Unit 5
I 1.. 1. started 2. mere 3. motion 4.sweating 5. stretched out
6.vain
7.On one occasion
8. anxiety
9. emotions
10.ashamed of 11. In my mind’s eye 12. recurring
2.. 1.coincides with her husband’s
2. sends the prices soaring/results in the soaring of prices.
3. of altering sunshine and rain
4. have been his lifelong passions, although he studied economics at
university
5. Tension came over her.
3.. 1. media; dedication to; grace
2. his competitors; in excitement; hug him; congratulate him on
3. emotions; numerous; intensity; passion for
II.
1. Mike, a Green, made the suggestion that a large park be built near the community.
2. In a letter to his daughter, Mr. Smith expressed his wish that she should
continue her education to acquire still another degree.
3. There is no reason to hold the belief that humans have no direct moral
responsibility to safeguard the welfare of animals
4. Children need to feel safe about the world they grow up in, and it is unwise to give them the idea that everything they come into contact with might be a threat.
5. Anxiety can result from the notion that life has not treated us fairly.
6. Nobody believed his claim that he was innocent.
III
1. I work out in the gym for one hour every morning.
2.Florence has worked as a cleaner at the factory for five years.
3.The wounded man worked his way across the field on his hands and knees.
4.The safe load for a truck of this type works out at about twenty-five tons.
5.It is difficult to understand how human minds work.
6.To my disappointment, the manager's plan of promoting the new products doesn't work at all.
7.The teacher has a lot of experience of working with children who don't know how to learn.
8.The medicine began to work one hour after the child took it.
Cloze
1. In my mind’s eye
2. groan
3. competitor
4. intensity
5. anxiety
6.tense
7. sweat
8. tension
9. soaring 10. recurring 11. brought me back to the earth
12. fantasy 13. sweat 14. congratulate
15.numerous 16. media
1. engineer
2. forget
3. convinced
4. how
5. build
6. accident
7. thought
8. only
9. sharp 10. touched 11. instructions 12. finally
Translation
1.It is the creativity and dedication of the workers and executives that
turned the company into a profitable business.
2.The prices of food and medicine have soared in the past three months
3.We plane to repaint the upper floors of the office building
4.His success shows that popularity and artistic merit sometimes coincide
5.L don’t want to see my beloved grandmother lying in a hospital bed and
groaning painfully.
Numerous facts bear out the argument/statement/claim that in order to recover speedily from negative emotion, you should allow yourself to cry. You needn't be ashamed of crying. Anxiety and sorrow can flow out of the body along with tears.
Consider the case of Donna. Her son unfortunately died in a car accident. The intensity of the blow made her unable to cry. She said, "It was not until two weeks later that I began to cry. And then I felt a big stone had been lifted from my shoulders. It was the tears that brought me back to earth and helped me survive the crisis."
Unit 6 Women, Half the sky
Text A A Woman Can Learn Anything a Man Can
I. Vocabulary
1. Fill in the gaps with words or phrases…
1) cultural/culture 2)indication 3) miniature 4) ironic 5) stumbled into 6) decent
7)buzzing 8) abnormal 9) mechanical 10) shuddering 11) implied 12)leap
2. Rewrite each sentence…
1) Convert RMB into US dollars in the foreign exchange office
2) Didn’t know the first thing about cooking as she looked puzzled as to how to cook rice with the rice cooker
3) Their faulty equipment the team had accomplished some very useful work.
4) Allowing me to work flexible hours as long as I work eight hours a day
5) Couldn’t help thinking the book must be quite fascinating.
3. Complete the sentences
1) will not panic/ feel panic, will be at a disadvantage
2) hybrid, transmission
3) carve, one indication, to distinguish
II. Collocation
1. also
2. as well/too
3. too
4. too
5. as well/too
6. too 7 also 8. also
III. Usage
1. I’ve had enough
2.when I was old enough to work and earn money
3. can’t get enough sleep at night
4. had so far collected enough of them
5.have strong enough arms
6. have just enough money to live on
Comprehensive Exercises
I. Cloze
1. Text-related
1) stumbled into 2) not know the first thing about 3) mechanical 4) when it comes to
5) hybrid 6) gritted her teeth 7) premise 8) at a disadvantage 9) panic
10) cultural 11)flexible 12)imply
2. Theme-related
1. chair
2. force
3. secrets
4. painstaking
5. recognized
6. steered
7. essentially
8.obsevation 9. women 10. tutor 11.inspired 12.unless
II. Translation
1. Translate the Sentences
1) He is a man of few words, but it comes to playing computer games, he is too clever for his classmates.
