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高中英语(新人教版)选择性必修一同步习题：UNIT 5 Part 3(同步习题)【含答案及解析】

Part3Using Language,Assessing Your Progress&Video Time基础过关练Ⅰ.单词拼写1.(化学的)factories do great harm to the air.2.The elderly and children are having a hard time in the(最深处)of winter.3.Plants in desert usually have long(根).4.The government has taken measures to help people get rid of(贫穷).5.The population of theu area is larger than that of the rural area.puters are now inw use all over the world.7.O food,which is green and healthy,is on sale at the local grocery.8.The Chinese and the Westerners havee different views of life.9.Foreigners tend to be impressed with the spicyf of Sichuan dishes.Ⅱ.选词填空1.Many natural means have been used in organic farming.,animal wastes are used to keep the soil fertile.2.He's as influential as he used to be.3.He prefers to eat snacks sugar.4.I like the orange,which is juicy and vitamins.5.The advancement of technology can boost education.,the development of education can contribute to technological progress.6.Being gentle the British people's mind.7.People should psychological counseling if necessary.Ⅲ.单句语法填空1.(essential),he is not a man of career.2.Chewing plays an important role in one's(digest).3.Food produced from chemical farming is not(nutrition).4.Modern means of(fertilise)can be energy-saving and environmentally friendly.5.Nowadays physical therapy(理疗)has gradually been used as an(alter)to medicine.Ⅳ.完成句子1.使他脱颖而出的是他精通几门语言。

books雅思part 3话题卡

books雅思part 3话题卡1. Books and Reading。

- What types of books are popular in your country? Why?- Do you prefer reading ebooks or traditional books? Why?- How has technology changed reading habits?- How important is reading for young children's development?- How can reading help people develop their creativity and imagination?2. The Importance of Literature。

- What is the role of literature in society?- How can literature help people see the world from different perspectives?- Why do you think some people do not enjoy reading literature?- How can literature help people better understand themselves and others?- What are the benefits of studying literature in school?3. Digital Media and Books。

- Do you think digital media is replacing books? Why or why not?- How has the rise of social media affected reading habits?- How are publishers adapting to the shift towards digital media?- Do you think digital media is having a positive or negative impact on literacy rates?- How do you think books will change in the future with the rise of digital media?4. The Evolution of Books。

译林版高中英语选择性必修第二册Unit3 Fit for life Part 3 练习含答案

Part3Extended reading,Project,Assessment&Further study基础过关练Ⅰ.单词拼写1.(2023江苏常州九校期中联合调研)You can persuade yourself with your choice if you're not careful,and if you do,it'll probably(滥用)your choices.2.(2020新高考Ⅰ)He turned to the forest(部门)for help but was told that nothing would grow there.3.(2021北京)Researchers in many areas have projected the(广泛的)collapse as“a credible scenario(情景)this century”. Ⅱ.一词多义1.A back injury forced her to withdraw from the volleyball game.2.The people in the building withdrew in time from the big fire.3.After his mother died,he began to withdraw into himself.4.The drug was withdrawn from sale due to its false advertising.Ⅲ.单句语法填空1.According to the expert,the vase has a history dating backthe early Tang Dynasty.2.The child's chair was low.The teacher adjusted itthe height where he could see the blackboard.3.There are several theories accounting for these (phenomenon)which are reflected in the picture.4.(2023北京)And I applied with the same(anxiety) excitement as before.5.Afterwards,with more trees cut down,the environment they lived in was(severe)damaged gradually.6.The new labs are with advanced,which motivates us students to study hard to achieve our goals.(equip)7.It is bad manners to laugh at people.Most of us may end up in one day.(disable)8.There is growing evidence staying up late has a serious impact on people's health.9.Now that she is out of work,Lucy(consider)going back to school,but she hasn't decided yet.Ⅳ.完成句子1.花太多的时间在网上是不健康的,并且让人很难集中精力在生活中的其他事情上。

