包头专版2020中考英语复习方案阶段模拟测试03试题.docx

1、阶段模拟测试(三)(范围: 八年级下册时间:120分钟分值:120分)部 分第卷第卷总分总分人核分人一二三一二得 分第卷选择题 (共80分)第一部分听力(共两节,满分20分)听录音,根据各题要求选择最佳答案,并将答题卡上对应题目的答案标号涂黑,每项内容读两遍。第一节(共5小题;每小题1分,满分5分)听下面5段对话,选出与录音内容相一致的图片。1.2.3.4.5.第二节(共15小题;每小题1分,满分15分)听下面5段对话或独白。每段对话或独白后有几个小题,从题中所给的A、B、C三个选项中选出最佳选项。听每段对话或独白前,你将有时间阅读各个小题,每小题5秒钟;听完后,各小题将给出5秒钟的作答时间。

2、听第6段材料,回答第6至8题。6.What is Toms mother doing?A. Washing the car.B.Cleaning.C.Cooking.7.Where is Toms dad?A. In the garden.B.In the kitchen.C.In the room.8.Who is Kate talking with on the phone?A. Her grandparents.B.Her classmate.C.Her friend.听第7段材料,回答第9至11题。9.When did the woman go to China?A. Last spr

3、ing.B.Last summer.C.Last autumn.10.How long will the man and his family stay in China?A. For 10 days.B.For 15 days.C.For 20 days.11.What will the man probably do in China?A. Do some shopping.B.Take pictures.C.Go camping.听第8段材料,回答第12至14题。12.When will Martin arrive?A. At 9:00 this evening.B.At 9:00 to

4、morrow evening.C.At 7:00 this evening.13.What does Martin look like now?A. Short and thin.B.Tall and strong.C.Short but strong.14.Who will have a birthday party?A. Li lei.B.Martin.C.Nancy.听第9段材料,回答第15至17题。15.Whats the weather like in Galway in July?A. Its cold.B.Its cool.C.Its hot.16.Why does the wo

5、man suggest travelling around by car?A. Because she thinks its more convenient.B.Because she thinks its more popular.C.Because she thinks its more exciting.17.What can we get from the conversation?A. Galway is far away from the water.B.The man is more interested in Dublin.C.The man doesnt want to vi

6、sit a crowded place.听第10段材料,回答第18至20题。18.What do English people usually have for breakfast?A. Eggs or bread.B.Meat or fish.C.fruit or vegetables.19.When is afternoon tea?A. From 2:00 to 3:00.B.From 3:00 to 4:00.C.From 4:00 to 5:00.20.Why do some families like eating well in the evening?A. Because th

7、ey are usually busy in the day.B.Because they are hungry in the evening.C.Because restaurants are open in the evening.第二部分英语知识运用(共两节,满分30分)第一节(共15小题;每小题1分,满分15分)从每题所给的A、B、C和D四个选项中,选出可以填入空白处的最佳选项。21.We are going to invite foreign friends to take part in the celebration of the 70th anniversary of Chin

8、a.!A. Thats amazingB.Thats all rightC.Good luckD.Enjoy yourself22.Baotou, energetic city, has set up trade relations with lots of countries and areas.A. aB.anC.theD./23.Youd better hard from now on, you will fail in the exam.A. work; andB.working; orC.working; andD.work; or24.Jenny is afraid to trav

9、el by plane.She always feels when getting on it.A. nervousB.interestedC.relaxedD.happy25.Shall we stop and wait for others?Sounds good. I think they will catch up a few minutes.A. duringB.afterC.forD.in26.Excuse me, when did you leave Baotou?In August, 2017. I for about two years.A. have leftB.leftC

10、.have been awayD.was away27.Why was Jim late for work this morning?He got up late.A. nearlyB.graduallyC.hardlyD.probably28.I tried to make Alice her mind but I found it difficult.Well, I saw you that when I went past.A. changed; doB.changes; doingC.change; to doD.change; doing29.2020原创I must find my

11、 math book, or Ill have to buy a new .Let me help you!A. fictionB.dictionaryC.copyD.printer30.2019盘锦Our life greatly by 3D printing technology in a few years.A. will influenceB.influencesC.will be influencedD.is influenced31.On my way home, I saw an old woman fall down.I offered help first and then

