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Unit 9 Human Biology单元练习-2025-2026学年北师大版高中英语选择性必修第三册
（本试卷满分150分，考试时间120分钟）
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）
在空白处填入1个适当的单词或括号内单词的正确形式。
1.Studying human biology______(help)us understand how the human body works and stays healthy.
2.The new research,______(conduct)by top scientists,has made a breakthrough in brain science.
3.It is the balanced diet and regular exercise______keep our biological system in good condition.
4.Many teenagers lack sleep,______has a bad effect on their physical and mental development.
5.By the time we finish this course,we______(learn)about the basic structure of human cells.
6.The doctor suggested______(cut)down on sugar to protect our metabolic system.
7.Human biology,______covers anatomy and physiology,is closely related to medical science.
8.Only when we respect our body’s biological clock______we live a healthy life.
9.The new drug for heart disease______(test)on volunteers last year and proved to be effective.
10.She plans to study human biology in university,______she hopes to become a medical researcher.
第二节单词拼写（共10小题；每小题1.5分，满分15分）
根据句意及所给首字母或汉语提示，写出所缺单词的正确形式。
11.The h______body is made up of trillions of cells with different functions.(人类的)
12.Good sleep is essential for the r______of our body and brain after a day’s work.(恢复)
13.The scientist has been doing r______on human genes for more than 20 years.(研究)
14.Regular exercise can improve blood c______and strengthen the heart.(循环)
15.A balanced diet provides all the n______that our body needs to stay healthy.(营养)
16.The________(神经系统)controls all the activities of the human body.
17.His research focuses on the________(进化)of human beings over millions of years.
18.We should________(保护)our eyes from strong light to avoid vision damage.
19.The________(荷尔蒙)in our body affects our mood,growth and metabolism.
20.This new technology is used to study the________(结构)of human brain cells.
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）
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
Notice:Human Biology Science Exhibition
Dear students and teachers,
To popularize human biology knowledge and arouse students’ interest in life science,our school’s Science and Technology Club will hold a Human Biology Science Exhibition from April 25 to April 27,2026,in the school hall.
The exhibition includes three parts:human body structure model display,brain science research achievement show and healthy living experience area.We have invited biology teachers and medical experts to explain the structure of the human digestive,circulatory and nervous systems with 3D models.In the brain science area,you can learn about the latest research on memory and brain development.The healthy living area will provide free physical check-ups and professional advice on diet,exercise and sleep.
The exhibition is open to all students and teachers during school hours.We also welcome students to bring their homemade biology models to participate in the exhibition—excellent works will get small prizes.It’s a great chance to learn human biology knowledge in a fun and interactive way!
Come and join us to explore the mystery of the human body!
21.What is the main purpose of the Human Biology Science Exhibition
A.To hold a biology competition for students
B.To popularize human biology knowledge and arouse interest in life science
C.To invite medical experts to give lectures to students
D.To sell 3D human body models to students and teachers
22.What can visitors do in the healthy living experience area
A.Learn about the latest brain science research
B.Show their homemade biology models
C.Get free physical check-ups and healthy living advice
D.Learn about the structure of the human nervous system
23.Who can visit the exhibition
A.Only students who major in biology
B.All students and teachers of the school
C.Only medical experts and biology teachers
D.Only members of the Science and Technology Club
B
One year ago,i was a typical“night owl”.i stayed up late every night playing mobile phones or watching videos,and woke up late the next morning,often skipping breakfast.i thought it was just a personal habit,but soon i started to feel tired all day,and my grades began to drop.my biology teacher noticed my condition and talked to me about the human biological clock.
She told me that the human body has a natural clock that controls sleep,metabolism and other biological activities.staying up late breaks this clock,which not only causes tiredness but also damages the immune system and affects brain function.her words made me realize that i was hurting my body unconsciously.i decided to change my lifestyle and respect my biological clock.
At first,it was hard to fall asleep early.i tried many methods:Putting away my mobile phone an hour before bed,drinking a cup of warm milk,and doing some light stretching exercises.gradually,i got used to going to bed before 11 o’clock and waking up at 7 o’clock in the morning.i also started to eat a nutritious breakfast and do 20 minutes of exercise every day.
After a month,great changes happened to me.i no longer felt tired during the day,and my concentration in class improved a lot.my grades went up slowly,and i even felt my mood became more stable.this experience taught me a valuable lesson:The human body is a delicate biological system,and only by following its natural rules can we stay healthy and energetic.