2017 普陀二模卷 Part 3 Reading and Writing

Part 3 Reading and Writing（第三部分读与写）Ⅵ. Reading Comprehension（阅读理解）（共50分）A. Choose the best answer（根据短文内容，选择最恰当的答案）（12分）There is an old saying：one good turn deserves another. It means you do a helpful or kind act for someone who has done something good for you. Denson is a mechanic（机修工），but he lost his job a few months ago. He is kind and helpful, but always feared applying for a new job.One day, he gathered up all his strength and decided to attend a job interview. His appointment was at 10 a.m. and it was already 8:30. While waiting for a bus to the office where he was supposed to be interviewed, he saw an elderly man wildly kicking the tyre（轮胎）of his car. Obviously（很显然）there was something wrong with the ear. Denson immediately went up to lend him a hand. When Denson finished working on the car, the old man asked him how much he should pay for the service. Denson said there was no need to pay him and he just helped someone in need, and he had to rush for an interview. Then the old man said, “Well, I could take you to the office for your interview. It’s the least I could do. Please, I insist.”Denson agreed.On arrival, Denson found a long line of applicants（求职人）waiting to be interviewed. Denson still had some grease （油脂）on him after the car repair, but he did not have much time to wash it off or have a change of shirt. One by one, the applicants left the interviewer’s office with disappointed looks o n their faces. Finally his name was called. The interviewer was sitting on a large chair facing the office window. Rocking the chair back and forth, he asked,“Do you really need to be interviewed?”Denson’s heart sank.“With the way I look now, how could I possibly pass this interview?”he thought to himself. Then the interviewer turned the chair and to Denson’s surprise, it was the old man he helped earlier in the morning. It turned out he was the General Manager of the company.“Sorry I had to keep you waitin g, but I was pretty sure I made the right decision to have you as a member of the company before you even stepped into the office. I just know you’d be a trustworthy（值得信赖的）worker. Congratulations!”Denson sat down and they shared a cup of coffee as he landed himself a new job.69. Why did Denson apply for a new job? _____________A. He was out of work.B. He was bored with his job.C. He wanted a higher position.D. He hoped to find a better boss.70. What did Denson see on the way to the interview? ________A. A friend’s car had a flat tyre.B. A wild man was pushing a car.C. A terrible car accident happened.D. An old man’s car broke down.71. The elderly man _______.A. paid Denson some money for the repair workB. gave Denson a free ride for the repair workC. offered Denson some advice on his interviewD. asked Denson to drive his car to the office72. How did Denson feel on hearing the interviewer’s question? ____________A. He was sorry for the other applicants.B. There was no hope for him to get the job.C. He regretted helping the old man.D. The interviewer was very rude.73. Which of the following is right? ________A. Denson was too shy to apply for a job.B. Denson repaired the car for the elderly man in order to get the job.C. Denson applied for a new job so that he could get a good pay.D. Denson is such a warm-hearted man that he could get a good pay.74. What can we learn from Denson’s experience?_____A. Where there’s a will, there’s a way.B. A friend in need is a friend indeed.C. Good is rewarded with good.D. Two heads are better than one.B. Choose the words or expressions to complete the passage（选择最恰当的单词或词语，完成短文）（12分）Most people have work to do. With work, they can earn their living. They are busy with their work all day long. Workaholism（迷恋工作）is now very common in our society. Some people no longer do their work in order to live, but they live in order to work.Company staff in big cities, for example, frequently work sixty to seventy hours a week. From time to time, huge amounts of work is waiting for them to complete. Workaholism can be a serious problem, Because true workaholics（工作狂）would rather work than do anything else, and they ___75___ have no idea of how to relax, that is, they might not enjoy movies, sports, or other types of entertainment. Most of all, they ___76___ to sit and do nothing. When workaholics are not at work they feel ill at ease（局促不安），jumpy and nervous（神经紧张）. The lives of workaholics are usually stressful（有压力的），and this tension（紧张）and worry can cause health problems such as heart attacks and stomach diseases. ___77___, typical workaholics think about their work while driving, falling asleep or when others are talking. Many workaholics are afraid that if they don’t work hard they will lose their job or be a failure.Is workaholism always dangerous? Perhaps not. There are certainly people who work efficiently under stress. Some studies show that many workaholics have great energy and interest in work. They feel work is so pleasurable that they are really happy. For most workaholics, work and entertainment are the same things. Their jobs ___78___ them with a challenge and this keeps them busy and creative. Why do workaholics enjoy their jobs so much? There are several ___79___ to work. Of course, work provides people with paychecks（工资），and this is important. But very often it offers ___80___ financial security（经济保障）. It provides people with self-confidence. Workaholics have a feeling of satisfaction when they have produced a challenging piece of work and are able to say “I made it”.75. A. still B. probably C. politely D. excitedly76. A. dream B. decide C. intend D. hate77. A. Therefore B. Hardly C. Anyway D. Besides78. A. equip B. pack C. provide D. offer79. A. means B. advantages C. steps D. ways80. A. no more B. more or less C. less than D. more thanC. Read the passage and fill in the blanks with proper words（在短文的空格内填入适当的词，使内容通顺，每空格限填一词，首字母已给）（14分）The eggplant is a member of the potato family. Eggplant varieties differ in s__81_, shape, color, growth habit and even maturation（成熟）time. This strangely named vegetable used to come in only one color –white. It grows in a manner much like tomatoes, hanging from the vine（藤）of a plant that grows several feet in height. It can be steamed, fried, and baked. It can be eaten by l__82__ or combined with meats and other vegetables, Eggplant was first grown in India in the 5th century BC. Its propularity soon spread to China. Finally, during the Middle Ages the vegetable made its way to Europe. At that time, eggplant was not the shiny purple vegetable most people know today. Instead, it’s like a white egg. Due to this egg-like appearance, eggplant got its name. In its early days, the vegetable was so bitter（苦的）that people often called it a“mad apple.”This nickname started because people believed its bitterness was bad for one’s health. People a___83___ thought eggplant could cause madness and cancer. In fact eggplant is so healthy that it may prevent cancer. In addition, the brain and the heart benefit from this super vegetable. Since it’s high in fibre（纤维素），eggplant can i___84___ digestion（消化）. Italy, Turkey, Egypt, China and Japan are the leading growers of eggplant in the worldtoday. Depending on its location, eggplant may be purple, green, orange or yellow, white. And it can be as s___85___ as a tomato or as large as a cucumber. Dish varieties range from simple to complex, with all of them being delicious. Today, t___86___ of people gather in Loomis, Calif, for the annual Loomis Eggplant Festival. The main activity at the festival is eating delicious eggplant dishes. There is plenty more to do and see, though. Recipe（食谱）contests, arts and crafts, performers, races and children’s activities all“egg - cite”（excite）festival –goers （参加节目活动者）. Most people at the festival would agree --- eggplant is an“egg-cellent”（excellent）vegetable. Eggplants are now available in markets t___87___ the year, but they are their best from August to October when they are in season.D. Answer the questions（根据短文内容回答下列问题）（12分）There has been a lot of talk about Chinese bicycle-sharing recently. Shared bikes are nowadays becoming the center of attention in our Wechat friend circle. Many of our friends post photos of themselves riding bikes, especially during the weekend in natural parks, and we can see people logging in and out of shared bike apps. But are people really drawn to （被…所吸引）the idea of exercise and green transportation all of a studden? Some people have tried Mobikes lately, and they didn’t particularly like Mobikes. They think the first generation Mobikes, the ones without baskets, are designed for athletes. They are vary hard to ride, and the seat is not adjustable（可调节的）. Then, they tried the yellow Ofo bikes. They are easier to ride than Mobikes, but theydon’t usually have baskets, and you need to enter the password by hand, instead of scanning a QR code and having the lock open automatically like with Mobikes. We appreciate that there are shared bikes on the roads. They have saved us a lot of time during emergency situations, and on beautiful, clear days. We do enjoy riding them outside the city. But from what we’ve seen in our friend circles, people have been giving them endless praises, while we still saw some obvious flaws（缺陷）. In our experience, there has never been a unanimous（一致的）decision on anything in public opinion. It makes us wonder whether these people really like riding shared bikes or are just saying this to agree with others. When we asked them individually, a friend of us, Lisa, secretly told us she tried the bikes to fit in（融入朋友圈）. She doesn’t like bikes and finds city’s roads too harsh（拥堵）for bike riding. But the only way to hang out（出去闲逛）with her friends was riding out of town together. To join in social activities, she had to pick up bike riding again. Another young man, Simon admitted that he started talking about and forwarding information（转发信息）on thared bikes to appear cool and fashionable to friends. He started paying attention when Mobikes first launched（推出）. These views will give us something new to think about when we ride bikes again.88. Are shared bikes very popular in our cities nowadays?89. You don’t have to scan a QR code when using Mobikes, do you?90. What do you need to do when you want to ride a Ofo bike?91. Why did Lisa sometimes ride a shared bike?92. How did Simon show his coolness and fashion to his friends?93. Why do many people like to ride shared bikes?Ⅶ. Writing（作文）（共20分）94. Shanghai Students’Post is asking for the comments on“New Century English”textbook. Write a passage of at least 60 words for Shanghai Students’Post（上海学生英文报社向中学生征集对现行中学英语教材《新世纪英语》的评价和建议。

