Unit 8 Have you read Treasure Island yet 质量评估-【精英新课堂·三点分层作业】2024-2025学年八年级下册英语（人教版 贵州专版）

59. E 60. F 61. B 62. A 63. disabled people M: His name is Friday. 64. longer childhood 65. a/one year 66. follow the 第二节 听句子,选择最佳应答。(读一遍) orders 67. Yes (, I do). Because trained monkeys can 7. Has Tom read Little Women yet? help do many things for the owners.(言之有理即可) 8. How many books have vou read recently? 68. should protect 69. the greatest 70. fall over 9. How do vou feel about the film Alice in Wonderland? 71. in achieving/realizing 72. take in 73. largest 10. Who's your favorite writer? 74. and 75. got 76. finally 77. its 78. the 11. Why don't you listen to the country music? 79. getting 80. on 81. to live 82. tourists 12. Has vour sister decided which book to choose? 写作 第三节 听对话,选择最佳选项完成句子。(读 Dear friends, 两遍) My name is Xixi. I'm a panda. I am 13 years old. 13. M: Nancy, have you decided which book to write I come from Sichuan, China. I am a symbol of China.I about for English class yet? usually like to play with my friends. I also like climbing W: Yes, I chose Treasure Island, but I haven't trees. Bamboo is my favorite food. finished reading it yet. 14. W: Have you read Tom Sawyer and Harry Potter But I have some problems recently. People cut down so many trees that I don't have much space to yet? M: Yes. I think Harry Pouter is exciting, but Tom move around, and my favorite food is getting less and Sawyer is a bit boring less. My friends are fewer and fewer because some 15. W:Mary told me that she didn't like pop music. people are destroying our homes. There is no one to play M: Yes, she said it sounded noisy. with and I am very lonely. I'm really sad 16. M: Have you had breakfast? I hope people can protect the environment and W. Yes. I had eggs and a glass of milk give us more living space. If you can save trees, my friends and I will be very happy. 17. W: Have you seen my key to the bike? I can't find it M: It was on the chair just now. Yours. 18. W: Have you found anything on the island, Tom Xixi M: Yes, I saw an old ship. Unit8质量评估 第四节 听对话,根据对话内容及问题,选择最佳选 听力材料 项。(读两遍) 第一节听对话,选择相应的图片。(读一遍) 听下面一段对话,回答第19、20题。 1. W: Bob, what do you think of Tom Sawver? M: Hi, Lucy. What are you doing? M:I think it's a little boring W:I'm reading a book. 2. M:Cindy, which book did you read for the book M: What kind of book are you reading? report? W:A fairy tale called Sleeping Beauty. W.Alice in Wonderland. It's a fantastic book. M:Do you like it? 3. W: Many Americans like country music very much. W: Yes. It's wonderful M:I like it. too. 听下面一段对话,回答第2122题 4. W:Did you go to the concert? W: What do you usually do in your free time, Frank? M: Yes, it was great. M:I usually listen to music at home. 5. M: Let's go to see a movie tonight. Li Mei W:Really? What kind of music do you like? W:That's a good idea M: Pop music. What about you, Kate? 6. W: Who is Robinson's friend in the book? W:I like rock music. 139 M: Wow, such a quiet girl like you enjoys rock music? 59. F 60. C 61. D 62. A 63. American writer W. Yes. It alwavs makes me feel excited. 64. 1954 65. keep away from 66. the reasons 听下面一段对话,回答第2324题。 67. Yes(,I do). Because we all need courage and W:Jack, are you playing computer games again? perseverance to live a better life.(言之有理即可) M:No, I am not. I'm just reading a book named Tom 68. hurry up 69. millions of 70. has solved 71. full Sawyer on the computer. of/filled with 72. Ever since 73. with 74. members W: Oh, how do you like it? 75. a 76. so 77. yourself/yourselves 78. healthier M:In fact, it's so funny that I've read it three times. It 79. means 80. importantly 81. to relax 82. eating alwavs reminds me of my childhood. 写作 W.So what is it about? My Favorite Book-The Adventures of Tom Sawyer M: It's about a boy named Tom Sawyer and his friends. Reading is very important in people's whole life. They have lots of interesting experiences. have read many books since childhood. My favorite book W. Who is the writer of the book? is The Adventures of Tom Sawver. M: Mark Twain, one of the most famous American Mark Twain, an American writer, wrote this book writers of the 19th century. from his experiences. The book is about a smart boy, 第五节 听短文,完成表中所缺信息,每空仅填一 Tom Sawver, and his special childhood. Tom lives in a 词。