2019年CUPT题目中英文版
中国大学生物理学术竞赛
历届冠军
历届冠军(11张) 注:年份斜体表示夺冠时为东道主。
组织构成
1
顾问委员会
2
指导委员会
3
全国组委会
4
地方组委会
5
裁判委员会
杨国桢(中国科学院院士,中国科学院物理研究所) 葛墨林(中国科学院院士,南开大学陈省身数学研究所) 赵光达(中国科学院院士,北京大学理论物理研究所) 朱邦芬(中国科学院院士,清华大学高等研究院) 邢定钰(中国科学院院士,南京大学物理学院) 张杰 (中国科学院院士,中国科学院大学物理科学学院)
裁判
裁判组成 裁判主席
裁判员 投诉及处理
1、竞赛裁判由各高校教师担任,原则上每个参赛高校最多可派 3名裁判,同时竞赛组委会可以邀请非参赛 高校教师作为独立裁判。
2、每场竞赛由 5-7名裁判组成的裁判组评判,裁判由教师担任,并回避该校队伍参赛的竞赛,同时每个裁 判尽量避免多次裁判同一支队伍。
为了保证竞赛公平公正地进行,组委会制定了如下规则。每位裁判小组的主席都要尽可能严格执行本规则。 竞赛前: 1、主席自我介绍,然后让评委做自我介绍,最后让参赛队伍的队长介绍他们的队伍成员。 2、提醒所有的参赛队员遵守基本的礼节和正确的科学讨论原则。 竞赛中: 1、在每个比赛阶段开始时,介绍每个参赛队的角色。 2、题目确定后,各方的报告人将姓名写在黑板上,或者在报告的PPT中显示出报告人姓名。 3、比赛过程中,只允许各队在本队队员陈述的阶段进行录像和录音。 4、由裁判主席宣布某一环节结束。准备环节结束后,下一环节的计时立即开始。在陈述阶段结束后,裁判主 席可以允许让发言者做最后的陈述,但时长不超过15秒。 5、在报告的准备环节,如果出现意外的技术问题,裁判主席可以决定延长这一环节的时间。
2019年全国普通高等学校招生统一考试英语试卷II(英汉对照版)
2019年全国普通高等学校招生统一考试英语II卷(英汉对照版)阅读理解AMy Favourite Books我最喜爱的书作家乔 阿诗玛:美国时尚杂志《 》的撰稿人。
生活方式系列书籍《 》合著作家。
这儿有她喜欢的几本好书推荐给大家。
, , 《玛蒂尔达》罗尔德 达尔受罗尔德 达尔笔下神话故事的影响我曾经撰写过一篇论文,我在论文中写到:他的写作让我对他奇怪而有趣的文字有了新的认识。
文中描写玛蒂尔达与她残忍的父母的斗争,还有跟颐指气使的女校长川敕布尔( )小姐的较量,无不可笑而又可怕,不过有一点,他们各个都是野心勃勃。
《天黑以后》村上春树这本书写的是两个姐妹,浅井爱丽,模特,一睡不醒,再就是浅井玛丽,一个年轻的学生。
玛丽想方设法要叫醒姐姐,就在几个小时内她的生活也同时发生了变化,她发现了众多形形色色的 夜猫子 ,就是这些人知道唤醒姐姐的秘密。
《消失的爱人》吉莉安 弗林我有点不爱跟风,凡是这个世界上都喜欢的事物我就有点抵触,不过这部恐怖小说写的太精彩了。
故事一开始就扣人心弦,你不知道该信尼克,还是艾米。
这是一部真正的侦探小说。
当一切都水落石出,跟你的设想大相径庭时,那种感觉有一种说不出的享受。
《末日逼近》史蒂芬 金这是一部优秀的奇幻小说,作者是世界上最好的小说家之一。
全球爆发一场严重的流感,致 人因此丧命,幸存下来的虔诚军与邪恶势力之间展开的一场恶战便拉开序幕。
兰德尔 弗拉格是史上最恐怖的角色之一。
“ , ”“实在没办法再找我去,要是除我之外实在没人去做志愿服务,我才会去的。
”这是一位家长的原话,是我为自己的少儿长柄曲棍球俱乐部征集志愿者发布消息后她做出的回复。
我想可能是有些工作安排要求标准太高了吧,要么就是对此有些世俗的顾虑,何必对一种鲜为人知的运动主动请缨。
不过得找点儿料能打动她才是。
所以我要再努把力,从走心上多下功夫。
我提到那位有四个孩子还在主持节目的单亲家长,我还谈到这样一位教练父亲,连自己的孩子都没有在自己指导的团队……这时,这位很不情愿的家长才开的口 “好吧。
CUPT题目中英文版
年CUPT题目中英文版————————————————————————————————作者:————————————————————————————————日期:1、Invent YourselfConstruct a simple seismograph that amplifies a local disturbance by mechanical, optical or electrical methods. Determine the typical response curve of your device and investigate the parameters of the damping constant. What is the maximum amplification that you can achieve?1、自主发明建造一个可以通过力学、光学或电学方法放大局部扰动的简单地震仪。
确定你装置的标准响应曲线并且研究阻尼常数的参量。
你能达到的最大放大率是多少?2. Colour of PowdersIf a coloured material is ground to a powder, in some cases the resulting powder may have a different colour to that of the original material. Investigate how the degree of grinding affects the apparent colour of the powder.2、粉末的颜色如果一个有色的材料被研磨成粉末,在某些情况下被研磨成的粉末将会呈现和原有材料不同的颜色。
探究研磨程度是如何影响粉末的表面颜色的。
3. Dancing CoinTake a strongly cooled bottle and put a coin on its neck. Over time you will hear a noise and see movements of the coin. Explain this phenomenon and investigate how the relevant parameters affect the dance.3、舞蹈的硬币取一个冷却程度很大的瓶子并且将一枚硬币置于瓶颈处。
CUPT题目翻译