12、the police.A. called upB.cared forC.cheered upD.found out32.I think it is really hard to make everyone with our products.Thats true. After all, different people have different requirements.A. simpleB.satisfiedC.similarD.silent33.Tom, youll feel tomorrow you go to bed early.OK, Mom. Ill go to bed at

13、once.A. asleep; ifB.sleepy; unlessC.sleepy; thoughD.asleep; because34.Shall we climb mountains tomorrow, Mom?It the weather. If its rainy, we will have to stay at home.A. waits forB.looks forC.decides onD.depends on35.Elizabeth, would you be so kind as to spare me a few minutes?, but I hope “a few m

14、inutes” wont turn into too long a time.A. It doesnt matterB.Thats kind of youC.Im afraid notD.I guess so第二节(共15小题;每小题1分,满分15分)阅读下面短文,从每题所给的A、B、C和D四个选项中,选出可以填入空白处的最佳选项。My parents usually celebrate a special day by enjoying a special kind of ice wine called Canadian ice wine.My mother 36 told me the s

15、tory of ice wine. To make it, people must freeze grapes on the vine (葡萄树). You might think this is strange, 37 it is true. Sometimes, a great new product is invented by accident. And thats exactly 38 we got ice wine.In the 1700s, in Germany, a man was away from 39 farm in autumn. The weather suddenl

16、y turned 40 and his grapes froze. When he tasted the grapes, to his 41, the grapes tasted so sweet. Then, he 42 to use these grapes to make some wine. Guess what? People really liked his wine. For two centuries, 43 was the only place making ice wine. Then a Canadian got the idea that this kind of wi

17、ne could be 44 in Canada. After all, the winters are cold in Canada and thats the main 45 for making ice wine. After hard work, some grape farmers 46 out the best process, and soon Canadian ice wine began to be sold all over the world.The story of ice wine got me thinking. What other inventions came

18、 about by 47?Its really hard to imagine the world 48 penicillin(青霉素) that has saved millions of lives. And the microwave has certainly changed the way we 49.Life is sometimes like that. Something even better comes along 50 we keep our eyes and mind open. 36.A. onceB.alsoC.onlyD.never 37.A. andB.butC

19、.ifD.so 38.A. whyB.whenC.howD.where 39.A. hisB.ourC.yourD.their 40.A. hotB.wetC.dryD.cold 41.A. sadnessB.surpriseC.worryD.shyness 42.A. refusedB.forgotC.decidedD.failed 43.A. GermanB.FrenchC.FranceD.Germany 44.A. foundB.producedC.soldD.ordered 45.A. requirementB.achievementC.instrumentD.development

20、46.A. gaveB.madeC.brokeD.found47.A. heartB.halfC.accidentD.secret 48.A. amongB.throughC.exceptD.without 49.A. cookB.sleepC.restD.exercise 50.A. becauseB.ifC.unlessD.though第三部分阅读理解(共15小题;每小题2分,满分30分)阅读下列短文,从每题所给的A、B、C和D四个选项中,选出最佳选项。AWhat are talented kids like? They are children with a special talent

21、 and they work hard.Name: Kati VargaAge: 13Country: HungaryTalent: chessI started playing chess when I was five years old. I took part in my first competition when I was in Grade Two. Today, I have more than a hundred medals in my room. One day, Id like to be the best in the world. I know Im on my w

22、ay.Name: Asif MalikAge: 12Country: IndiaTalent: paintingI started painting when I was only four years old. At first I painted trees and flowers. Now I paint portraits of my family. Ive already sold some of my paintings. I have a website and all my paintings are on it. Im going to an art school in Pa

23、ris when Im older.Name: Josh BrownAge: 14Country: BritainTalent: cookingI started cooking when my aunt sent me a cookery book on my birthday, when I was only ten. At first, I made cakes, but now I love making complicated meals for my family. I recently won a competition for the Young Chef of the Yea

24、r. One day, Im going to open my own restaurant.51.Kati Varga has played chess years since she started playing chess.A. fourB.sixC.eightD.ten52.Asif Malik paints portraits of his .A. familyB.friendsC.classmatesD.teachers53.According to the passage, which of the following can be true?A. Kati Varga too

25、k part in her first competition when she was in Grade Three.B.At first Asif Malik painted animals when he started painting.C.Josh Brown started cooking when his mother sent him a cookery book on his birthday.D.Josh Brown wants to open a restaurant one day.B(On the balcony)Juliet continued, “It is ju