24.Why did the author start to feel tired all day and get bad grades
A.He studied too hard every day
B.He broke his body’s biological clock by staying up late
C.He didn’t have any friends at school
D.He ate too much junk food every day
25.What does the underlined phrase“night owl”in Paragraph 1 probably mean
A.Someone who gets up early every morning
B.Someone who likes to play with owls
C.Someone who stays up late every night
D.Someone who sleeps all day long
26.What can we infer from the passage
A.The author still stays up late every night now
B.The author’s lifestyle change has brought great benefits to him
C.The author didn’t follow his biology teacher’s advice
D.The author hates doing exercise and eating breakfast
27.What is the author’s attitude towards the human biological clock now
A.Disregarding B.Respecting C.Doubting D.Ignoring
C
In the 2025-2026 academic year,human biology research has entered a new era with the development of digital technology,artificial intelligence and gene editing technology.These advanced technologies have not only changed the way scientists study the human body but also made great breakthroughs in understanding human life activities and treating diseases.
Digital imaging technology,such as 3D CT and magnetic resonance imaging(MRI),allows scientists to observe the structure and activity of the human body in real time and with high precision.They can clearly see the changes of cells,tissues and organs in the human body,which helps them study the cause of diseases more accurately.AI technology is also widely used in human biology research—it can analyze a large amount of biological data in a short time,find the connection between genes and diseases,and even predict the risk of certain diseases for people.
Gene editing technology is one of the most important achievements in human biology research in recent years.Scientists can use this technology to modify defective genes that cause genetic diseases,which provides a new way to treat incurable genetic diseases such as cystic fibrosis and sickle cell anemia.However,gene editing technology also brings ethical problems—many experts worry that improper use of this technology may change human evolution and cause unknown risks.
In addition,digital technology has also promoted the popularization of human biology knowledge.Online courses,virtual biology labs and digital textbooks make it easier for people to learn about human body structure,healthy living and disease prevention.More and more young people are becoming interested in human biology and choosing it as their major in university.
Human biology research is still developing rapidly,and new technologies and new discoveries will continue to appear.While we enjoy the benefits brought by scientific progress,we should also keep a rational attitude and abide by ethical norms to ensure that human biology research serves human health and development.
28.What is the main idea of the passage
A.The ethical problems brought by gene editing technology
B.The popularization of human biology knowledge in the digital age
C.How digital technology changes human biology research and its development
D.The importance of healthy living in human biology research
29.What can digital imaging technology help scientists do
A.Modify defective human genes
B.Observe the human body’s structure and activity with high precision
C.Analyze a large amount of biological data in a short time
D.Predict people’s future life span
30.Which of the following is true about gene editing technology
A.It has no ethical problems at all
B.It can help treat some genetic diseases
C.It has been used to change human evolution
D.It is useless for human biology research
31.What does the author suggest about human biology research
A.We should stop all gene editing research immediately
B.We should use advanced technologies without any restrictions
C.We should keep a rational attitude and abide by ethical norms
D.We should only focus on the development of new technologies
D
2026 National Teenager Physical Health Report:Focus on Biological Health and Healthy Living
BEIJING,March 18,2026–The 2026 National Teenager Physical Health Report,released by the Ministry of Education and the National Health Commission,was made public on Friday.The report,which surveyed more than 2 million teenagers aged 12 to 18 across China,shows that the overall physical health of teenagers has improved by 3.2%compared with 2025,but there are still some prominent biological health problems.
The report points out that the top three health problems among teenagers are poor eyesight,irregular biological clock and low immune function.78%of senior high school students are nearsighted,mainly due to long-term use of electronic products and lack of outdoor exercise.More than 60%of teenagers stay up late regularly,which breaks their biological clock and leads to tiredness,poor concentration and even mood disorders.In addition,45%of teenagers have low immune function because of unhealthy diet and lack of exercise.
The report also shows that teenagers who keep a healthy lifestyle have better biological health.These teenagers usually sleep for 8 to 9 hours every night,take in a balanced diet with enough vegetables and fruits,and do at least one hour of outdoor exercise every day.Their eyesight condition is better,and their immune function is much stronger than those who have an unhealthy lifestyle.
To improve teenagers’ biological health,the report puts forward several suggestions.First,schools and parents should guide teenagers to form a regular schedule and respect their biological clock.Second,reduce the time of using electronic products and increase outdoor exercise time.Third,cultivate healthy eating habits and avoid eating too much junk food.In addition,schools should increase biology and health education courses to let teenagers learn more about human biology and healthy living knowledge.
The person in charge of the National Health Commission said that teenagers’ biological health is related to the future of the nation,and schools,parents and society should work together to create a good environment for teenagers’ healthy growth.