CUPT题⽬翻译CUPT题⽬1. Gaussian cannon ⾼斯炮A sequence of identical steel balls includes a strong magnet and lies in nonmagnetic channel. Another steel ball is rolled towards them and collides with the end ball .the ball at the opposite end of the sequence is ejected at a surprisingly high velocity .optimize the magnet’s position for the greatest effect.⼀列相同的钢球含有⼀个强磁铁并置于⽆磁通道中。
另有⼀个钢球向他们滚动并碰撞序列末尾的球。
在另⼀端末尾的球被迫以极⾼的速度离开。
请优化磁铁的位置使碰撞产⽣最佳效果。
2. Cutting the air切割空⽓When a piece of thread (e.g. nylon) is whirled around with a small mass attached to its free end, a distinct noise is emitted.study the origin of this noise and the relevant parameters.⼀段线(例如尼龙)的⾃由端系上⼀个重物,当线被旋转时会形成明显的噪声。
研究这种噪声的产⽣原因及相关参数。
3. String of beads串珠A long string of beads is released from a breaker by pulling a sufficiently long part of the chain over the edge of the breaker. Due to gravity the speed of the string increases. At a certain moment the sting no longer touches the edge of the breaker (see picture). Investigate andexplain the phenomenon.⼀长串珠⼦从烧杯⾥释放,具体释放⽅式是将⾜够长的珠链拉出烧杯的边缘,这样由于重⼒作⽤串珠的速度增⼤。
2019年普通高等学校统一招生考试英语全国卷1及答案Word版word精品文档17页
绝密★启用前2019年普通高等学校招生全国统一考试英语本试卷分第一卷(选择题)和第二卷(非选择题)两部分。
第一卷1至l4页。
第二卷15至16页。
考试结束后,将本试卷和答题卡一并交回。
第一卷注意事项:1. 答题前.考生在答题卡上务必用直径0.5毫米黑色墨水签字笔将自己的姓名、准考证号填写清楚,并贴好条形码。
请认真核准条形码上的准考证号、姓名租科目。
2. 每小题选出答案后,用2B铅笔把答题卡上对应题目的答案标号涂黑,如需改动,用橡皮擦干净后,再选涂其他答案标号,在试题卷上作答无效.........。
第一部分听力(共两节,满分30分)做题时,先将答案标在试卷上。
录音内容结束后,你将有两分钟的时间将试卷上的答案转涂到答题卡上。
第一节(共5小题;每小题l 5分,满分7.5分)听下面5段对话。
每段对话后有一个小题,从题中所给的A、B、c三个选项中选出最佳选项,并标在试卷的相应位置。
听完每段对话后,你都有l0秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
例:How much is the shirt?A£19.15 8£9.15 C£9.18答案是B。
1 What will Dorothy do on the weekend?A Go out with her friendB Work on l her paperC Make some plans2. What was the normal price of the T-shirt?A.$15B.$30.C.$50.3 What has the woman decided to do On Sunday afternoon?A To attend a weddingB To visit an exhibitionC To meet a friend4 When does the bank close on Sa turday?A At l:00 pmB At 3:00 pmC At 4:00 pm5 Where are the speakers?A In a storeB In a classroomC At a hotel第二节(共15小题;每小题1 5分,满分22 .5分)听下面5段对话或独自。
2019 高考英语 北京卷 试题+答案 word版
2019年普通高等学校招生全国统一考试(北京卷)英语第一部分: 知识运用(共两节, 45分)第一节语法填空(共10小题;每小题1.5分, 共15分)阅读下列短文,根据短文内容填空。
在未给提示词的空白处仅填写1个适当的单词,在给出提示词的空白处用括号内所给词的正确形式填空。
AOn the first day of my first grade, I stood by the door with butterflies in my stomach. I (1) (voice) my biggest concern to my mother, “How will I make friends?” She handed me advice, “Be yourself.” For the past 20 years, I have lived by these words. Soon I will graduate and become part of the real world. Nervously (2) (face) challenges, I know I will whisper to (3) (I) the two simple words “By yourself ”.BEarth Day, (4) (mark) on 22 April, is an annual event aiming to raise public awareness about environmental protection. First celebrated (5) 1970, the Day now includes events in more than 190 countries and regions (地区). No matter what you like to do, there is a way to get involved in various (6) (activity) on