2) Children who don’t know any better may think these animals are pretty cute and start playing with them.
3) There is no way to obtain a loan, so as to buy the new equipment, I’ll just have to grit my teeth and sell my hybrid car.
4) The hunter would not have fired the shots if he had not seen a herd of elephants coming towards his campsite.
5) I find it ironic that Tom has a selective memory --- he does not seem to remember painful experiences in the past, particular those of his own doing.
2. Translate the passage:
Nancy Hopkins is a biology professor at MIT. She craves knowledge and works hard. However, as a scientist, she could not help noticing all kinds of indications of gender inequality on campus. Men and women professors did the same work, but when it came to promotion the administrators were rather selective. It is ironic that after so much cultural progress, women were still at a disadvantage in institutions of higher education. When her request for more lab space was refused, she knew she had to fight. So she gritted her teeth and complained to the President. The fight ended in victory and Nancy was converted into a gender-equity advocate.
Unit 7 Learning about English
Text A The Glorious Messiness of English
I. Vocabulary
1. Fill in the gaps with words or phra ses…
1) Strictly speaking 2) drifted 3) resembles 4) invaded
5) is conquered 6) fascinating 7) snack 8) put into practice
9) source 10) climate 11) surrendered 12) were aroused
2. Rewrite each sentence…
1) an absolute necessity rather than a luxury
2) is a valuable addition to the football team.
3) will get out of control, if the firemen do not arrive within ten minutest
4) alternative but to go via Vancouver to get to Seattle.
5) declared all beef imports will be banned for the next six months as an emergence measure to stop the spread of mad cow disease
3. Complete the sentences
1) systematic, have invented, to a very real extent, mysteries
2) to establish, to be modified/ modifying
3) tolerance towards, strike out, enrich
II. Synonyms
1. wish, wish, want, want/wish
2. skin, hide/skin, hide, skin
3. raise/rear, raise, rear/raise, raise
4. royal, kingly/royal, sovereign, royal/ kingly
III. Usage
1. Indeed
2. though
3. Frankly
4. Moreover
5. To my knowledge
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Unit 4 Fresh Start In-Class Reading Fresh Start 新的开端 1当我父母开车离去，留下我可怜巴巴地站在停车场上时，我开始寻思我在校园里该做什么。我决定我最想做的就是平安无事地回到宿舍。我感到似乎校园里的每个人都在看着我。我打定主意：竖起耳朵，闭上嘴巴，但愿别人不知道我是新生。 2第二天早上我找到了上第一堂课的教室，大步走了进去。然而，进了教室，我又碰到了一个难题。坐哪儿呢？犹豫再三，我挑了第一排边上的一个座位。3“欢迎你们来听生物101 课，”教授开始上课。天哪，我还以为这里是文学课呢！我的脖子后面直冒冷汗，摸出课程表核对了一下教室——我走对了教室，却走错了教学楼。 4怎么办？上课途中就站起来走出去？教授会不会生气？大家肯定会盯着我看。算了吧。我还是稳坐在座位上，尽量使自己看起来和生物专业的学生一样认真。 5下了课我觉得有点饿，便赶忙去自助食堂。我往托盘里放了些三明治就朝座位走去，就在这时，我无意中踩到了一大滩番茄酱。手中的托盘倾斜了，我失去了平衡。就在我屁股着地的刹那间，我看见自己整个人生在眼前一闪而过，然后终止在大学上课的第一天。 6摔倒后的几秒钟里，我想要是没有人看见我刚才的窘相该有多好啊。但是，食堂里所有的学生都站了起来，鼓掌欢呼，我知道他们不仅看见了刚才的情景，而且下决心要我永远都不会忘掉这一幕。 7接下来的三天里，我独自品尝羞辱，用以果腹的也只是些从宿舍外的售货机上买来的垃圾食品。到了第四天，我感到自己极需补充一些真正意义上的食物。也许三天时间已经足以让校园里的人把我忘在脑后了。于是我去了食堂。 8我好不容易排队取了食物，踮脚走到一张桌子前坐下。突然我听到一阵熟悉的“哗啦”跌倒声。抬头看见一个可怜的家伙遭遇了和我一样的命运。当人们开始像对待我那样鼓掌欢呼的时候，我对他满怀同情。他站起身，咧嘴大笑，双手紧握高举在头顶上，做出胜利的姿势。我料想他会像我一样溜出食堂，可他却转身重新盛一盘食物。就在那一刻，我意识到我把自己看得太重了。
