新标准大学英语第三册第二单元综合教程单元检测100%
2021年高一12月月考 英语 Word版含答案
2021年高一12月月考英语 Word版含答案时量：120分钟总分：150 分I :听力（30 marks）Section A ( 22. 5 points)Directions: In this section. you will hear 6 conversations between the speakers. For each conversation there are several questions and each question is followed by three choices一 Listen to the conversations carefully and then answer the questions by marking the corresponding letter( A , B or C) on the question booklet. You will hear each conversation twice.Conversation I1. How does the man usually get LO work'?A. By taxi.B. By underground.C. On foot.2. What does the man think of his journey to work?A. the fare is reasonable.B. The traffic is always terrible.C. It takes too much time and money.Conversation 23. Who is the woman?A. An air hostess.B. A policewoman.C. A clerk in an airline pany.4. Where does the man probably stay now?A. In Seattle.B. In New York.C. In Los Angeles.Conversation 35. How did the man find the flat for the woman?A. He found it by accident.B. He found it in the newspaper.C. His flatmates moved out.6. How much per month do they have to pay?A. $ 100.B. $ 120.C. $ 125.Conversation 47. What ' s the relationship between the woman and the man7A. Teacher and student.B. Classmates.C. Mother and son.8. Why didn ‘ t the ma n e to the class?A. He had been writing reports all day long.B. He was too tiredto go out. C. He nearly lost his confidence.9. What can we know about the man?A. He is probably from an English-speaking country.B. He is interested in learning foreign languages.C. He had studied German before he came.Conversation 510. Where was Colin Boyle born?A. In Dublin.B. In London.C. In Paris.11. Why wasn ' t the woman able to get the tickets for the concert?A. All tickets were sold out.B. She is too poor to buy a concert ticket.C. She couldn ' t afford the expensive tickets.12. How will the woman get the tickets?A. The singer will give the woman the tickets.B. The woman will get some tickets at the cheaper price.C. The concert hall manager will let them in free of charge.Conversation 613. What will they use to advertise their product?A. TV , radio and newspaper.B. Magazine , newspaper and advertising boards.C. TV , newspaper , magazine and cinema.14. Why do they think that customers will want to buy the product?A. It ' s not very expensive.B. It Iook8 good, moves well and fast.C. It ' s newly-developed.15. How long a time will the advertising last?A. Three months.B. Three weeks.C. Five months.Section B ( 7. 5 points)Directions :In this section .you will listen to a mini-talk. Fill in the numbered blanks with the information you ' ve got. Fill in the blanks with no more than three words. You will hear the mini-talk TWICE.Opinions on Whether People Should Keep Pets at Home in CitiesII. 单项选择 (15)21. It is in the big factory ______________my father works.A. whereB. thatC. whichD. in which22. ___ the first day, at the meeting, I sat next ____ a girl named Diana.A. On, withB. At, toC. In , byD. On, to23. I used to use English a lot and spent an hour each day _____ English books in the library.A. readingB. to readC. readD. reads24.__ he is young, he knows a lot.A. ThroughB. AsC. WhileD. Due to25. Tom has gone to Shanghai,_____ is in the east of China.A. whereB. whoC. whichD. that26.He did not go to school yesterday ___________the heavy rain.A. becauseB. because ofC. for thatD. why27. The _______ boy made the police and his family _______.A. gone; puzzledB. missing; puzzledC. missing; puzzlingD. lost; puzzling28. Mr Ma is the person _____ w learned how to write with brushes.A. whomB. from whoC. from whomD. from which29. My mother suggested that she _____ me to the hospital, where I receivedgood medical treatment.A. sentB. sendedC. sendD. to send30. There is no hard evidence ____ aliens took Justin that night.A. thatB. whatC. whichD. how31. When ____ about the possibility that Justin was taken away by aliens,Detective San Peterson, who has taken charge of the case, didn’t say much.A. askingB. askedC. to askD. ask32. The workers ______ a new restaurant. It is said that the construction work will be finished next month.A. have builtB. have been buildingC. builtD. had built33. As Mary ______ a poem, her little sister ______ asleep.A. was reading, has fallenB. was reading, was fallingC. was reading, fellD. read, was falling34. The students went into the classroom,________.A. talking and laughingB. talk and laughC. talked and laughedD. to talk and laugh35. Great changes ___________in my hometown in the past 30 years.A. took placeB. have taken placeC. would take placeD. take placeIII. 