32.What is the best title for the passage
A.2026 National Teenager Physical Health Report:Focus on Biological Health
B.Teenagers in China All Have Poor Biological Health
C.How to Treat Nearsightedness Among Teenagers
D.The Importance of Gene Editing Technology in Teenager Health
33.What is the top health problem among teenagers according to the report
A.Low immune function B.Irregular biological clock
C.Poor eyesight D.Mood disorders
34.Why do many teenagers have low immune function
A.Because they sleep too much every day
B.Because of unhealthy diet and lack of exercise
C.Because they read too many books every day
D.Because they take too many vitamins
35.What suggestion does the report put forward to improve teenagers’ biological health
A.Let teenagers use more electronic products
B.Guide teenagers to form a regular schedule
C.Ask teenagers to stay up late to study
D.Let teenagers eat more junk food
第二节七选五（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。选项中有两项为多余选项。
How to Keep Your Human Biological System Healthy in Daily Life
The human biological system is a complex and delicate system that controls all our life activities.Keeping it healthy is the key to a long and healthy life.In the digital age,many people have unhealthy living habits that damage their biological system.36.______
First of all,form a regular schedule and respect your biological clock.37.______Going to bed and getting up at a fixed time every day helps the body form a stable biological rhythm,which is good for metabolism,sleep and immune function.Avoid staying up late,especially on weekends and holidays.
38.______A balanced diet provides all the nutrients,vitamins and minerals that the biological system needs.Eat more vegetables,fruits,whole grains and lean meat,and reduce the intake of sugar,salt and junk food.Drinking enough water every day is also essential for maintaining normal bodily functions.
Thirdly,keep doing regular exercise.Exercise can improve blood circulation,strengthen the heart and lungs,and boost the immune system.39.______You can choose outdoor exercises such as running,swimming and playing basketball,or indoor exercises such as yoga and stretching.The key is to keep doing it persistently.
Finally,keep a good mood and reduce mental stress.Mental stress has a great impact on the biological system—it can cause hormone disorder,sleep problems and even weaken the immune function.40.______You can relax yourself by listening to music,reading books or talking to friends and family.
In a word,keeping the biological system healthy requires a good living habit.Only by taking care of your body in daily life can you keep your biological system in good condition.
A.Keep a balanced and nutritious diet
B.Mental stress is the biggest enemy of human health
C.Here are some practical suggestions for you
D.The biological clock is the“controller”of the human body
E.You don’t need to do exercise if you have a balanced diet
F.Even 30 minutes of exercise every day can bring great benefits
G.You should eat as much sugar and junk food as possible
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）
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 entered senior high school,I chose human biology as my favorite subject.At first,I just thought it was interesting to learn about the human body,but after a semester of study,I 41.______realized the importance of this subject for our life.
My biology teacher is a kind woman with rich research experience.She always uses vivid examples to explain complex 42.______knowledge,such as how the nervous system controls our actions and how the immune system fights against viruses.With her help,I learned about the 43.______of the human body’s various systems and how they work together to keep us healthy.
Once,I got a bad cold and had a high fever.The doctor told me that it was because my immune system was 44.______after staying up late for several days.This experience made me connect what I learned in class with real life.I started to pay more attention to my 45.______habits.I stopped staying up late,ate more nutritious food,and started to do morning exercises every day.
Gradually,my physical condition became much 46.______.I no longer got sick easily,and I felt more 47.______in class.I also began to read more books about human biology in my spare time,and even did some small 48.______at home,such as observing the growth of bean sprouts to learn about cell division.
Last month,our school held a human biology knowledge competition.I 49.______in it and won the first prize.When I got the prize,I knew that my hard work had paid off.This competition also made me 50.______my dream:to become a human biology researcher in the future,to study the mystery of the human body,and to develop new methods to 51.______diseases.
Now,human biology is not just a subject for me,but a lifelong 52.______.It teaches me to respect life and take good care of my body.I believe that with continuous learning and hard work,I can 53.______my dream one day.As my teacher often says,“Human biology is the science of life,and every 54.______in this field can bring hope to human health.”I will keep this in mind and move forward on the road of 55.______human biology.