(读三遍) small town in America. He takes some adventures with Boys and girls,it's ten o'clock now. It's time for us his friends. However, he doesn't give up in the face of to have a break. Here comes"The Voice of the School" difficulties. I think you must be tired after class. Listening to music The book is special to me because it's my birthday can help you relax. It's true that we can learn better gift from my dear father. I have had it for five years. when we're relaxed. Music can help vou forget all the What's more. I learned a lot from Tom Sawver. His stor problems. So it's really helpful for your next class. You encourages me to try hard to achieve my dream and and your classmates must be very happy to hear your never give up. I will keep the book forever. favorite music. Scientists believe that the sound of 第三次阶段评估 western classical music makes people feel richer. Fast 听力材料 music makes people do things faster. Isn't that 第一节 听对话,选择相应的图片。(读一遍) interesting? Haha.... but I think most of the middle school students like pop music best. OK, now let's enjoy 1. W: What's the matter with you, John? the most popular song Baby by Justin Bieber M:I have a sore throat. 听力答案 2. W: What were you doing from 9: 00 to 11: o0 this 1.B 2.A 3. C 4.A 5. B 6. C 7.C 8. B morning? 9. C 10.A 11. B 12. B 13. C 14. B 15. A M:I was visiting the museum. 16. B 17.C 18. B 19. A 20. C 21.A 22.C 3. W:Jack, why don't you go fishing with me tomorrow? 23. B 24. A 25. Voice 26. ten/10 27. problems M: Sorry, tomorrow is Monday. I am not free. 28. happy 29. fast 30. pop 4. W: Bob, have you finished your homework? 笔试答案 M.Sorry, I will do it right now. Mom. 31.C 32. D 33.A 34. F 35.E 36.A 37. B 5. W. Wow! The dogs are really clever. I think they are 38. C 39. B 40. A 41. A 42. B 43. C 44. C very helpful to people. 45. B 46. B 47. C 48. C 49. A 50. A 51.B M: Yes, they are able to help people after six months 52. A 53. C 54. B 55. B 56. B 57. C 58. E of training. -140Unit8质量评估 （时间：120分钟满分：150分) 第一部分听力（共五节，30个小题：每小题1分，满分30分） 第一节听对话，选择相应的图片。（读一遍）》 )1.A. C 金银岛 2.A. 客网丝梦诗仙装 B )3.A )4.A. B )5.A. )6.A. B 第二节听句子，选择最佳应答。（读一遍） ( )7.A.No,they haven't. B.Yes,he did. C.Yes,he has. ( )8.A.Once. B.Two. C.Storybooks. )9.A.Sunshine Cinema. B.At 5:00 p.m. C.It's interesting. ( )10.A.Mo Yan. B.It's a panda. C.The Monkey King. ( )11.A.To the concert. B.Good idea. C.I read in the library. ( )12.A.No,I haven't. B.No,she hasn't. C.It's up to her. 第三节听对话，选择最佳选项完成句子。（读两遍） )13.Nancy chose to write about for English class. A.Little Women B.Oliver Twist C.Treasure Island ( )14.The boy thinks Harry Potter is A.interesting B.exciting C.boring 一73— ( )15.Mary didn't like A.pop music B.country music C.western music ( )16.The woman had for breakfast. A.bread B.milk C.rice ( )17.The key to the bike was just now. A.on the desk B.under the chair C.on the chair ( )18.Tom has found on the island. A.an old car B.an old ship C.an old plane 第四节听对话，根据对话内容及问题，选择最佳选项。（读两遍） 听下面一段对话，回答第19、20题。 ()19.What's Lucy reading? A.Sleeping Beauty. B.Cinderella. C.Robinson Crusoe. )20.What does Lucy think of the story? A.Interesting. B.Boring. C.Wonderful. 听下面一段对话，回答第2122题。 ()21.What does Frank usually do in his free time? A.He listens to music. B.He uses the Internet. C.He watches movies. ( )22.How does Kate like rock music? A.Boring. B.Relaxing. C.Exciting. 听下面一段对话，回答第23、24题。 ( )23.How many times has Jack read Tom Sawyer? A.Twice. B.Three times. C.Four times. )24.Where did the writer of Tom Sawyer come from? A.The US. B.The UK. C.Canada. 第五节听短文，完成表中所缺信息，每空仅填一词。（读三遍） The 25. of the School What time It's 26. o'clock now.It's time for you to have a break. What Music can help you forget all the 27. How You and your classmates must be very 28 to hear your favorite music Western classical(古典的)music makes people feel richer and29 music makes What kind people do things faster. Who Most of the middle school students like 30. music best. -74 第二部分完形（共两节，满分20分）》 第一节（共5个小题：每小题1分，满分5分） 阅读下面短文，从框内6个选项中选出可以填入空白处的最佳选项。选项中有一项为多余选项。 