期末素质评估-【探究在线】2026-2027学年九年级上册英语高效课堂导学案（人教版·新教材）

期末素养评估 （时间：100分钟满分：100分) I.（渭南期末)完形填空。(10分) 12 Ryan and Ahmed sat on their bicycles at the start B:Well,I love pop music and rock music.They both of the cyclocross course(自行车越野赛道).Ahmed have certain energy that I love.What about you, had been 1 in cyclocross for three years,but this Alfred? was Ryan's first race.Ahmed explained the importance A:I enjoy rock music as well,but I like country mu- of practising and 2 a plan for them to practise to- sic best.13. gether. B:That's interesting.So,what kind of concert is it to- Practising was 3.Ryan soon got bored with morrow?Is it a rock concert? working on the same skills over and over again.When A:Yes.It's a rock concert,and the band is from they were practising,he 4 more time doing tricks America.They are well known for their exciting with his bike than listening to Ahmed's tips. shows. The big race day 5 arrived.Bang!The starting B:So wonderful！14. gun went off.The boys rushed off the starting line. A:Yes.The band is called“Let's Rock” When Ryan reached the first obstacle(障碍物)，he B:Really?"Let's Rock"is actually one of my favou- 密 jumped off his 6 and landed hard on his foot.Next, rite bands.I can't believe they will perform here. 尔 he had to get his bike onto his shoulder.Ryan could 15. not remember 7 Ahmed said about shouldering the A:That sounds like a fantastic plan,Jean.I'd love to. bike.He got his bike off the ground.As he ran,the A.I'm a big music fan. bike's 8 pressed down on his shoulder.Before he B.I often listen to their songs. knew it,he was lying face-down on the ground. C.Do you know the name of the band? Ahmed reached down to help Ryan 9.Ryan D.I think that they are all famous singers. was thankful that Ahmed cared more about him than E.So,what kind of music do you enjoy listening to? about the race. F.Would you like to go to the concert with me, He said to Ahmed,"You were right,Ahmed. Alfred? 封 Cyclocross is about more than strength and speed.Can G.I find it very relaxing and I often listen to it be- we spend 10 more months training together?I want fore bedtime. to finish my next cyclocross race！” ( )1.A.competing B.spreading Ⅲ.阅读理解。（40分) C.discussing D.rushing A(大理期末) 茶 ( )2.A.ran away B.stood for Chinese people were already enjoying maths games C.set up D.suffered from and toys thousands of years ago.Let's take a look! ( )3.A.hard B.magical Chinese nine linked rings C.rapid D.powerful puzzle(九连环) ( )4.A.reused B.escaped The nine linked rings puzzle is C.supposed D.spent usually made up of nine rings con- )5.A.mainly B.finally nected to a handle.Players have to C.necessarily D.generally unlock all the rings of the handle to ( )6.A.truck B.factory win the game. 洲 C.instrument D.bike An early record of this type of )7.A.how B.what C.when D.why puzzle was first found in Strategies of )8.A.form B.height the Warring States(《战国策》)from C.weight D.energy the Western Han Dynasty. )9.A.on business B.at once C.at a time Tangram(七巧板) D.in a way )10.A.a few B.few A tangram is made up of seven C.a little pieces of different shapes.People D.little Ⅱ.（芜湖月考）补全对话。（其中有两项多余） can make shapes of animals,people or things with all pieces.To do it, (10分) they have to know about geometry A:Hi,Jean.Guess what?There will be a fantastic (几何). concert tomorrow evening. According to China Science B:Oh,wow.A concert?That sounds so cool,Alfred. 11. Daily,the game was popular in the Ming and Qing Dynasties. A:Me too.Music has a way of touching our hearts. 一探究在线·九 Luban lock cause a cute robot brought my meal to my door, The Luban lock was first crea- Reznikova said.The workers just put the food into the ted by the well-known Chinese char- robot's "stomach"and typed in the room number.The robot could take the lift itself and go to the right room. acter Lu Ban 2,000 years ago. "This service saved workers'time.It was also safer be- It's said that Lu used six wooden cause guests didn't have to meet anyone,"Reznikova pieces to make a toy that looks like a said.She also enjoyed the robot's friendly words like, lock for his son.It's hard to divide “Hello！Your meal has arrived!”She thought it was the six pieces.Now,there are Luban funny.The robot made her stay more enjoyable. locks made up of nine or more Reznikova also experienced Augmented Reality pieces. (AR)at the Chimelong Safari Park(长隆野生动物 世界)in Guangzhou.There,she used the“Chimel-- Huarong pass ong AR Zoo”on her phone..