41.A.hardly B.truly C.nearly D.slightly
42.A.biology B.math C.English D.history
43.A.size B.weight C.function D.color
44.A.strong B.weak C.active D.normal
45.A.living B.studying C.working D.playing
46.A.worse B.better C.busier D.harder
47.A.tired B.bored C.sleepy D.energetic
48.A.experiments B.sports C.games D.trips
49.A.took part B.gave up C.looked for D.stood by
50.A.change B.forget C.clear D.lose
51.A.catch B.treat C.spread D.cause
52.A.task B.hobby C.job D.problem
53.A.realize B.give up C.break D.forget
54.A.failure B.mistake C.discovery D.challenge
55.A.learning B.teaching C.ignoring D.refusing
第二节语篇语法填空（共10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。
Human biology is the study of the human body and its biological activities,which 56.______(be)an important branch of life science.Learning human biology knowledge is essential for us to understand ourselves and keep healthy.
57.______(learn)human biology well,we need to master basic knowledge such as cell structure,human organ systems and biological rhythms.We also need to do some practical experiments,which can help us 58.______(deep)our understanding of theoretical knowledge.In many schools,students have biology lab classes 59.______they can observe human cell samples and do simple experiments.
With the development of science and technology,more and more new 60.______(technology)are used in human biology teaching.For example,virtual reality(VR)technology allows students 61.______(experience)the working process of the human circulatory system in a 3D virtual environment.Online biology databases provide a lot of 62.______(value)information for students to study.
Human biology is closely related to our daily life.It tells us how 63.______(keep)a balanced diet,how to exercise properly and how to respect our biological clock.64.______we master this knowledge,we can form a healthy lifestyle and avoid many diseases caused by unhealthy habits.
In the future,human biology 65.______(develop)faster and faster,and it will bring more benefits to human health.Let’s learn and explore the mystery of the human body together!
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，你校将举办“人体生物学与健康生活”主题演讲比赛，请你以学生会的名义写一则通知，内容包括：
1.活动目的：普及人体生物学知识，倡导健康生活方式
2.活动时间：2026年5月10日下午2:00-4:30
3.活动地点：学校报告厅
4.参赛对象：全体高中生
5.报名方式：各班学习委员处报名，截止日期5月3日
注意：1.词数80左右；2.可适当增加细节，使行文连贯；3.开头和结尾已为你写好。
Notice
Dear students,
The Students'Union
April 20,2026
第二节读后续写（满分25分）
阅读下面短文，根据所给情节进行续写，使之构成一个完整的故事。词数150左右，续写部分分为两段，每段开头已为你写好。
My First Biology Experiment
I have always been interested in human biology,and my biggest wish is to do a real biology experiment in the lab.Last month,my biology teacher told us that we could do a small experiment about human blood cell observation in the school lab,which made me extremely excited.
On the day of the experiment,I prepared everything carefully:a microscope,a glass slide,a dropper and alcohol cotton.My teacher taught us how to take a small drop of blood from the finger and make a blood smear.At first,I was very nervous—I was afraid of pricking my finger and seeing blood.But with the teacher’s encouragement,I finally plucked up the courage to do it.
However,things didn’t go as smoothly as I expected.When I observed the blood smear under the microscope,I could only see a blurry image,and I couldn’t find the red blood cells and white blood cells at all.I tried again and again,but the result was still the same.Other students had already seen the clear cell structure and were talking excitedly.I felt upset and sat there quietly,wanting to give up.
续写要求
1.所续写短文的词数应为150左右；
2.续写部分分为两段，每段开头已为你写好；
3.续写内容应符合逻辑，故事完整，语言流畅。
Paragraph 1
Just then,my biology teacher came to me and patted me on the shoulder gently.
Paragraph 2
When I saw the clear red blood cells under the microscope,I was filled with excitement.Unit 9 Human Biology单元练习-2025-2026学年北师大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.helps 2.conducted 3.that 4.which 5.will have learned
6.cutting 7.which 8.can 9.was tested 10.where
第二节单词拼写（共10小题；每小题1.5分，满分15分）
11.human 12.recovery 13.research 14.circulation 15.nutrients
16.nervous system 17.evolution 18.protect 19.hormones 20.structure
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.B 22.C 23.B 24.B 25.C 26.B 27.B 28.C 29.B 30.B
31.C 32.A 33.C 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.C 37.D 38.A 39.F 40.B
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.B 42.A 43.C 44.B 45.A 46.B 47.D 48.A 49.A 50.C
51.B 52.B 53.A 54.C 55.A
第二节语篇语法填空（共10小题；每小题1.5分，满分15分）
56.is 57.To learn 58.deepen 59.where 60.technologies
61.to experience 62.valuable 63.to keep 64.If/When 65.will develop
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
Notice
Dear students,
To popularize human biology knowledge and advocate a healthy lifestyle,our school will hold a speech contest themed"Human Biology and Healthy Living".It will be held in the school lecture hall from 2:00 to 4:30 p.m.on May 10,2026.All senior high school students are welcome to take part in it.You can sign up with your class study monitor before May 3.We hope all of you will join in actively!