A.until B.because C.a D.dug E.without F.more In the Western Han Dynasty,there was a man called Kuang Heng.He was born in 31. poor family.He liked reading books very much.He needed to work in the daytime,so he had to read books during the night.But he was too poor to buy a candle. One day,he found his neighbor had candles,but the light couldn't go through the wall.So he 32. a small hole in the wall so that he could use the light to read books.From that day,he didn't stop reading books every night 33. the light went out.Quickly,there were no 34. books for him to read.Then he went to a rich man's house and worked for him 35. payment (报酬).The rich man asked,“Why don't you want the money?”Kuang Heng said that he only wanted to borrow books.The rich man agreed. Finally,he became a great scholar(学者). 第二节（共10个小题；每小题1.5分，满分15分） 阅读下面短文，从每题所给的A、B、C三个选项中选出可以填入空白处的最佳选项。 From the time I was young,I liked music very much.I learned to play the piano and the violin, sing and so on.So,when I was in Grade 8,I 36 a band.At first,there were four students in the band.Every week,there were always many days when I came back home so late.My parents didn't want me to 37 so much time on the band.38,I didn't agree with them. I knew that we were not professional(职业的)39_，but we still worked hard.In the first half of the year of our band,we didn't get the 40 to perform outside the school.I was unhappy. But I still told my friends that we had to do something to make us more 41.Soon,more and more people 42 about our band.One day,a study center invited us to 43 for the students there. We were very 44. Now we have lots of fans in our city through 45 work.I got the lesson:No matter() what happens to your life,you should always believe in yourself and hold on to your dreams. ( )36.A.started B.took C.prepared ( )37.A.practice B.spend C.make ( )38.A.Recently B.Suddenly C.However ( )39.A.teachers B.musicians C.pilots ( )40.A.invitations B.reasons C.promises ( )41.A.popular B.enjoyable C.important ( )42.A.wrote B.knew C.listened 75 )43.A.learn B.stay C.play )44.A.famous B.angry C.happy )45.A.free B.hard C.busy 第三部分阅读（共三节，满分50分） 第一节（共12个小题；每小题2.5分，满分30分） 阅读下列短文，从每题所给的A、B、C三个选项中选出最佳选项。 A A Survey(调查)About▲ Question:There are so many kinds of music.But what kind of music do you love? Mr.Smith,a music teacher I love Beijing Opera.I often watch it on TV.On weekends,I always go to the park and sing Beijing Opera with my grandparents. Daming from Class 6,Grade 7 I love all kinds of music.And I love singers with a beautiful voice.It would be better if they can write their own songs.But I can't stand rock music.It's too noisy. Becky from Class 3,Grade 8 I love dancing.I started dancing at the age of seven.Of course I love dance music.It is so beautiful.I often listen to it when I help do the housework. Lingling from Class 4,Grade 9 )46.Daming goes to the park to on weekends. A.watch films about Beijing Opera B.sing Beijing Opera C.look after his grandparents )47.Who may Becky like? A.A rock singer. B.An opera artist. C.A singer with a beautiful voice. ()48.Lingling listens to dance music when she )49.Which of the following can be put in_▲_？ A.Music. B.Dance. C.Sports. B The book The Yellow Storm(《四世同堂》)is one of the most popular works of the Chinese writer Lao She(1899-1966).He started to write the story in 1944 in Chongqing and finished it in —76 1948 in America.It's a story about a Chinese family with four generations()living in Beijing in the 1940s. The writer uses different characters to show what society (was like at that time.Elder brother Qi Ruixuan is an English teacher.Though he wants to help fight in the war,he must look after his large family and make money.Qi Ruiquan,the youngest son and a university student, becomes an underground fighter. There are other fighters like Qi Ruiquan,such as truck driver Qian Zhongshi.He drives a truck into a cliff()and fights with bad people on the truck. All characters are ordinary people.They are from all walks of life.Some are doing things for their own good,while others choose between their families and the country. The story always gives readers a feeling of hope.It tells us that justice()will finally win. After reading it,you will have a strong feeling of pride()for the brave Chinese people.They fight until the last minute of darkness. )50.When did Lao She start to write the story? A.n1944. B.In1948. C.n1950 ( )51.What does the underlined word "ordinary"mean in Paragraph 4? A.Famous. B.Common. C.Poor. )52.What's the main purpose of the last paragraph? A.To show us the meaning of the story. B.To