“The app uses AR to let Huarong pass is a traditional visitors interact (with the park's wildlife in a Chinese block-moving puzzle,get- new way,”she said. ting its name from a story in The Ro- Using the app,she could see virtual(虚拟的) mance of the Three Kingdoms.Every animals guide her."It was interesting.The app made block has the name of a character in sure I didn't miss any part of the park,"she said.As the book,like Cao Cao,Zhang Fei she walked through the park,the app told her fun facts about each animal she met. and Zhao Yun.To succeed in the "I felt a sense of comfort during my trip in Chi- game,players have to move the na,”Reznikova said. blocks to get“Cao Cao”out. China has been developing fast in recent years. )16.When did nine linked rings puzzle first ap- Its progress in technology has improved people's lives. pear? It also makes China an attractive place for visitors A.In the Ming Dynasty. from around the world. B.In the Qing Dynasty. ()21.Why did Reznikova decide to visit China? C.In the Western Han Dynasty. A.Because she was interested in the tech- D.In the Eastern Han Dynasty. nology in China. ()17.If Gina wants to make a toy cat,she should B.Because of China's 240-hour visa-free policy. choose C.Because she enjoys Chinese hotels. A.Chinese nine linked rings puzzle D.Because she likes the food in Guangzhou B.Tangram and Shenzhen. C.Luban lock ()22.What did the hotel workers need to do before D.Huarong pass the robot sends meals? ()18.Which of the following is NOT TRUE? A.Carry the robot to the guest's floor. A.Nine rings are linked by a handle. B.Put food into the robot and type in the B.There are seven pieces of different shapes room number. in a set of Tangram. C.Teach the robot to say friendly words. C.Luban made the lock for his daughter as a D.Check the guest's ID card. toy. )23.What could the“Chimelong AR Zoo”app D.These four games require maths knowl- NOT do for Reznikova? edge. A.Show virtual animals to guide her. )19.To win in the game Huarong pass,which B.Tell fun facts about the animals she met character needs to be got out? C.Help her book tickets for the safari park. A.Zhang Fei. B.Zhao Yun D.Make sure she didn't miss fun parts of the C.Guan Yu. D.CaoCao. park. ()20.What is the main purpose of the passage? ( )24.What can you learn from this passage? A.To introduce some ancient maths games. A.Reznikova visited Guangzhou and Shen- B.To teach us to play games. zhen in July. C.To compare activities in different dynas- B.The robot can take the lift itself. ties. C.Reznikova can use AR to play games with D.To list numbers of toy pieces in the games. animals in Chimelong Safari Park. B(南阳期末) D.Reznikova felt a sense of pride during her Sofia Reznikova is a 31-year-old visitor from Rus- trip in China. sia.She was amazed by the technology in China.She )25.What may the passage be? first knew about China's240-hour visa--free（免签) A.A poem. B.A song policy online.After watching videos about travelling in C.A novel. D.A piece of news. China,she became more interested in Chinese tech- C(安阳期末) nology. Many students think maths is difficult.But with the In June,Reznikova visited Guangzhou and right ways,you can learn it well and even have fun. Shenzhen to see China herself.She really liked the ro- Understand the basics first.Before you start sol- bot helpers at the hotel."Ordering food was fun be- ving hard problems,make sure you know the basics re- ally well.If you don't understand these,it will be im- 年级英语（上）一 19 possible to do more difficult maths problems.Practise C.How to Make a Maths Study Plan simple problems every day.Spend about 15 minutes a D.Useful Ways to Learn Maths Well day on this,and you'll get better at the basics quickly. D(忻州期未) Practise regularly（定期地).Maths is like a Music can make us feel all kinds of different feel- game-the more you play,the better you get.Don't let ings.There might be a certain song that reminds you of a day pass without maths practice.Your maths book a moment in your life.Maybe it's the song that was has lots of problems.Try to do at least 10 problems playing when you last saw your best friend.But ac- each day.If you find a type of problem difficult,do cording to new research,music may be able to do more of them.For example,if you have problems with more than just bring back memories.31. distance and speed,keep practising them until you To know about the role of music,researchers in understand them well. the US did a study.32. Those