Unit1 Ways of Learning Vocabulary I 1. 1)insert 2)on occasion 3)investigate 4)In retrospect 5)initial 6)phenomena 7)attached 8)make up for 9)is awaiting 10)not; in the least 11)promote 12)emerged 2. 1) a striking contrast between the standards of living in the north of the country and the south. 2)is said to be superior to synthetic fiber. 3)as a financial center has evolved slowly. 4)is not relevant to whether he is a good lawyer. 5)by a little-known sixteen-century Italian poet have found their way into some English magazines. 3. 1)be picked up; can’t accomplish; am exaggerating 2)somewhat; the performance; have neglected; they apply to 3)assist; On the other hand; are valid; a superior II 1. 1)continual 2)continuous 3)continual 4)continuous 2. 1)principal 2)principal 3)principle 4)principles 5)principal III 1.themselves 2.himself/herself 3.herself/by herself/on her own 4.itself 5.ourselves 6.yourself/by yourself/on your own Comprehensive Exercises I.cloze 1.
1. Complete each of the following sentences with an appropriate form of the word in brackets. 1. (attention) Correct answer inattention 2. (qualify) Correct answer qualified Correct answer Navigation 4. Correct answer participants 5. Correct answer unconscious 6. Correct answer competence 7. Correct answer inequalities 8. morning. (request) Correct answer
requested 9. Correct answer varied 10. Correct answer partners 2. Fill in each of the blanks with an appropriate preposition or adverb. 11. Correct answer in 12. Correct answer of 13. Correct answer to 14. accident. Correct answer at 15. Correct answer beyond 16.
Your answer Correct answer from from 17. Your answer Correct answer to to 18. Your answer Correct answer on on 19. Your answer Correct answer in in Your answer Correct answer On On 3. Complete each of the following sentences by choosing the best answer from the choices given. 21. The buses, ___________ were already full, were surrounded by an angry crowd. A. most of which B. both of which C. few of them D. those of which 22. There's only one man ____________ the job. A. qualified for
大学英语综合教程2课后答案 Unit 1 Text A Vocabulary I. 1.1) insert 2) on occasion 3) investigate 4) In retrospect 5) initial 6) phenomena 7) attached 8) make up for 9) is awaiting 10) not?in the least 11) promote 12) emerged 2. 1) There is a striking contrast between the standards of living in the north of the country and the south. 2) Natural fiber is said to be superior to synthetic fiber. 3) The city’ s importance as a financial center has evolved slowly. 4) His nationality is not relevant to whether he is a good lawyer. 5) The poems by a little-known sixteenth-century Italian poet have found their way into some English magazines. 3. 1) be picked up, can’ t accomplish, am exaggerating 2) somewhat, performance, have neglected, they apply to 3) assist, On the other hand, are valid, a superior II.
