综合英语教程第三版4 邹为诚主编 第二单元p37 1.玛丽看到一个贼眉鼠眼的男人走进邻居家里。shifty Mary saw a shifty-eyed man walking into a neighbor’s house. 2.鲍勃总是嘲笑我对服饰的眼光。sneer at Bob always sneers at my taste in clothes. 3.打探别人的秘密是不礼貌的。pry It is impolite to pry into other’s secrets. 4.我想克里斯想要抢我的饭碗。be after sth I think Chris is after my job. 5.她看到克里斯给他使的眼色，说话的声音便越来越小了。trail off She trailed off, silenced by the look Chris gave her. 6.那些树枝干而易断。brittle The branches were dry and brittle. 7.收音机老是发出噼里啪啦的声响，我们几乎听不清里面说些什么。crackle The radio cracked so much that we could hardly hear what was said. 8.地面向海倾斜。slope The land slopes down to the sea. 9.他的口袋里鼓鼓囊囊的塞满了钞票。bulge His pockets were bulging with money. 10.我不得不和出租车司机就车费讨价还价。haggle I had to haggle with the taxi driver over the fare. 第三单元p58 1. 这样的好机会千载难逢。once in a blue moon An opportunity as good as this arises/occurs only once in a blue mo on. 2. 这个孩子因为私自拿了母亲包里的钱而觉得十分愧疚。guilty of The boy felt guilty for taking money from his mother’s handbag with out permission. 3. 她知道他的话一句真的也没有。give credence to She did not give credence to a single word of his story. 4. 一般来说，老师对学生的错误都比较宽容。be tolerant of Generally speaking, teachers are tolerant of their students’ mistakes. 5. 我想当然地以为你会跟我们一起来，于是就给你买了票。take… for granted I took it for granted that you’d want to come with us, so I boug ht you a ticket. 6. 由于经理的不断劝导，工作人员很快就改掉了迟到的坏习惯。break the habit Thanks to the manager’s repeated counseling, the staff soon broke th e bad habit o f comin g late to work. 7. 他现在对她发火，但不久会原谅她的。这只是几小时的事，仅此而已。a matter of, that’s all He’s furious with her now, but he’ll forgive her soon. It’s just/ only a matter of a few hours, that’s all. 第四单元p78
第五节沉淀滴定法 教学目的： 1、掌握沉淀滴定法对反应的要求。 2、掌握银量法确定理论终点的方法原理。 3、明确分级沉淀及沉淀转化的概念。 4、理解测定氯化物的条件。 教学重点与难点：莫尔法（铬酸钾作指示剂）作为教学重点。 教学内容： 一、方法简介 沉淀滴定法（precipitation titration）：也称容量分析法（volumetric precipitation method），以沉淀反应为基础的滴定分析方法。 用作沉淀滴定的沉淀反应必须满足以下条件： （1）反应速度快，生成沉淀的溶解度小； （2）反应按一定的化学式定量进行； （3）有准确确定理论终点的方法。 应用范围：含量在1%以上的卤素化合物和硫氰化物的测定。 解释：沉淀反应很多，但能用于沉淀滴定的沉淀反应并不多，因为很多沉淀的组成不恒定，或溶解度较大，或形成过饱和溶液，或达到平衡速度慢，或共沉淀现象严重等。目前比较有实际意义的是生成微溶性银盐的沉淀反应。 Ag++ Cl- = AgCl↓ Ag++ SCN- =AgSCN↓ 以这类反应为基础的沉淀滴定法称为银量法。主要测定Cl-、Br-、I-、Ag+及SCN-等。 如有一些沉淀HgS、PbSO4、BaSO4等也可用于沉淀滴定法，但重要性不及银量法。
二、银量法确定理论终点的方法 莫尔法 银量法佛尔哈德法 法杨司法 1、莫尔法 什么是莫尔法？以铬酸钾作指示剂的银量法称为“莫尔法”。 以铬酸钾为指示剂，在中性或弱碱性介质中，用硝酸银标准溶液测定卤素化合物含量。 （1）指示剂作用原理： Ag+ + Cl- AgCl↓白Ksp（AgCl）= 1.8 ×10-9 Ag+ + CrO42-Ag2CrO4↓橙色Ksp（Ag2CrO4）= 2 ×10-12 因为AgCl和Ag2CrO4的溶度积不同，因而发生分级沉淀，当AgCl沉淀完全后，稍过量的AgNO3标准溶液与K2CrO4指示剂反应生成Ag2CrO4↓砖红色（量少时为橙色）。 平衡时，[Ag+]·[Cl-] = Ksp AgCl 设溶液中[Cl-] = [CrO4]2-= 0.1mol/L Ksp AgCl 1.8 ×10-10 [Ag+]AgCl = = = 1.8×10-9（mol/L） [Cl-] 0.1 Ksp（Ag2CrO4） 2 ×10-12 = = = 4.5×10-6（mol/L）[Ag+]Ag 2CrO4 [CrO42-] 0.1 由此可见：[Ag+][Cl-]首先大于Ksp AgCl，则AgCl开始沉淀。 [Cl-]消耗完之后，AgNO3和CrO42-生成Ag2CrO4沉淀。 （2）铬酸钾指示剂的适合用量的计算 根据溶度积原理： Ag++ Cl- = AgCl K SP = 1.8×10-10
Unit 1 lexf Organization