21版新教材高中英语必修第一册练习--UNIT 5 Part 3

Part 3 Reading for Writing, Assessing Your Progress & Video Time基础过关练Ⅰ.单词拼写1.A Dream of Red Mansions(《红楼梦》) is my favorite literature (经典作品).2.They would try to meet their customers' various (要求).3.His (词汇)was sound and his grammar was excellent.4.I'd appreciate it if you could give us some (具体的) examples.5.The idea of the (间隔) year is getting popular around the world.6.French is not his n tongue though he can speak it fluently.7.He always did well at school d doing part-time jobs every now and then.8.Women in our country enjoy e rights with men.9.She gave an exact and clear d of the accident.10.It is said that the short English film is mainly r to the development of our school.Ⅱ.选词填空1.I found it difficult to the truth the person.2. a few savings I have no other money.3.We this house that one and find this house is better.4.Children their parents for food and clothing.5.This table too the door, so it gets in the way.6.The air is rather thin here, but you'll it in time.7.No other organisation was able or willing to the job. Ⅲ.单句语法填空1.The gap Apple and other tech firms is now likely to narrow.2.The scenery was so beautiful that it was almost description.3.There is a vase (date)back to the Song Dynasty in this museum.4.Good and experienced teachers are always great demand in our school.5.The house which he paid 200,000 yuan is now worth 350,000 yuan.6. (listen) to English radio programs helps him get used to how fast native speakers talk.7.After a month of training,he became equal the work as a bus driver.8.The workers (struggle) against bad working conditions for a long time since 2018.9.He used (live) in a large city, but now he has got used to(live) in the quiet village.10.As far as I'm concerned, men and women must be treated (equal) in education and employment.Ⅳ.完成句子1.我寻找我丢失的书已经三天了,但是我仍然没有找到它。

Part 3 Reading and Writing[2]

