Unit3 Environmental Protection单元检测2025-2026学年人教版高中英语选择性必修第三册
第一部分单词练习（共两节，满分30分）
第一节单句语法填空（共10小题；每小题1.5分，满分15分）
1.More and more cities______(take)action to reduce carbon emissions to achieve the double carbon goal by 2026.
2.It is suggested that we______(plant)more trees in our community to improve the living environment.
3.______(realize)the importance of biodiversity protection,our country has built more nature reserves in 2026.
4.The plastic bags______(produce)by this factory are biodegradable and won't pollute the soil.
5.It is the small environmental actions in daily life**______make a big difference to the earth.
6.By the end of 2026,our school______(build)three waste sorting stations for green campus construction.
7.______surprises us most is that many teenagers have become volunteers for environmental protection.
8.The river______(pollute)by industrial waste is now being cleaned up by the local government.
9.If you______(recycle)waste paper and plastic regularly,you can save a lot of natural resources.
10.Environmental protection,**______we all know,is a lifelong task for every person on the earth.
第二节单词拼写（共10小题；每小题1.5分，满分15分）
（根据句意及首字母/汉语提示写单词，单元核心词汇）
11.We should r________(回收)waste materials to reduce the burden on the earth.
12.The air p________(污染)in the city has been greatly improved by planting more green plants.
13.It's everyone's duty to p________(保护)the endangered animals and plants on the earth.
14.We need to save e________(能源)by turning off the lights and computers when we leave the room.
15.The government has made strict l________(法律)to stop people from cutting down trees randomly.
16.Too much plastic waste will h________(伤害)the soil and water resources of the earth.
17.We should use more r________(可再生的)energy such as solar energy and wind energy.
18.The d________(消失)of some species is a big loss to the earth's biodiversity.
19.Planting more trees can i________(改善)the air quality and make our city greener.
20.We should form the habit of waste s________(分类)to make environmental protection more efficient.
第二部分 阅读（共两节，满分 50 分）
第一节 （共 15 小题；每小题 2.5 分，满分 37.5 分） 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
2026 Campus Green Action Initiative
Dear schoolmates,
As the double carbon goal is deeply promoted in 2026,environmental protection has become a common responsibility of all teenagers.Our campus is our second home,but some bad habits are damaging it:random littering,wasting water and electricity,using disposable plastic products.To build a green and low-carbon campus,we launch this initiative and call on all schoolmates to join us!
First,practice waste sorting:sort paper,plastic,glass and kitchen waste into different dustbins.Second,save resources:turn off lights and taps in time,reuse exercise books and avoid disposable chopsticks and plastic bags.Third,plant green plants:take part in the campus tree-planting activity on March 12 and care for the green plants in the school.Fourth,be environmental volunteers:remind others to protect the environment and take part in community environmental protection activities on weekends.
We will hold a"Campus Low-Carbon Week"from April 1 to April 7,including waste sorting competitions,environmental lectures and green handcraft making.Let's start with small things,form green habits,and make our campus a better place!
The Student Union
March 20,2026
21.Which bad habit is NOT mentioned in the initiative
A.Random littering B.Wasting water and electricity
C.Planting green plants D.Using disposable plastic products
22.What activity will be held in the"Campus Low-Carbon Week"
A.Disposable plastic product sales B.Waste sorting competitions
C.Tree-cutting activities D.Water-wasting games
23.What is the main purpose of this initiative
A.To introduce the 2026 double carbon goal B.To call on students to build a green campus
C.To invite students to join the Student Union D.To hold environmental lectures for teachers
B
Last summer vacation,I took part in a rural environmental protection volunteer activity with my classmates.We went to a small village near the city,where the beautiful river by the village had become dirty and smelly because of random littering and domestic waste.The villagers said the river used to be clean,and they even could fish in it,but now no one dared to get close to it.
Our volunteer team decided to clean up the river first.We brought nets,gloves and garbage bags,and spent three days picking up plastic bottles,food boxes and other waste from the river and its banks.At first,the dirty water and bad smell made me want to give up,but when I saw the elderly villagers helping us with smiles,I kept going.We also taught the villagers how to sort waste and told them the harm of littering.
We also planted more than 100 small trees along the river bank.The local government also set up waste sorting dustbins in the village and made a rule to stop littering into the river.After one month,when I went back to the village,the river had become clean again,and some small fish even swam in the water.The villagers held a small party for us and said we had brought the beauty of the river back.
This experience made me realize that environmental protection is not a slogan,but a real action.Everyone's small effort can make the earth a better place,and I will keep being an environmental volunteer forever.
24.Why did the river in the village become dirty and smelly
A.Because of heavy rain and flood B.Because of random littering and domestic waste
C.Because of too many fish in the river D.Because of the dry weather
25.The underlined word"slogan"in Paragraph 4 probably means______.