II. More Synonyms in Context 1) During the First World War, battles occurred here and there over vast areas. Some of the most dramatic fighting took place in the gloomy trenches of France and Belgium. 2) Elizabeth made careful preparations for the interview and her efforts / homework paid off. 3)1 spent hours trying to talk him into accepting the settlement, but he turned a deaf ear to all my words. 4) Pneumonia had severely weakened her body, and I wondered how her fragile body could withstand the harsh weather.
- 90 - Appendix I III. Usage 1)But often it is not until we fall ill that we finally learn to appreciate good health. 2)A rich old lady lay dead at home for two weeks—and nobody knew anything about it. 3)It's said he dropped dead from a heart attack when he was at work 1)Don't sit too close to the fire to keep warm—you could easily get burned, especially if you fall asleep. 4)In those days people believed in marrying young and having children early. 5)Little Tom was unable to sit still for longer than a few minutes. ■ Structure 1. 1) To his great delight, Dr. Deng discovered two genes in wild rice that can increase the yield by 30 percent. 2)To her great relief, her daughter had left the building before it collapsed. 3)To our disappointment, our women's team lost out to the North Koreans. 4)We think, much to our regret, that we will not be able to visit you during the coming Christmas. 2. 1) These birds nest in the vast swamps (which lie to the) east of the Nile. 2)By 1948, the People's Liberation Army had gained control of the vast areas north of the Yangtze River. 3)Michelle was born in a small village in the north of France, but came to live in the United States at the age of four. ■ 4) The Columbia River rises in western Canada and continues/runs through the United States for about 1,900 kilometers west of the Rocky Mountains. Comprehensive Exercises I. Cloze (A) 1. invasion 3. Conquest 5. launching 7. campaign 9. reckon with 2. s tand in the way 4. c atching... off his guard 6. d eclaration 8. d rag on 10. b ringing...to a
Unit One Task 1 1.A 2.C 3.B 4.C 5.D 6.D 7.D 8.C 9.A 10.D 11.A 12.B Task 2 1.public(c) 2.discipline(b) 3.strength(a) 4.reference(a) 5.strength(d) 6.public(a) 7.demonstrated(b) 8.discipline(c) 9.references(c) 10.personality(a) 11.discipllining(d) 12.demonstrates(a) 13.public(d) 14.reference(b) 15.personality(c) Task 3 1.employment 2.paid 3.adjust 4.setting 5.discouraged 6.credit 7.cite 8.demonstrate 9.teamwork 10.rules Unit Two Task 1 1.A 2.B 3.B 4.C 5.B 6.A 7.B 8.C 9.A 10.C Task 2 1. bud (n.); budding (adj.) 2. access (n.); access (v.) 3. taste (n.);tasted (v.) 4. fool (n.); fooling (v.) 5. produces (v.); produce (n.) 6. garnish (v.); garnishes (n.) 7. reigns (v.); reign (n.) 8. concern (n.); concerned (v.) 