动被提高。主语"awareness"为不可数名词，与raise之间为被动关系，故填is being raised。 10．句意：越来越多的人正在接受关于野生动物保护重要性的教育。主语"people"为复数，与educate之间为被动关系，故填are being educated。 11．句意：科学家们正在研究帮助濒危物种恢复的新方法。此处描述科学家正在进行的主动动作，应用现在进行时主动语态，故填are studying。 12．句意：我们正在努力拯救动物，但实际上我们是在努力拯救我们自己。此处为直接引语，描述正在进行的主动动作，应用现在进行时主动语态，故填are trying。 五、短文改错 下面短文中有10处语言错误，每处错误仅涉及一个单词的增加、删除或修改 Wildlife around the world are being threaten by human activities. In many places, forests are being cut down, that means animals' habitats are being destroy. At the same time, rivers and lakes is being polluted by factory waste. As a result, many species are being push to the brink of extinction. Therefore, there is still hope. New nature reserves are being create to provide safe homes for endangered animals. More laws are being made protect wildlife. Volunteers are being send to different areas to watch over the animals. Scientists are study ways to help these species recover. Public awareness is also being raised through education. People are being encourage to take part in conservation efforts. It is clear that positive actions are being take. Only when we learn to exist in harmony with nature can we stop being a threat to wildlife and to our planet. 【答案】 1．threaten → threatened 2．that → which 3．destroy → destroyed 4．is → are 5．push → pushed 6．Therefore → However 7．create → created 8．made后加to 9．send → sent 10．study → studying 11．encourage → encouraged 12．take → taken 【解析】 1．"are being threatened"为现在进行时被动语态，过去分词应为threatened。 2．此处为非限制性定语从句，指代前面整句话，应用which引导，that不能引导非限制性定语从句。 3．"are being destroyed"为被动语态，destroy的过去分词为destroyed。 4．主语"rivers and lakes"为复数，be动词应用are，故is改为are。 5．"are being pushed"为被动语态，push的过去分词为pushed。 6．前后句为转折关系，前文描述威胁，后文描述希望，故Therefore改为However。 7．"are being created"为被动语态，create的过去分词为created。 8．"made to protect"中不定式作目的状语，需要加to。 9．"are being sent"为被动语态，send的过去分词为sent。 10．"are studying"为现在进行时主动语态，应用studying。 11．"are being encouraged"为被动语态，encourage的过去分词为encouraged。 12．"are being taken"为被动语态，take的过去分词为taken。 六、阅读理解（2025·山东济南·高一质检） The Siberian tiger, also known as the Amur tiger, is one of the rarest animals in the world. Found mainly in the forests of far eastern Russia and northeastern China, this magnificent creature has been facing a serious threat from poaching（偷猎）and habitat loss. In recent years, however, things are changing. More effective protection measures are being carried out in both countries. In China, new nature reserves are being established in the tiger's habitats. Special patrol teams are being organized to prevent poaching. Cameras are being set up in the forests to monitor the tigers' movements and track their population. At the same time, the local communities are being educated about the importance of tiger protection. These efforts are paying off. According to recent surveys, the population of Siberian tigers in China has increased gradually. More tiger cubs（幼崽）are being born in the wild, and the tigers' habitats are being expanded. Yet challenges remain. Climate change is affecting the tigers' food supply, and roads and railways are being built through their habitats, which disturbs their lives. Conservationists are calling for more international cooperation to ensure the long-term survival of this species. "The tiger is being pushed to the edge," says Dr. Li Ming, a wildlife expert. "But it is not too late to save it. More action is being taken now than ever before. We are on the right track." 1．What is the main threat to the Siberian tiger mentioned in the passage? A．Climate change and lack of food. B．Poaching and habitat loss. C．Diseases and natural disasters. D．Lack of water and pollution. 2．What measures are being taken to protect the Siberian tiger in China? ① More nature reserves are being built. ② Special patrol teams are being organized. ③ Cameras are being set up to monitor the tigers. ④ More tigers are being raised in zoos. ⑤ Local communities are being educated. A．①②③④ B．①②③⑤ C．②③④⑤ D．①③④⑤ 3．What does the underlined phrase "paying off" in Paragraph 3 mean? A．Being costly. B．Being successful. C．Being completed. D．Being delayed. 4．What is Dr. Li Ming's attitude towards the protection of the Siberian tiger? A．Hopeless and worried. B．Confident but cautious. C．Uninterested and indifferent. D．Doubtful and disappointed. 5．What can be inferred from the last paragraph? A．The Siberian tiger will soon become extinct. B．The protection efforts are making a difference. C．Siberian tigers are no longer endangered. D．