大学物理实验教材课后思考题答案 一、转动惯量： 1．由于采用了气垫装置，这使得气垫摆摆轮在摆动过程中受到的空气粘滞阻尼力矩降低至最小程度，可以忽略不计。但如果考虑这种阻尼的存在，试问它对气垫摆的摆动（如频率等）有无影响？在摆轮摆动中，阻尼力矩是否保持不变？ 答：如果考虑空气粘滞阻尼力矩的存在，气垫摆摆动时频率减小，振幅会变小。（或者说对频率有影响， 对振幅有影响） 在摆轮摆动中，阻尼力矩会越变越小。 2．为什么圆环的内、外径只需单次测量？实验中对转动惯量的测量精度影响最大的是哪些因素？ 答：圆环的内、外径相对圆柱的直径大很多，使用相同的测量工具测量时，相对误差较小，故只需单次测 量即可。（对测量结果影响大小） 实验中对转动惯量测量影响最大的因素是周期的测量。（或者阻尼力矩的影响、摆轮是否正常、平稳的摆动、物体摆放位置是否合适、摆轮摆动的角度是否合适等） 3．试总结用气垫摆测量物体转动惯量的方法有什么基本特点？ 答：原理清晰、结论简单、设计巧妙、测量方便、最大限度的减小了阻尼力矩。 三、混沌思考题 1. 精品文档
有程序（各种语言皆可）、K值的取值范围、图 +5分 有程序没有K值范围和图 +2分 只有K值范围 +1分 有图和K值范围 +2分 2.（1）．混沌具有内在的随机性：从确定性非线性系统的演化过程看，它们在混沌区的行为都表现出随机不确定性。然而这种不确定性不是来源于外部环境的随机因素对系统运动的影响，而是系统自发 精品文档
精品文档 产生的 （2）．混沌具有分形的性质（3）．混沌具有标度不变性（4）．混沌现象还具有对初始条件的敏感依赖性：对具有内在随机性的混沌系统而言，从两个非常接近的初值出发的两个轨线在 经过长时间演化之后，可能变得相距“足够”远，表现出对初值的极端敏感，即所谓“失之毫厘，谬之千里”。 答对2条以上+1分，否则不给分，只举例的不给分。 四、半导体PN 结 （1）用集成运算放大器组成电流一电压变换器测量11610~10--A 电流，有哪些优点? 答：具有输入阻抗低、电流灵敏度高、温漂小、线性好、设计制作简单、结构牢靠等优点。 （2）本实验在测量PN 结温度时，应该注意哪些问题？ 答：在记录数据开始和结束时，同时都要记录下干井中温度θ，取温度平均值θ。 （3）在用基本函数进行曲线拟合求经验公式时，如何检验哪一种函数式拟合得最好，或者拟合的经验公式最符合实验规律？ 答：运用最小二乘法，将实验数据分别代入线性回归、指数回归、乘幂回归这三种常用的基本函数，然后求出衡量各回归方程好坏的拟合度R 2。拟合度最接近于1的函数，拟合得最好。 五、地磁场 （1）磁阻传感器和霍耳传感器在工作原理有什么区别？ 答：前者是磁场变化引起材料阻值变化，最终使得电桥外接电压转变为对应的输出电压；后者是磁场变化引起流经材料内部的载流子发生偏转而产生电压。 （2）为何坡莫合金磁阻传感器遇到较强磁场时，其灵敏度会降低？用什么方法来恢复其原来的灵敏度？ 答：传感器遇到强磁场感应时，对应的磁阻材料将产生磁畴饱和现象，外加磁场很难改变磁阻材料的
Unit 1 Personal Relationship In-Class Reading The Gift of Life 以生命相赠 1 炸弹落在了这个小村庄里。在可怕的越南战争期间，谁也不知道这些炸弹要轰炸什么目标，而它们却落在了一所由传教士办的小孤儿院内。 2 传教士和一两个孩子已经丧生，还有几个孩子受了伤，其中有一个小女孩，8岁左右，双腿被炸伤了。 3 几小时后，医疗救援小组到了。医疗小组由一名年轻的美国海军医生和一名同样年轻的海军护士组成。他们很快发现有个小女孩伤势严重。显然，如果不立即采取行动，她就会因失血过多和休克而死亡。 4 他们明白必须给小女孩输血，但是他们的医药用品很有限，没有血浆，因此需要匹配的血型。快速的血型测定显示两名美国人的血型都不合适。而几个没有受伤的孤儿却有匹配的血型。 5 医生会讲一点越南语，护士会讲一点法语，但只有中学的法语水平。孩子们不会说英语，只会说一点法语。医生和护士用少得可怜的一点共同语言，结合大量的手势，努力向这些受惊吓的孩子们解释说，除非他们能输一些血给自己的小伙伴，否则她将必死无疑。然后他们问孩子们是否有人愿意献血来救小女孩。 6 对医生和护士的请求，孩子们瞪大眼睛，一声不吭。此时小病人生命垂危。然而，只有这些受惊吓的孩子中有人自愿献血，他们才能够得到血。过了好一会儿，一只小手慢慢地举了起来，然后垂了下去，一会儿又举了起来。 7 “噢，谢谢，”护士用法语说。“你叫什么名字？” 8 “兴，”小男孩回答道。 9 兴很快被抱到一张床上，手臂用酒精消毒后，针就扎了进去。在整个过程中，兴僵直地躺着，没有出声。 10 过了一会儿，他发出了一声长长的抽泣，但立即用那只可以活动的手捂住了自己的脸。 11 “兴，疼吗？”医生问。 12 兴默默地摇了摇头，但一会儿忍不住又抽泣起来，并又一次试图掩饰自己的哭声。医生又问是不是插在手臂上的针弄疼了他，兴还是摇了摇头。 13 但现在，偶尔的抽泣变成了持续无声的哭泣。他紧紧地闭着眼睛，用拳头堵住嘴，想竭力忍住哭泣。 14 医疗小组此时非常担忧，因为针不会使他们的小输血者一直感到疼痛。一定是哪里出了问题。恰好这时，一名越南护士前来帮忙。看到小男孩在哭，她用越南话很快地问他原因。听了小男孩的回答后，又立即作了回答。护士一边说，一边俯身轻轻拍着小男孩的头，她的声音亲切柔和。 15 一会儿，小男孩不再哭了，他睁开眼睛，用质疑的目光看着越南护士。护士点了点头，小男孩的脸上马上露出了宽慰的神色。 16 越南护士抬起头平静地对两名美国人说: “他以为自己快死了。他误解了你们。以为你们要他献出所有的血，小女孩才能活下来。” 17 “那他为什么还愿意这么做呢?”海军护士问。 18 越南护士把这个问题向小男孩重复了一遍。小男孩简单地回答道: “她是我的朋友。” 19 他为了朋友甘愿献出自己的生命，没有比这更伟大的爱了。