9. named (v.); name (n.) 10. practiced (v.); practice (n.) Task 3 1) integration 2) choice 3) handed 4) aspiring 5) steaming 6) masterpieces 7) pleasure 8) partake 9) amazing 10) presented Unit Three Task 1 1.A 2.B 3.C 4.B 5.A 6.B 7.C 8.A Task 2 1. stack up against 2. struck a chord 3. amounted to 4. chopping off 5. appeal to 6. pick up on 7. turned out 8. fade away 9. brought together 10. pulled off 11. thrust upon 12. be kept clear of Task 3 1) swirling 2) delivered 3) glowed 4) intervals 5) converge 6) wanderings 7) navigate 8) jealousy 9) presence 10) absorbed Unit Four Task 1 1.A 2. A 3. C 4. B 5. B 6. C 7. D 8. C 9. A 10. C Task 2 1. maintained (a) 2. romantic (a)
攻势已经持续了三天，但是我们并没有取得多少进展。我们在前线与敌人交战的部队遇到了强力的抵抗。师长（DIVISION COMMANDER）命令我们营（BATTALION）绕到敌人后方发起突然袭击。然而，要绕到敌人后方，我们必须越过一片沼泽地（MARSHLAND）。我们很多人担心会陷入泥潭之中。我们营长决定冒一下险。我们在夜幕掩盖下出发，不顾困难，奋勇向前。幸运的是，夜间温度突然下降到摄氏零下20度，烂泥地都结上了冰。由于这寒冷的天气，我们于天亮前到达并从敌人后方发起进攻。这一下扭转了战局。敌人没有戒备，不久便投降了。 The offensive had already lasted three days, but we had not gained much ground. Our troops engaging the enemy at the front were faced with strong/fierce/stiff resistance. The division commander instructed our battalion to get around to the rear of the enemy and launch a surprise attack. To do so, however, we had to cross a marshland and many of us were afraid we might get bogged down in the mud. Our battalion commander decided to take a gamble. We started under cover of darkness and pressed on in spite of great difficulties. By a stroke of luck, the temperature at night suddenly dropped to minus 20 degrees Celsius and the marsh froze over. Thanks to the cold weather, we arrived at our destination before dawn and began attacking the enemy from the rear. This turned the tide of the battle. The enemy, caught off guard, soon surrendered. Unit 2 汽车在二十世纪改变了世界，尤其是在美国和其他工业国家。汽车确实对我们大有用处，但也带来了一些危害，比如声音污染、空气污染以及公路死亡事故。据报导汽车事故被列为全世界导致死伤的主要原因之一。可庆幸的是，现代发明家们正在重新发明汽车。新的推进系统（PROPULSION SYSTEM）、燃料、设计以及制造汽车的手段在过去的十年中得到迅速发展。例如，通过使用卫星辅助的全球定位系统，汽车里的计算机能给汽车精确定位；随着遥感器的应用，智能汽车能排除不少汽车事故。 Automobiles changed the world during the 20th century, particularly in the United States and other industrialized nations. They are indeed of great use to us, but they have brought some hazards as well, such as noise and air pollution, and highway fatalities. It is reported that automobile accidents rank among the leading causes of death and injury throughout the world. Fortunately modern innovators are reinventing the automobile. New propulsion systems, fuels, designs, and means of manufacturing cars have all developed rapidly in the past decade. For example, by using the satellite-aided global positioning system (GPS), a computer in the automobile can locate the vehicle's precise position, and with the application of sensors, smart cars can eliminate most car accidents.