完形填空( 30 marks )A : Directions: For each blank in the following passage there are four words or phrases marked A, B, C and D. Fill in each blank with the word or phrase that best fits the context.Nowadays we can see more and more electric bikes in the street. Electric bikes are easy 36 . They run fast and make 37 pollution. So they bee very 38 in many big cities in China.But the electric bikes also 39 more traffic accidents. So China plans to make a new rule_ 40 the electric bike riders. If an electric bike is 41 than 40 kilos and can go faster than 20 kilometers an hour, its rider must get a 42 It means riders have to pass driving tests 43 they ride their electric bikes on the road.People have different ideas about the plan. 44 wele the plan because they think it will make the street much safer. But some are not 45 the new rules at all. One rider said, “I don’t want to get a license or 46 like that. That’s too much trouble.”What’s your idea? Have you ridden an electric bike yet? Share your opinion or your own experience 47 us!36. A. ride B. to be ridden C. riding D. to ride37. A .much B. many C. few D little38. A. popular B. difficult C. strong D interesting39. A. plan. B. cause C. provide D decide40. A. from B. to C. for D with41. A. bigger B. heavier C. longer D better42. A. license B. photo C. ID card D magazine43. A. during B. after C. before D though44. A. None B. Some C. Each D Every45. A. terrified of B. worried about C. sorry about D happy with46. A. something B. nothing C. anything D everything47.A. to B. with C. by D. onB: Directions: the following passage by filling in each blank with one word that best fits the contextTraffic Safety(交通安全)Traffic safety is everybody's business. Records show 48 every yeara lot of people die in traffic accidents. Some of the accidents are due49 mechanical problems. However, most of them are the results of careless 50 reckless driving, and could be avoided. A lot of people disregard traffic signals and rules. They drive regardless of speed limits, run through 51 lights, drive in the wrong direction, talk and laughwhile 52 , and turn as they wish without giving signals. They 53 slow down while approaching(接近) crossroads. So many people violate traffic regulations that we cannot put too much emphasis on 54 importance of traffic safety. Only when everybody thinks traffic safetyis everybody's business can we be safe driving on roads and walking55 sidewalks（人行道）.IV.阅读理解（30 marks）ASome time ago I discovered that one of my chairs had a broken leg. I didn’t think there would be any difficulty in getting it mended, as there area whole lot of antique(古董) shops near my home. So I left home one morning carrying the chair with me. I went into the first shop expecting a friendly reception (接待). I was quite wrong. The man wouldn’t even look at my chair. The second shop, though slightly more polite, was just the same, and the third and the fourth－so I decided that my approach must be wrong.I entered the fifth shop with a plan in my mind. I placed the chair on the floor and said to the shopkeeper, "Would you like to buy a chair?" He lookedit over carefully and said, "Yes, not a bad chair. How much do you want for it, sir?" "Twenty pounds," I said. "OK," he said, "I’ll give you twenty pounds." "It’s got a slightly broken leg," I said. "Yes, I saw that, it’s nothing."Everything was going according to plan and I was getting excited. "What will you do with it?" I asked. "Oh, it will be easy to sell once the repairis done." "I’ll buy it," I said. "What do you mean? You’ve just sold it to me," he said. "Yes, I know but I’ve changed my mind. I am sorry. I’ll give you twenty-seven pounds for it." "You must be crazy," he said. Then, suddenly the penny dropped. "I know what you want. You want me to repair your chair." "You’re right," I said. "And what would you have done if I had walked in and said, “ Would you mend this chair for me?”