Earth Day. You can plant a tree, make a meal with locally grown vegetables, or save power — the possibilities are endless.CDoes the name of the college you attend really matter? Research on the question (7) ________ (suggest) that, for most students, it doesn’t. What students do at college seems to matter much more than (8) they go. The students benefitting most from college are those (9) ________ are totally engaged (参与) in academic life, taking full advantage of the college’s chances and resources (资源). Students should have a proper attitude towards college before thinking about which college to attend, and it’s never too early to make necessary pr eparations for a healthy and (10) _________ (meaning) college experience.第二节完形填空(共20小题;每小题1.5分,共30分)阅读下面短文,掌握其大意,从每题所给的A、B、C、D四个选项中,选出最佳选项,并在答题卡上将该项涂黑。
cupt题目
2.Plume of smokeIf a burning candle is covered by a transparent glass, the flame extinguishes and a steady upward stream of smoke is produced. Investigate the plume of smoke at various magnifications.2.烟羽如果一个燃烧的蜡烛用透明的玻璃罩住,火焰将熄灭并产生一个平稳的上升流烟。
探讨在不同的放大倍率下的烟羽。
3.artificial muscleAttach a polymer fishing line to an electric drill and apply tension to the line. As it twists, the fiber will form tight coils to permanently fix that spring-like shape. When you apply heat again, tho coil will contract. Investigate this “artificial muscle.”3.人造肌肉附加一个聚合物钓鱼线电钻和应用张力线。
曲折,纤维将形成紧线圈永久修复如春的形状。
当你再次加热,线圈将会收缩。
研究这种“人造肌肉”。
4.liquid film motorForm a soap film on flat frame. Put the film in an electric field parallel to the film surface and pass an electric current through the film. The film rotates in its plane. Investigate and explain the phenomenon.4.液膜电机平面框架上形成一个soap膜。
2019年全国大学生英语竞赛c类决赛试题
2019年全国大学生英语竞赛c类决赛试题2019年全国大学生英语竞赛C类决赛试题涵盖了听力、阅读、写作、翻译和综合知识等多个部分,旨在全面考察参赛学生的英语应用能力。
以下是试题的大致内容:听力部分1. 短对话理解:包含10个短对话,每个对话后有一个问题,要求学生根据对话内容选择正确答案。
2. 长对话理解:包括2个长对话,每个对话后有3-4个问题,学生需根据对话内容回答相关问题。
3. 短文理解:播放2篇短文,每篇后有3-4个问题,测试学生对短文主旨大意和细节信息的理解。
阅读部分1. 快速阅读:提供1篇文章,学生需要在限定时间内快速阅读并回答相关问题。
2. 阅读理解:包含3篇文章,每篇文章后有若干问题,要求学生仔细阅读并理解文章内容,然后选择或回答相关问题。
写作部分1. 应用文写作:如写一封邀请信、建议信或投诉信等,要求学生根据给定情景写出合适的应用文。
2. 议论文写作:提供话题,要求学生写出自己的观点,并给出支持观点的理由和例证。
翻译部分1. 英译汉:提供一段英文材料,要求学生翻译成中文。
2. 汉译英:提供一段中文材料,要求学生翻译成英文。
综合知识部分1. 词汇和语法:包含若干选择题,测试学生对英语词汇和语法知识的掌握。
2. 完形填空:提供一篇文章,其中部分词汇被删除,学生需要从选项中选择最合适的词汇填入空白处。
附加题1. 智力题:可能包括逻辑推理、数学问题等,旨在测试学生的逻辑思维和解决问题的能力。
请注意,以上内容仅为示例,具体的试题内容和题型可能会有所不同。
实际的试题应以官方发布的为准。
CUPT题目中文翻译
以下中文翻译来源于网络,仅供参考,请同学们自己准确理解原题:1.自己发明请建造一个装置——能为从2.5米固定高度坠向坚硬地面的生鸡蛋提供安全着陆,装置必须与鸡蛋一起坠落,你能实现的装置的最小尺寸是多少?2.气膜汽笛一个简单的汽笛可以这样制造:用一根穿过一只小型容器(或杯子)底部的管子(如图)拉伸位于容器(或杯子)开口处的气膜。
经由在容器侧壁处的小孔,鼓风可以产生一个声音。
探讨相关参数如何影响声音。
3.单透镜望远镜一架望远镜可只用一个透镜制作,如果小光圈被用于替代目镜,那么透镜参数和孔会如何影响图像(如放大率、清晰度和亮度)?4.磁丘少量置于非均匀磁场中的磁性流体会形成山丘状结构,探讨这些结构的属性如何依赖于相关参数。
5.莱氏星星在莱氏效应中,置于热表面的水滴可存在几分钟。
在某些情况下,水滴会发展为振荡的星形状态。
引入不同的振荡模式并探讨它们。
6.快链条一根链条由若干相比于水平有一定角度的木棍组成,且由两根线连接(见图),垂直悬挂,然后释放。