全新版大学英语(第二版)综合教程2课后答案及翻译 9大学英语练习册2 9单元1 ★课文a 词汇I. 1.1)插入2)在场合3)调查4)回顾5)最初的现象 7)附上8)弥补9)正在等待10)不…至少11)促进1 2)出现 2。这个国家的北部和南部的生活水平有着鲜明的对比。据说天然纤维优于合成纤维。这座城市作为金融中心的重要性发展缓慢。4)他的国籍与他是否是一名好律师无关。一位鲜为人知的16世纪意大利诗人的诗被一些英文杂志转载。 3。1)捡起来，不能完成，有点夸张 2)表现，忽略了，他们申请3)协助，另一方面，是有效的，一个上级2。 1。1)连续2)连续3)连续4)连续 2。1)原则2)原则3)原则4)原则5)原则3。 1。他们自己2。他/她自己3。她自己/独自/独自一人。本身5。我们自己。你自己/你自己/你自己的综合练习一。完形填空 1。1)对比2)夸大3)优先级4)另一方面5)提升 6)拾起7)协助8)完成9)偶尔10)忽略 11)值得的12)优越的 2。1)结束2)执行3)面对4)胜任5)装备
6)设计7)方法8)休息9)绝对10)质量 2。翻译 1。1)背离传统需要巨大的勇气。汤姆过去很害羞，但这次他足够大胆，在一大群观众面前表演了一场。 3)许多教育者认为在孩子很小的时候培养他们的创新精神是可取的。假设这幅画真的是一幅杰作，你认为它值得买吗？ 5)如果数据在统计上是有效的，它将揭示我们正在调查的问题。2。为了提高我们的英语，多读、多写、多听、多说是至关重要的。此外，背诵尽可能多的好文章也很重要。如果你头脑中没有大量优秀的英语写作，你就不能用英语自由地表达自己。在学习过程中总结我们的经验也是有帮助的，因为这样做，我们可以找出哪种学习方式更有效，会产生最理想的结果。只要我们继续努力，我们将在适当的时候完成掌握英语的任务。★文本B 理解检查:c c d a c b语言练习1。g h e c f a b d 2。1)采用2)账户3)从你的角度来看4)最终5)此外6)基金7)年度跟踪9)步调10)打算11)观点12)设计 单元2 ★文本A词汇表 1。1.1)突如其来的情感3)祝福4)磨损5)日期 6)后果7)似乎8)与9)好奇10)真正的11)主要是12)情感 2)相反。1)当你面临不止一个问题时，先试着解决最简单的一个。水对于所有生命形式的存在都是至关重要的。
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Teaching Planning College English Integrated Course Book Three Unit Two The Freedom Givers Zhong wen 1.Background Information Teacher: zhong wen Students: 56 sophomores Content of the textbook: unit-2 text A the Freedom Givers Textbook: foreign language teaching and research press Time duration：10 minutes 2.Textbook Analysis The author tells three stories about the Underground Railroad and early Black civil rights movement. The three stories are chosen because they are representative of all participants in this movement: John Parke r is a freed slave who later turned into a courageous “conductor”; Levi Coffin is a brave white “conductor”; Josiah Henson is a slave who struggled his way to freedom with the help of the Underground Railroad. We learn about the name of Josiah Henson at the beginning of the text, yet his full story is not told until the last part. In this way the author achieves coherence of text. 3.Students Analysis The class is made up of 56 students, with 30 girls and 26 boys ,who have a good knowledge of Basic English, but know very little about the American culture behind the language. So in this introduction part, It is necessary to introduce some background information to the students before reading 4.Teaching Objectives Students will be able to: 1.understand the main