21世纪大学英语听说教程(第三册)答案
Unit 1 Conversation 1-5 DABAA
6-10 CDCBD Passage
1-5 BCCBC
6-10 BAAAD
Unit2 Conversation 1-5 BCAAA
6-10 DAACD Passage
1-5 BCDAA 6-10 CCBDC
Unit3 Conversation 1-5 ADACB 6-10 BCDCD Passage
1-5CAADA
6-10ACBAA
Unit4 Conversation
1-5 ABCDB 6-10 CBABD Passage
1-6DABDDC 7-10CDDA
Unit5 Conversation
1-5BAABD
6-10 CCDDA Passage
1-5CABAD 6-10DCCAD
Unit6 Conversation
1-5CDABA 6-10 CAABD
Passage
1-5CBADA 6-10DADDC
Unit7 Conversation 1-5BDDBD 6-10 BDACA Passage
1-5 DBDBA
6-10 BCDBD Unit8 Conversation 1-5BDCCA 6-10 CBABD Passage
1-5CDCAA 6-10 ACBDC
一次函数性质小结(经典总结)
一次函数的图像、性质总结（阅读+理解） 一、一次函数的图像 Name 1.正比例函数y=kx (k ≠0,k 是常数)的图像是经过O （0，0）和M （1，k ）两点的一条直线（如图13-17）.（1）当k ＞0时，图像经过原点和第一、三像限；（2）k ＜0时，图像经过原点和第二、四像限. 2.一次函数y=kx+b (k 是常数，k ≠0)的图像是经过A （0,b ）和B （- k b ，0）两点的一条直线，当kb ≠0时，图像（即直线）的位置分4种不同情况： （1）k ＞0,b ＞0时，直线经过第一、二、三像限，如图13-18A （2）k ＞0,b ＜0时，直线经过第一、三、四像限，如图13-18B （3）k ＜0,b ＞0时，直线经过第一、二、四像限，如图13-18C （4）k ＜0,b ＜0时，直线经过第二、三、四像限，如图13-18D 3.一次函数的图像的两个特征 （1）对于直线y=kx+b(k ≠0),当x=0时,y=b 即直线与y 轴的交点为A （0,b ）,因此b 叫直线在y 轴上的截距. （2）直线y=kx+b(k ≠0)与两直角标系中两坐标轴的交点分别为A （0，b ）和B （-k b ，0）. 4.一次函数的图像与直线方程 （1）一次函数y=kx+b(k ≠0)的图像是一条直线，因此y=kx+b(k ≠0)也叫直线方程.但直线方程不一定都是一次函数. （2）与坐标轴平行的直线的方程. ①与x 轴平行的直线方程形如：y=a （a 是常数）.a ＞0时，直线在x 轴上方；a=0时，
直线与x轴重合；a＜0时，直线在x轴下方.（如图13-19） ②与y轴平行的直线方程形如x=b（b是常数），b＞0时，直线在y轴右方，b=0时，直线与y轴重合；b＜0时，直线在y轴左方，(如图13-20). 二、两条直线的关系 1.与坐标轴不平行的两条直线l1:y1=k1x+b1,l2:y2=k2x+b, 若l1与l2相交，则k1≠k2，其交点是联立这两条直线的方程，求得的公共解; 若l1与l2平行，则k1= k 2. 三、一次函数的增减性 1.增减性如果函数当自变量在某一取范围内具有函数值随自变量的增加（或减少）而增加（或减少）的性质，称为该函数当自变量在这一取值范围内具有增减性，或称具有单调性. 2.一次函数的增减性 一次函数y=kx+b在x取全体实数时都具有如下性质： （1）k＞0时，y随x的增加而增加； （2）k＜0时，y随x的增加而减小. 3.用待定系数法求一次函数的解析式： 若已知一次函数的图像（即直线）经过两个已在点A（x1，y1）和B(x2，y2)求这个一次函数的解析式，其方法和步骤是： （1）设一次函数的解析式：y=kx+b(k≠0) （2）将A、B两点的坐标代入所设函数的解析式，得两个方程：y1=kx1+b① y2=kx2+b②（3）联立①②解方程组，从而求出k、b值. 这一先设系数k、b，从而通过解方程求系数的方法以称为待定系数法.