A.a short phrase to call for action B.a difficult task to finish
C.a beautiful picture of the earth D.a small gift for volunteers
26.What can we infer from the passage
A.The volunteer team cleaned up the river in one day
B.The villagers refused to help the volunteer team
C.The river became clean with the joint efforts of everyone
D.The local government did nothing for the river
27.What is the best title for the passage
A.My Happy Summer Vacation B.A Beautiful Village by the River
C.A Volunteer Activity That Changed the River D.How to Be an Environmental Volunteer
C
Carbon neutrality has become a key environmental topic in 2026,with more and more countries and cities taking practical actions to achieve the goal of"carbon peak and carbon neutrality".Carbon neutrality means that the total amount of carbon dioxide emitted by human activities is balanced with the amount absorbed and fixed,achieving zero net carbon emissions.
There are many effective ways to achieve carbon neutrality in daily life and social development.First,promote low-carbon travel:encourage people to take public transport,ride bikes or walk instead of driving private cars,which can reduce carbon emissions from transportation.Second,develop renewable energy:replace fossil energy such as coal and oil with solar,wind and hydropower,which is the core way to reduce carbon emissions.Third,strengthen waste recycling:recycling waste can save natural resources and reduce carbon emissions from production and processing.Fourth,protect forests and grasslands:forests are the"carbon sink"of the earth,and planting more trees can absorb a lot of carbon dioxide from the air.
However,achieving carbon neutrality still faces some challenges.Some people have weak environmental awareness and still keep high-carbon lifestyles,such as overusing electricity and driving private cars every day.In some poor areas,renewable energy facilities are not perfect,and it is hard to replace fossil energy in a short time.
In fact,carbon neutrality is not a task for a single country or person,but a global common goal.For teenagers,we can start with small low-carbon actions in daily life:saving water and electricity,sorting waste,choosing low-carbon travel.These small actions will gather into a huge force to help achieve the double carbon goal.
In the future,with the joint efforts of the whole world,carbon neutrality will no longer be a distant goal,but a real life state for everyone.
28.What is the core way to reduce carbon emissions according to Paragraph 2
A.Promoting low-carbon travel B.Developing renewable energy
C.Strengthening waste recycling D.Planting more trees
29.What is the main idea of Paragraph 3
A.The ways to achieve carbon neutrality B.The popular environmental topics in 2026
C.The challenges of achieving carbon neutrality D.The meaning of carbon neutrality
30.What can we learn about carbon neutrality from the passage
A.It is a task for a single country B.Forests play an important role in achieving it
C.It has no challenges at all D.Teenagers can do nothing for it
31.What is the author's attitude towards achieving carbon neutrality
A.Negative B.Hopeful C.Doubtful D.Uninterested
D
Biodiversity protection is an important part of environmental protection,and it has drawn global attention in 2026.Biodiversity is the variety of animals,plants and microorganisms on the earth,and it is the foundation of the earth's ecological balance.However,due to human activities such as deforestation,overfishing and industrial pollution,more and more species are becoming endangered or even extinct,which has broken the ecological balance and brought great harm to human survival and development.
First of all,biodiversity protection is essential for the earth's ecological balance.Every species on the earth has its own role—plants produce oxygen and absorb carbon dioxide,animals help with pollination and seed dispersal,and microorganisms decompose waste.If one species disappears,it will affect the whole ecological chain,and even lead to serious ecological disasters.
Secondly,biodiversity protection is closely related to human life.Many plants and animals provide us with food,medicine and raw materials.For example,many Chinese herbal medicines are from wild plants,and many kinds of fish are our important food sources.If these species disappear,human life will be greatly affected.What's more,a variety of species can make the ecosystem more stable,which can help us resist natural disasters such as droughts and floods.
Thirdly,biodiversity protection is a responsibility of all human beings.Some people think that biodiversity protection is the government's work,and it has nothing to do with ordinary people.But this idea is wrong.Ordinary people can also take actions to protect biodiversity:refuse to buy products made from endangered animals,protect the green plants around us,and avoid polluting the natural environment.
In conclusion,biodiversity protection is a lifelong task that cannot be delayed.The government should make stricter laws to protect endangered species and build more nature reserves.Enterprises should stop industrial pollution and develop green production.Teenagers should learn more about biodiversity knowledge and become volunteers for biodiversity protection.Only when the whole society works together can we protect the earth's biodiversity and keep the ecological balance for our future generations.
32.What is the author's main argument in this passage
A.Biodiversity protection is an important part of environmental protection
B.Deforestation is the only reason for species extinction
C.Biodiversity protection has nothing to do with ordinary people
D.Only the government can protect biodiversity
33.Which of the following is NOT a role of species in the ecological chain
A.Plants produce oxygen and absorb carbon dioxide
B.Animals help with pollination and seed dispersal
C.Microorganisms decompose waste
D.Some species cause natural disasters on purpose
34.What can we infer from the passage about biodiversity
A.It is not important for the earth's ecological balance
B.Human activities have damaged it seriously
C.No species are becoming endangered now
D.It has no connection with human life
35.How does the author develop the passage
A.By telling a story B.By listing reasons and responsibilities
C.By making comparisons D.By asking questions
第二节 (共5小题；每小题2.5分，满分12.5分) 根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。
How to Be a Green Teenager for Environmental Protection in 2026
In 2026,environmental protection has become a global trend,and teenagers are an important force for green development.Being a green teenager means taking environmental actions in daily life and making low-carbon living a habit.But how to start environmental protection as a teenager Here are some practical and easy tips for you.