相比于自由落体,当掉至水平地面时,链条掉落更快。
解释此现象并探讨相关参数如何影响运动。
7.螺旋水波螺旋波及其他类型的波可能出现于薄层液膜流过旋转平台,探讨这些波的类型。
8.密度可视化纹影摄影术通常用于使气体中的密度变化可视化。
安装一套纹影装备并探讨它在解决密度差异中能做多好。
9.管中球现有一根充满液体并含有一枚小球的密封透明管,此管倾斜放置且下端与马达相连,如此管沿锥形面运动。
探讨球在相关参数作用下的运动。
10.分离玻璃在两片薄玻璃之间放置一层薄薄的水,然后试着把它们分开。
探讨影响所需力的参数。
11.毛发湿度计一只简单的湿度计可仅用人的毛发制作。
探讨相关参数对其准确度和响应时间的作用。
12.扭转陀螺将轮轴固定于具有一定扭转阻力的竖直线上(见图),扭转绳子,旋转轮子并释放它,探讨此系统的动力。
13.共鸣的玻璃酒杯一部分盛满液体,暴露于扬声器的声音下会产生共振。
探讨此现象如何取决于各种参数。
2019年普通高等学校招生全国统一考试英语试题(新课标1卷,含解析)
2019年普通高等学校招生全国统一考试英语试题〔新课标1卷,含解析注意事项:1. 本试卷分第Ⅰ卷〔选择题和第Ⅱ卷〔非选择题两部分。
第Ⅰ卷1页至10页,第Ⅱ卷11页至13页。
2. 答题前,考生务必将自己的姓名,准考证号填写在本试卷相应的位置。
3. 全部答案在答题卡上完成,搭载本试卷上无效。
4. 第Ⅰ卷听力部分满分30分,不计入总分,考试成绩录取时提供给高校作参考。
5. 考试结束后,将本试卷和答题卡一并交回。
第Ⅰ卷第一部分听力〔共两节,满分30分做题时,现将答案标在试卷上,录音内容结束后,你将有两分钟的时间将试卷上的答案转涂到答题卡上。
第一节〔共5小题;每小题1.5分,满分7.5分〔略听下面5段对话,每段对话后有一个小题。
从题中所给的A,B,C三个选项中选出最佳选项,并标在试卷的相应位置。
听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
例: How much is the shirt?A.£ 19.15B.£ 9.18C.£ 9.15答案是C。
第二部分阅读理解〔共两节,满分60分第一节〔共15小题;每小题3分,满分45分阅读下列短文,从每题所给的四个选项〔A、B、C、和D中,选出最佳选项,并在答题卡上将该项涂黑。
AMonthly Talks at LondonCanalMuseumOur monthly talks start at 19:30 on the first Thursday of each month except August. Admission is at normal charges and you don’t need to book. They end around 21:00.November 7thThe Canal Pioneers, by Chris Lewis. James Brindley is recognized as one of the leading early canal engineers. He was also a major player in training others in the art of nanal planning and building. Chris Lewis will explain how Brindley made such a positive contribution to the education of that group of early "civil enginerrs".December 5thIce for the Metropolis, by Malcolm Tucker. Well before the arrival of freezers, there was a demand for ice for food preservation and catering, Malcolm will explain the history of importing natural ice and the technology of building ice wells, and how London’s ice trade grew.February 6thAn Update on the Cotsword Canals, by Liz Payne. The SmoudwaterCanal is moving towards reopenling. The Thames and SevernCanal will take a little longer. We will have a report on the present state ofplay.March 6thEyots and Aits-ThamesIslands, by Miranda Vickers. The Thames had many islands. Miranda has undertaken a review of all of them. She will tell us about those of greatest interest.Online bookings:More into:LondonCanalMuseum12-13 New Wharf Road, London NI 9RTTel:020 ********21.When is the talk on James Brindley?A. February 6th.B. March 6th.C. November 7th.D. December 5th.22. What is the topic of the talk in February?A. The Canal Pioneers.B. Ice for the MetropolisC. Eyots and Aits-ThamesIslandsD. An Update on the Cotsword Canals23. Who will give the talk on the islands in the Thames.A. Miranda VickersB. Malcolm TuckerC. Chris LewisD. Liz PayneBThe freezing Northeast hasn’t been a terribly fun place to spend time this winter, so when the chance came for a weekend to Sarasota, Florida, my