全新版大学英语听说教程2答案
unit1 Michael Jordan is the greatest basketball player of all time. He was born on Feb. 1) 17, 2) 1963, in Brooklyn, New York. He is 3) 1.98 meters tall and weighs 4) 216 pounds. Jordan joined the Chicago Bulls team for the 5) 1984 season. In the 6) 1986 season he shot 7) 3041 points, the 8) third highest score ever. He was named NBA Slam Dunk Champion (扣篮冠军) in 9) 1987 and won the Most Valuable Player Award in 10) 1988, an honor repeated 11) four times in the next 12) ten years to 13) 1998. Jordan guided his team to win 14) six NBA championships during the 15) 1990s, scoring 16) 45 points during the 17) sixth and last game of the 18) 1998 NBA finals. In 19) 1999, he was named the greatest North American athlete of the 20th century. Jordan left the NBA at the beginning of the 1993-1994 NBA season to pursue a career in baseball. Since his baseball game wasn’t quite as good as his basketball games, he finally gave it up to rejoin the Bulls in 1995. Yet, after playing for 20) five more years, he once again announced his retirement in 21) 1999. But he returned for two more NBA games in 22) 2001 as a member of the Washington Wizards. Part B Pre-listening Task Exercise 1 d b Exercise 2 Listen again and write down answers to the following questions. 1. Why is Laura so keen on sports? Because she wants to enjoy good health. She also wants to stay in shape and look good. 2. What sports do Peter and Laura go in for? Both Peter and Laura like cycling and swimming. Laura also plays tennis regularly. Part c d c d c b unit 2 Part A 1. Yes 2.No 3.Yes 4.No 5.Yes 6.No 7.No 8.No Part B Text Exercise 1: 1. ...for a while 2. ...plans for this Saturday
21世纪大学英语第2册课后翻译标准答案
21世纪大学英语第2册课后翻译答案【Unit1】 1、老伴60多岁中风去世时，那位72岁的退休教授不胜悲痛。无人依靠的生活对他来说将是非常困难的。 When his wife died of a stroke in her sixties the 72-year-old retired professor was overwhelmed by grief. Life would be too difficult for him without anybody to rely on. 2、两位业余画家上个月在伦敦举办了一次个人画展。许多人前去参观，其中包括一些著名的专业画家。 Last month two amateur painters held an exhibition of their pictures in London. Many people went to see it including a few celebrated professionals. 3、当20世纪80年代中期，7名宇航员在“挑战者”号的灾难中遇到困难时，全世界一下子陷入了震惊与悲痛之中。
When seven astronauts died in the Challenger disaster in the mid-1980s it plunged the whole world into shock and grief. 4、在结束了其第二届首相任期之后，她仍积极参与政治事务。当政府遇到困难时，她屡次前来帮忙。 After completing her second prime ministry she remained actively involved in political affairs. She came to the rescue several times when the government was in difficulty. 5、大选失败之后，史密斯博士隐退到一个小村庄，在那里尝试工作。After his failure in the election campaign Dr. Smith retired to a small village where he tried his hand at farming. 6、只要你一辈子不停地努力工作，你在回忆里往事时就会感到心满意足的。 As long as you keep working hard all your life you will recall your past with a glow of satisfaction.