36.______
Waste sorting is the first step of environmental protection.Learn to sort paper,plastic,glass,metal and kitchen waste into different dustbins.You can also make a waste sorting poster for your family and community to teach more people how to sort waste correctly.A small action of sorting can save a lot of natural resources.
Saving resources is a simple but effective way to protect the environment.37.______Turn off the lights,fans and computers when you leave the classroom or your room.Reuse your exercise books by using the blank pages,and bring your own water bottle and cloth bag to avoid disposable products.
38.______Low-carbon travel not only reduces carbon emissions,but also keeps you healthy.You can walk or ride a bike to school if your home is not far.When going out with your family,you can suggest taking public transport such as buses and subways instead of driving a private car.
Protecting the green plants and small animals around you is also a part of environmental protection.39.______Don't pick flowers or leaves in the park,don't hurt small animals such as birds and cats,and plant a small tree in your community on Tree-Planting Day.These small actions can make the environment around you more beautiful.
Being a green teenager is not a one-day thing,but a lifelong habit.40.______Start with small things today,and your environmental actions will make the earth a greener and more beautiful place.Let's be green teenagers and protect our common home together!
A.Learn to sort waste in daily life
B.Choose low-carbon travel in your daily life
C.It needs your persistence and continuous efforts
D.You should save every drop of water and every kilowatt-hour of electricity
E.Environmental protection is only the government's responsibility
F.The earth is our common home and we all need to protect it
G.Green plants and small animals are important parts of the ecosystem
第三部分：语言运用(共两节，满分 30分)
第一节：完型填空(共15小题;每小题 1分，满分15分)
阅读下面短文，从短文后各题所给的 A、B、C 和 D 四个选项中，选出可以填入空白处的最佳选项。
When I was 14 years old,I joined the school's environmental protection club and became a green volunteer.At first,I just thought it was a fun activity,but a trip to a wetland park changed my understanding of environmental protection completely.
The wetland park near our city used to be a beautiful place with lots of birds and plants,but it became dirty 41.______of human littering.The water was muddy,and we could see plastic bags and bottles everywhere on the bank.Many birds 42.______to leave because there was no clean food or water.I felt very sad when I saw this,and I decided to do something 43.______the park.
Our club organized a volunteer activity to clean up the wetland park.We brought garbage bags,gloves and shovels,and 44.______the waste on the bank and in the water for the whole morning.At first,I was tired and wanted to 45.______,but when I saw my classmates working hard,I kept going.We also put up environmental protection posters to 46.______people not to litter.
After the activity,the park became clean again.The local government also set up more waste sorting dustbins and 47.______a rule to protect the wetland.Every weekend,our club goes to the park to check the environment and care for the plants.48.______months,more and more birds came back to the park,and the water became clear again.
This experience made me realize that environmental protection is everyone's 49.______.It's not just about big actions by the government,but also about small efforts by ordinary people.As a teenager,we can do a lot for the environment:sort waste,save resources,and 50.______others to protect the earth.
Now,I am the leader of the school's environmental protection club.We organize different environmental activities every month,such as tree-planting,waste sorting competitions and environmental lectures.More and more students 51.______our club and become green volunteers.We all believe that 52.______everyone takes action,the earth will become greener and more beautiful.
Environmental protection is a lifelong task.53.______we are young,we have the energy and passion to protect the environment.Let's start with small things,form green habits,and make our 54.______to the earth's environmental protection.I believe that with the joint efforts of all teenagers,our common home will be 55.______forever.
41.A.because B.so C.instead D.thanks
42.A.decided B.had C.refused D.stopped
43.A.for B.to C.about D.with
44.A.picked up B.threw away C.looked for D.took out
45.A.keep on B.give up C.stand up D.wake up
46.A.ask B.tell C.warn D.remind
47.A.made B.broke C.changed D.kept
48.A.After B.Before C.In D.For
49.A.right B.duty C.hobby D.dream
50.A.encourage B.stop C.prevent D.force
51.A.leave B.join C.quit D.hate
52.A.if B.unless C.though D.because
53.A.Because B.When C.Although D.As
54.A.contribution B.mistake C.promise D.excuse
55.A.dirty B.ugly C.beautiful D.smelly
第二节：语篇语法填空(10个小题；每小题1.5分，满分15分)
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。
2026 has seen a new round of low-carbon governance in Chinese cities,which aims to build green and livable cities and speed up the achievement of the double carbon goal.Many cities 56.______(start)to carry out a series of low-carbon measures since the beginning of this year.