tell us the ending of the story. C.To explain why Lao She wrote the story. )53.In which part of a newspaper may we read the text? A.Life. B.Health. C.Culture. C Music can make a difference to our body and mind.For music lovers,listening to music can reduce(减少）stress and physical pain(疼痛)，and it can also make us happier and help us get more sleep. A new study found that people could reduce pain by listening to their favorite songs.The researchers asked 63 young adults to bring two of their favorite songs and let each person keep a hot teacup in hands while listening to music.The result showed that when people listened to music they like,it could reduce the pain they felt by 10%. Music and sleep have a close relationship.For example,listening to the right music can improve sleep quality.Soft music can help us relax and fall asleep more easily.Studies show that music can slow down the heart rate and lower()blood pressure.It can also make us more excited. Different kinds of music have different effects().Classical music and nature sounds are often 一77 used.To use music for sleep,choose some relaxing songs or sounds and play them at a low volume before bed.In a word,music can improve sleep. Music is a useful tool.It can play a role in our health.By listening to music in our daily life,we can make our quality of life better and enjoy many benefits(it offers. ( )54.What are the benefits of listening to music according to Paragraph 1? ①make us happier②help us get more sleep③reduce physical pain ④help us eat more⑤reduce stress A.①3④⑤ B.①②3⑤ C.②3④5 )55.What does the underlined word "it"in Paragraph 2 refer to? A.Keeping a hot teacup in hands.B.Listening to their favorite music. C.Bringing two of their favorite songs. ( )56.How does the writer develop his or her idea in Paragraph 3? A.By listing(列举)numbers.. B.By giving examples. C.By telling a story. )57.What's the best title of the text? A.Music and Sleep B.Different Kinds of Music C.A Useful Tool-Music 第二节（共5个小题；每小题2分，满分10分） 阅读下面短文，从短文后框内选项中选出可以填入空白处的最佳选项。选项中有一项为多余 选项。 What do you usually do when you are tired after studying hard?Many American students choose to relax by listening to country music.What is country music? 58.It is the traditional music of the American countryside.A country music singer shares his feelings with the audience()through his songs.59.They tell us that the best things in life are free-laughter,friends,family,and the beauty of nature and the countryside. At first,people played the music only at family parties.Because of the use of radios and tape players,country songs became more popular.When people moved to towns and cities to look for work,they took their music with them.60.Nowadays,people in many other parts of the world also like country music,because everyone can understand what the music is about. 61. These changes make the songs sound even better.I have been a fan of American country music since I was 12 years old.62. A.It makes me feel quiet and relaxed. B.There is a song for you when you are upset. C.In this way,all Americans knew about the music and liked it. D.These years,many musicians made country music a little different. E.Country music is simple music from the southern states of America. F.Many country music songs are about belonging to a group,or the lives of farmers. 一78 第三节（共5个小题；每小题2分，满分10分） 阅读下面短文，根据其内容填空和回答问题。(63至66题每题答案不超过3个单词，67题须 用完整句子回答。)》 The Old Man and the Sea is a short novel (by the famous American writer Ernest Hemingway.He wrote it in 1952 when he was 52 years old and it is one of his best-known works.Two years later,Hemingway won the Nobel Prize in Literature for it. The book tells a story of an old fisherman called Santiago.After 84 days without catching a fish out in the sea,he is hungry,poor and alone.The other villagers keep away from him because they think his bad luck might make them unlucky,too.Finally,his luck changes and he hooks()a huge fish.But his troubles are not over.Some sharks()try to take away his catch.He succeeds in fighting off the sharks with the help of a boy named Manolin.Unluckily,he loses the fish.He is still full of hope about his life and develops a good friendship with Manolin in the end. I like the book because the book is interesting.I like the character of Santiago because he shows a lot of courage(勇气)and perseverance(毅力).The story makes me think a lot and its language is simple and beautiful.I will surely tell my friends about it.I think they will like it,too. 63.The Old Man and the Sea was written by Ernest Hemingway,a(n) 64.Ernest Hemingway won the Nobel Prize in Literature for The Old Man and the Sea in 65.The villagers Santiago because they are afraid of his bad luck. 66.The last paragraph mainly talks about for the writer's love of the book. 67.Do you want to be a person like the old fisherman?Why or why not? 