bags were packed before you could say "sunshine".I left for the land of warmth and vitamin C<维生素C>, thinking of beaches and orange trees. When we touched down to blue skies and warm air, I sent up a small prayer of gratefulness. Swimming pools, wine tasting, and pink sunsets<at normal evening hours, not 4 in the afternoon> filled the weekend, but the best part- particularly to my taste, dulled by months of cold- weather root vegetables- was a 7 a.m. adventure to the Sarasota farmers’ market that proved to be more than worth the early wake-up call.The market, which was founded in 1979, sets up its tents every Saturday from 7:00 am to 1 p.m, rain or shine, along North Lemon and State streets. Baskets of perfect red strawberries, the red-painted sides of the Java Dawg coffee truck; and most of all, the tomatoes: amazing, large, soft and round red tomatoes.Disappointed by many a broken, vine-ripened<蔓上成熟的> promise, I’ve refused to buy winter tomatoes for years. N o matter how attractive they look in the store, once I get them home they’re unfailingly dry, hard, and tasteless. But I homed in, with uncertainty, on one particular table at the Brown’s Grove Farm’s stand, full of fresh and soft tomatoes the size of my f ist. These were the real deal- and at that moment, I realized that the best part of Sarasota in winter was going to be eating things that back home in New York I wouldn’t be experiencing again for months.Delighted as I was by the tomatoes in sight, my ha ppiness deepened when I learned that Brown’s Grove Farm is one of the suppliers for Jack Dusty, a newly opened restaurant at the Sarasota Ritz Carlton, where- luckily for me- I was planning to have dinner that very night. Without even seeing the menu, I kn ew I’d be ordering every tomato on it.24. What did the author think of her winter life in New York?A. Exciting.B. Boring.C. Relaxing.D. Annoying.25. What made the author’s getting up late early worthwhile?A. Having a swim.B. Breathing in fresh air.C. Walking in the morning sun.D. Visiting a local farmer’s market.26. What can we learn about tomatoes sold in New York in winter?A. They are soft.B. They look nice.C. They taste great.D. They are juicy.27. What was the author going to that evening?A. Go to a farm.B. Check into a hotel.C. Eat in a restaurant.D. Buy fresh vegatables.CSalvador Dali <1904-1989> was one of the most popular of modern artists. The Pompidou Centre in Paris is showing its respect and admiration for the artist and his powerful personality with an exhibition bringing together over 200 paintings, sculptures, drawings and more. Among the works and masterworks on exhibition the visitor will find the best pieces, most importantly The Persistence of Memory. There is a lso L’Enigme sans Fin from 1938, works on paper, objects, and projects for stage