Unit 1 1. Lively behavior is normal for a four-year-old child. (活泼的举止是正常的) 2. Fast cars appeal to John, but he can’t afford one. (速度快的车对······有吸引力) 3. Dave required a lot of time to study the diverse arguments. (多种多样的论据) 4. I asked my boss for clarification, and she explained the project to me again. (我要求我的上司为我解释清楚) 5. Photographic film is very sensitive to light. (对光很敏感) 6. Mutual encouragement can be a great help, especially in the early days. (互相鼓励) 7. Jimmy cried when people made fun of him. (拿他开玩笑) 8. John won’t give up. He persists in his opinion/viewpoint. (坚持他的观点) 9. Ted always wants to be the focus/center of attention.(成为注意的焦点) 10. Is it cheaper if we buy our tickets in advance. (我们提前买票) Unit2 1.However, the main drawback with this type of search engine (这种搜索引擎的主要缺陷) is its tendency to include too much information. 2.She’s very generous with her time(她从不吝惜自己的时间)—always ready to help other people. 3.you may have known someone else for 20 years and yet they will never be more than casual acquaintances (他们永远只是泛泛之交). 4.He doubted that the car was hers (他怀疑这车不是他的) because everyone knew she had no money. 5.It’s impossible to forget such horrific events — they will remain in the memory forever(它们 会永远留在记忆中). 6.In a world too often filled with uncertainties (在这样一个常常充满各种不确定性的世界上), it is nice to have a safety net, something you can rely on. 7.The earthquake happened a year ahead of the prediction by the research group (比该研究小 组的预报提前了一年), but earthquakes are usually difficult to predict. 8.I don’t mind being awakened once or tw ice in the middle of the night by my roommate so long as she doesn’t make a habit of it (只要她不养成习惯). Unit3 1. Their study shows that sports skills carry over into personal life (可以运用到个人生活中). 2. I find myself calling on the boys more often (更多地叫男生回答问题), because they tend to be the ones having trouble staying on task. 3. I used to have trouble getting all the laundry put away (把要洗的衣服放好) before it was time to do the next batch. 4. After her time in hospital, Jenny’s parents are afraid she has fallen behind academically (在学业
Key to book4 un it1-4 Unit 1 Active readi ng (1) Look ing for a job after uni versity? First, get off the sofa Read ing and un dersta nding Dealing with unfamiliar words 3 Match the words in the box with their definitions. 1 to make progress by moving to the n ext stage in a series of acti ons or events (proceed) 2 the process of cha nging from one situati on, form or state to ano ther (tra nsiti on) 3 not feeli ng in volved with some one or someth ing in a close or emoti onal way (detached) 4 referri ng to somethi ng which will happe n soon (upco ming) 5 to be sitting still in a position that is not upright (slump) 6 to retur n to a previous state or way of behav ing (revert) 7 to say what happe ned (reco unt) 4 Complete the paragraph with the correct form of the words in Activity 3. It isn ' t easy to make the (tr)a nsiti on from a busy uni versity stude nt to an un employed young adult (2) slumped on a bar stool or half watch ing a min dless televisi on show, wondering if and how their career is going to (3) proceed . Many people who have experie need a long period of in activity like this, whe n (4) reco un ti ng how they felt at the
第一课： 一、written work Time is important .Everyone has 24 hours in a day ,and 365 days in a year. Once a day runs out in our life,it will never come back again.If we love our lives,we shouldn't waste time.we must control time.The best way to use time is to plan it well. When making the study plan,we should remember two things .First ,be realistic.Don't try to do too many things .Second ,a good study plan should be flexible .We may make some small changes,but follow the same pattern. Let's be the master of time ,start our plan now. 二、 1、I have run out of food ,I must go to buy some. 2,You have said so ,you should put them into practice . 3.It takes at least two hours to get there by bus. 4.Although we failes,at least we tried our best . 5.you speak louder so that everyone can hear you. 6.How long has it taken you to write that article? 7.You seem to be very sad .Tell us what has happened so that we may help you. 8.We should keep our classroom clean. 9.We may asd Xiao Wang to help us ,he seems to have a lot of time. 10.My brother will come to Beijing next week. he must make good use of time to stay here. 三、用本课的动词句型1。 1. You are the person whom(who)I'm looking for.