The Students' Union
April 20,2026
第二节读后续写（满分25分）
参考范文
Paragraph 1
Just then,my biology teacher came to me and patted me on the shoulder gently.She noticed my sadness and asked about the reason.I told her I failed to see the blood cells clearly though I had tried many times.She checked my microscope and found the lens wasn't adjusted properly.Then she taught me how to adjust the magnification step by step and told me to make a thinner blood smear.With her patient guidance,I prepared a new smear carefully and adjusted the microscope as she told me.
Paragraph 2
When I saw the clear red blood cells under the microscope,I was filled with excitement.The small red blood cells were floating in the field of vision,and I even found several white blood cells.I was so proud of what I had done and thanked my teacher sincerely.This experience not only let me master the skill of observing blood cells but also taught me that patience and carefulness are the keys to doing experiments well.It made me more passionate about human biology and I decided to do more biological experiments in my spare time.
详细解析
第一部分单词练习
第一节单句语法填空（共10小题；每小题1.5分，满分15分）
1.答案：helps
解析：动名词短语Studying human biology作主语，谓语动词用第三人称单数形式。
2.答案：conducted
解析：过去分词作后置定语，修饰The new research，表被动且完成的动作。
3.答案：that
解析：考查强调句结构It is+被强调部分+that...，被强调部分为the balanced diet and regular exercise。
4.答案：which
解析：非限制性定语从句，关系词which指代前文“很多青少年缺乏睡眠”这件事，在从句中作主语。
5.答案：will have learned
解析：By the time引导时间状语从句，从句用一般现在时，主句用将来完成时表将来完成的动作。
6.答案：cutting
解析：固定用法suggest doing sth.，后接动名词作宾语，意为“建议做某事”。
7.答案：which
解析：非限制性定语从句，关系词which指代先行词Human biology，在从句中作主语。
8.答案：can
解析：Only+状语从句置于句首，主句用部分倒装；结合句意用can表“能够”，符合语义。
9.答案：was tested
解析：主语The new drug与test为被动关系，时间状语last year，用一般过去时的被动语态。
10.答案：where
解析：非限制性定语从句，关系词where指代先行词university，在从句中作地点状语。
第二节单词拼写（共10小题；每小题1.5分，满分15分）
11.答案：human
解析：形容词human修饰body，意为“人类的”，契合句意。
12.答案：recovery
解析：名词recovery作介词for的宾语，意为“恢复”，为不可数名词。
13.答案：research
解析：固定搭配do research on，意为“对……做研究”，research为不可数名词。
14.答案：circulation
解析：名词circulation作宾语，blood circulation为固定搭配“血液循环”。
15.答案：nutrients
解析：名词nutrient“营养物质”为可数名词，此处用复数表泛指各类营养物质。
16.答案：nervous system
解析：nervous system为固定名词短语，意为“神经系统”，为专有表达。
17.答案：evolution
解析：名词evolution作宾语，意为“进化”，为不可数名词。
18.答案：protect
解析：情态动词should后接动词原形；固定搭配protect...from...“保护……免受……伤害”。
19.答案：hormones
解析：名词hormone“荷尔蒙”为可数名词，用复数表泛指体内的各类荷尔蒙。
20.答案：structure
解析：名词structure作宾语，表特指人脑细胞的结构，用单数形式。
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）
A篇
语篇解读：本文为学校科技俱乐部发布的人体生物学科学展通知，介绍展览的时间、三大展区内容、参与对象及特色活动，核心目的是普及人体生物学知识，激发学生对生命科学的兴趣。
21.答案：B