Part 3 Reading and Writing (第三部分读写)Ⅸ. R eading comprehension (阅读理解): (共58分)plete the following dialogue with proper sentences in the box (选出适当的句子完成下列对话): ( 6分)A: Excuse me, sir? 72B: Yes. What can I do for you, young man?A: Some of my classmates want to go to Beijing for a short visit. 73 I want to know if you have four days’ trip.B: We certainly do. There are quite many such trips. 74A: Well, we are going to visit some famous places such as the Great Wall, the Palace Museum, etc.B: They are all places of interest in Beijing. 75A: Well, we still have three more days before our holiday begins. 76B: Oh, I see. How are you going there?A: 77B: Well, there are two kinds of trips: package(全包式) and self-service(自助式).A: I think we’ll take the self-service.B: All right. Here is the information about the trip and it will help you.A: Thank you very much.B: You are welcome.B. True or False（判断下列句子是否符合短文内容，符合的用“T”表示，不符合的用“F”表示）: ( 6分)What a cold winter! How wonderful it would be if there was a fire! Fire keeps us warm. But fire is very dangerous sometimes, and can kill us.November 9 is National Fire Safety Day. It’s a time for us to learn a lot more about fire, especially what to do if we are caught in a fire.Call 119Never try to put out a fire yourself, even if it is a very small one! Get help from your parents or call 119. Tell 119 where you are and what is on fire. Listen to 119’s instructions.Keep down close to the floorIf there is a lot of smoke in your room, keep down close to the floor. There is less smoke down there, so it’s easier to breathe() and see where you are going. If you don’t, the smoke may kill you before the fire does.Don’t use the elevatorNever use the elevator during a fire. Always use the stairs. An elevator may stop at the floor where the fire is burning. It may also go wrong and keep you inside.Don’t go backNever go back into a burning building! Even if you have left your pet or favourite toy inside, don’t go back for it. Don’t worry about your pets. Animals have a very good sense of smell. They often get out of the building before people!78. National Fire Safety Day is on November 9.79. If you smell smoke or see a fire, you should call 120.80. If there is a lot of smoke in your room, you should keep close to the floor so that you can keepaway from the fire.81. You mustn’t use stairs during a fire because it may catch fire as well.82. Animals have a good sense of smell.83. If your pet is inside the burning room, go back to get it as quickly as you can.C. Choose the best answer（根据短文内容，选择最恰当的答案）: ( 6分)84. Where can you find the information on elephants?A) On pages 517---528 B) On pages 529---615C) On pages 616---619 D) On pages 493---49685. If you want to know more about Chinese film star Jackie chan, where should you begin yoursearch?A) POSTAL INFORMATION on page 1033 B) ACTORS AND ACTRESSES on page 385C) ENVIRONMENT on page 80 D) NATIONAL PARKS on page 74786. One who likes surfing can find the information about how to surf on pages __________.A) 142---144 B) 841---873C) 884---978 D) 517---52887. If you are interested in Thomas Edison, you may search ___________.A) DISCOVERIES AND INVENTIONS B) ART, FAMOUSC) POPULATION D) EDUCATION88. You can find “Thanksgiving Day ”on pages __________.A) 841---873 B) 108---109C) 284---321 D) 513---51689. In which part can you find the map of Hong Kong?A) FLAGS OF THE WORLD(COLOUR)B) MAPS(COLOUR)C) DISCOVERIES AND INVENTIONS D) POSTAL INFORMATIOND. Choose the words or expressions and complete the passage（选择最恰当的单词或词语完成短文）:（14分）Overhead bridges can be seen in many parts of Singapore, in the places where traffic is very heavy and crossing the road is not safe.These bridges can make people cross roads safely. Overhead bridges are used very much in the same way as zebra crossings(斑马线).They are more efficient(效率高的), 90 less convenient because people have to climb up a lot of steps. This is inconvenient to the old. When people use an overhead bridge, they don’t hold up traffic. But when they cross a 91 road using a zebra crossing, traffic is held up. This is why the government has built many overhead bridges to help people on foot and 92 traffic moving at the same time.The government of Singapore has 93 a lot of money building these bridges. For their own safety, people should be given hope to use them 94 rushing across the road. Old people may find it a little 95 climbing up and down the steps, but it is still much safer than walking across the road with all the moving traffic.Overhead bridges are very useful. People, both old and young, should 96 use them. This will stop accidents from happening sometimes.90. A) though B) or C) if D) till93. A) wide B) narrow C) busy D) free91. A) see B) keep C) find D) feel92. A) used B) made C) spent D) borrowed94. A) full of B) fond of C) in spite of D) instead of95. A) difficult B) different C) worried D) excited96. A) almost B) always C) nearly D) hardlyE. Read the passage and fill in the blanks with proper words（在短文的空格内填入适当的词，使其内容通顺，每空格限填一词，首字母已给）:（14分）When you visit England, you must know about a few of their laws.The f 97 one is about drinking. You may not buy alcohol(酒) in the country if you are under 18 years old. Your friend can’t buy it for you, e 98 .The second, is about smoking. If you are under 16 years old, you are not allowed to buy cigarettes.The third is about crossing the road. Be careful. The traffic moves on the l 99 side of the road in England. U 100 crossing for walking when you cross the road.The last is about l 101 . You can’t throw away waste things in a public place. When you have something to throw away, please put it in your p 102 and take it home, or put it in a dustbin. Although the laws are strict, the police are very kind. If you have any problems, just ask the police for help. They will be p 103 to help you.F. Answer the questions（根据短文内容回答下列问题）: ( 12分)Do you ever worry about taking exam? Do you sometimes forget what you have studied? How many times have you studied English words only to forget them the next day? Music may be able to help you. Some researchers have shown that if you listen to classical music, especially by Mozart, while studying, it will improve your ability to remember. This is called “Mozart Effect”. Does it work with all kinds of music? Researchers have tried it with other kinds of music such as pop and country music, but they don’t seem to have the same effect. It seems that the rhythms(节奏) of classical music can help develop one’s memory. However, the improved memory only lasts a short time.What can you do to improve your intelligence over a long period of time? It seems thatlearning to play an instrument is helpful, especially for improving math skills. Scientists think this is because the area of our brain that calculates(计算) rhythm is also the same place where we store our math knowledge. So, if you want to become more intelligent, go to a musical class!104. What type of music may help improve your memory?.105. What does the “Mozart Effect” mean?.106. Why doesn’t pop music have the same effect?.107. What should you do to help you improve your math skills?.108. Why does the writer encourage us to have music classes?.109. How do you like the idea of listening to music to improve your memory?.Ⅹ. Writing (写话): (共16分)110. Write a passage of at least 60 words on the topic “My Free Time” ( 以“我的课余时间”为题写一篇不少于60个词的短文，标点符号不占格。