Unit1 Working with words and expressions 1. 2. cloze Translation
Answers to Unit 2 Book 4 Unit Two Man and Technology Words in Action Working with Words and Expressions 1. 1) monitor 2) phenomenon 3) isolation 4) gradual 5) opponent 6) advent 7) genetic 8) consciously 9) extreme 10) nasty 11) boom 12) formal 13) soar 14) survey 15) Similarly 16) modify 17) rough 2. 1) at the same time 2) are stuck with 3) for certain 4) make no difference 5) on average 6) when it comes to 7) depends on 8) built into 9) come to mind 10) at work Increasing Your Word Power 1. Adjectives Nouns Adjectives
Nouns 1) technological technology 6) luxurious luxury 2) eternal eternity 7) leisurely leisure 3) miraculous miracle 8) subjective subject 4) relevant relevance 9) prosperous prosperity 5) analytical Analysis 10) innovative innovation 2. 2) multi-faith 3) multiform 4) multifunction 5) multi-ethnic 6) multilateral 7) multi-lingual 8) multimedia 9) multimillionaire 10) multinational 1) a multi-faith society 2) a multi-lingual secretary 3) a multimillionaire 4) a multinational motor-manufacturing corporation 5) a multifunction video camera
Unit1 1, There has been this long lull with nothing particular turning up! you are beginning to be anxious because there has been no progress of the war in such a long quiet period… 2,we must "...meet with Triumph and Disaster. And treat those two impostors just the same." We are sure to experience both Triumph and Disaster and we must treat them as the same thing taking different appearances because they are essentially interchangeable. 3,never give in, except to convictions of honor and good sense Never give in unless we are convinced that it is honorable and sensible for us to do so. 4,Britain, other nations thought, had drawn a sponge across her slate. Britain, in other nations’ eyes, was completely wiped out/conquered. 5,we have only to persevere to conquer. … we have no choice but to hold on until victory comes. Unit2 1, The phrase "personal space" has a quaint, seventies ring to it The phrase “personal space” sounds old-fashioned and reminds one of the seventies…2, T-shirt weather can make proximity more alluring (or much, much less). … I have suspected that maybe the cause (of the space invasion) is the season: summer may either make people want to be closer to each other or more likely, to keep a distance between each other. 3, The logistics of it vary according to geography people in different regions are given different size of personal space. 4, individuals routinely commandeer booths and sets of facing seats meant for foursomes. …individuals, as usual, occupy the booths and seats which are desi gned for four people. 5,In the same way that the breeze from a butterfly's wings in Japan may eventually produce a tidal wave in California, I have decided to expand the contracting boundaries of personal space. Because the initial invasion of personal space can cause a chain of reactions, which may bring about a catastrophic consequence, as the breeze from a butterfly’s wings in Japan, if it initiates a chain of waves, may eventually produce a tidal wave in California, I have decided to enlarge the shrinking personal space. Unit3 1,Given the relatively few restrictions governing access and usage, it is the communications modal equivalent of international waters As there are relatively few restrictions for reaching and using the Internet, communications via the Internet are comparable to traveling through the international waterways. 2,But much less widely reported has been the notion that the Internet may be responsible for furthering the fragmentation of society by alienating its individual users A lot of people talk about the “new information age”, but not so many people are acquainted with the idea that the Internet separates people form each other and fragments society further as a result
Unit 1 C 1.The younger generation should continue to sustain and develop our fine traditions and long-standing culture. 2.In the course of preparing one’s speech, one should be clearly aware of how one could make effective use of statistics and examples to bolster one’s point of view. 3.An impromptu speech is one of the speaking skills that college students should learn and develop through practice. 4.By using simile and metaphor, you can make your language more vivid and more attractive to your audience. 5.The proper examples you cite might help reinforce the impression on your listeners and make your viewpoints more convincing. 6.When you are speaking, you should choose common and easy words and at the same time avoid clutter in your speech. 7.When you write a paper, citing the views from some experts is a good way to make your ideas more credible. 8.A good method of delivering a speech will improve its quality and will help convey the speaker’s ideas clearly and interestingly.