idea(early civil-rights struggles in the US, esp. the underground Railroad) 2.grasp the key language points and grammatical structures in the text, 3.conduct a series of reading, listening, speaking and writing activities related to the theme of the unit 4.Appreciate the various techniques employed by the writer (comparison and contrast, topic sentence followed by detail sentences, use of transitional devices,etc.); 5.Teaching Procedures: Greetings Step 1 Lead-in T: Today we are going to talk about the ethic heroes in American history, before the class, I’d like to introduce the slavery to all of you. T: Abraham Lincoln was the 16th president of the United States, during his term of office; he led the civil war and abolished the slavery. T: In the battle against slavery, not only did the president try his best to abolish this system, but also the people, especially the black people living in the South America try hard to fight for their own feat. Today, we will introduce some freedom givers in the American history. Before
UNIT 8 COPING WITH AN EDUCATIONAL PROBLEM I.I. Key words & phrases ability accumulate acquire adequate affect astonish compete complex decline faculty function handful humble idle ignorant jam luxury miracle portable scare slice suggestion swear upset better off break down compete with in amazement make a living by run out of search for sum up Additional Vocabulary scholarship 奖学金 this year’s graduate 应届毕业生 golden collar worker 金领工人 net capital 净资本 academic credit system 学分制 like water off duck’s back 把…当耳边风 netter 网虫 bullet train 子弹头列车 quality of population 人口素质 heuristic education 启发式教育 teach through lively activities 寓教于乐 emeritus professor 名誉教授 degrade oneself 掉（身价） stamp the card 打卡 WAP phone 上网手机 excessive consumption 提前消费 top student 高材生 inter-disciplinary talent 复合型人才 human capital 人力资本 intensive training class 强化班 alleviate burdens on students 减负 online love affair 网恋 magnet train 磁悬列车
1.Only those who have lived through a similar experience can fully appreciate this. 只有那些有过类似经历的人，才能够完全理解这一点。 2. Scientists have been hard pressed to figure out how these particles form and interact . 科学家一直没弄明白这些粒子是怎么形成的、又是如何相互作用的。 3. I’d like to express my special thanks to everyone who has contributed over the years in one way or another. 我要特别感谢每一个在这些年来以不同方式作出贡献了的人。 4. The individual success of the employees in a team environment results in success for the company. 团队环境中员工个人的成功能带来公司的成功。 