全新版大学英语听说教程3答案完整版
全新版大学英语听说教程答案第三册 UINT1 Part B Text 1 Exercise 1: 1. c 2. a 3.b Exercise 2: 1. She suggested that her husband spend more time with his mother. She said to her husband, "Life is too short, you need to spend time with the people you love. You probably won't believe me, but I know you love her and I think that if the two of you spend more time together , it will make us closer." 2. 1) ...she was waiting by the door with her coat on and she had her hair curled. 2) She had told her lady friends about this. Text 2 Exercise 1: 1. c 2. d 3. d Exercise 2: 1. F 2. T 3. F 4. T 5. F Part C 1. b 2. c 3. b 4. d 5. d PART D My First Job My parents ran a small restaurant. It was open twenty-four hours a day, seven days a week. My first job was shining shoes for customers when I was six years old. My duties increased as I grew older. By age ten I was clearing tables and washing plates. My father made it clear that I had to meet certain standards. I had to be on time, hard-working and polite to the customers. I was never paid for any work I did. One day I made the mistake of telling Dad I thought he should give me ten pounds a week. He said, "OK, then how about you paying me for the three meals a day when you eat here and for the times you bring your friends here for free drinks?" He figured I owed him about 40 pounds a week. This taught me quite a lot. Unit 2 Part B Text 1
21世纪大学英语第三册课后答案
21世纪大学英语第三册课后答案
课后答案 1单元 TEXT A III https://www.360docs.net/doc/483054140.html,pulsory 2.relish 3.confidence 4.consequences 5.incentive 6.henceforth 7.invest 8.perceive 9.passion 10.scheming IV 1.going steady with Richard 2.in time 3.played into his enemy's hands 4.beyond her wildest dreams 5.hung on Michael's every word or hung on Michael's words 6.out of focus 7.feed on 8.the apple of Chris's eye 9.filed into the courtroom 10.poring over their collection V 1.most obvious:gaze,beam,widen 2.most obvious:betray,sigh,frown
3.most obvious:glorious,revelation,stump VI A 1.actress 2.empress 3.goddes 4.mistress 5.waitress 6.lioness 7.priestess 8.heiress B 1.Goddess 2.waitresses,actresses 3.Lionesses 4.mistresses VII a person who is taking an exam 应试者 one to whom something is referred, esp. for decision or settlement 裁判 a person who is appointed to a jo b or position 被任命者 a person who has been forced to leave his country, home, etc. and seek refuge 避难者，难民 the person to whom a letter, etc. is addressed 收件人
全新版大学英语听说教程课后答案
全新版大学英语听说教程答案第三册 Part B Text 1 Exercise 1: 1. c 2. a 3.b Exercise 2: 1. She suggested that her husband spend more time with his mother. She said to her husband, "Life is too short, but you need to spend time with the people you love. You probably won't believe me, but I know you love her and I think that if the two of you spend more time together , it will make us closer." 2. 1) ...she was waiting by the door with her coat on and she had her hair curled. 2) She had told her lady friends about this. Text 2 Exercise 1: 1. c 2. d 3. d Exercise 2: 1. F 2. T 3. F 4. T 5. F Part C 1. b 2. c 3. b 4. d 5. d PART D My First Job My parents ran a small restaurant. It was open twenty-four hours a day, seven days a week. My first job was shining shoes for customers when I was six years old. My duties increased as I grew older. By age ten I was clearing tables and washing plates. My father made it clear that I had to meet certain standards. I had to be on time, hard-working and polite to the customers. I was never paid for any work I did. One day I made the mistake of telling Dad I thought he should give me ten pounds a week. He said, "OK, then how about you paying me for the three meals a day when you eat here and for the times you bring your friends here for free drinks?" He figured I owed him about 40 pounds a week. This taught me quite a lot. Unit 2 Part B Text 1 Exercise 1: 1. b 2. a 3. d 4. c Exercise 2: 1984 / son / medical school / tuition / afford it / realize / newspaper ads / extra business / advertisement / succeeded / agent / changed / phone call / put aside / doing / immediately / familiar / father-in-law's / visited / his father-in-law alive / coincidence. Text 2 Exercise 1: 1. T 2. F 3. F 4. F 5. F
21世纪大学英语第二册答案
第一单元 Text Comprehension II． 1. It was a military campaign in which many soldiers died. The effects on Churchill were () he lost his political position and he was overwhelmed with grief. 2. He felt so inspired to paint that he was distracted from his personal problems. 3. His sister-in-law?s painting inspired him to try his hand at it; his wife rushed out to buy all the materials he would need; and the wife of Sir John Lavery helped him overcome his fear of the blank canvas. 4. The blank whiteness of the c anvas made him feel he didn?t know where to begin. This nervousness was not typical of Churchill, who was known publicly as a brave and strong-willed person. 5. Churchill was comparing the canvas to an opponent in a fight, and he could now see that he need not fear his “adversary”. 6. He meant that Churchill would have been a great painter, just as he was a great politician. 7. It was his great comfort when the death of his mother was followed quickly by the death of his daughter. 