段落定位原文：第一段第二句To popularize human biology knowledge and arouse students’ interest in life science（普及人体生物学知识，激发学生对生命科学的兴趣）
解析：该句直接点明展览的主要目的，与选项B完全匹配。
22.答案：C
段落定位原文：第二段最后一句The healthy living area will provide free physical check-ups and professional advice on diet,exercise and sleep.（健康生活体验区将提供免费的身体检查，以及关于饮食、运动和睡眠的专业建议。）
解析：选项C与原文健康生活体验区的活动内容完全一致。
23.答案：B
段落定位原文：第三段第一句The exhibition is open to all students and teachers during school hours.（展览在上学时间对全体师生开放。）
解析：原文明确展览参与对象为学校全体师生，选B。
B篇
语篇解读：本文为记叙文，作者讲述自己曾是“夜猫子”，熬夜打破生物钟导致身体不适、成绩下滑，在生物老师的指导下调整生活方式，最终身体状态和学习成绩大幅改善的经历，点明遵循人体生物钟的重要性。
24.答案：B
段落定位原文：第二段第二句staying up late breaks this clock,which not only causes tiredness but also damages the immune system and affects brain function.（熬夜打乱了这个生物钟，不仅会导致疲劳，还会损害免疫系统、影响大脑功能。）
解析：该句直接说明作者身体疲惫、成绩下滑的核心原因，选B。
25.答案：C
段落定位原文：第一段第二句I stayed up late every night playing mobile phones or watching videos,and woke up late the next morning（我每晚熬夜玩手机、看视频，第二天早上起得很晚）
解析：结合后文对作者生活习惯的描述，“night owl”在此处指“每晚熬夜的人”，选C。
26.答案：B
段落定位原文：第四段第一、二句After a month,great changes happened to me.i no longer felt tired during the day,and my concentration in class improved a lot.my grades went up slowly...（一个月后，我发生了很大的变化。白天不再感到疲劳，课堂注意力大幅提升，成绩慢慢提高……）
解析：从作者调整生活方式后的一系列积极变化，可推知生活方式的改变为他带来了诸多益处，选B。
27.答案：B
段落定位原文：第二段最后一句I decided to change my lifestyle and respect my biological clock.（我决定改变生活方式，尊重我的生物钟。）；第四段最后一句The human body is a delicate biological system,and only by following its natural rules can we stay healthy and energetic.（人体是一个精密的生物系统，只有遵循它的自然规律，我们才能保持健康和精力充沛。）
解析：作者明确表达了对人体生物钟的“尊重”，并将其付诸行动，选B。
C篇
语篇解读：本文为说明文，介绍数字技术、人工智能、基因编辑技术的发展推动人体生物学研究进入新时代，讲述各类先进技术在该领域的应用、研究成果，同时指出基因编辑技术带来的伦理问题，强调人体生物学研究需保持理性、遵守伦理规范。
28.答案：C
段落定位原文：第一段第二句These advanced technologies have not only changed the way scientists study the human body but also made great breakthroughs in understanding human life activities and treating diseases.（这些先进技术不仅改变了科学家研究人体的方式，还在理解人类生命活动和治疗疾病方面取得了重大突破。）；最后一段Human biology research is still developing rapidly...we should also keep a rational attitude and abide by ethical norms.（人体生物学研究仍在快速发展……我们也应该保持理性的态度，遵守伦理规范。）
解析：全文围绕“数字技术如何改变人体生物学研究”及“该领域的发展现状与要求”展开，选C。
29.答案：B
段落定位原文：第二段第一句Digital imaging technology,such as 3D CT and magnetic resonance imaging(MRI),allows scientists to observe the structure and activity of the human body in real time and with high precision.（数字成像技术，如三维计算机断层扫描和磁共振成像，让科学家能够实时、高精度地观察人体的结构和活动。）
解析：选项B与原文数字成像技术的功能完全一致。
30.答案：B