26、st your name that is my enemy.You are yourself, whatever your name is.What is a Montague? It is not a hand or a foot or an arm.It is just a name.Oh, be some other name! Whats in a name? A rose would still smell as lovely if we called it something else”This was too much for Romeo.“If you say you love

27、 me, I will change my name.From now on I will never be Romeo.”(In the tomb)Romeo broke into the tomb and carried Paris into it. There he saw Juliet, who was still as beautiful as he remembered her. He couldnt understand why Juliet still looked so beautiful. He could not have imagined Juliet was stil

28、l alive and would soon wake up. He took her hand in his hand and kissed her cold face. Then he put the poison in a cup and drank it. He kissed Juliet again and fell to the ground. The poison was very strong and Romeo died quicklyHalf an hour later, Friar Laurence came to the tombHe couldnt believe i

29、t.Suddenly he found her waking up.“Good priest,” She saw him, “where is my husband? I did what you told me to do, and now I am awake.Your medicine worked.”“Poor Juliet!” cried the priest. “Something has gone wrong! Our plan did not work.Your husband is here, but he is dead! Come away with meHurry!”“

30、You go!” cried Juliet. “I will not leave my husband!”She saw Romeo was holding a cup and guessed he had killed himself with the poison.The cup was empty, but she held it to her mouth.She hoped she might be poisoned too.But she could hear the guards coming, she couldnt wait for the poison to work.She

31、 took a knife and killed herself.When the guards arrived, they couldnt believe their eyes. There was Juliet, who had been dead in the tomb for two days, bleeding and dead again.There was the man she was going to marry, lying dead.There was Romeo, who had killed Tybalt, also lying dead on the ground5

32、4.What do you think Romeo was like according to the passage?A. Clever and generous.B.Selfish and patient.C.Impatient and loyal.D.Stupid and careless.55.What was the priests problem?A. He was right on time.B.His watch didnt work.C.His plan went wrong.D.He was too sad to explain.56.What do the underli

33、ned words “the man” in the last paragraph refer to?A. Romeo.B.Paris.C.Tybalt.D.Laurence.57.What can be inferred from the passage?A. On the balcony, Juliet didnt know Romeos real name.B.Laurence came too late to prevent Juliet from killing herself.C.Romeo kissed Juliet and killed himself after seeing

34、 Juliets death.D.Romeo and Juliet killed themselves mainly because of the families fighting.CAt some point in life, many people develop a mental(精神的) problem.While most people get over it, for others it doesnt go away easily.The WHO says that about 20 percent of teenagers worldwide suffer from menta

35、l illness. Its thought that the number of teenagers with mental illness around the world will increase by half by 2020.It will become one of the main causes of illness, and even death.In China,the picture isnt bright,either.About one tenth of teenagers under the age of 17 have a mental health challe

36、nge.“The world is changing fast.Study and relationships have always caused stress, but today the stress is much higher than before,” the WHO said.A research center in Oxford University says that young people today have big stresses at school.For example,they experience bullying (欺凌). In a 2017 repor

37、t, the center noted that the Internet was a special source of stress. “Online, young people often see messages about perfection and this causes the young great uncertainty about their futures, ” says the center.Also, according to China Daily, Chinese people dont ask for help with their mental proble

38、ms. They fear that others will think less of them if they say that they are in mental trouble. Elaine Peng, a US mental health educator, makes a similar point.And in the UK, over three quarters of young people believe their mental problems have a social stigma. It is reported in 2017 that a quarter

39、of young people in the UK wouldnt ask for help if they developed a mental problem.Young people who dont ask for help for their condition may be creating problems for themselves in the future.Elaine Peng warned that, “If we hide our mental health,it may remain a problem forever.” “My message for youn

40、g people is, if you feel something is wrong with youask for help,” he told China Daily.58.Which of the following is NOT the cause of stress according to the passage?A. Heavy schoolwork.B.Being bullied at school.C.Some information from the Internet.D.Certainty about the future.59.Why dont Chinese peo

41、ple ask for help with their mental problems?A. They dont think them serious.B.They can get over them in time.C.They can keep their mental health secret.D.They are afraid of being looked down upon.60.Elaine Peng advised the teenagers with mental illness to .A. think less of themselvesB.avoid being bu