and screen and selected parts from television programmes reflecting the artist’s showman qualities.The visitor will enter the World of Dali through an egg and is met with the beginning, the world of birth. The exhibition follows a path of time and subject with the visitor exiting through the brain.The exhibition shows how Dali draws the viewer between two infinities <无限>. "From the infinitysmall to the infinity large, contraction and expansion coming in and out of focus: amazing Flemish accuracy and the showy Baroque of old painting that he used in his museum-theatre in Figueras," explains the Pompidou Centre.The fine selection of the major works was done in close collaboration <合作>with the Museo Nacional Reina Sofia in Madrid, Spain, and with contributions from other institutions like the Salvador Dali Museum in St. Petersburg.28. Which of the following best describe Dali according to Paragraph 1?A. Optimistic.B. ProductiveC. Generous.D. Traditional.29. What is Dali’s The Persistence of Memory considered to be?A. One of his masterworks.B. A successful screen adaptation.C. An artistic creation for the stage.D. One of the beat TV programmes.30. How are the exhibits arranged at the World of Dali?A. By popularity.B. By importance.C. By size and shape.D. By time and subject.31. What does the word "contributions" in the last paragraph refer to?A. Artworks.B. Projects.C. Donations.D. Documents.DConflict is on the menu tonight at the café La Chope. This evening, as on every Thursday night, psychologist Maud Lehanne is leading two of France’s favorite pastimes, coffee drinking and the "talking cure". Here they are l earning to get in touch with their true feelings. It isn’t always easy. They customers-some thirty Parisians who pay just under $2 <plus drinks> per session-care quick to intellectualize <高谈阔论>,slow to open up and connect. "You are forbidden to say ‘one feels,’ or ‘people think’,"Lehane told them. "Say ‘I think,’ ‘Think me’."A café society where no intellectualizing is allowed? It couldn’t seem more un-French. But Lehanne’s psychology café is about more than knowing oneself: It’s trying to help the city’s troubled neighborhood cafes. Over the years, Parisian cafes have fallen victim to changes in the French lifestyle-longer working hours, a fast food boom and a younger generation’s desire to spend more time at home. Dozens of new theme cafes appear to change the situation. Cafes focused around psychology, history, and engineering are catching on, filling tables well into the evening.32.What are people encouraged to do at the cafe La Chope?A. Learn a new subjectB. Keep in touch with friends.C. Show off their knowledge.D. Express their true feelings.33. How are cafes affected by French lifestyle changes?A. They are less frequently visited.B. They stay open for longer hours.C. They have bigger night crowds.D. They start to serve fast food.34. What are theme cafes expected to do?A. Create more jobs.B. Supply better drinks.C. Save the cafe business.D. Serve the neighborhood.35. Why are psychology cafes becoming popular in Paris?A. They bring people true friendship.B. They give people spiritual support.C. They help people realize their dreams.D. They offer a platform for business links.D篇.