. “I wouldn’t have agreed to do it," he said. "We don’t do repairs, not enough money in it and too much trouble. But I’ll mend this for you, shall we say for a fiver (five pounds)?" He was a very nice man and was greatly amused (感到有趣) by the whole thing.56. We can learn from the text that in the first shop the writer _____.A. was rather impoliteB. was warmly receivedC. asked the shopkeeper to buy his chairD. asked the shopkeeper to repair his chair57. The underlined word "approach" in the second paragraph means _____.A. plan for dealing with thingsB. decision to sell thingsC. idea of repairing thingsD. way of doing things58. The expression "the penny dropped" in the last paragraph means the shopkeeper _____.A. changed his mindB. accepted the offerC. saw the writer’s purposeD. decided to help the writer59. How much did the writer pay?A. ￡5.B. ￡7.C. ￡20.D. ￡27.60. From the text, we can learn that the writer was _____.A. honestB. carefulC. smartD. funnyBI know what you’re thinking：pizza? For breakfast? But the truth is that you can have last night’s leftovers in the a. m. if you want to.I know lots of women who skip breakfast, and they have a ton of different excuses for doing it. Some say they don’t have time, others think they’re “saving” calories（卡路里）, still others just don’t like breakfast food.But the bottom line is that eating in the morning is very important when you’re trying to lose weight. “Eating just about anything from 300 to 400 calories would be better than nothing at all，”says Katherine Brooking, R. D.，who developed the super-easy eating plan for this year’s“SELF CHALLENGE”. And even pizza can be healthy if it’s loaded with v egetables, and you stick to one small piece.Breakfast is one meal I never miss, and the same goes for most weight loss success stories. Research shows that eating breakfast keeps you from overeating later in the day. Researchers at the University of Southern California found that breakfast skippers have a bigger chance of gaining weight than those who regularly have a morning meal.So eat something in the morning, anything. I know plenty of friends who end up having no breakfast altogether, and have just coffee or orange juice. I say, try heating up last night’s leftovers-it may sound crazy, but if it works for you, do it! I find if I tell myself', “You can always eat it tomorrow, ”I put away the leftovers instead of eating more thatnight. Try it…you may save yourself some pre-bedtime calories. And watch your body gain the fat-burning effects.61. The word “leftovers” in Paragraph 1 probably means __________.A. pizza topped with fruitB. things left undoneC. meals made of vegetablesD. food remaining after a meal .62. According to the last paragraph, it is important to__________.A. eat something for breakfastB. be careful about what you eatC. heat up food before eating itD. eat calorie-controlled food63. What can we infer from the text?A. Working women usually have breakfast in a hurry.B. Many people have wrong ideas about breakfast.C. There are some easy ways of cooking a meal.D. Eating vegetables helps save energy.64. The text is written mainly for those__________.A. who go to work earlyB. who stay up lateC. who want to lose weightD. who eat before sleep65. What does the author advise the readers to do?A. Better eat up all the food at dinner in the night.B. Better eat less in the night.C. Better eat leftovers in the morning.D. Better get up late and eat nothing in the morning in order to burn more calories.CAs we all know, the Dragon Boat Festival is our country’s traditional festival, but do you know there is also a Dragon Boat Festival in South Korea, which also falls on May 5 of the lunar calendar(阴历)? It has been reported that South Korea will apply to United Nations Educational, Scientific and Cultural Organization (UNESCO 联合国教科文组织) to make the celebration of the Dragon Boat Festival its own intangible cultural heritage (非物质的文化遗产). If successful, people from other countries may see the Dragon Festival as a Korean creation.As the birthplace of the yearly event more than 2,000 years ago, China is not happy with the situation. "It would be a shame if another country successfully made a traditional Chinese festival part of its own cultural heritage ahead of China," said Zhou Heping, deputy(副) culture minister. The Ministry of Culture is even thinking of making its own application to UNESCO, covering all traditional Chinese festivals, including the Dragon Boat event.It is thought that the festival is held in memory of the great poet Qu Yuan (340-278 BC), who lived in the State of Chu during the Warring States Period. Qu was known to be a patriot (爱国者) and admired by ordinary people.He is said to have jumped into Miluo River, because he had lost hope in his country's future. When people heard about Qu's death, they sailed up and down the river searching for his body. They also beat the drums to frighten away the fish and threw Zongzi into