42、lliedC.ask for help as soon as possibleD.stay away from the Internet61.The main purpose of the passage is to.A. ask research centers for helpB.tell about teenagers stressesC.call public attention on teenagers with mental illnessD.show some different opinions from different countriesDMany objects in

43、the universe are invisible, but they send radio waves. The radio telescope thus appeared, and it is considered one of the greatest inventions in the twentieth century. Reber built the worlds first radio telescope in 1937. Ryle and Hewish developed radio telescope systems for the location of weak rad

44、io sources, and they shared the Nobel Prize for Physics in 1974.A radio telescope is usually made up of:One or more antennas to collect the radio waves. Most antennas are made in the shape of a dish to collect and reflect the radio waves to the sub-reflector, in the same way as a curved mirror focus

45、es visible light to one point.A receiver and amplifier to receive the radio waves from the sub-reflector, and make these weak radio waves strong enough to be recorded and turned into electronic signals. To make an amplifier sensitive enough, it is usually cooled to very low temperatures (e.g. as low

46、 as -270).A recorder to keep a record of the electronic signals. Most radio telescopes today keep the signals to the computers memory disk for astronomers to analyze later.Radio wave lengths are much longer than those of visible light, and the radio waves from deep space are always weak. To catch th

47、ese waves, radio telescopes usually have huge antennas. The sizes of most antennas in use today are around 50 to 300 meters in diameter. The antenna of FAST in Guizhou, China, the latest and largest radio telescope in the world, is 500 meters in diameter,as large as the size of 30 football fields.To

48、 avoid interference, and keep the telescopes sensitive, radio telescopes are built in places where there are no human radio waves or electronic signals. For example, FAST is 5 kilometers away from the closest village and 25 kilometers away from the nearest town.Radio telescopes create pictures of th

49、e sky, not in visible light, but in radio waves. This is extremely useful, because there are objects that cant be seen, objects that we wouldnt even know were there without radio telescopes.62.Radio telescopes help collect from the universe.A. lightB.objectsC.radio wavesD.visible signals63.Most ante

50、nnas of radio telescopes are made in the shape of a dish to.A. make the antennas strong enoughB.increase the number of radio wavesC.turn radio waves into electronic signalsD.focus radio waves on the sub-reflector64.The underlined word “interference” in the passage refers to .A. the noises made by vi

51、llagers and animalsB.the sounds from the radios and televisionsC.the people who go to Guizhou to watch FAST workD.the radio waves and electronic signals from humans65.What have we done with the help of radio telescopes?A. We have received pictures of deep space.B.We have discovered unknown lives in

52、the universe.C.We have found some unknown objects in the universe.D.We have turned the radio waves from space into light.第卷非选择题 (共40分)第一部分词语运用(共两节,满分25分)第一节(共10小题;每小题1分,满分10分)用括号中所给单词的适当形式完成句子(每空仅限1个单词)。66.Could you please me the sugar?Sure, here you are. (pass)67.Dont throw these away. You can give

53、 them away to Millie. (crayon)68.By these old students, we hope to make them good at looking after the younger students. (train)69.Many old men prefer to live in a countryside.So do my grandparents. (peace)70.Wow, how beautiful your garden is!Yes. And more trees and flowers will be tomorrow. It will

54、 be more beautiful. (plant)71.The books by Cao Wenxuan, like The Grass House, are popular among children. (write) 72.What cold weather!Yes. But its an experience for us, we normally live in a hot place. (usual) 73.The teachers their students to work out the problems by themselves, and in this way st

55、udents can enjoy success. (courage) 74.Did you watch the football game yesterday, Simon?Yes, I did. John is really a dark horse. Nobody him to go so far. (expect)75.He saw a group of working together to move the egg to their hole. (mouse)第二节(共15小题;每小题1分,满分15分)阅读下面短文,根据首字母、音标以及语境的提示在空白处填入适当的单词(1个单词);

56、或根据汉语意思的提示,在空白处填入适当的短语,使短文语意连贯,意思完整。76.(几个月前), I read a book.It made me feel its a 77.s to always buy more things than I need. I started cleaning out my house and got lots of unnecessary things.Its a 78.w and trouble for me. And then I 79.(考虑) what to do with them. This question made me think of Gar