人教版高中英语选择性必修第二册UNIT1 Part 3 练习含答案

Part 3 Using Language,Assessing Your Progress&Video Time基础过关练Ⅰ.单词拼写1.(2020天津)“Small does not mean weak,sir,” she(辩解)herself.2.(2019天津)I thought anything(抽象的)left too much room for argument.3.The player's o performance left a deep impression on everyone present.4.He is outgoing.B,he is kind.He always steps up whenever someone needs help.5.To adapt to the rapid economic development,China has put forward some new(观念)of development.Ⅱ.单句语法填空1.(2024山西跨市联考)The sun was shining(brilliant), with clouds dancing in the blue sky.2.(2023北京)In fact,universities often shift emphasis from teaching other ranking factors.3.All our policemen are trained to defend themselvesknife attacks.4.The probable relationship between the speakers is shop (assist)and customer.5.It has been argued that(gift)children should be grouped in special classes.6.In the beginning,he asked if I could assist himlearning how to use chopsticks.7.I(vivid)remember walking into a room and hearing a child's beautiful singing when I was four.8.And,as so often in China when someone comes up with a good idea,many others flood in and price wars break.Ⅲ.一词多义1.Garden tools can be dangerous if carelessly handled.2.You have to turn the handle and then pull it towards you.3.I subscribe to the view that children benefit from being independent.4.Every year I subscribe to some English magazines for my daughter to read.5.For a moment,I was infected by her fear of the exam.6.Officials say that few citizens are infected with the virus owing to effective prevention now.Ⅳ.完成句子1.一位新经理将负责这个部门。