In many big cities,public transport has been greatly improved.More new energy buses and subways 57.______(put)into use,and bike-sharing systems are more convenient than before.This makes it easier for people 58.______(choose)low-carbon travel and reduce the use of private cars.
In communities,waste sorting has become a daily habit for people.The government 59.______(send)volunteers to teach residents how to sort waste correctly,and many communities have built waste recycling stations.60.______(recycle)waste can not only save resources,but also reduce carbon emissions from waste treatment.
Green space construction is also an important part of low-carbon governance.More parks and green belts 61.______(build)in the center of cities,and many factories have turned their idle land into green areas.These green spaces are the"lungs"of the city,62.______can absorb carbon dioxide and improve the air quality.
A citizen named Wang Lin says:"I ride a bike to work every day now,and I sort waste at home.These small low-carbon actions 63.______(real)make me feel that I am part of environmental protection."
So far,the low-carbon governance measures 64.______(bring)great changes to the cities.The air quality is better,the cities are greener,and people's environmental awareness is higher.We believe that if we keep these low-carbon measures,our cities 65.______(become)more and more beautiful in the future!
第四部分写作（共两节，满分40分）
第一节应用文写作（满分15分）
假定你是李华，校学生会主席，为响应2026双碳目标，学校将开展“绿色校园，低碳生活”主题活动，请你写一封倡议信给全校同学，内容包括：
1.活动背景：双碳目标下，校园环保刻不容缓；
2.具体倡议：垃圾分类、节约资源、低碳出行、爱护绿植；
3.呼吁大家积极参与，共建绿色校园。
注意：1.词数80左右；2.可适当增加细节，使行文连贯；3.开头和结尾已给出，不计入总词数。
Dear schoolmates,
As we are striving for the national double carbon goal in 2026,building a green campus has become an urgent task for all of us
______________________________________________________________________________________________________________________________________________________________
______________________________________________________________________________________________________________________________________________________________
Let's take action now and build a green and low-carbon campus together!
The Student Union
June 10,2026
第二节读后续写（满分25分）
Last month,my family and I watched a 2026 environmental protection documentary about carbon emissions,which made us realize that our daily high-carbon lifestyle was doing great harm to the earth.We used to drive a private car to work and school every day,leave the lights and taps on for a long time,and throw all waste into one dustbin without sorting.We even used a lot of disposable plastic products in our daily life.
After watching the documentary,my parents and I decided to change our lifestyle and live a low-carbon life.We made a detailed low-carbon family plan:my dad would ride a bike to work,my mom and I would walk to school and the supermarket;we would save every drop of water and every kilowatt-hour of electricity;we would learn to sort waste at home and bring cloth bags when shopping;we would also plant some green plants on the balcony.
At first,it was not easy for us to stick to the plan.My dad was used to driving to work,and he felt tired after riding a bike for a week.I wanted to use plastic bags when shopping because they were convenient,and I even forgot to turn off the lights after leaving the room several times.But we didn't blame each other,instead,we reminded and encouraged each other every day.We also made a low-carbon score card,and the one who did the best would get a small reward.
续写要求：
1.续写两段，每段开头已为你写好；
2.内容符合逻辑，情节连贯；
3.词数150左右（两段合计）。
Paragraph 1
Gradually,our family got used to the low-carbon lifestyle and even fell in love with it.
______________________________________________________________________________________________________________________________________________________________
_______________________________________________________________________________Paragraph 2
Our low-carbon life also influenced our neighbors and friends.
______________________________________________________________________________________________________________________________________________________________
_______________________________________________________________________________Unit3 Environmental Protection单元检测2025-2026学年人教版高中英语选择性必修第三册
答案及详细解析
第一部分单词练习（共两节，满分30分）
第一节单句语法填空（共10小题；每小题1.5分，满分15分）
1.are taking 2.(should)plant 3.Having realized 4.produced 5.that
6.will have built 7.What 8.polluted 9.recycle 10.as
第二节单词拼写（共10小题；每小题1.5分，满分15分）
11.recycle 12.pollution 13.protect 14.energy 15.laws
16.harm 17.renewable 18.disappearance 19.improve 20.sorting
第二部分阅读（共两节，满分50分）
第一节阅读理解（共15小题；每小题2.5分，满分37.5分）
21.C 22.B 23.B 24.B 25.A 26.C 27.C 28.B 29.C 30.B
31.B 32.A 33.D 34.B 35.B
第二节七选五（共5小题；每小题2.5分，满分12.5分）
36.A 37.D 38.B 39.G 40.C
第三部分语言运用（共两节，满分30分）
第一节完形填空（共15小题；每小题1分，满分15分）
41.A 42.B 43.A 44.A 45.B 46.D 47.A 48.A 49.B 50.A
51.B 52.A 53.D 54.A 55.C
第二节语篇语法填空（共10小题；每小题1.5分，满分15分）
have started 57.have been put 58.to choose 59.has sent 60.Recycling
61.have been built 62.which 63.really 64.have brought 65.will become
第四部分写作（共两节，满分40分）
第一节应用文写作（满分15分）
参考范文
Dear schoolmates,
As we are striving for the national double carbon goal in 2026,building a green campus has become an urgent task for all of us.To achieve it,we need to take practical actions.First,sort waste into different dustbins strictly in daily life.Second,save water and electricity by turning off taps and lights in time.Third,choose low-carbon travel like walking or riding bikes to school.Fourth,care for all the green plants on campus.