the water to stop the fish touching Qu. Dragon boat racing is said to e from this search for the poet's body.Over the years, the Dragon Boat Festival has spread throughout the world. In Japan and Viet Nam, as well as South Korea, the festival has mixed with and bee part of the local culture.66. The Dragon Boat Festival _______.A. is also kept by South KoreaB. es from South KoreaC. was created by South KoreaD. is South Korea’s cultural heritage67. What is the reaction of the Ministry of Culture to South Korea’sintending to make the Dragon Boat Festival its own culture heritage?A. Fighting against South KoreaB. Telling S outh Korea it’s not right to do soC. Considering to do the similar thingD. Asking South Korea not to do so.68. What is the purpose of the Dragon Boat Festival’s being held?A. In memory of Qu YuanB. In memory of all the patriots of ChinaC. To frighten away the fishD. In honor of QuYuan’s birthday69. After Qu Yuan’s death, Zongzi was thrown into the water to _______.A. feed him.B. protect his body from going bad.C. prevent the fish biting his bodyD. attract his soul70. Now, the Dragon Boat Festival has bee ______ activity.A. a nationwideB. a worldwideC. an AsianD. a foreignV．摘录信息阅读下面短文，根据所读内容在文后空格里填上适当的单词或短语，并将答案转写到答题卡上。
GB10026—88三股锦纶复丝绳索
三股锦纶复丝绳索GB 10026—88(渔具材料)本标准等效采用国际标准ISO 1140—1975《三股聚酰胺复丝绳索》。
1 主题内容与适用范围本标准规定了由密度约1.14×103kg/m3的锦纶复丝组成的三股绳索的技术要求、试验方法、检验规则、标志、包装、运输、贮存。
本标准适用于线密度为11～1750ktex，即公称直径4～52mm的绳索。
2 引用标准GB 3938 渔具材料基本名词术语GB 4146 纺织名词术语（化纤部分）GB 8834 绳索有关物理和机械性能的测定3 制造3.1 绳索必须由新原料制成，绳索和绳股必须连续而无捻接。
3.2 经买卖双方同意，线密度大于或等于260ktex（公称直径20mm）的绳索可在绳股中夹有无捻连续的锦纶复丝组成的股芯。
3.3 除特别注明外，三股锦纶复丝绳索应由绳股以“Z”向捻合成，绳股本身为“S”捻。
3.4 绳索各绳股含绳纱数或绳纱及无捻连续的复丝数应相同。
3.5 绳索公称直径4～14mm时，捻系数不大于4.0；公称直径16～52mm时，捻系数不大于3.5。
特殊要求例外。
3.6 绳索应保证尺寸稳定性，在制造中应进行热处理。
在买方要求下，为了得到特殊的性能，绳索可以涂覆或浸渍处理。
涂覆或浸渍物质的特性，应由生产厂说明，所进行的处理不应降低绳索的断裂强力。
绳索涂覆或浸渍后所增加的质量应不大于未经处理前绳索线密度的5％（买卖双方协议者例外）。
4 技术要求三股锦纶复丝绳索的主要特性见下表。
注：①表中为绳索未经涂覆或浸渍处理前的特性值。
②1ktex等于1g/m。
5 试验方法试验方法按GB 8834的规定进行。
6 检验规则6.1 绳索检验项目为线密度、断裂强力。
6.2 产品的组批、抽样方法按GB 8834中附录C规定。
6.3 每个样品线密度测试三次，取其平均值；断裂强力测试三次，取实测值的最低值。
6.4 线密度和断裂强力两项技术特性应符合上表的规定，当有一项不符合时，应在该批产品中随机加倍取样复测，其结果按下列情况处理。
Spears产品说明书：PVC和CPVC热处理管道及相关配件的国际认可标准、规格、检验方法和实践
Pipe & Hangers TechnicalIndustry Standards & Test MethodsPage 83Suitable for Oil-Free air handling to 25 psi, not for distribution of compressed air or gasSpears ® Manufacturing Company See Spears ® Product Sourcebook for product offerings Spears ® products are manufactured in strict compliance with applicable industry standards and specifications to ensure strength, durability and safety. Although not inclusive, the following list of internationally recognized standards, specifications, test methods and practices relate to PVC and CPVC thermoplastic piping products and related components.ASTM STANDARD SPECIFICATIONSASTM D 1784Standard Specification for Rigid Poly (Vinyl Chloride) (PVC) Compounds and Chlorinated Poly (Vinyl Chloride) (CPVC) Compounds ASTM D 1785Standard Specification for Poly (Vinyl Chloride) (PVC) Plastic Pipe- Schedules 40- 80 and 120ASTM D 2241Standard Specification for Poly (Vinyl Chloride) (PVC) Pressure Rated Pipe (SDR Series)ASTM D 2464Standard Specification for Threaded Poly (Vinyl Chloride) (PVC) Plastic Pipe Fittings- Schedule 80ASTM D 2466Standard Specification for Poly (Vinyl Chloride) (PVC) Plastic Pipe Fittings- Schedule 40ASTM D 2467Standard Specification for Poly (Vinyl Chloride) (PVC) Plastic Pipe Fittings- Schedule 80ASTM D 2665Standard Specification for Poly (Vinyl Chloride) (PVC) Plastic Drain-Waste- and Vent Pipe and Fittings ASTM D 2672Standard Specification for Joints for IPS PVC Pipe Using Solvent Cement ASTM D 2846Standard Specification for Chlorinated Poly (Vinyl Chloride) (CPVC) Plastic Hot- and Cold-Water Distribution Systems ASTM D 3139Standard Specification for Joints for Plastic Pressure Pipes Using Flexible Elastomeric Seals ASTM D 3311Standard Specification for Drain, Waste, and Vent (DWV) Plastic Fittings Patterns ASTM F 437Standard Specification for Threaded Chlorinated Poly (Vinyl Chloride) (CPVC) Plastic Pipe Fittings- Schedule 80ASTM F 438Standard Specification for Socket-Type Chlorinated Poly (Vinyl Chloride) (CPVC) Plastic Pipe Fittings- Schedule 40ASTM F 439Standard Specification for Socket-Type Chlorinated Poly (Vinyl Chloride) (CPVC) Plastic Pipe Fittings- Schedule 80ASTM F 441Standard Specification for Chlorinated Poly (Vinyl Chloride) (CPVC) Plastic Pipe- Schedules 40 and 80ASTM F 442Standard Specification for