第四部分语言运用（共两节，满分25分） 第一节（共5个小题；每小题2分，满分10分） 根据中文意思，补全英语译文。（每空限填一词，缩写算一词）》 68.我现在必须快点，以免错过飞机。 I must now in order not to miss the plane. 69.我们每年春天在这片沙漠里种植数百万棵树。 We plant trees in this desert every spring. 70.他已经解决了所有的问题，所以他现在非常开心。 He all the problems,so he feels very happy now. 71.只要我们笑对学习，学习总会充满乐趣。 Learning is always fun as long as we smile at it. 72.自从我加入了志愿者社团，我意识到我可以变得更好。 I joined the volunteering club,I have realized that I could be better. -79 第二节（共10个小题；每小题1.5分，满分15分） 阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。 Music is a kind of beautiful language.When you can't get along well 73. your sisters or brothers,you can play some soft music.Then they will sit down and enjoy the music with you.You will be able to find you can have a good talk with each other in the music.It can make you and your family 74. (member)have a good talk. The music can also make you feel healthy after you listen to it for 75. long time.The music always lets your heart and other parts of your body exercise,76. you are often healthy.When you feel tired,you can relax 77. you)by listening to music.An expert says our hearts can get much 78.(healthy)because our hearts can beat strongly with the music.A study shows that listening to more music can help develop one's IQ.That 79. mean)it can help a person become cleverer.Also,music can keep your mind and brain() healthy.Most 80. important),music can make you happy,because music is always pleasant and comfortable.Listening to music that hits you in a special way causes your brain 81 (relax).Listening to music provides you with a kind of happiness.You would get it from 82. (eat)a piece of chocolate or something delicious. 第五部分写作（满分25分） 在世界读书日到来之际，你校英语俱乐部正在开展征文活动，要求介绍你所读过的一本 书。请你根据以下思维导图提示，以“My Favorite Book ”为题，写一篇英语短文，向大 家介绍你最喜欢的一本书。 要求：1.补全标题 2.内容积极向上，不少于80词（开头已给出，不计入总词数）； 3.文中不得出现真实的人名和校名。 参考词汇：encourage.鼓励 What the name is llow long you have had it Who wrote it My Favorite Book Why you like it What it is about What you lcarnt from it My Favorite Book- Reading is very important in people's whole life.I have read many books since childhood.My favorite book is 80Unit eight质量评估。第一节听对话，选择相应的图片读一遍。One. bob, what do you think of tom soa? I think it's a little boring. Two, Cindy, which book did you read for the book report . Alice in wonderland? It's a fantastic book. Three. many americans like country music very much. I like IT too. Four, did you . go to the concert? Yes, IT was great. Five, let's go to see a movie tonight, lee may. That's a good idea. Six. who is Robinson's friend in the book his . name is friday. 第二节，听句子，选择最佳应答读一遍。Seven, has tom read little women yet? Eight, how many books have you read recently? Nine, how do you feel about the film Alice in wonderland? Ten, who's your favorite writer? Eleven, why don't you listen to the country music? Twelve, has your sister decided which book to choose? 第三节，听对话，选择最佳选项，完成句子，读两遍。Thirteen, Nancy, have you decided which book to write about for english class yet? Yes, I chose treasure island, but I haven't finished reading IT yet. Nancy, have you decided which book to write about for english class yet? Yes, I chose treasure island, but I haven't finished reading IT yet. Fourteen. have you read tom soya and Harry potter yet? Yes, I think Harry potter is exciting, but tom sawa is a bit boring. Have you read tom soil and Harry potter yet? Yes, I think Harry potter is exciting, but tom sawa is a bit boring. Fifteen. mary told me that he didn't like pop music. Yes, SHE said that sounds . a noisy. Mary told me that he didn't like pop music. Yes, he said IT sounded noisy. Sixteen, have you had breakfast? Yes, I had eggs and a glass of milk. Have you had breakfast? Yes, I had eggs and a glass of milk. Seventeen. have you seen my key to the bike? I can't find IT IT . was on the change . just now. Have you seen my key to the bike? I can't find IT. IT was . on the change just now. Eighteen. have you found anything on the island? tom? Yes, I saw an old chip. Have you found anything on the island, tom? Yes, I saw an old ship. 