stories were de- Make a study plan.It's important to plan your scribed as“emotionally neutral(情绪中立的)”.A maths study time.Decide when you will study maths day later,the people were asked to think about these each day.It could be right after school or in the eve- stories while listening to different kinds of music. ning.Write it down on a piece of paper.For example, 33.They also had MRI scans(磁共振成像扫 “I will study maths from4:30to5:30 every day.” to record their brain activity while listening and This way,you can remember to study and you can fo- thinking about the stories.Then the next day,they cus better. were asked to recall the stories without listening to Ask for help.If you don't understand something music. in maths,don't be shy.Ask the teacher or classmates. 34. When people listen to different kinds of They will be happy to help you.Maybe your teacher music,their memories would be different.For exam- can explain it in a different way that you can under- ple,if they were listening to happy music when recall- stand.You can also join a study group with friends. ing the story,they often remembered the story in a You can work on maths problems together and help happy way.This happy feeling lasted,even when they each other. recalled the story later and the music was not playing. Remember,learning maths MATHEMATICS Researchers said some pieces of music are con- takes time.But if you try the ways nected to important life events.35.They also said above,you will see that maths is not music could help people with emotional illnesses. so hard after all,and you will get %(0>1 In the future,maybe more roles of music can be better at it day by day.So why not found. have a try? A.You may enjoy listening to music. ()26.Why is it important to understand maths bas- B.The study found a clear relationship. ics first? A.Basics take less time to practise. C.These included happy,sad or quiet music. D.In it,people were asked to memorize short sto- B.Hard problems need basics to solve ries. C.Simple problems help build confidence. E.It could even influence the way we remember D.Teachers always check basic knowledge. ()27.Why does the writer compare maths to a game? the past. F.That's why hearing them again can bring back A.Because both of them are easy. B.Because both of them need practice. strong feelings. C.Because maths problems are as fun as V.根据汉语意思完成英语句子，每空一词。(5分) games. 36.他打扫房间时，跟着自己最喜欢的歌一起唱。 D.Because solving maths problems needs game He his favourite song skills. while he cleaned his room. ()28.What can a study plan help you do according 37.他每天练习，为了在英语口语方面赶上别人。 to the passage? He practises every day DRemember to study maths. others in English speaking. 2Focus better on studying. 38.这首优美的歌让我们开心地用脚打节拍，享受 (3Finish homework faster. 美好时光。 ④Get a study partner. The beautiful song makes us A.①②B.①③C.②④D.③④ happily and enjoy the wonderful time. ()29.Why is the sentence "So why not have a 39,我们可能会遇到一些困难，但我们绝不应该轻 try?"written in the last paragraph? 易放弃。 A.To ask the readers the reasons why they We may some difficulties, can't learn maths well. but we should never give up easily. B.To tell the readers the reasons why they 40.如果你一直工作不休息，你迟早会把自己累垮的。 should learn maths well. If you keep working without any rest,you will C.To encourage the readers to follow the tips sooner or later. on learning maths. V.(临沂期末)任务型阅读。（10分) D.To advise the readers to spend more time “The Five-Starred Red Flag flies high.” learning maths. Whenever we hear the song,we will sing along.The ()30.What's the best title for the passage? song is called Ode to the Motherland(《歌唱祖国》). A.Why Maths Is Difficult for Students It was written by Wang Xin. B.When to Practise Maths Problems On 1 October,1949,Wang Xin attended the 20 一探究在线·九 Founding Ceremony(开国大典)of the People'sRe now there are many things,such as markets,restau- public of China.He was deeply moved and decided to rants,47. and different shops. write a song at once for New China with his love and In the past,there were many old houses and peo- pride.He had many ideas but none was good enough ple always 48. litter behind the houses.Now for him. everywhere is clean and there is a park in my home- One day in September 1950,on the way to Beijing town.It is always beautiful all year round.In spring, Railway Station,Wang Xin walked past Tian'anmen the grass 49. trees make the park a green Square.The moment he saw the Five-Starred Red Flag world.In summer,people often have a talk with flying in the wind,a few words for the song came into 50. friends or family under the trees.In au- his mind.On the train back to Tianjin,when he saw the fields and mountains outside the window,the main tumn,everything in the park is yellow.Children like part of the song began to take shape,"Over the taking photos here.In winter,when it 51. mountains,.across the plains(平原). children can make snowmen and have snowball games When Wang Xin arrived home,he said with ex- here.They are always pleased. citement,“I made it！