Chlorinated Poly (Vinyl Chloride) (CPVC) Plastic Pipe (SDR-PR)ASTM F 477Standard Specification for Elastomeric Seals (Gaskets) for Joining Plastic Pipe ASTM F 493Standard Specification for Solvent Cements for Chlorinated Poly (Vinyl Chloride) (CPVC) Plastic Pipe and Fittings ASTM F 656Standard Specification for Primers for Use in Solvent Cement Joints of Poly (Vinyl Chloride) (PVC) Plastic Pipe and Fittings ASTM F 913Standard Specification for Thermoplastic Elastomeric Seals (Gaskets) for Joining Plastic Pipe ASTM F 1498Standard Specification for Taper Pipe Threads 60° for Thermoplastic Pipe and Fittings ASTM F 1866Standard Specification for Poly (Vinyl Chloride) (PVC) Plastic Schedule 40 Drainage and DWV Fabricated Fittings ASTM F 1970Standard Specification for Special Engineered Fittings, Appurtenances or Valves for use in Poly (Vinyl Chloride) (PVC) or Chlorinated Poly (Vinyl Chloride) (CPVC) Systems ASTM F 2618Standard Specification for Chlorinated Poly (Vinyl Chloride) (CPVC) Pipe and Fittings for Chemical Waste Drainage Systems ASTM STANDARD TEST METHODS ASTM D 1598Standard Test Method for Time-to-Failure of Plastic Pipe Under Constant Internal Pressure ASTM D 1599Standard Test Method for Resistance to Short-Time Hydraulic Pressure of Plastic Pipe & Fittings ASTM D 2122Standard Test Method for Determining Dimensions of Thermoplastic Pipe & Fittings ASTM D 2152Standard Test Method for Adequacy of Fusion by Acetone Immersion ASTM D 2412Standard Test Method for Determination of External Loading Characteristics of Plastic Pipe by Parallel-Plate Loading ASTM D 2444Standard Test Method for Determination of the Impact Resistance of Thermoplastic Pipe and Fittings by Means of a Tup (Falling Weight)ASTM D 2564Standard Specification for Solvent Cements for Poly (Vinyl Chloride) (PVC) Plastic Piping Systems ASTM D 2837Standard Test Method for Obtaining Hydrostatic Design Basis for Thermoplastic Pipe Materials ASTM F 610Standard Test Method for Evaluating the Quality of Molded Poly (Vinyl Chloride) (PVC) Plastic Pipe Fittings by the Heat Reversion Technique ASTM STANDARD PRACTICES ASTM D 2321Standard Practice for Underground Installation of Thermoplastic Pipe for Sewers and Other Gravity-Flow Applications ASTM D 2774Standard Practice for Underground Installation of Thermoplastic Pressure Piping ASTM D 2855Standard Practice for Making Solvent-Cemented Joints with Poly (Vinyl Chloride) (PVC) Pipe and Fittings ASTM F 402Standard Practice for Safe Handling of Solvent Cements- Primers- and Cleaners Used for Joining Thermoplastics Pipe and Fittings ASTM F 645Standard Guide for Selection- Design- and Installation of Thermoplastic Water Pressure Systems ASTM F 690Standard Practice for Underground Installation of Thermoplastic Pressure Piping Irrigation System ASTM F 1057Standard Practice for Evaluating the Quality of Extruded Poly (Vinyl Chloride) (PVC) Pipe by the Heat Reversion TechniqueCSA STANDARD CSA B137.3-99Rigid Polyvinyl Chloride (PVC) Pipe for Pressure ApplicationsFIRE PERFORMANCEULC-S102.2-M88Standard Method of Test for Surface Burning Characteristics of Flooring- Floor Covering- and Miscellaneous Materials and AssembliesUL 94Test for Flammability of Plastic Materials for Parts in Devices and AppliancesUL 723Test for Surface Burning Characteristics of Building MaterialsUL 1821Thermoplastic Sprinkler Pipe and Fittings for Fire Protection ServiceUL 1887Standard for Safety for Fire Test of Plastic Sprinkler Pipe for Flame and Smoke CharacteristicsFM 1635Plastic Pipe & Fittings for Automatic Sprinkler SystemsASTM D 635Standard Test Method for Rate of Burning and/or Extent and Time of Burning of Manufacturing in a Horizontal PositionASTM D 2863Standard Test Method for Measuring the Minimum Oxygen Concentration to Support Candle-Like Combustion of Manufacturing (Oxygen Index)ASTM E 84Standard Test Method for Surface Burning Characteristics of Building MaterialsASTM E 162Standard Test Method for Surface Flammability of Materials Using a Radiant Heat Energy Source TOXICOLOGYNSF ® Standard 14Manufacturing Piping System Components and Related Materials NSF ® Standard 61Drinking Water System Components - Health Effects United States FDA Code of Federal Regulations Title 21。
化学纤维概述
棉纺工艺梗概
纺织纤维的鉴别
一、 手感目测法：
可有效地鉴别天然纤维——棉、毛、丝、麻,对化学纤维则显得无 能为力除普通粘胶外. 具体方法：
1、手感及强度 棉、麻手感较硬,羊毛软,蚕丝、粘胶纤维、锦纶手感适中. 2、伸长度 拉伸时棉、麻伸长度较小；毛、醋酯伸长较大；蚕丝、粘胶纤维、 大部分合成纤维伸长度适中. 3、长度与整齐度 天然纤维的长度、整齐度较差、化学纤维的长度、整齐度较好. 4、重量 棉、麻、粘胶纤维比蚕丝重；锦纶、腈纶、丙纶比蚕丝轻；羊毛、 涤纶、维纶、醋酯纤维与蚕丝重量相近.