Small actions make a big difference to the environment.Let's take action now and build a green and low-carbon campus together!
The Student Union
June 10,2026
第二节读后续写（满分25分）
参考范文
Paragraph 1
Gradually,our family got used to the low-carbon lifestyle and even fell in love with it.My dad found riding a bike to work was a great way to exercise,and he became much fitter than before.I no longer wanted to use disposable plastic products and even learned to make cloth bags with my mom.Our balcony was filled with green plants we planted,which made our home more lively and beautiful.Every time we checked our low-carbon score card,we were excited to see our scores go up.We all felt proud that we were doing something useful to protect the earth.
Paragraph 2
Our low-carbon life also influenced our neighbors and friends.They noticed our changes and came to ask about our low-carbon plan.We shared our experience and taught them how to sort waste and save resources in daily life.Soon,many neighbors began to ride bikes to work and sort waste at home.Our friends also joined us in planting green plants and taking part in community environmental protection activities.A small change of our family has brought a big influence on people around us.We believe that more and more people will join the low-carbon life and make the earth a greener place.
完整详细解析
第一部分单词练习
第一节单句语法填空
1.are taking：现在进行时表当前正在进行的动作，契合“越来越多城市正为实现双碳目标采取减排行动”的语境，主语cities为复数，故用are taking。
2.(should)plant：It is suggested that...为固定句式，从句需用虚拟语气，谓语动词为(should)+动词原形，should可省略。
3.Having realized：现在分词的完成式，表“意识到”的动作发生在“建设自然保护区”之前，且逻辑主语为our country，与realize为主动关系。
4.produced：过去分词作后置定语，plastic bags与produce为被动关系，表“由这家工厂生产的塑料袋”，省略了which are。
5.that：考查强调句结构It is+被强调部分+that...，此处被强调部分为the small environmental actions in daily life，指物，用that连接。
6.will have built：by the end of 2026是将来完成时的标志，表到2026年底前将完成的动作，结构为will have+过去分词。
7.What：引导主语从句，且在从句中作主语，表“让我们最惊讶的事”，注意首字母大写。
8.polluted：过去分词作后置定语，river与pollute为被动关系，表“被工业废水污染的河流”。
9.recycle：if引导的条件状语从句，主句含情态动词can，从句用一般现在时表将来，主语you为第二人称，用动词原形。
10.as：引导非限制性定语从句，as we all know为固定搭配，意为“众所周知”，as指代整个主句内容。
第二节单词拼写
均为单元核心词汇，结合首字母/汉语提示、句意及词性/形式要求填写，无形式变化的直接填原形：
11.recycle：动词，意为“回收”，should后接动词原形。
12.pollution：名词，意为“污染”，air pollution为固定搭配“空气污染”，不可数。
13.protect：动词，意为“保护”，不定式符号to后接动词原形。
14.energy：不可数名词，意为“能源”，save energy为固定搭配“节约能源”。
15.laws：可数名词复数，意为“法律”，政府制定的法律为多项，故用复数形式。
16.harm：动词，意为“伤害”，will后接动词原形。
17.renewable：形容词，意为“可再生的”，修饰名词energy，构成renewable energy“可再生能源”。
18.disappearance：名词，意为“消失”，the后接名词作主语，由disappear变名词加ance。
19.improve：动词，意为“改善”，can后接动词原形。