人教版高中英语选择性必修第二册UNIT2 Part 3 练习含答案

Part 3 Using Language,Assessing Your Progress&Video Time基础过关练Ⅰ.单词拼写1.Each of the challenges will need the i and skills of multiple team members.2.Mum always worked out the household (预算) according to what we could afford.3.(2021浙江)And his dad,Albert,took the money my dad earned and used it to pay family(开销).4.(2020全国Ⅱ)Studies show that friendlier communication leads toa happier workplace,and emoji can contribute directly to that positive(结果).Ⅱ.单句语法填空1.Mum is busy cooking,so you should behave(you) now.2.Only being optimistic the life can one get over difficulties.3.We will repair the car our expense if it breaks down within the first year.4.His visit intended to(strength)ties between the two countries was a big success.5.We(sincere)hope to cooperate you,and we will supply you with the best products and service.6.(2021北京)You should be able to work well in a team and adapt an international working environment.7.To improve the(competent)of the elderly in terms of technology,the supply of senior-friendly products will be increased.8.“The result was very.I was shocked andat that time,but at the same time it made me cherish my sporting life even more,” the famous sports star said.(depress)9.(2024浙江杭州一模)Living in a van frequently involves being close to the outdoors(surround)by the beauty of nature.10.There is no(deny)that the technology will have a huge impact on everyday life.Ⅲ.一词多义1.The boys had a long talk,but it brought them littlecomfort.2.These football shoes are designed for comfort and performance.3.Judy comforted herself with the thought that it would soon be spring.4.It was a comfort talking to you when I felt sad and frustrated.Ⅳ.完成句子1.我的确希望你能在烹饪比赛中取得优异成绩。

pet part3口语例题

pet part3口语例题以下是一个关于PET Part3口语练习的例子，你可以根据自己的情况进行参考和练习：题目：描述一个你参加过的跑步比赛。

口语练习：I remember the marathon I participated in last year. It was a big event with thousands of runners participating. The race was held in the city center and the streets were filled with people cheering for the runners.The race started at 7am and I was among the first wave of runners. The atmosphere was electric and everyone was full of energy. As we ran, I could see the city waking up. People were getting ready for their day, while we were sprinting down the street.The course was challenging, with lots of ups and downs, but I managed to keep up a good pace. About halfway through the race, Istarted to feel tired and my legs were getting heavy. But I pushed on, knowing that I couldn't give up now.Then, about three quarters of the way through the race, I saw a runner ahead of me collapse on the ground. I immediately stopped and went to help him. Some other runners also came to assist and we helped him up and encouraged him to keep going.In the end, I didn't win the race, but I finished it with a smile on my face. The experience was more valuable to me than any medal. It taught me the importance of helping others and not giving up when things get tough.。

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[3－1]. 单组元流体的热力学基本关系式有哪些？
[3－2]. 本章讨论了温度、压力对H、S的影响，为什么没有讨论对U的影响？
[3－3]. 如何理解剩余性质？为什么要提出这个概念？
[3－4]. 热力学性质图和表主要要哪些类型？如何利用体系（过程）的特点，在各种图上确
定热力学的状态点？
[3－5]. 推导以下方程