• 2．性质 • 1机械性质 • 断裂强度较高,伸长率大；初始模量高；弹性回复
性好；织物挺括,耐磨性较好,尺寸稳定. • 2吸湿染色差 • 3热学性质 • 熔点高,达255-265℃；耐热性和热稳定性好 • 4光学性质：耐光性好； • 5耐酸不耐强碱,不霉不蛀 • 6密度： 1.38 g/cm3
涤纶主要性能指标
热处理提高纤维的结构稳定性来自结晶度提高 内应力消除
涤纶的形态结构和超分子结构
一、涤纶纤维的形态结构 圆形的横截面和光滑、均匀而无条痕的圆柱体纵向;
二、涤纶纤维的超分子结构
产品
结晶度% 取向度 密度克/厘米2
初生丝 完全无定形
商品丝
40～60
全结晶理论 完全结晶
差 较高 较高
1.335～1.337 1.38
短纤维： 复合纤维
并列 皮芯
海岛
异型： 为了加强纤维间的磨擦,最好使其表面不规则,及具有捻旋、
鬈缩、波状等形状.
超细纤维：
纺制同一支数Count机纺纱,纤维愈细愈可增加纤维相互间络 合,纱强度也愈大,但太细,纤维强度太小,易发生损伤.
锂离子电池电解液的基础(终极版)
1 电解液的功能与要求 2 电解液的基本组成
2.1 溶剂 2.2 钮盐
3电解液的基本性质 3.1 离子传导特性 3.2 化学稳定性
4 电解液的电化学稳定性 4.1 在惰性电极上的稳定性 4.2 与碳负极的相容性 4.3 与正极的相容性 4.4 与集流体的相容性
5电解液中杂质的影响 5.1 杂质对电解液的影响 5.2 杂质对电池性能的影响
100
σ＝ A1 cfiPF6 + A2clι
Aifl0-1 Sdm8 mol3
A2/10-1 Sdm3.5/mol1.5
A3/10-1 $dm2/mol
1.297士0.059
-25.1土0.44
33.29士0.39
16
3:1离子传导特性 温度的影响
T / °C
电导率随温度的变化符合 Volgel-Tamma-Fulcher(VTF）方程：
14
3:1离子传导特性一一混合溶剂（1)
·通常一种剂难以同时满足高的介 电常数和低粘度的要求， 因此需要 采用混合溶剂体系： 一 种溶剂提供高的介电常数： 另 一种溶剂提供低的粘度。
·二兀溶剂体系的介电常数和粘度可 以按下式计算：
乌＝ (1 - x2） ε I + Xzζz 1/s ＝ηl (1-xv,,2
1 mol dm·3 LiPF6, 25°C.
KI mS cm-1
7.2 5.8 7.1 4.6 3.1
11.6 9.7 8.2 11.0 8.7 7.3
3:1离子传导特性一一混合溶剂（2)
混合溶剂体系的电导率随低粘度溶 剂含量的变化存在一个极大值， 这 个极大值一般出现在低粘度溶剂的
体积分数为50o/o附近。
专题2.1 等式性质与不等式性质【八大题型】(解析版)
+2
−+2 =
(+2)−(+2)
(+2)
2(−)
+2
= (+2) < 0N < +2N C §7¨
¦ DNğ > > 0N}− > 0, + > 0N
4
-.10)*+, ............................................................................................................................6
5
./0)*2 !&+,&3 ........................................................................................................7
1+
1+
1−
1−
= 1+ + 1+
2(1−)
= (1+)(1+) > 0NĠÔN > .