5. The war, although successful in military terms, left the economy almost in ruins. 这场战争，虽说从军事角度而言是成功的，却另经济几乎崩溃。 6. He decided to channel his energies into something useful, instead of being glued to the TV set all day. / instead of sitting in front of the TV set all day long. 他决定把自己的精力用在有益的事上，而不是整天守在电视机前。 7. There is a difference between strength and courage. It takes strength to survive. It takes courage to live. 力量与勇气是有区别的。生存需要力量，生活需要勇气。 8. She was by nature a very affectionate person, always ready to give a helping hand to others. 她天生是个温柔亲切的人，总是乐于向别人伸出援手。 Unite 6 1.It is only by trail and error that we learn and progress / make progress. 只有通过反复实践我们才能学习和进步。 2.You should know that the education of the heart is very important. It will distinguish you from others. 你应该知道心灵的教育是很重要的。它会使你与众不同。 3. A person who strives for perfection tends to have a low threshold of pain. Things around bother them. 一个追求完美的人对痛苦的容忍度往往很低。周围的事物都会让他们看不顺眼。 4.They regard honesty as a matter of principle and they are willing to sacrifice everything for its sake. 他们认为正直是个原则问题，愿意为之牺牲一切。 6.People judge you by the company you keep. You are inviting trouble if you get into bad company. 人们根据你交往的朋友来判断你。如果与坏人为伍，你就是自找麻烦。 6) Speaking your mind without regard to other people’s feelings is not a virtue. 直言不讳、不顾其他人的感受不是一种美德。 7) Her sensitivity exposes her to more suffering and pain than ordinary people can imagine. 她的敏感另她承受的痛苦比普通人所能想象的要多。 8) We must awaken people to the need to protect our environment. 我们必须使人们意识到保护坏境的必要性。
习题1 1.1选择题 (1) 一运动质点在某瞬时位于矢径),(y x r 的端点处，其速度大小为 (A)dt dr (B)dt r d (C)dt r d | | (D) 22)()(dt dy dt dx [答案：D] (2) 一质点作直线运动，某时刻的瞬时速度s m v /2 ，瞬时加速度2 /2s m a ，则一秒钟后质点的速度 (A)等于零 (B)等于-2m/s (C)等于2m/s (D)不能确定。 [答案：D] (3) 一质点沿半径为R 的圆周作匀速率运动，每t 秒转一圈，在2t 时间间隔中，其平均速度大小和平均速率大小分别为 (A) t R t R 2, 2 (B) t R 2,0 (C) 0,0 (D) 0,2t R [答案：B] 1.2填空题 (1) 一质点，以1 s m 的匀速率作半径为5m 的圆周运动，则该质点在5s 内，位移的大小 是 ；经过的路程是 。 [答案： 10m ； 5πm] (2) 一质点沿x 方向运动，其加速度随时间的变化关系为a=3+2t (SI)，如果初始时刻质点的速度v 0为5m·s -1，则当t 为3s 时，质点的速度v= 。 [答案： 23m·s -1 ] (3) 轮船在水上以相对于水的速度1V 航行，水流速度为2V ，一人相对于甲板以速度3V 行走。如人相对于岸静止，则1V 、2V 和3V 的关系是 。 [答案： 0321 V V V ]