I made it!”He completed the In the park,there is a lot of new exercise equip- whole song right away.The next morning,he went to a ment to 52. people's needs.The old people local newspaper,and hoped to get the song pub- love to go downstairs together to exercise.They all en- lished.But it wasn't accepted. joy the 53. air and beautiful scenery there.Of However,Wang Xin didn't give up.He led a mu- course,the children will not miss such a good place. sic group to perform the song in different places.The There they can do whatever they want,such as song really brought people power,pride and more love 54. volleyball or hide-and-seek. for the country. After seeing those changes around me,I know In September 1951,Ode to the Motherland was everything is developing 55. I believe we finally published in the People's Daily and got popular will have a wonderful future. across the country.From then on,it was sung during Ⅶ.书面表达。(15分) many important national events. Wang Xin once said,"I've written many works 从生物结构的解析、科幻小说的兴起、太极奥 in my life,but I believe I've only written'two songs'. 秘的探索、“嫦娥四号与玉兔”的中国式太空浪漫， One is Ode to the Motherland,a song written with mu- 到智能家居的普及，从古至今，人类对科学的追求 sical notes,and the other is a song written for the 从未止步，科学的不断发展给我们的生活带来了很 motherland with all my heart." 大的影响。请根据以下要点，以“Science Shapes 41.When did Wang Xin attend the Founding Ceremony Our Lives'”为题，写一篇英语文章。 of the People's Republic of China? 要点：(1)科学在我们的生活中很重要，它影 响着我们的生活； 42.What two scenes reminded Wang Xin to create the (2)上个月爸爸决定买一辆电动汽车； main part of Ode to the Motherland? (3)我发现电动汽车使用电做动力，花费更少； (4)电动汽车更安静，有利于保护环境； (5)政府鼓励人们使用电动汽车； (6)我认为… 43.What influence did the song Ode to the Motherland 要求：(1)词数80左右； bring? (2)内容涵盖要点。 参考词汇：电动汽车the electric car;汽油车a petrol car;电electricity;动力power 44.What did Wang Xin mean by saying he only wrote Science Shapes Our Lives “two songs'”in his life? 45.(开放性设问)As a student,what can you do to express your love for the motherland besides sing- ing patriotic(爱国的)songs?? M.短文填空。（10分) 阅读短文，从方框中选择适当的单词并用其正 确形式填空。 throw;cinema;snow;satisfy;near; play;rapid;fresh;and;they There are many changes in my hometown.In the past,there was nothing 46. my home.But 年级英语（上）一Ⅱ.11.Thank you/... forget others'mistakes and we may be unkind to those 12.What are your (learning)habits/... people who hurt us. 13.Yes,it does/... In my opinion,it's necessary for us to have a 14.I'm used to drawing mind maps to organize what good memory if we want to live a better life. I've learnt/... 期中素养评估 15.See you (then/tomorrow)/.. I.1-5 BACBD 6-10 ACBDB II.11-15 CEADB II.16-20 BABBD 21-25 CDBAD III.16-20 CDCAB 21-25 DABCC 26-30 DADCD 31-35 DGAFE 26-30 DBACA 31-35 FBCEA IV.36.put off 37.came across 38.open up IV.36.keep in mind 37.live on 38.divided into 39.build up 40.take/make advantage/use of 39.is covered with 40.look up V.41.It's easier for you to focus on exactly what you need V.41.He studied at Wuhan University of Surveying and to learn. Mapping. 42.It helps you keep the study plan and remember 42.To make China's surveying and remote sensing a- more information. bilities better. 43.Because he thinks it can provide a way for students 43.He helped build hospitals Huoshenshan and Leish- to make the notes of their own. enshan. 44.Three/3.Limit the number of people,get yourself 44.They clearly found an opening in a bank. prepared,and pick a place,date and time. 45.I think Li Deren is a dedicated and great scien- 45.I prefer studying in groups because it helps me stay tist./.… motivated,stick to a plan,and better understand VI.46.has been 47.heroes 48.finishing 49.comfortable and remember information through discussion./.. 