57、age Sale for Orphans. It helps people clean out their houses and 80.t things into money that can help homeless kids 81.(全世界). It 82.r me. So I asked my boys for help, and they loved the idea of helping others.They walked from door 83. door to ask the 84.nebz for the things they dont need. At first,

58、I wondered if we 85. able to fill a box or two. Finally, however, we had ten boxes full of different things. Then it was time 86. the yard sale. 87.(即使,尽管) we had ads in the newspapers and online, I was still not sure anyone would come. 88.(令我们惊奇的是), so many people came to our yard sale. I 89.p to g

59、et 400 to 500 that day. At last, we got $743.23!We sent the money to the poor children in Haiti. Thanks for all the people who 90. helped us.第二部分书面表达(满分15分)假如你是李华, 你们学校将要举办毕业典礼, 你打算邀请外教Tim 参加。请用英语写一封电子邮件, 告诉他典礼的时间和地点, 组织哪些活动, 以及需要做什么准备。提示词语video, speech, dress formally要点提示When and where will you hol

60、d the ceremony?What will you do at the ceremony?What do you advise Tim to prepare for it?Dear Tim,Im writing to invite you to take part in our graduation ceremony. Yours,Li Hua【参考答案】听力材料 第一部分听力听录音,根据各题要求选择最佳答案,并将答题卡上对应题目的答案标号涂黑,每项内容读两遍。第一节听下面5段对话,选出与录音内容相一致的图片。1.M: What should you do when you meet s

61、omeone in China?W: Im supposed to shake hands.2.M: Mary, you told me your brother could play the guitar well.W: Thats right. He is now in a music band.3.M: Whats the kite made of?W: Its made of silk, bamboo and string. It looks like a bird.4.M: Whats your favorite festival, Lily?W: The Spring Festiv

62、al. I love dumplings!5.M: Look at the picture of my sister.W: Oh, she is standing in front of the snow with a scarf. The scarf is beautiful.第二节听下面5段对话或独白。每段对话或独白后有几个小题,从题中所给的A、B、C三个选项中选出最佳选项。听每段对话或独白前,你将有时间阅读各个小题,每小题5秒钟;听完后,各小题将给出5秒钟的作答时间。听第6段材料,回答第6至8题。M: Can you help me, Mom?W: What is it, dear?M:

63、 Im doing my homework, but I dont know what this sentence means.W: Oh, I cant help you now. Im doing some cooking.M: How about Dad?W: No, he cant now, Tom. Hes helping me in the kitchen.M: What about Kate?W: Oh, she is phoning her friend, Betty.M: How about Jane?W: Oh, she cant help you, either. She

64、 is washing her car now.听第7段材料,回答第9至11题。W: Have you made any vacation plans?M: Yes, Im going to China with my family.W: Sounds great. Ive been to China once. We visited Beijing and Hangzhou last spring. It was great.M: Fantastic!W: Well, how long will you stay there?M: For 15 days.W: When are you le

65、aving?M: On June 10th.W: What are you going to do in China?M: We will visit Beijing, Shanghai and Hangzhou. I should say I will simply go sightseeing and take photos that can remind me of the trip, but my mother and sister must do some shopping.W: That sounds like a lot of fun.听第8段材料,回答第12至14题。W: He

66、llo, Li Lei. Could you come to my birthday party tonight?M: Oh. Im sorry, Nancy. My pen pal Martin is going to see me.W: Oh, really? Where is he from?M:Hes from America. And he will arrive at nine oclock this evening.W: What does he look like?M: He used to be very short and thin, but now he is tall

67、and strong. I have seen his photos.W: I want to know him. Can you bring him to my party?M: No, thanks. He is also quiet and shy. Im afraid I cant. You know there are so many strangers at the party.W: Really? Its unbelievable. By the way, can I borrow your basketball?M: Oh. I used to be so but not no

68、w. Here you are.听第9段材料,回答第15至17题。M: I want to visit Ireland in July, but I only have ten days. What are the best places to visit?W: Well. Dublin is the most famous city in Ireland, and of course its also the most popular with tourists.M: But I dont want to see lots of other tourists. Whats the most

69、beautiful city?W: In my opinion, Galway is the prettiest city. Its smaller than Dublin, but its next to the water, so there are great views.M: Hows the weather there?W: Its cool in July, so its OK.M: What about transportation? Whats the best way to travel around?W: Buses are cheaper, but I think a c