! 3-223-24 `ĥ·àIJ·ģ
!LėD&
1
1
ABğ < < 0N}3 + 3 > 2 + 2 BBğ < < 0N} <
+2
-
!&'(:;<=> ..........................................................................................................14
国贸检定Let'sGo!辅导检定经验分享
如何有效『精讀』學科內容
•國貿丙檢學科章節 v.s. 國貿實務課綱章節
丙檢學科章節/題數
課綱章節
1 商業道德、經貿常識(27) CH 1
2 貿易概論、進出口流程(48) CH 1. 3
3 簽審、檢驗、報關(91) 4 基本交易條件(81)
CH 8. 10. 11. 12*(17) . 19*(35) CH 4
國貿業務技能證照
台灣
大陸
➢勞委會：國貿業 ➢商務部：外銷員、國
務技術士乙、丙級 際商務師
➢進出口公會： ➢上海勞動局：國際貿
國貿大➢各地培訓中心：跟單員
資料來源:萬能科技大學
大陸外貿六大證照
大陸外貿六大證照：單證員、外銷員、報關 員、報檢員、貨代、國際商務師
2. ABOUT
+-10%
Percentage Credit Amount Tolerance : 03 / 05
SHIPMENT ON OR ABOUT +-5 DAYS BEFORE ( ETD )
3.教師適時地補充課本沒有的學科內容 4.了解的記憶 取代 不懂的死背 5.每次測驗，重【質】不重量 6.誘之以利，增加自信心 7.利用寒暑假熟記學過的學科內容
国贸检定Let'sGo！辅导检定经验分享
考照的動機-誘之以利
1.專案掛帥，證照引路的年代 2.能力證照化，職場競爭的重要利器
未來貿易人才的關鍵能力 語言力 證照力 溝通力 行銷力
國貿相關技能證照類別
❖ 業務操作：貿易、船務 ❖ 報關檢驗：關務、保稅 ❖ 貿易金融：外匯匯兌 ❖ 貨代物流：海空運、國際物流
買方樣品( ) 相對樣品( )
B.Counter Sample C.Buyer’s Ssample
优可丝细度指标
优可丝细度指标
优可丝（Yarn Count）是纺织工业中用来表示纱线细度的一个指标。
细度通常用“支数”（Count）来表示。
支数的定义是单位质量纱线的长度，通常用长度单位除以质量单位，例如公制单位下的“克/公里”或英制单位下的“磅/英里”。
在优可丝（Yarn Count）中，有两种主要的表示方法，即直接法和间接法。
1. 直接法：直接法是指通过直接测量纱线的质量和长度，然后计算支数。
例如，如果你知道一根纱线的长度是1000米，质量是100克，那么支数就是\( \frac{1000}{100} = 10 \)，即这根纱线的支数为10支。
2. 间接法：间接法是指通过其他特定的纱线参数计算支数。
例如，如果你知道每单位长度的纱线质量（比如每克纱线的长度），那么可以使用这个参数来计算支数。
这种方法更常用于纺纱工业中。
总的来说，优可丝细度指标是评估纱线细度的一种方法，对于纺织品的质量和用途有着重要的影响。
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新标准大学英语第三册第二单100% 元综合教程单元检测When was the last time you were in _______.with your childhood friends?A. contextB. contactC. controlD. content2. Like a boat at sea, his mind started to_______when he wasn't interested.A. floatB. soarC. sinkD. drift3. Mrs Jones didn't trust Jack, so she was very_______ to let him cut her grass.A. reluctantB. reluctantlyC. enthusiasticD. enthusiasticallyMy house seems to be in a _______ state of 4.—something is always broken! disrepairA. perpetuallyB. perpetualC. perpetuityD. perpetuate5. The problem needs to be looked at from ahistorical _______ .A. prospectiveB. directiveC. perspectiveD. executive6. Dr. Carter has written _______ about the brainand its influence on our emotions.A. extensivelyB. intensivelyC. extensiveD. intensiveThe accident of last week _______ a review of 7.school safety policy.A. promptedB. promptC. promptingD. prompts8. I am easily _______ by ice cream, so it'sprobably the best if I don't look at the dessertmenu.A. temptB. temptsC. temptingD. tempted9. Wouldn't it be _______ if we didn't need toworry about money?A. predictableB. marvellousC. astonishingD. depressingesearchers claim that there is a _______ link R 10.between caffeine and headaches.A. definiteB. definitelyC. definitionD. definedt's incredible to see how newborn babies are11. Icompletely _______ on other people foreverything.A. dependingB. dependenceC. dependentD. dependentshe criminal devised an _______ plan toT12.escape from prison.A. intrinsicB. intricateC. intrepidD. intrusivehe court brought a _______ against the13. T escaped prisoner.A. persecutionB. persecuteC. prosecutionD. prosecutehank you for the offer to stay for dinner, but14. T we don't want to _______.A. poseB. composeC. proposeD. imposeedro's friends organized a friendly_______P15.to help him deal with his alcohol abuse.A. contraventionB. inventionC. interventionD. preventiont's impossible to not be impressed by the Taj 16. I Mahal and _______ at its beauty.A. respectB. flauntC. marvelD. admireWe should hire an _______ reviewer who isn'tbiased one way or the other.A. internalB. outdoorC. indoorD. external'm so excited for the new movie that waitingI18.all year for it has been like _______.A. torturesB. torturingC. tortuousD. tortureylan likes to write _______ during his free 19. Dtime on the weekend.A. poetryB. poetC. poeticD. poemhe waterfall provided a _______ source of 20. T soothing background noise.A. continualB. continueC. continuingD. continuitySection B: Complete each sentence with a suitable word.and broke my toe. 21. Last weekend, I fell overCorrect answer Your answer overoverhis own once his boss22. Phil will come into recognizes how valuable he is.Your answerCorrect answerinto intoa23. Kevin has been riding a motorcycle from very young age.Correct answer Your answer from from24. Among the group members, there was aan afternoon ofstrong desire for shopping.Your answer Correct answer for forto sleep while watchingI usually drift 25.off television.Your answer Correct answeroff offThe teacher told me for talking in class 26. off again today.Correct answer Your answeroff off27. Do you believe free will? in Correct answer Your answerin in28. Julie received an award in appreciation her service to the community. offYour answer Correct answerof ofa child—you won't 29. Don't try to reason with get very far.Your answer Correct answerwith with30. Once again, Greg was left of theout decision.Your answer Correct answerout outPart II: Banked ClozeQuestions 31 to 40 are based on the following passage.When I was a child, my best friend Joseph and Iwould play a game called Super Secret Spy.Sometimes I would play the spy and Joseph, and sometimes we(31)would play the villain would reverse the roles. Make-believe games likethis were my favourite, and I remember that manyspent outside,summer days were(32largely playing Super Secret Spy.Every time we played, the story had to be different. We played so much that, needless to.