1.3 一个物体能否被看作质点，你认为主要由以下三个因素中哪个因素决定： (1) 物体的大小和形状； (2) 物体的内部结构； (3) 所研究问题的性质。 解：只有当物体的尺寸远小于其运动范围时才可忽略其大小的影响，因此主要由所研究问题的性质决定。 1.4 下面几个质点运动学方程，哪个是匀变速直线运动？ （1）x=4t-3；（2）x=-4t 3+3t 2+6；（3）x=-2t 2+8t+4；（4）x=2/t 2-4/t 。 给出这个匀变速直线运动在t=3s 时的速度和加速度，并说明该时刻运动是加速的还是减速的。（x 单位为m ，t 单位为s ） 解：匀变速直线运动即加速度为不等于零的常数时的运动。加速度又是位移对时间的两阶导数。于是可得（3）为匀变速直线运动。 其速度和加速度表达式分别为 2 2484 dx v t dt d x a dt t=3s 时的速度和加速度分别为v =20m/s ，a =4m/s 2。因加速度为正所以是加速的。 1.5 在以下几种运动中，质点的切向加速度、法向加速度以及加速度哪些为零哪些不为零？ (1) 匀速直线运动；(2) 匀速曲线运动；(3) 变速直线运动；(4) 变速曲线运动。 解：(1) 质点作匀速直线运动时，其切向加速度、法向加速度及加速度均为零； (2) 质点作匀速曲线运动时，其切向加速度为零，法向加速度和加速度均不为零； (3) 质点作变速直线运动时，其法向加速度为零，切向加速度和加速度均不为零； (4) 质点作变速曲线运动时，其切向加速度、法向加速度及加速度均不为零。 1.6 ｜r ｜与r 有无不同?t d d r 和d d r t 有无不同? t d d v 和t d d v 有无不同?其不同在哪里?试举例说明． 解：（1）r 是位移的模， r 是位矢的模的增量，即r 12r r ，12r r r ； （2） t d d r 是速度的模，即t d d r v t s d d . t r d d 只是速度在径向上的分量. ∵有r r ?r （式中r ?叫做单位矢），则 t ?r ?t r t d d d d d d r r r 式中 t r d d 就是速度在径向上的分量，
全新版大学英语综合教程 第二版课后练习答案 This manuscript was revised on November 28, 2020
Unit1 Ways of Learning Vocabulary I 1. 1)insert 2)on occasion 3)investig ate 4)In retrospect 5)initial 6)phenomen a 7)attached 8)make up for 9)is awaiting 10)not; in the least 11)promote 12)emerged 2. 1)a striking contrast between the standards of living in the north of the country and the south. 2)is said to be superior to synthetic fiber. 3)as a financial center has evolved slowly. 4)is not relevant to whether he is a good lawyer. 5)by a little-known sixteen-century Italian poet have found their way into some English magazines. 3. 1)be picked up; can’t accomplish; am exaggerating 2)somewhat; the performance; have neglected; they apply to 3)assist; On the other hand; are valid; a superior II 1)continual 2)continuous 3)continual 4)continuous 5)principal 6)principal 7)principle 8)principles 9)principal III herself by herself/on her own by yourself/on your own Comprehensive Exercises
新编大学英语综合教程3课文翻译
Unit 1 Personality In-Class Reading 羞怯的痛苦 1 对许多人来说，羞怯是很多不愉快的起因。各种各样的人——矮的、高的、愚笨的、聪明的、年轻的、年老的、瘦的、胖的——都说自己是羞怯的。羞怯的人会焦虑不安，感到不自然；也就是说，他们过分地关注自己的外表和举止。脑海中不断盘旋着一些使自己不安的想法：我给人留下的是什么印象？他们喜欢我吗？我讲话是不是傻里傻气？我长得难看。我穿的衣服毫不引人注目。 2 很显然这种不安的感觉会对人产生不利的影响。一个人的自我看法反映在自己的行为方式之中，而一个人的行为方式又影响他人的反应。通常，人们如何看待自己对他们生活的各个方面都会产生深刻的影响。例如，具有积极的自我价值观或很强自尊心的人往往表现出自信。而由于自信，他们不需要他人不断地称赞和鼓励，也能使自己感觉良好。自信者热情、自发地投入生活。他们不因别人认为他们“该”做什么而受到影
响。有很强自尊心的人不会被批评所伤害；他们不会把批评看作是人身攻击。相反，他们认为批评是一种提醒他们改进的建议。 3 相比之下，羞怯的人自尊心较弱，往往消极被动并且容易受他人影响。他们（是否）在做“该做的事情”需要得到别人的肯定。害羞的人对批评非常敏感；他们觉得批评正好证实了他们比别人差。他们也很难因别人的赞美而高兴，因为他们相信自己不值得称赞。羞怯的人也许会用这样的话来回答别人的赞美之辞：“你这么说只是为了让我感觉好一些。我知道这不是真的。”显然，尽管自我意识是一种健康的品质，过分的自我意识却是不利和有害的。 4能否彻底消除或者至少减轻羞怯感呢？幸运的是，人们能够通过坚持不懈的努力建立自信从而克服羞怯。由于胆怯和缺少自尊是密切相关的，因此正视自己的弱点和正视自己的优点一样重要。例如，大多数人希望每门功课都得A。 5 如果仅仅因为在某些领域有困难，就把自己列为差生，这不恰如其分。人们对自己的期望必须现实。老是想那些不可能的事情会令自己觉得无