50.on 51.to share 52.Although/Though VI.46.methods 47.carefully 48.an 49.to get 53.successfully 54.the 55.him 50.yourself 51.but 52.works 53.Repeating VI. Changes in My Hometown 54.in 55.more interesting Since 2021,my hometown has changed a lot. VI.Dear Tom, First,the environment is better.There are clean wide I'm sorry to hear about your trouble with memori- roads and beautiful parks with green trees and flowers zing English words and the stress it brings.Here are everywhere.Second,living facilities have improved. some practical tips to help you.First,try to memorize Modern supermarkets and hospitals make our lives words in context,like sentences or short passages,in- more convenient.Third,people now live in new houses stead of isolated lists-it makes memorization easier. and streets are bright at night.Besides,we have more Second,review regularly using the "spaced repetition" cultural activities like going to libraries and clubs.Fi- method:go over words on the 1st,3rd,and 7th days nally,people are richer and happier.They smile more after you learn them.Third,connect words with stories and are always ready to help others.I love my home- or images;your brain remembers vivid things better. town and feel proud of these changes. Don't be too hard on yourself-progress takes time. Unit5素养评估 Communicate with your parents about your efforts,and I.1-5 ADBDC 6-10 ACDAB II.11-15 GCAFE they'll understand.Keep practising,and your marks III.16-20 DBCAB 21-25 BACAB will improve gradually. 26-30 BCCBA 31-35 DACEB Smith IV.36.Hundreds of fly to Unit4素养评估 37.result/lead in/to I.1-5 DBBCA 6-10 BCDAB II.11-15 CDBFA 38.is responsible for III.16-20 BDBCD 21-25 ABBCC 39.are looking to make 26-30 BCBBD 31-35 CBEAF 40.is used all over the world IV.36.wore him out 37.ran out of V.41.因此，几乎没有人有机会学习阅读。 38.happen to 39.mix up 40.went through 42.To produce books more quickly and cheaply. V.41.At first,its paint came off and there was something 43.In the twentieth century. wrong with the seat.At last,its chain kept getting 44.A much larger amount of information can be stuck,and the brakes didn't work well. stored in more varied forms on the internet than 42.They'd chat about their maths homework or the in books. coming sports meeting. 45.No,I don't.Because books are environmentally 43.The writer learnt to be more careful with things he/ friendly and they can protect our eyes from she loved. harm./.… 44.It's not just a bike-it's a part of his/her growing- VI.46.was born 47.great 48.to build up story (full of happy memories). 45.My grandma made a teddy bear for me.Every time 49.be punished 50.so 51.Suddenly 52.his 53.was invented 54.tools 55.for I hug it,I remember the nights she told me stories To Be an Inventor before bed.It makes me feel safe and loved./... VI. VI.46.more likely 47.to teach 48.from 49.or I dream of being an inventor because inventors 50.more actively 51.has found 52.connecting can change the world and make our lives better. 53.them 54.researchers 55.practical Many great inventions like smartphones have made A Good Memory communication easier and more convenient. A good memory plays a more and more important To become an inventor,I need to study hard, role in our study.It can bring us lots of benefits.On especially in science and maths,as they are the the one hand,a good memory often helps us achieve foundation of invention.I also should think creatively better grades.On the other hand,we can remember and observe carefully in daily life,since good ideas things more quickly and learn lessons more easily.So often come from real needs. we can have more free time to do the things we like. I hope my future inventions can help people However,we sometimes can have trouble with a solve problems and bring more happiness to the good memory.For example,it takes us a longer time to world. 24 一探究在线·九 Unit6素养评估 26-30 BBACD 31-35 CGABE I.1-5 BACDB 6-10 AABCA IV.36.make up ground on II.11.What are you doing 12.Yes,I am sure 37.take the lead over 38.set a record 13.Could you tell me something about rockets 39.Neither nor 40.high point of 14.What are they controlled by V.41.It was held from 28 July to 8 August,2023. 15.Your dream will come true one day 42.First,it used many high-tech products.Second,it IⅢΠ.16-20 CCADB21-25 BBDCA showed Chinese culture to the world. 26-30 DADBA 31-35 EDAGF 43.The mascot was“Rongbao”,a giant panda IV.36.falls asleep 37.for human beings 44.成都大运会不仅是一场体育赛事，而且是一次 38.can be made into 文化交流的机会。 39.in the near future 40.set foot on 45.DIt provided a platform for university students a- V.41.By the year 2100.42.A few months. round the world to compete in sports.