第四节，听对话，根据对话内容及问题选择最佳选项，读两遍。听下面一段对话，回答第十九、20题。Hi, Lucy, what are you doing? I'm reading a book. What kind of book are you reading? A fairy tale called sleeping beauty. Do you like? IT. yes, it's wonderful. Hi, Lucy, what are you doing? I'm reading a book. What kind of book are you reading? A fairy tale called sleeping beauty. Do you like? IT, yes, it's wonderful. 听下面一段对话，回答第21、二十二题读两遍。What do you usually do in your free time? Frank. I usually listen to music at home. really. What kind of music do you like? Pop music? What about you? kate? I like rock music. Wow, such a quiet girl. Like you enjoys rock music. Yes, IT always makes me feel excited. What do you usually do in your free time? Frank? I usually listen to music at home. really. What kind of music do you like? Pop music? What about you? kate? I like rock music. Wow, such a quiet girl. Like you enjoys rock music? Yes, IT always makes me feel excited. 听下面一段对话，回答第23、24题。Jack, are you playing computer games again? No, I am not. I'm just reading a book named tom soil on the computer. Oh, how do you like IT? In fact, it's so funny that i've read IT three times. IT always reminds me of my childhood. So what is IT about is about . a boy named tom soya and his friends. They have lots of interesting experiences. Ces, who is the writer of the book? Mark twin, one of the most famous american writers of the nineteen century. Jack, are you playing computer games again? No, I am not. I'm just reading a book named tom soil . on the computer. Oh, how do you like IT? In fact, it's so funny that i've read IT three times. IT always reminds me of my childhood. So what is IT about is . about a boy named tom soya and his friends. They have lot of interesting experiences. Ces, who is the writer of the book? Mark twin, one of the most famous american writers of the nineteen century. 第五节听短文，完成表中所需信息，每空只填一词，读三遍。Boys and girls, it's ten o'clock now. It's time for us to have a break. Here comes the voice of the school. I think you must be tired after class. Listening to music can help you relax. It's true that we can learn Better when we're relaxed. Music can help you forget all the problems, so it's really helpful for your next class. You and your classroom mates must be very happy to hear your favorite music. Scientists believe that the sound of western classical music makes people feel richer. Fast music makes people do things faster, isn't that interesting? Haha, but I think most of the middle school students like pop music best OK. Now lets enjoy the most popular song, baby by Justin bieber. boys and girls. It's ten o'clock now. It's time for us to have a break. Here comes the voice of the school. I think you must be tired after class. Listening to music can help you relax. It's true that we can learn Better when we relaxed. Music can help you forget all the problems, so it's really helpful for your next class. You and your classmates must be very happy to hear your favorite music. Scientists believe that the sound of western classical music makes people feel richer. Fast music makes people do things faster. Isn't that interesting? Ha ha, but I think most of the middle school students like pop music best. Okay, now let's enjoy the most popular song, baby by Justin bieber. Boys and girls, it's ten o'clock now. It's time for us to have a break. Here comes the voice of the school. I think you must be tired after class. Listening to music can help you relax. It's true that we can learn Better when we're relaxed. Music can help you forget all the problems, so it's really helpful for your next class. You and your classmates must be very happy to hear your favorite music. Scientists believe that the sound of western classical music makes people feel richer. Fast music makes people do things faster, isn't that interesting? Haha, but I think most of the middle school students like pop music best OK. Now lets enjoy the most popular song, baby by Justin bieber.