VTTpVS⎟⎠⎞⎜⎝⎛∂∂=⎟⎠⎞⎜⎝⎛∂∂， pTpTVUVT
−
⎟⎠⎞⎜

⎝

⎛

∂
∂

=
⎟⎠⎞⎜

⎝

⎛

∂
∂

式中T、V为独立变量
[3－6]. 试证明
(a)以T、V为自变量时焓变为

VVpVTpTTTpVCHTVVVddd
⎥⎦⎤⎢

⎣

⎡
⎟⎠⎞⎜
⎝

⎛

∂
∂

+
⎟⎠⎞⎜

⎝

⎛

∂
∂

+
⎥⎦⎤⎢

⎣

⎡
⎟⎠⎞⎜
⎝

⎛

∂
∂

(b)以T、p为自变量时焓变为
VVTCppTCVHppVVddd⎟⎠⎞⎜⎝⎛∂∂+
⎥
⎥

⎦

⎤

⎢
⎢
⎣

⎡

⎟
⎟

⎠

⎞

⎜
⎜

⎝

⎛

∂
∂

[3－7]. 试使用下列水蒸汽的第二维里系数计算在573.2K和506.63kPa下蒸汽的Z、RH及
。
R
S

T/K 563.2 573.2 583.2
-13
molcm/⋅B
－125 －119 －113

[3－8]. 利用合适的普遍化关联式，计算1kmol的1，3－丁二烯，从2.53MPa、400K压缩至
12.67MPa、550K时的
UVSHΔΔΔΔ,,,
。已知1，3－丁二烯在理想气体状态时的恒压热容

为：，1，3－丁二烯的临
界常数及偏心因子为＝425K，＝4.32MPa，Vc＝221×10
25110388.710228.2738.22TTCigp−−
×−×+=
-1-1

KkmolkJ⋅⋅

cTc
p
-6
13molm−
⋅
，ω＝0.193

[3－9]. 假设氯在300K、1.013×105Pa下的焓值和熵值为0，试求500K、1.013×107Pa下氯
的焓值和熵值。
[3－10]. 试用普遍化方法计算二氧化碳在473.2K、30MPa下的焓与熵。已知在相同条件下，

二氧化碳处于理想状态的焓值为8377，熵为25.86。
1molJ−⋅-1-1
KmolJ⋅⋅

[3－11]. 试计算93℃、2.026MPa条件下，1mol乙烷的体积、焓、熵和内能。设0.1013MPa，

1
－18℃时乙烷的焓、熵为零。已知乙烷在理想气体状态下的摩尔恒压热容
()
1263KmolJ10358.7310304.239083.10−
−−
⋅⋅×−×+=TTC
ig

p
。

[3－12]. 1kg水蒸汽装在带有活塞的钢瓶中，压力为6.89×105Pa，温度为260℃。如果水蒸
气发生等温可逆膨胀到2.41×10
5
Pa。问蒸汽作的功为多少？在此过程中蒸气吸收的热量为

多少？
[3－13]. 一容器内液态水和蒸汽在1MPa压力下处于平衡状态，质量为1kg。假设容器内液
态和蒸汽各占一半体积，试求容器内的液态水和蒸汽的总焓。

[3－14].
κ
和β分别是压缩系数和膨胀系数，其定义为TpVV⎟⎟⎠⎞⎜⎜⎝⎛∂∂−=1κ和pTVV⎟⎠⎞⎜⎝⎛∂∂=1β，

试证明
0=⎟⎠⎞⎜⎝⎛∂∂+
⎟⎟⎠⎞⎜
⎜

⎝

⎛

∂
∂

p
T

κβ
。对于通常状态下的液体，κ和β都是T和p的弱函数，在T，p

变化范围不是很大的条件下，可以近似处理成常数。证明液体从（T
1，p1）变化到（T2，p2
）

过程中，其体积从V
1变化到V2
。则)()(ln121212ppTTVV−−−=κβ。

[3－15]. 在T－S图和lnp－H上示意性地画出下列过程
（1）过热蒸气等压冷却，冷凝，冷却成为过冷液体；
（2）饱和蒸气可逆绝热压缩至过热蒸气；
（3）接近饱和状态的气液混合物，等容加热、蒸发成过热蒸气；
（4）饱和液体分别作等焓和等熵膨胀成湿蒸气。
（5）过冷液体等压加热成过热蒸气。
[3－16]. 空气在膨胀机中进行绝热可逆膨胀。始态温度T
1为230K、压力p1
为101.3×105Pa。

（1）若要求在膨胀终了时不出现液滴，试问终压不得低于多少？
（2）若终压为1.013×10
5
Pa，空气中液相含量为多少？终温为多少？膨胀机对外做功多

少？
（3）若自始态通过节流阀膨胀至1.013×10
5
Pa，终温为多少？