International cooperation is not needed. 【答案与解析】 1．B 细节理解题。根据第一段最后一句"this magnificent creature has been facing a serious threat from poaching and habitat loss"可知，西伯利亚虎面临的主要威胁是偷猎和栖息地丧失。故选B。 2．B 细节理解题。根据第二段可知，中国采取了以下措施：建立新的自然保护区（①）、组织专门的巡逻队（②）、设置相机监测老虎（③）、教育当地社区（⑤）。④"在动物园饲养更多老虎"文中未提及。故选B。 3．B 词义猜测题。根据第三段下文"the population of Siberian tigers in China has increased gradually. More tiger cubs are being born in the wild"可知，保护措施正在取得成效，故"paying off"意为"取得成功，有成效"。故选B。 4．B 观点态度题。根据最后一段Dr. Li Ming的话"it is not too late to save it. More action is being taken now than ever before. We are on the right track."可知，他既对保护工作有信心，同时也保持谨慎，因为"the tiger is being pushed to the edge"。故选B。 5．B 推理判断题。根据最后一段"More action is being taken now than ever before. We are on the right track."可以推断，保护工作正在产生积极影响，我们走在正确的道路上。故选B。 一、语法填空（2023·新高考全国Ⅰ卷改编） Xiao long bao (soup dumplings), those amazing constructions of delicate dumpling wrappers, encasing hot, 1. _______________ (taste) soup and sweet, fresh meat, are far and away my favorite Chinese street food. The dumplings 2. _______________ (eat) at the moment by many customers in the restaurant. The steam 3. _______________ (rise) from the bamboo baskets, creating a warm and inviting atmosphere. Each dumpling 4. _______________ (prepare) with great care by the skilled chefs, ensuring the perfect balance of flavors. The restaurant 5. _______________ (crowd) with people who come to enjoy this delicious delicacy. Many tables 6. _______________ (occupy) by families and friends sharing a meal together. A new batch（批）of dumplings 7. _______________ (steam) in the kitchen right now. The chefs 8. _______________ (work) quickly to meet the high demand. The popularity of this dish 9. _______________ (grow) steadily over the past few years. It 10. _______________ (consider) one of the must-try foods for visitors to the city. 【答案】 1．tasty 2．are being eaten 3．is rising 4．is prepared 5．is crowded 6．are being occupied 7．is being steamed 8．are working 9．has grown 10．is considered 【解析】 1．句意：小笼包，那些精致的饺子皮包裹着热乎乎的、美味的汤和鲜甜的肉。此处应用形容词作定语修饰"soup"，故填tasty。 2．句意：此刻很多顾客正在餐厅里吃这些饺子。主语"dumplings"为复数，与eat之间为被动关系，时间状语"at the moment"提示用现在进行时被动语态，故填are being eaten。 3．句意：蒸汽正从竹蒸笼中升起。此处描述正在进行的动作，应用现在进行时主动语态，主语"steam"为单数，故填is rising。 4．句意：每个饺子都被熟练的厨师精心准备。此处描述一般情况，应用一般现在时被动语态，主语"dumpling"为单数，故填is prepared。 5．句意：餐厅里挤满了来享用这道美味佳肴的人们。"be crowded with"为固定搭配，描述当前状态，应用一般现在时，故填is crowded。 6．句意：许多桌子正在被家庭和朋友占用，一起分享美食。主语"tables"为复数，与occupy之间为被动关系，且描述当前正在发生的事，故填are being occupied。 7．句意：新的一批饺子此刻正在厨房里被蒸。主语"batch"为单数，与steam之间为被动关系，时间状语"right now"提示用现在进行时被动语态，故填is being steamed。 8．句意：厨师们正在快速工作以满足高需求。此处描述正在进行的主动动作，应用现在进行时主动语态，主语"chefs"为复数，故填are working。 9．句意：这道菜的受欢迎程度在过去几年稳步增长。时间状语"over the past few years"提示用现在完成时，主语"popularity"为单数，故填has grown。 10．句意：它被认为是游客到这座城市必尝的食物之一。此处描述客观事实，应用一般现在时被动语态，主语"It"为单数，故填is considered。 4 / 8 学科网（北京）股份有限公司 $ 分层作业 Unit 2 Period 3 Discovering Useful Structure 目 录 A组 巩固过关 B组 能力进阶 C组 思维拔高 拓展 链接高考 一、用所给词的适当形式填空（注意现在进行时的被动语态） 1．Look! The elephants _______________ (hunt) by hunters right now. 2．Many rare species _______________ (threaten) at present. 3．The forest _______________ (destroy) for a new road these days. 4．A new report on wildlife _______________ (write) by the scientist now. 5．The injured birds _______________ (take) care of by volunteers at the moment. 6．More laws _______________ (make) to protect endangered animals currently. 7．Listen! The plan for the new reserve _______________ (discuss) in the meeting room. 8．The river _______________ (pollute) by factory waste these weeks. 9．The habitats of wild animals _______________ (reduce) rapidly due to human activities. 10．New nature reserves _______________ (build) in this area these years. 二、将下列句子改为被动语态 1．People are hunting African elephants. → African elephants _____________________________________________. 2．Volunteers are protecting the habitat of wild birds. → The habitat of wild birds _____________________________________________. 3．The government is taking measures to stop illegal hunting. → Measures _____________________________________________ to stop illegal hunting. 4．Scientists are studying ways to help these species recover. → Ways _____________________________________________ to help these species recover. 5．The zookeeper is feeding the injured animals now. → The injured animals _____________________________________________ by the zookeeper now. 6．People are cutting down trees in the forest these days. → Trees _____________________________________________ in the forest these days. 7．