新标准大学英语综合教程4课后翻译 Uint 1 If you ask me, real life is not all it's cracked up to be. Twelve years at school and three years at uni versity, teachers banging on about opport un ities in the big wide world bey ond our sheltered life as stude nts, and what do I find? 依我看，现实生活与人们想象的不一样。我们上了12年的中、小学，又上了3年的大学， 这期间老师们一直在没完没了地谈论在安宁的学生生活之外那个广阔天地里的各种机会，可 我遇到的又是什么呢？ Try as I might to stay cheerful, all I ever get is hassle, sometimes with people (especially boys, god, whe n will they grow up?), but mostly with mon ey. It's just so expe nsive out here! Everyone wants a slice off you. The Inland Revenue wan ts to deduct in come tax, the bank man ager wants repayments on my student loan, the Iandlord wants the rent, gas, water, electricity and my mobile bills keep coming in, and all that's before I've had anything to eat. And then some bright spark calls me out of the blue, ask ing if rm in terested in buying a pension. At this rate, I won't even last till the end of the year, let alone till I'm 60. 无论我怎么想保持心情愉快，麻烦事总是接踵而来：有时是跟人争吵(尤其是跟男孩，天哪！他们什么 时候才能长大？)，但通常是为钱发愁。这个地方什么东西都很贵！人人 都想从我身上拿点钱去：国税局要收个人所得税，银行经理要我偿清学生贷款，房东催我 交房租、燃气费、水费、电费，手机账单也不断地寄来。所有这些还没算上吃饭的钱。更 可气的是，不知从哪里冒出一个自作聪明的家伙冷不丁地给我打电话，问我要不要买养老金。 照这样下去，我连今年都活不过去了，更别提活到60岁领养老金了。 汉译英 我认为，选修第二专业并不适合每一位本科生。我大学本科主修英语专业，大一时就开始辅修经济学了。无疑，我是班里最用功的学生。我竭尽全力想同时达到两个不同专业的 要求，但还是有不及格的时候。因为经济学需要良好的数学基础，我不得不花大量时间钻 研数学，因而忽略了英语学习。 If you ask me, tak ing a sec ond major isn't good for every un dergraduate. In my freshma n year as an En glish major, I took economics as my minor. By all odds, I was the most hardwork ing stude nt in my class. But try as I might to meet the requireme nts of the two differe nt subjects, I still could n't do well eno ugh to pass all the exams. Given that the study of econo mics required a good comma nd of mathematics, I had to spe nd so much time on math that I n eglected my En glish major. 第二学期，《英国文学》及《宏观经济学》两门课不及格给我敲响了警钟，这可是我一生中第一次考 试不及格，这大大打击了我的自信心。虽然我不是一个容易向命运低头的人， 在暑假结束的时候，我还是决定放弃经济学，以免两个专业都难以完成。当我只需修一个 专业的时候，一切似乎又回到了正轨。(if you ask me; odds; try as …might; sap on e's con fide nee; give n that; bow to fate;come to a close; for fear that; now that) Faili ng En glish Literature and Macroec onomics in the sec ond semester soun ded the alarm for me. This was the first time I did not pass a course in my life, which had greatly sapped my con fide nee. Although I was n ot a man who would easily bow to fate, as the summer break came to a close, I decided to give up econo mics for fear that I would fail in both subjects. Now that I had only one subject to attend to,everything seemed to be on the right track again. Uint2 In dubitably the vast majority of books overlap one ano ther. Few in deed are those which give the impressi on of orig in ality, either in style or in content. Rare are the unique books -less tha n 50, perhaps, out of the whole storehouse of literature .In one of his recent auto-biographical no vels, Blaise Cendrars points out that R my de GSurmont, because of his knowledge and awareness of this repetitive quality in books, was able to select and read all that is worthwhile in the entire realm of literature.Cendrars himself —who would suspect it? —is a prodigious reader. He reads most authors.Not only that, but when he likes an author he reads every last book the man has written, as well as his letters and all the books that have been written about him. In our day his case is almost un paralleled, I imagi ne.For, not only has he read widely and deeply, but he has himself written a great many books. All on the side, as it were. For, if he is anything, Cendrars, he is a man of action, an adventurer and explorer,a man who has known how to ——waste II his time