段落定位原文：第三段第二句Scientists can use this technology to modify defective genes that cause genetic diseases,which provides a new way to treat incurable genetic diseases such as cystic fibrosis and sickle cell anemia.（科学家可以利用这项技术修改导致遗传病的缺陷基因，为治疗囊性纤维化和镰状细胞贫血等难治性遗传病提供了新方法。）
解析：原文表明基因编辑技术能为治疗部分遗传病提供新方法，选B。
31.答案：C
段落定位原文：最后一段最后一句While we enjoy the benefits brought by scientific progress,we should also keep a rational attitude and abide by ethical norms to ensure that human biology research serves human health and development.（在享受科学进步带来的益处的同时，我们也应该保持理性的态度，遵守伦理规范，确保人体生物学研究为人类的健康和发展服务。）
解析：该句直接给出作者对人体生物学研究的建议，与选项C匹配。
D篇
语篇解读：本文为说明文，介绍2026年全国青少年体质健康报告的核心内容，指出青少年目前存在的三大生物健康问题，说明养成健康生活方式的益处，并从学校、家长层面提出改善青少年生物健康的具体建议。
32.答案：A
段落定位原文：标题2026 National Teenager Physical Health Report:Focus on Biological Health and Healthy Living（2026年全国青少年体质健康报告：聚焦生物健康与健康生活）
解析：标题需概括全文核心内容，本文围绕该报告展开，选项A与报告主题一致。
33.答案：C
段落定位原文：第二段第一句The report points out that the top three health problems among teenagers are poor eyesight,irregular biological clock and low immune function.（报告指出，青少年的三大健康问题是视力不佳、生物钟紊乱和免疫功能低下。）
解析：视力不佳为青少年首要健康问题，选C。
34.答案：B
段落定位原文：第二段最后一句In addition,45%of teenagers have low immune function because of unhealthy diet and lack of exercise.（此外，45%的青少年因饮食不健康和缺乏运动导致免疫功能低下。）
解析：该句直接说明青少年免疫功能低下的原因，选B。
35.答案：B
段落定位原文：第三段第二句First,schools and parents should guide teenagers to form a regular schedule and respect their biological clock.（首先，学校和家长应引导青少年养成规律的作息，尊重他们的生物钟。）
解析：选项B为报告提出的改善建议之一，其余选项均与报告建议相反。
第二节七选五（共5小题；每小题2.5分，满分12.5分）
语篇解读：本文为说明文，围绕“如何在日常生活中保持人体生物系统健康”展开，从规律作息、均衡饮食、规律运动、调节情绪四个方面给出实用且具体的建议，强调良好生活习惯的重要性。
36.答案：C
段落定位：第一段最后一句
解析：前文提出“数字时代很多人的不健康生活习惯损害生物系统”，后文分四点给出具体建议，该选项起到承上启下的过渡作用。
37.答案：D
段落定位：第二段段首
解析：本段核心围绕“生物钟”展开，该选项承接段首，解释生物钟的核心作用，契合后文“规律作息的重要性”。
38.答案：A
段落定位：第三段段首
解析：本段全段围绕“均衡饮食”展开，介绍均衡饮食的作用和具体做法，该选项作为段首主题句，统领全段内容。
39.答案：F
段落定位：第四段第三句
解析：本段核心为“规律运动的重要性”，该选项承接前文的运动价值，契合后文“运动选择与坚持”的内容。
40.答案：B
段落定位：第五段第三句
解析：本段围绕“情绪与心理压力”展开，前文说明心理压力对生物系统的危害，该选项承接前文，契合后文“缓解压力的具体方法”。
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）
语篇解读：本文为记叙文，作者讲述高中选择人体生物学作为偏好学科后，在生物老师的指导下，逐渐认识到该学科的生活价值，结合自身感冒的经历养成健康生活习惯，参加学校生物知识竞赛获奖并确立“成为人体生物学研究者”梦想的故事，体现了人体生物学对作者生活和理想的影响。
41.答案：B
选项翻译：A.hardly几乎不；B.truly真正地；C.nearly几乎；D.slightly轻微地
解析：经过一学期的学习，作者从最初觉得有趣，到真正地认识到这门学科对生活的重要性，选B。
42.答案：A
选项翻译：A.biology生物学；B.math数学；C.English英语；D.history历史
解析：本文围绕人体生物学展开，老师用生动例子讲解复杂的生物学知识，契合文章主题，选A。
43.答案：C
选项翻译：A.size尺寸；B.weight重量；C.function功能；D.color颜色
解析：在老师的帮助下，作者学习到人体各系统的功能，以及它们如何协同工作维持健康，选C。
44.答案：B
选项翻译：A.strong强壮的；B.weak虚弱的；C.active活跃的；D.normal正常的
解析：作者连续熬夜后，免疫系统变得虚弱，因此感冒发烧，选B。
45.答案：A
选项翻译：A.living生活；B.studying学习；C.working工作；D.playing玩耍
解析：这次生病的经历让作者将课堂知识与现实结合，开始关注自己的生活习惯，后文提及的“不熬夜、吃营养餐”均为生活习惯，选A。