20.sorting：名词，意为“分类”，waste sorting为固定搭配“垃圾分类”，动名词作定语。
第二部分阅读
第一节阅读理解
A篇
语篇解读：本文是2026年校学生会发布的校园绿色行动倡议书，开篇指出校园内存在的乱扔垃圾、浪费水电、使用一次性塑料制品等不环保陋习，随后提出垃圾分类、节约资源、种植绿植、担任环保志愿者四项具体行动建议，最后宣布将举办“校园低碳周”系列活动，核心目的是号召全校学生共同建设绿色低碳校园。
21.C：段落定位（Para1：random littering,wasting water and electricity,using disposable plastic products）（乱扔垃圾、浪费水电、使用一次性塑料制品），种植绿植是倡议中提出的环保行动，并非文中提及的陋习。
22.B：段落定位（Para2：including waste sorting competitions,environmental lectures and green handcraft making）（包括垃圾分类比赛、环保讲座和绿色手工制作），为原文直接提及的“校园低碳周”活动内容。
23.B：段落定位（Para1：To build a green and low-carbon campus,we launch this initiative and call on all schoolmates to join us!）（为建设绿色低碳校园，我们发起本倡议并号召全体同学加入我们），此为倡议书发布的核心目的。
B篇
语篇解读：本文为记叙文，讲述作者暑假参与乡村环保志愿活动的亲身经历。村庄旁的河流因乱扔垃圾和生活污水变得脏乱发臭，作者与同学组成志愿队清理河流、教村民垃圾分类，当地政府也配套设置分类垃圾桶、制定禁止向河流扔垃圾的规则，最终河流恢复清澈，作者也由此深刻领悟到“环保不是口号，而是实际行动”的道理。
24.B：段落定位（Para1：where the beautiful river by the village had become dirty and smelly because of random littering and domestic waste）（村庄旁那条美丽的河流因乱扔垃圾和生活污水变得又脏又臭），为原文直接提及的河流变脏发臭的原因。
25.A：结合语境（Para4：environmental protection is not a slogan,but a real action）（环境保护不是一句口号，而是实际的行动），slogan与“实际行动”形成鲜明对比，结合语义可知其意为“号召行动的简短口号”。
26.C：段落定位（Para2-3：志愿者清理河流、教村民垃圾分类；当地政府设分类垃圾桶、定规则；村民参与配合，最终河流变清），可推知河流恢复清澈是志愿者、村民、当地政府所有人共同努力的结果。
27.C：主旨大意题，文章核心围绕作者参与的乡村环保志愿活动展开，该活动直接让原本脏乱的河流发生了根本性改观，此标题最贴合文章核心内容；A项仅提暑假，未涉环保；B项仅提村庄，未提志愿活动；D项侧重方法，非文章主旨。
C篇
语篇解读：本文为说明文，2026年碳中和成为全球核心环保话题。文章先清晰阐释碳中和的定义（人类活动碳排放与吸收固存相平衡，实现净零排放），再介绍低碳出行、发展可再生能源等四种实现碳中和的有效方法，接着分析环保意识薄弱、可再生能源设施不完善等实现过程中的挑战，最后指出碳中和是全球共同目标，青少年的低碳小行动能汇聚成推动目标实现的巨大力量。
28.B：段落定位（Para2：develop renewable energy:replace fossil energy such as coal and oil with solar,wind and hydropower,which is the core way to reduce carbon emissions）（发展可再生能源：用太阳能、风能、水能替代煤炭、石油等化石能源，这是减少碳排放的核心方式），为原文直接提及的减排核心方式。
29.C：主旨大意题，段落定位（Para3：However,achieving carbon neutrality still faces some challenges.）（然而，实现碳中和仍面临一些挑战），该句为段落主题句，整段均围绕实现碳中和的两大具体挑战展开论述。
30.B：段落定位（Para2：Forests are the"carbon sink"of the earth,and planting more trees can absorb a lot of carbon dioxide from the air.）（森林是地球的“碳汇”，多种树能吸收空气中大量的二氧化碳），可知森林在吸收二氧化碳、实现碳中和中起到至关重要的作用。
31.B：观点态度题，段落定位（Para5：In the future,with the joint efforts of the whole world,carbon neutrality will no longer be a distant goal,but a real life state for everyone.）（未来，在全世界的共同努力下，碳中和将不再是遥远的目标，而是每个人的真实生活状态），从“no longer be a distant goal”能明显看出作者对实现碳中和持充满希望的态度。
D篇
语篇解读：本文为议论文，开篇提出核心论点——生物多样性保护是环境保护的重要组成部分，且2026年已引发全球关注。随后分析人类的砍伐森林、过度捕捞、工业污染等活动严重破坏了生物多样性，接着从维护地球生态平衡、关联人类日常生活两方面阐述保护生物多样性的重要性，最后明确政府、企业、青少年等不同主体的保护责任，强调“全社会共同努力才能保护生物多样性、维持生态平衡”的观点。