8. Because the judges suspected that it was not painted by an amateur; they were later surprised and delighted because Churchill was not just a famous political figure but also a talented untrained artist. 9. No, she considers that decade an artistically fruitful one. 10. He meant that painting was like a friend who never betrayed or abandoned him. This seems to suggest that he often felt lonely, misunderstood and/or disappointed in his relationship with other people. V ocabulary III. 1.artistic 2.overcome 3.infinite 4.plunged 5.mission 6.camgpain 7.revived 8.distract 9.accustomed 10.retreat 11.precaution 12. disastrous IV. 1. delighted with 2. bore fruit 3. kept Clementine company 4. rely on 5. take refuge 6. awaken people to 7. pay the price 8. chanced upon; dated from 9. tried his hand at 10. fell upon; came to her rescue Word Building V. 1. broadens the mind 2. weakened 3. sweeten Diet Coke 4.hardens 5. strengthen 6. deepen your understanding of the course materiall 7. sharpen the kitchen knives 8. reddened 9. brighten; quickens 10. lightened VI. 1. lucky 2. wealthy 3. tasty 4. icy 5. wavy 6. smelly 7. sleepy 8. noisy (smelly is also plausible) 9. healthy 10. sunny Structure VII. 1. Amazed at the great changes that are taking place in shanghai, many foreign visitors leave
21世纪大学英语读写教程(第三册)
21世纪大学英语读写教程（第三册） Vocabulary III Unit 1 1.Do you think that making music and art compulsory subjects in schools would reduce some children?s enjoyment of them ? 2.Bob’s one of those people who relish risk and danger—he’d be bored in a safe , steady job. 3.Elizabeth is certainly enough to succeed in her career ; she just doesn’t have enough confidence in her own abilities. 4.I’m sorry you’re in trouble , but as you made your decision on your own you’ll just have to face the consequences. 5.Many educators would be delighted to abolish exams , but they also worry that with them there would be too little incentive for students to work hard. 6.The teacher accidentally hit the boy’s hand with an eraser and was henceforth known as “Dead-Eye Bean”. 7.If I had money , I’d invest it all in Internet companies. 8.Psychologists say that our behavior is influenced by many factors too subtle for us to consciously perceive. 9.He’s always had a passion for books. If he could work in library, it would be a dream come true. 10.Look at those three whispering in the corner again ----they’re scheming something , I just don’t know what! Unit2 1. In a healthy relationship, the partner? strengths and abilities complement each other, rather than being identical. 2. Millions of dollars and lots of famous actors not indispensable to the production of a successful film , but they help! 3. I never felt I had a right to expect any special privileges because of my university education. 4. The marking strategy that Edward proposed would be brilliant if only he hadn?t forgotten about good business ethics. 5. It?s true that not having a car imposes some constraint , but owing one also complicates life in many ways. 6. According to Chinese law ,every child is entitled to nine years of free education. 7. Life should consist of more than just a struggle for survival. 8. The sight of the helpless child aroused her maternal instinct. 9. The winners of the contest were chosen randomly; no consideration was given to age, gender or income. 10. He has lost the use of his limbs but he is still in possession of all his faculty. 11. Please give the highest priority to this very urgent matter. 12. She enjoyed p arts of her trip to India, but said she found the poverty she saw there rather depressing.
全新版大学英语(第二版)听说教程3听力练习答案
Unit 1 Parents Passage 1 Ex. 1 1-3 c a b Ex. 2 1. her husband spend more time with his mother. // Life is too short, you need to spend time with the people you love, You probably won’t believe me, but I know you love her and I think that if the two of you spend more time together, it will make us closer. 2. 1) she was waiting by the door with her coat on and she had her hair curled. 2) She had told her lady friends about this. Passage 2 Ex. 1 1-3 c d d Ex. 2 1. took// out to dinner// neighborhood 2. nicer than he expected. 3. A couple of times. 4. the importance of slowing down//his marriage Part C 1-5 b c b d d
Unit 2 Coincidence Passage 1 Ex 1 1-4 b a d c Ex 2 1984 // son // medical school // tuition // afford it // realize // newspaper ads // extra business // advertisement //succeeded // agent // changed // phone call // put aside // doing // immediately familiar // his father-in-law’s // visited // father-in-law // alive //coincidence Passage 2 1. The house was decorated exactly the same as Mr. Stewart remembered it 2. Mr. Stewart happened to be in the house when a postman came to deliver a letter to his father-in-law who had died 15 years ago. 3. The old postman had called in sick that day, and the postman who came in his place was not familiar with the neighborhood. Other wise the letter would have been returned to its sender. Ex. 2 1. He was intrigued. 2. A bank statement. 3. His father-in-law had put an amount of money in the bank for his grandchildren’s education.