The police are investigating the illegal trade. → The illegal trade _____________________________________________ by the police. 8．We are raising public awareness through education. → Public awareness _____________________________________________ through education. 三、根据汉语提示完成句子（每空一词） 1．Right now, the rare birds __________________________ (正在被保护) by the reserve workers. 2．The old forest __________________________ (正在被砍伐) for a new road at present. 3．Many endangered species __________________________ (正在受到威胁) by human activities these days. 4．A new nature reserve __________________________ (正在被建造) in our city currently. 5．The injured panda __________________________ (正在被照料) by the veterinarians now. 6．More educational programs __________________________ (正在被组织) in schools to raise awareness. 7．The illegal hunting __________________________ (正在被调查) by the police at the moment. 8．The animals' habitats __________________________ (正在被破坏) due to urban development. 四、语法填空 （2024·广东广州·高一期末）In many parts of the world, wildlife 1. _______________ (threaten) by human activities every day. Look! Over there, a group of elephants 2. _______________ (hunt) by poachers（偷猎者）right now. The situation is very serious. In our country, many measures 3. _______________ (take) to protect endangered species currently. More nature reserves 4. _______________ (build) to provide safe habitats for wild animals. Volunteers 5. _______________ (send) to different areas to watch over the animals day and night. However, some problems remain. The forests 6. _______________ (cut) down at an alarming rate these years. As a result, the habitats of many species 7. _______________ (destroy). Rivers and lakes 8. _______________ (pollute) by factory waste, which harms the animals living in or near the water. But there is good news too. Public awareness 9. _______________ (raise) through education and media campaigns. More people 10. _______________ (educate) about the importance of wildlife protection. Scientists 11. _______________ (study) new ways to help endangered species recover. ZhaXi, a guide from the reserve, says, "We 12. _______________ (try) to save the animals, but actually we are trying to save ourselves." His words remind us that only when we learn to exist in harmony with nature can we stop being a threat to wildlife and to our planet. 五、短文改错 下面短文中有10处语言错误，每处错误仅涉及一个单词的增加、删除或修改 Wildlife around the world are being threaten by human activities. In many places, forests are being cut down, that means animals' habitats are being destroy. At the same time, rivers and lakes is being polluted by factory waste. As a result, many species are being push to the brink of extinction. Therefore, there is still hope. New nature reserves are being create to provide safe homes for endangered animals. More laws are being made protect wildlife. Volunteers are being send to different areas to watch over the animals. Scientists are study ways to help these species recover. Public awareness is also being raised through education. People are being encourage to take part in conservation efforts. It is clear that positive actions are being take. Only when we learn to exist in harmony with nature can we stop being a threat to wildlife and to our planet. 六、阅读理解（2025·山东济南·高一质检） The Siberian tiger, also known as the Amur tiger, is one of the rarest animals in the world. Found mainly in the forests of far eastern Russia and northeastern China, this magnificent creature has been facing a serious threat from poaching（偷猎）and habitat loss. In recent years, however, things are changing. More effective protection measures are being carried out in both countries. In China, new nature reserves are being established in the tiger's habitats. Special patrol teams are being organized to prevent poaching. Cameras are being set up in the forests to monitor the tigers' movements and track their population. At the same time, the local communities are being educated about the importance of tiger protection. These efforts are paying off. According to recent surveys, the population of Siberian tigers in China has increased gradually. More tiger cubs（幼崽）are being born in the wild, and the tigers' habitats are being expanded. Yet challenges remain. Climate change is affecting the tigers' food supply, and roads and railways are being built through their habitats, which disturbs their lives. Conservationists are calling for more international cooperation to ensure the long-term survival of this species. "The tiger is being pushed to the edge," says Dr. Li Ming, a wildlife expert. "But it is not too late to save it. More action is being taken now than ever before. We are on the right track." 