32.A：主旨论点题，段落定位（Para1：Biodiversity protection is an important part of environmental protection,and it has drawn global attention in 2026.）（生物多样性保护是环境保护的重要组成部分，且在2026年引发了全球关注），此为作者提出的核心论点，后文所有内容均围绕该观点展开论述。
33.D：段落定位（Para2：plants produce oxygen and absorb carbon dioxide,animals help with pollination and seed dispersal,and microorganisms decompose waste.）（植物产生氧气并吸收二氧化碳，动物帮助传粉和传播种子，微生物分解废弃物），文中未提及“物种故意引发自然灾害”，该内容并非物种在生态链中的作用。
34.B：推理判断题，段落定位（Para1：due to human activities such as deforestation,overfishing and industrial pollution,more and more species are becoming endangered or even extinct）（由于砍伐森林、过度捕捞、工业污染等人类活动，越来越多的物种正濒临灭绝甚至已经灭绝），可推知人类活动已对地球的生物多样性造成严重破坏。
35.B：写作手法题，文章先分两点列举保护生物多样性的重要原因（维护生态平衡、与人类生活紧密相关），再分三点列举不同主体的保护责任（政府、企业、青少年），整体采用“列原因+讲责任”的总分式结构展开论述。
第二节七选五
语篇解读：本文为说明文，围绕2026年青少年如何践行环保、成为“绿色少年”这一主题，分点给出具体且易操作的环保建议，依次为垃圾分类、节约资源、低碳出行、爱护身边的绿植和小动物，最后强调成为绿色少年不是一日之事，而是需要坚持的终身习惯，呼吁青少年从点滴小事做起保护地球。
36.A：空后段落核心围绕“垃圾分类的具体做法及意义”展开，此选项“学会在日常生活中垃圾分类”是该段的主题句，总领全段内容，贴合语境。
37.D：空前提出“节约资源是保护环的简单且有效方式”，此选项“你应该节约每一滴水、每一度电”是对“节约资源”的具体阐释，且与空后“及时关灯、关水龙头”的具体做法衔接紧密。
38.B：空后段落围绕“步行、骑车上学，乘坐公共交通出行”等低碳出行方式展开，此选项“在日常生活中选择低碳出行”是该段的主题句，总领全段内容。
39.G：空前提出“爱护身边的绿植和小动物也是环保的一部分”，此选项“绿植和小动物是生态系统的重要组成部分”解释了该做法的原因，且与空后“不摘花、不伤害小动物、植树”的具体爱护行为衔接自然。
40.C：空前指出“成为绿色少年不是一天的事，而是一种终身习惯”，此选项“这需要你的坚持和持续的努力”是对前文的进一步补充说明，贴合“终身习惯”的语义内涵。
第三部分语言运用
第一节完形填空
语篇解读：本文为记叙文，作者14岁加入学校环保俱乐部成为志愿者，一次湿地公园之行彻底改变了其对环保的认知——湿地公园因人类乱扔垃圾变得脏乱，鸟类被迫离开。作者与俱乐部成员开展清理活动，当地政府也配套设置垃圾桶、制定保护规则，最终公园恢复生机。作者由此意识到环保是每个人的责任，如今作为俱乐部负责人，带领更多同学成为环保志愿者，呼吁青少年从点滴小事做起为环保做贡献。
41.A
其他选项翻译：so因此；instead反而，代替；thanks感谢
解析：because of为固定搭配，意为“因为”，表湿地公园变脏的原因，符合语境。
42.B
其他选项翻译：decided决定；refused拒绝；stopped停止
解析：had to意为“不得不”，表鸟类因没有干净的食物和水，被迫离开，符合语境。
43.A
其他选项翻译：to到，向；about关于；with和……一起，用
解析：do something for...为固定搭配，意为“为……做些事”，表作者决定为保护公园采取行动。
44.A
其他选项翻译：threw away扔掉；looked for寻找；took out拿出，取出
解析：picked up意为“捡起，拾起”，表志愿者们捡起河岸和水里的垃圾，符合环保活动的语境。
45.B
其他选项翻译：keep on继续；stand up站起来，起立；wake up醒来，叫醒
解析：give up意为“放弃”，与前文“tired（疲惫的）”呼应，表作者一开始因累想要放弃清理工作。
46.D
其他选项翻译：ask要求，询问；tell告诉；warn警告
解析：remind sb.not to do sth.为固定搭配，意为“提醒某人不要做某事”，张贴环保海报的目的是提醒人们不要乱扔垃圾，语气委婉贴合语境。
47.A
其他选项翻译：broke打破；changed改变；kept保持，保留
解析：make a rule为固定搭配，意为“制定规则”，表当地政府制定了保护湿地的规则，符合语境。
48.A
其他选项翻译：Before在……之前；In在……内（后接将来时间）；For持续（后接时间段）
解析：After months意为“几个月后”，表环保行动结束后的变化，符合“鸟类回归、河水变清”的时间逻辑。
49.B
其他选项翻译：right权利；hobby爱好；dream梦想
解析：duty意为“责任”，表作者通过此次经历意识到“环保是每个人的责任”，为文章的核心感悟。
50.A
其他选项翻译：stop阻止；prevent防止；force强迫
解析：encourage sb.to do sth.为固定搭配，意为“鼓励某人做某事”，表青少年可以鼓励他人保护地球，符合环保宣传的语境。
51.B
其他选项翻译：leave离开；quit放弃，辞职；hate讨厌，憎恨
解析：join意为“加入”，表越来越多的学生加入环保俱乐部，成为绿色志愿者，符合语境。