(2It helped 43.Because these plants will produce the food,water athletes from different countries make friends with and air that we need. each other. 44.Special shoes VI.46.countries 47.really 48.bigger 49.of 45.I think living on Mars would be worse than living 50.touching 51.his 52.the 53.fails on Earth,because the food would not taste good 54.What 55.so and space travel would probably make many people V. Sports Spirit in Daily Life feel very uncomfortable. The Asian Winter Games remind us that sports VI.46.pride 47.shown 48.first 49.unusual spirit is not just for big events-it's for every day! 50.found 51.challenges 52.thinner 53.make My favourite sport is basketball.Whenever I play 54.because 55.its it,I feel energetic and excited.Doing sports is good for V. Space Exploration and Our Future both our physical and mental health.It helps us keep Space exploration will greatly change our future fit and makes us more confident. life.More space stations will be built on the moon,and From sports spirit,I learn the importance of per- humans will live and work on other planets one day. severance and teamwork.In a basketball game,even To achieve further space development,faster and when we are behind,we should never give up and safer spacecraft will be developed.Countries will coop- keep fighting.And only by working together can we get erate with each other and share advanced technology. success. Space exploration is very important for humans.It We young people should carry forward the sports can help us find new resources and expand our living spirit in daily life.Whether facing difficulties in study space.It also pushes forward human progress.I am loo- or challenges in life,we should stay positive and work king forward to the amazing future it will bring. hard to overcome them.Let the sports spirit light up Unit7素养评估 our daily lives I.1-5 DCABC 6-10 DABAB II.11-15 EAFDB 期末素养评估 III.16-20 ABCAD 21-25 BDABA I.1-5 ACADB 6-10 DBCBA II.11-15 AEGCF 26-30 ACDDA 31-35 EFDAC Ⅲ.16-20 CBCDA 21-25 ABCBD IV.36.Hats off to 37.dance to 26-30 BBACD 31-35 EDCBF 38.to look down on 39.young and old IV.36.sang along to 37.to catch up with 40.fair and square 38.tap our feet 39.come across V.41.Because it might help us/me think of wonderful 40.wear yourself out things. V.41.0n10 ctober,1949. 42.和一群人一起演奏音乐会帮助你和他们变得更 42.The first scene was the Five-Starred Red Flag fly- 亲近。 ing in the wind at Tian'anmen Square,and the sec- 43.Writing our/my experiences into songs. ond one was the fields and mountains outside the 44.We/I should write down what we/I remember. train window. 45.It can calm me down and make me relaxed when I 43.The song really brought people power,pride and feel nervous or tired./.. more love for the country. VI.46.received 47.musical 48.by 49.and 44.One was Ode to the Motherland written with musi- 50.chances 51.to join 52.himself 53.an cal notes,and the other was a song written for the 54.completely 55.performing motherland with all his heart. VII.Dear Tom, 45.I can study hard to make our country better and I'm happy to share my story about music with you. better in the future./I can respect the national Music plays an important part in my life.Among flag./... all kinds of music,I like pop music best. VI.46.near 47.cinemas 48.threw 49.and 50.their When I was in Grade Eight,I fell in love with 51.snows 52.satisfy 53.fresh 54.playing pop music.I remembered I heard a famous singer's 55.rapidly songs on the radio for the first time.The sweet lyrics Vu. Science Shapes Our Lives caught my attention at once.Since then,I've been a In recent years,science has developed at high big fan of pop music.In my free time,pop music is al- speed.And it plays an important role in our daily life. ways by my side.Whenever I feel stressed out or sad,I Last month,my father decided to buy an electric car.I listen to my favourite pop songs because they always found that it uses electricity as power,which costs encourage me and cheer me up right away.Thanks to less.Besides,electric cars make less noise when run- pop music,I've also made great progress in my stud- ning and are environmentally friendly.The government ies.Now I love it more and more. Yours, encourages people to use electric cars. Li Hua I think science makes our lives more convenient Unit8素养评估 and greener.We should learn more about science to I.1-5 BBADD 6-10 ACACD II.11-15 BGECA create a better future.Let's work hard to master scien- III.16-20 CADAD 21-25 DCDBA tific knowledge and make our world better 年级英语（上）一