1．What is the main threat to the Siberian tiger mentioned in the passage? A．Climate change and lack of food. B．Poaching and habitat loss. C．Diseases and natural disasters. D．Lack of water and pollution. 2．What measures are being taken to protect the Siberian tiger in China? ① More nature reserves are being built. ② Special patrol teams are being organized. ③ Cameras are being set up to monitor the tigers. ④ More tigers are being raised in zoos. ⑤ Local communities are being educated. A．①②③④ B．①②③⑤ C．②③④⑤ D．①③④⑤ 3．What does the underlined phrase "paying off" in Paragraph 3 mean? A．Being costly. B．Being successful. C．Being completed. D．Being delayed. 4．What is Dr. Li Ming's attitude towards the protection of the Siberian tiger? A．Hopeless and worried. B．Confident but cautious. C．Uninterested and indifferent. D．Doubtful and disappointed. 5．What can be inferred from the last paragraph? A．The Siberian tiger will soon become extinct. B．The protection efforts are making a difference. C．Siberian tigers are no longer endangered. D．International cooperation is not needed. 一、语法填空（2023·新高考全国Ⅰ卷改编） Xiao long bao (soup dumplings), those amazing constructions of delicate dumpling wrappers, encasing hot, 1. _______________ (taste) soup and sweet, fresh meat, are far and away my favorite Chinese street food. The dumplings 2. _______________ (eat) at the moment by many customers in the restaurant. The steam 3. _______________ (rise) from the bamboo baskets, creating a warm and inviting atmosphere. Each dumpling 4. _______________ (prepare) with great care by the skilled chefs, ensuring the perfect balance of flavors. The restaurant 5. _______________ (crowd) with people who come to enjoy this delicious delicacy. Many tables 6. _______________ (occupy) by families and friends sharing a meal together. A new batch（批）of dumplings 7. _______________ (steam) in the kitchen right now. The chefs 8. _______________ (work) quickly to meet the high demand. The popularity of this dish 9. _______________ (grow) steadily over the past few years. It 10. _______________ (consider) one of the must-try foods for visitors to the city. 4 / 8 学科网（北京）股份有限公司 $ 分层作业 Unit 2 Period 3 Discovering Useful Structure 一、【答案】 1．are being hunted 2．are being threatened 3．is being destroyed 4．is being written 5．are being taken 6．are being made 7．is being discussed 8．is being polluted 9．are being reduced 10．are being built 二、【答案】 1．are being hunted 2．is being protected 3．are being taken 4．are being studied 5．are being fed 6．are being cut down 7．is being investigated 8．is being raised 三、【答案】 1．are being protected 2．is being cut down 3．are being threatened 4．is being built 5．is being taken care of 6．are being organized 7．is being investigated 8．are being destroyed 4、 【答案】 1．is being threatened 2．are being hunted 3．are being taken 4．are being built 5．are being sent 6．are being cut 7．are being destroyed 8．are being polluted 9．is being raised 10．are being educated 11．are studying 12．are trying 五、【答案】 1．threaten → threatened 2．that → which 3．destroy → destroyed 4．is → are 5．push → pushed 6．Therefore → However 7．create → created 8．made后加to 9．send → sent 10．study → studying 11．encourage → encouraged 12．take → taken 六、【答案与解析】 1．B 细节理解题。根据第一段最后一句"this magnificent creature has been facing a serious threat from poaching and habitat loss"可知，西伯利亚虎面临的主要威胁是偷猎和栖息地丧失。故选B。 2．B 细节理解题。根据第二段可知，中国采取了以下措施：建立新的自然保护区（①）、组织专门的巡逻队（②）、设置相机监测老虎（③）、教育当地社区（⑤）。④"在动物园饲养更多老虎"文中未提及。故选B。 3．B 词义猜测题。根据第三段下文"the population of Siberian tigers in China has increased gradually. More tiger cubs are being born in the wild"可知，保护措施正在取得成效，故"paying off"意为"取得成功，有成效"。故选B。 4．B 观点态度题。根据最后一段Dr. Li Ming的话"it is not too late to save it. More action is being taken now than ever before. We are on the right track."可知，他既对保护工作有信心，同时也保持谨慎，因为"the tiger is being pushed to the edge"。故选B。 5．B 推理判断题。根据最后一段"More action is being taken now than ever before. We are on the right track."可以推断，保护工作正在产生积极影响，我们走在正确的道路上。故选B。 （2023·新高考全国Ⅰ卷改编） 【答案】 1．tasty 2．are being eaten 3．is rising 4．is prepared 5．is crowded 6．are being occupied 7．is being steamed 8．are working 9．has grown 10．is considered 4 / 8 学科网（北京）股份有限公司 $