52.A
其他选项翻译：unless除非；though尽管，虽然；because因为
解析：if引导条件状语从句，意为“如果”，表“如果每个人都采取行动，地球会变得更绿更美”，符合语义逻辑。
53.D
其他选项翻译：Because因为（表直接原因）；When当……的时候；Although尽管，虽然
解析：As意为“因为，由于”，表因果关系，且侧重“因为自身的特质（年轻）而具备某种条件”，贴合“年轻所以有精力和热情做环保”的语境。
54.A
其他选项翻译：mistake错误；promise承诺；excuse借口
解析：make a contribution to...为固定搭配，意为“为……做贡献”，表青少年从点滴小事做起，为地球环保做贡献。
55.C
其他选项翻译：dirty脏的；ugly丑陋的；smelly发臭的
解析：beautiful意为“美丽的”，与前文“公园恢复生机、地球变绿更美”呼应，表作者相信在青少年的共同努力下，家园会永远美丽。
第二节语篇语法填空
语篇解读：本文为说明文，2026年中国城市开启新一轮低碳治理，核心目标是建设绿色宜居城市、加快实现双碳目标。各地从完善公共交通（投放新能源公交、优化共享单车）、推行垃圾分类（志愿者指导、建回收站）、建设绿色空间（建公园绿地、工厂闲置地改绿地）三方面采取低碳措施，这些措施已让城市发生巨大变化（空气质量提升、环保意识增强），作者相信坚持这些措施，城市未来会更美丽。
56.have started：since the beginning of this year是现在完成时的标志，表动作从年初开始持续到现在，主语many cities为复数，故用have started。
57.have been put：new energy buses and subways与put为被动关系，且动作已完成并对现在有影响，用现在完成时的被动语态，主语为复数，故用have been put。
58.to choose：make it+adj.+for sb.to do sth.为固定结构，it为形式宾语，不定式to do为真正的宾语，故填to choose。
59.has sent：政府的“派志愿者指导垃圾分类”这一动作对现在有影响（垃圾分类成日常习惯），用现在完成时，主语the government为单数，故用has sent。
60.Recycling：此处需要动名词作句子主语，表“回收垃圾”这一行为，注意首字母大写。
61.have been built：More parks and green belts与build为被动关系，且动作已完成（城市中心建了更多绿地），用现在完成时的被动语态，主语为复数，故用have been built。
62.which：引导非限制性定语从句，指代前文的These green spaces，且在从句中作主语，指物，用which连接。
63.really：此处需要副词修饰动词make，real的副词形式为really，表“这些低碳小行动真的让我觉得自己是环保的一份子”。
64.have brought：So far是现在完成时的标志，表动作从过去开始到目前为止已完成，主语the low-carbon governance measures为复数，故用have brought。
65.will become：if引导的条件状语从句用一般现在时，主句用一般将来时，表“如果坚持这些措施，城市未来会变得更美丽”，故填will become。
第四部分写作
第一节应用文写作（满分15分）
解题思路步骤
步骤1：明确文体与身份：本文为倡议信，身份是校学生会主席李华，受众为全校同学，语气正式、诚恳，符合倡议书的文体要求。
步骤2：紧扣写作要点：严格按照题目要求写3点内容，①活动背景：2026年双碳目标下，校园环保刻不容缓；②具体倡议：垃圾分类、节约资源、低碳出行、爱护绿植（四点缺一不可，简洁表述）；③呼吁参与：号召同学们行动起来，共建绿色校园。
步骤3：控制词数与结构：词数80左右，开头已给出，无需再写；正文分两部分，先讲背景+具体倡议，再简单呼吁，行文连贯；结尾已给出，直接套用。
步骤4：优化表达：使用简单的衔接词（First/Second/Third/Fourth）让倡议条理清晰；用简单句为主，少量复合句，避免语法错误；加入“Small actions make a big difference”等贴合环保主题的短句，提升文章亮点。
第二节读后续写（满分25分）
解题思路步骤
步骤1：紧扣前文语境：前文讲述作者一家看完环保纪录片后，意识到高碳生活的危害，制定了低碳家庭计划，起初坚持不易，但通过互相提醒、积分奖励的方式坚持了下来，续写需围绕“适应低碳生活+影响身边人”展开，符合逻辑。
步骤2：贴合段落开头：①第一段开头“Gradually,our family got used to the low-carbon lifestyle and even fell in love with it.”，需写家人适应低碳生活后的具体变化和感受（如爸爸骑车健身、自己做布袋、阳台种绿植、积分上涨的成就感）；②第二段开头“Our low-carbon life also influenced our neighbors and friends.”，需写身边人的反应和行动（如邻居询问方法、一起践行低碳、朋友参与环保活动）。
步骤3：保证情节连贯：续写内容要与前文的“低碳计划”（骑车、节水节电、垃圾分类、不用一次性制品、种绿植）呼应，不新增无关情节，且两段之间衔接自然（自己家的变化→影响身边人→更多人参与低碳）。
步骤4：控制词数与表达：两段合计150词左右，每段70-80词；用一般过去时为主，适当用现在完成时；加入心理描写（proud/excited）和细节描写（make cloth bags/plant green plants），让文章更生动；结尾升华主题，体现“低碳生活的感染力”，贴合环保主题。