21世纪大学英语2答案.doc
21 世纪大学英语 2 答案【篇一：《21 世纪大学英语》第二册课后翻译答案】 p class=txt>unit1 老伴60 多岁中风去世时，那位72 岁的退休教授不胜悲痛。无人依靠的生活对他来说将是非常困难的。 when his wife died of a stroke in her sixties, the 72-year-old retired professor was overwhelmed by grief. life would be too difficult for him without anybody to rely on. 两位业余画家上个月在伦敦举办了一次个人画展。许多人前去参观，其中包括一些著名的专业画家。 last month two amateur painters held an exhibition of their pictures in london. many people went to see it, including a few celebrated professionals. 当20 世纪80 年代中期，7 名宇航员在“挑战者”号的灾难中遇到困难时，全世界一下子陷入了震惊与悲痛之中。 when seven astronauts died in the challenger disaster in the mid-1980s, it plunged the whole world into shock and grief. 在结束了其第二届首相任期之后，她仍积极参与政治事务。当政府遇到困难时，她屡次前来帮忙。 after completing her second prime ministry, she remained actively involved in political affairs. she came to the rescue several times when the government was in difficulty. 大选失败之后，史密斯博士隐退到一个小村庄，在那里尝试工作。 after his failure in the election campaign, dr. smith retired to a small village, where he tried his hand at farming. 只要你一辈子不停地努力工作，你在回忆里往事时就会感到心满意足的。 as long as you keep working hard all your life, you will recall your past with a glow of satisfaction. 我们现在必须唤醒人们认识到环境保护的重要性。否则很快就为时太晚了。we must awaken people to the importance of environmental protection, or it will be too late. 那位官员因卷入一件政治丑闻而被撤职。如果早知会落到这般地步，他当初也许就会以不同的方式行事了。
新视野大学英语听说教程答案
新视野大学英语听说教程 答案 The Standardization Office was revised on the afternoon of December 13, 2020
新视野大学英语4听说教程答案 Unit One Warming Up F T NG Listening Understanding Short Conversations 1~5 A C B B D 6~10 B A C C D Understanding a Long Conversation 1~5 A B A C B Understanding a Passage 1~5 A A D B C Undenstanding a Radio Program 1 married in ’s Cathedral 2 was a guest at the wedding ceremory 3 wore a hat with flowers at the wedding 4 is remmembered as having been naughty 5 was one of the designers of the wedding dress Culture Talk T F F T Listening and Speaking 1 They have high status. 2 They get the attentions of the public. 3 Using their fame to make money. Homework Supplementary Listening Task 1 1~5 D A B B A Task 2 1~5 C A B B A Task 3 1、shortage 2、assigned 3、centered 4、hospitalization 5、treatment 6、colleague 7、decentralized 8、There’re nurse-managers instead of head-nurses 9、decidea among themselves who will work what to do and when 10、an equal with other wise presidents of the hospital Unit Two Warming Up 1、Her new book 2、Original 3、Use your own words to complete it,this question has no correct answers. Listening Understanding Short Conversations 1~5 D D D C B 6~10 A A B C D Understanding a Long Conversation 1~5 D A B B A
21世纪大学英语视听说S版第三册答案.pdf
Unit 3 Before Watching： 1) please 2) available 3) any singles 4) with a single bed 5) a double 6) a double bed 7) a suite 8) any vacancies 9) reserve 10) book 11) a reservation 12) have a rvservatlon 13) at the front 14) at the rear 15) you have 16) with a view of the beach 17) a wake-up call 18) the rates 19) room service 20) by 21) checkout 22) credit cards While Watching： 1) a uniform / a receptionist 2) a badge 3) on his mobile phone
4) dressed up 5) a magnetic card 1) May I help you 2) make a reservation 3) on October 10th 4) on the 14th 5) in all 6) with a single bed 7) spell your last name 8) My phone number 9) I got it 10) have a reservation 1) I'll check 2) is that 3) with a view of the lake 4) a wake-up call 5) will that be 6) accept a Visa card 7) Is breakfast included 8) Breakfast is served 9) the magnetic card 10) Have a nice stay 1) make a reservation 2) plans to 3)on the afternoon of October 10th 4) for four days 5) with a view of the lake
二次函数增减性精编版
二次函数增减性 1、已知抛物线822 --=x x y ，当自变量x 在 范围内，0