70、ar is better than public transportation when you are a tourist. With a car, you can stop and see lots of different places on the way.听第10段材料,回答第18至20题。Most English people eat four meals a day. They have breakfast at any time from seven to nine in the morning. They usually eat eggs or bread and drink

71、 tea or coffee for breakfast. Lunch usually comes at about one oclock. Some of them eat in the restaurant, and some of them eat at home. Afternoon tea is from four to five. Supper is at about half past seven.In some families, they like eating well in the evening, because they are usually very busy i

72、n the day. First they usually have soup, and then they have meat or fish with vegetables for the big meal. After that, they eat some other things like bananas, apples or ice-cream.参考答案 第卷第一部分第一节15DBECA第二节610CBCAB1115BABCB1620ACACA第二部分第一节21.D考查情景交际。 由上句中的“take part in the celebration of the 70th anni

73、versary of China”可知,答语应该是“玩得开心”之类的祝福语。Thats amazing意为“真让人惊讶,不可思议”;Thats all right意为“不用谢,没关系”;Good luck意为“祝你好运”;Enjoy yourself意为“玩得高兴,过得愉快”。故选D。22.B23.D考查非谓语动词和连词的用法。had better意为“最好”,后接动词原形,可排除B、C两项;前半句“最好努力学习”与后半句“will fail in the exam”构成转折关系,故应用or。故选D。24.A25.D考查介词辨析。答语后句句意:我认为他们几分钟内就会追上来。由句中的时态,一般将

74、来时可知,应用“in+一段时间”。故选D。26.C27.D考查副词的用法辨析。根据“Why was Jim late for work”可知答语应表示“对上班迟到的原因”的大致推测,故用probably。故选D。28.D考查非谓语动词。句意:“我试图让艾丽斯改变想法,但是我发现很难。”“当我经过的时候我看到你正在试图改变艾丽斯的想法。”,make sb. do sth.意为“使某人做某事”,故第一个空应用change;see sb. doing sth.意为“看到某人正在做某事”,故第二个空应用doing。故选D。29.C30.C31.A32.B33.B34.D35.D第二节3640ABCAD

75、4145BCDBA4650DCDAB第三部分A5153CADB5457CCBDC主旨大意本文是一篇说明文,介绍了当今社会青少年精神疾病发病的原因及治疗建议。58.D推理判断题。根据第五段中的“Online, young people often see messages about perfection and this causes the young great uncertainty about their futures, says the center.”可知,网络引起的对未来的巨大不确定性而引发了心理疾病。59.D细节理解题。根据倒数第二段中的“They fear that oth

76、ers will think less of them if they say that they are in mental trouble.”可知,他们不寻求帮助的原因是害怕被人瞧不起。60.C推理判断题。根据倒数第一段中的“Elaine Peng warned that, If we hide our mental health, it may remain a problem forever.”可知Elaine Peng建议有心理疾病的青少年应马上就医。61.C主旨大意题。根据第二段及最后一段内容可知,此文主旨就是呼吁加强对心理疾病的认识和治疗。D6265CDDC第卷第一部分第一节66

77、.pass67.crayons68.training69.peaceful70.planted71.written72.unusual73.encourage74.expected75.mice第二节76.A few months ago77.shame78.waste79.thought about80.turns81.all over the world82.reminded83.to84.neighbors85.were86.for87.Even though88.To our surprise89.planned90.have第二部分One possible version:Dear

78、Tim,Im writing to invite you to take part in our graduation ceremony. It will be held at 9 a.m. this Friday in the school hall.(要点一,说明举行毕业典礼的时间和地点。)In order to revisit the precious moments of our school life, we will watch a video that includes all of the memorable events from the past three years.

79、Students will have a chance to express gratitude to parents and teachers,(高分句型一)with the president of student union giving the closing speech. It will be a meaningful time of showing our thankfulness, so Im sure youll enjoy that part of the ceremony.(要点二,说明在毕业典礼上做什么。)I hope that you will be there on time,(高分句型二) and also, please dress formally. Finally, it would be a good idea to bring a camera to capture the memories of this once-in-a-lifetime event. See you there!(要点三,建议Tim为毕业典礼准备什么。)Yours,Li Hua