(33)say, some of the stories gotquite bizarre Eventually, Super Secret Spy was like a sciencefiction movie; the stories took place on otherplanets and one of us was an alien. Sometimes,we would wear old Halloween masks so the(34 to an alien was remarkable! resemblance I remember one day in particular. Joseph was,(35)the alien and he captured me on a barren empty planet (my backyard). He threw me inalien prison (behind a big tree) andwith mischievous delight. At first, I (36)giggled. Then I pulledfelt all alone and (37)helpless myself together and remembered that I was theSuper Secret Spy!I thought of my escape plan. When Alien Joseph came to check on me in the alien prison, Iaround quickly and grabbed his(38)whirled of laser fire, I(39)alien laser gun. In a blaze ran past my captor and escaped the alien prison! I was free! Super Secret Spy had won again!Just then, Joseph and I both realized that it was late afternoon, the sun was setting, and(40 was upon us. We were bothtwilight hungry, so we were incredibly happy when mymother called us inside for dinner. Even SuperSecret Spies and aliens need to eat!Your answer Correct answerillain v 31) ( villain(32) largely largelybizarre (33) bizarreresemblance resemblance (34)barren (35) barrengiggled iggled 36) g (helpless 37) ( helplesswhirled (38) hirled wblaze b laze 39) (twilight (40) t wilightPart III: Reading Comprehension Questions 41 to 45 are based on the following passage.When we're young, we can't wait to grow up andget on with life. When we're adults, we long for thecarefree days of our youth when we could play allday without worry. This is one of the greatest ironiesof life. Indeed, he grass is always greener on theother side. It is a harsh truth that humans alwayswant what they can't have. It's our nature.That's why it's good practice to instill in our children a healthy respect for childhood. Too manyadults seem to be in a hurry for children togrow up.We always ask them, What do you want to be whenyou grow up? We repeatedly tell them, You cando/have that when you're older. We continuallyencourage them, When you grow up, the world willbe yours and you can make your dreams come true.It's no wonder, then, that children seem to be in sucha rush to grow up, get older, and demand everythingthat we tell them is coming to them. Children should be free to play the day away. Weshould encourage them to use their imagination,create entire worlds in a cardboard box, and exploretheir backyard as if they were exploring an undiscovered country. You cannot put a price on anactive and fertile imagination, nor can you overestimate the value of an inquisitive mind, arespect for the environment, and an urge to questionwhy everything is as it is. These traits arealldeveloped and nurtured when we're children and,without them, we would not be able to function asadults in the modern world. Research has shown that children are happiestand healthiest when they have the freedom to actlike children. This may seem obvious, but it's oftenforgotten as parents push their children to studyharder, practice longer, and essentially act likeadults. It's important to remember that children areconstantly learning. Therefore, they are alsolearning as they're playing. Exploring nature fostersa respect for the environment that may lead childrento become biologists or naturalists. Creating withpaint and crayons instills a love of art that mighthelp develop young artists or musicians. Playingmake-believe stimulates the imagination in a waythat writers, filmmakers, and actors find most useful.Building with blocks helps the mind understand howthings are constructed and might lead to an interestin engineering.It's true that play helps develop skills that will beused later in life. However, this should not be thesole purpose of play. Children should play becausethey're children. It's how they stay happy, healthy,and young. Why should we push them to besomething they're not?Which of the following sentences is the mainidea of this passage?A. It is a harsh truth that humans alwayswant what they can't have.B. Too many adults seem to be in a hurryfor children to grow up.C. Children should be free to play theday away.D. It's true that play helps develop skills that will be used later in life.Which of the following would the writer of thispassage likely NOT agree with?A. Adults should understand that children learn while they play.B. It is important for children to play andact young.C. Many games help children appreciatepotential careers.D. Children should concentrate on their schoolwork above everything else.The grass is always greener on the other sidemeans _____.A. other situations always seem better than the ones we are inB. people always lack confidence in themselvesC. people prefer to live in a less barren landD. people always want their children to grow up fastThis passage is best described as _____.A. a first-person memoirB. a dramatic dialogueC. a persuasive essayD. an entertaining storyWhat does the writer mean by You cannot puta price on an active and fertile imagination?A. The ability to think creatively is worthless.B. The ability to think creatively is invaluable.C. The ability to think creatively helps children develop.D. The ability to think creatively is anatural part of childhood.。