46.答案：B
选项翻译：A.worse更糟的；B.better更好的；C.busier更忙的；D.harder更难的
解析：调整健康的生活习惯后，作者的身体状况变得更好，选B。
47.答案：D
选项翻译：A.tired疲惫的；B.bored无聊的；C.sleepy困倦的；D.energetic精力充沛的
解析：身体状况改善后，作者不再轻易生病，课堂上也变得精力充沛，选D。
48.答案：A
选项翻译：A.experiments实验；B.sports运动；C.games游戏；D.trips旅行
解析：作者对人体生物学的兴趣加深，利用业余时间在家做小实验，“观察豆芽生长学习细胞分裂”是生物实验，选A。
49.答案：A
选项翻译：A.took part参加；B.gave up放弃；C.looked for寻找；D.stood by支持
解析：作者参加了学校举办的人体生物学知识竞赛，并获得一等奖，选A。
50.答案：C
选项翻译：A.change改变；B.forget忘记；C.clear明确；D.lose失去
解析：这次竞赛的获奖经历，让作者明确了自己的梦想——成为一名人体生物学研究者，选C。
51.答案：B
选项翻译：A.catch抓住；B.treat治疗；C.spread传播；D.cause引起
解析：作者的梦想是研究人体奥秘，研发治疗疾病的新方法，契合生物学研究者的研究目标，选B。
52.答案：B
选项翻译：A.task任务；B.hobby爱好；C.job工作；D.problem问题
解析：经过一系列经历，人体生物学对作者而言，不仅是一门学科，更是一项终身爱好，选B。
53.答案：A
选项翻译：A.realize实现；B.give up放弃；C.break打破；D.forget忘记
解析：作者相信通过不断的学习和努力，终有一天能实现自己的梦想，realize one’s dream为固定搭配“实现梦想”，选A。
54.答案：C
选项翻译：A.failure失败；B.mistake错误；C.discovery发现；D.challenge挑战
解析：老师的话点明人体生物学的价值——该领域的每一个发现，都能为人类健康带来希望，选C。
55.答案：A
选项翻译：A.learning学习；B.teaching教学；C.ignoring忽视；D.refusing拒绝
解析：作者将牢记老师的话，在学习人体生物学的道路上继续前行，选A。
第二节语篇语法填空（共10小题；每小题1.5分，满分15分）
语篇解读：本文为说明文，介绍人体生物学的学科定位（生命科学的重要分支）、学习方法（掌握基础+做实验）、科技对该学科教学的推动作用，以及学科与日常生活的紧密关联，并展望人体生物学的未来发展。
56.答案：is
解析：先行词Human biology为单数不可数名词，非限制性定语从句的谓语动词用单数形式is。
57.答案：To learn
解析：用动词不定式作目的状语，意为“为了学好人体生物学”，符合句意。
58.答案：deepen
解析：*help sb.do sth.*为固定结构，后接动词原形；deepen为动词，意为“加深”，契合“加深对理论知识的理解”的语义。
59.答案：where
解析：定语从句，关系词where指代先行词biology lab classes，在从句中作地点状语。
60.答案：technologies
解析：名词technology为可数名词，more and more后接可数名词复数形式。
61.答案：to experience
解析：固定用法allow sb.to do sth.，后接动词不定式作宾语补足语。
62.答案：valuable
解析：形容词valuable修饰名词information，意为“有价值的信息”，作定语。
63.答案：to keep
解析：特殊疑问词+动词不定式结构how to keep作宾语，意为“如何保持均衡饮食”。
64.答案：If/When
解析：用If引导条件状语从句（如果我们掌握这些知识），或When引导时间状语从句（当我们掌握这些知识时），均符合语义。
65.答案：will develop
解析：时间状语In the future（在未来），谓语动词用一般将来时，表将来会发生的动作。
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）
解题思路步骤
1.定格式：严格遵循通知体裁要求，标题为Notice，顶格写称呼Dear students，落款为The Students' Union+日期，各部分格式规范。
2.明要点：根据题目要求，依次写明活动目的（普及人体生物学知识，倡导健康生活方式）、时间（2026年5月10日下午2:00-4:30）、地点（学校报告厅）、参赛对象（全体高中生）、报名方式（各班学习委员处，截止5月3日），不遗漏核心信息。
3.控词数：整体词数控制在80词左右，语言简洁明了，避免冗余表述；适当增加衔接词，使行文连贯。
4.保语法：使用一般将来时为主的时态，保证句式正确，无语法、拼写错误，符合英语书面表达规范。
第二节读后续写（满分25分）
解题思路步骤
1.顺情节：根据前文“实验失败、作者沮丧想放弃”的情节，第一段承接老师前来指导的开头，合理设计老师发现问题（显微镜焦距未调好、血涂片太厚）、耐心指导作者修正的情节，符合逻辑。
2.扣主题：续写内容紧扣“人体生物学实验”主题，细节描写（调焦距、做薄血涂片）符合生物实验的实际操作，保证内容真实性。
3.表情感：通过动作、心理描写，体现作者从“沮丧”到“兴奋”的情感变化，使故事更生动；第二段写出实验成功后的感悟，升华主题（耐心和细心是实验的关键，加深对生物的兴趣）。
4.守要求：严格控制词数在150词左右，两段内容衔接自然，句式多样，无语法错误，符合续写的格式和内容要求。

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