文章大意:文章主要讲述了精神咖啡馆在法国越来越受欢迎。
2019年普通高等学校招生全国统一考试 英语 (全国 III 卷)word 版
2019年普通高等学校招生全国统一考试(全国III 卷)英语第二部分阅读理解(共两节,满分40分 A OPENINGS AND PREVIEWSAnimals Out of PaperYolo!Productions and the Great Griffon present the play by Rajiv Joseph,in which an origami(折纸术)artist invites a teenage talent and his teacher into her studio. Merri Milwe directs. In previews. Opens Feb.12.(West Park Presbyterian Church,165 W.86th St.212-868-4444.)The AudienceHelen Mirren stars in the play by Peter Morgan,about Queen Elizabeth II of the UK and her private meetings with twelve Prime Ministers in the course of sixty years. Stephen Daldry directs. Also starring Dylan Baker and Judith Ivey. Previews begin Feb.14.(Schoenfeld,236 W.45th St.212-239-6200.)HamiltonLin-Manuel Miranda wrote this musical about Alexander Hamilton,in which the birth of America is presented as an immigrant story. Thomas Kail directs. In previews. Opens Feb.17.(Public,425 Lafayette St.212-967-7555.)On the Twentieth CenturyKristin Chenoweth and Peter Gallagher star in the musical comedy by Betty Comden and Adolph Green,about a Broadway producer who tries to win a movie star's love during a cross-country train journey. Scott Ellis directs,for Roundabout Theatre Company. Previews begin Feb.12.(American Airlines Theatre,227 W.42nd St.212-719-1300.)21. What is the play by Rajiv Joseph probably about?.A.A type of art.B.A teenager's studio.C.A great teacher.D.A group of animals.22. Who is the director of The Audience?A. Helen Mirren.B. Peter Morgan.C. Dylan Baker.D. Stephen Daldry.23. Which play will you go to if you are interested in American history?A. Animals Out of Paper.B. The Audience.C. Hamilton.D. O n the Twentieth Century.BFor Western designers, China and its rich culture have long been an inspiration for Western creative."It's no secret that China has always been a source(来源)of inspiration for designers," says Amanda Hill, chief creative officer at A+E Networks, a global media company and home to some of the biggest fashion(时尚)shows.Earlier this year, the China Through A Looking Glass exhibition in New York exhibited 140 pieces of China-inspired fashionable clothing alongside Chinese works of art, with the aim of exploring the influence of Chinese aesthetics(美学)on Western fashion and how China has fueled the fashionable imagination for centuries. The exhibition had record attendance, showing that there is huge interest in Chinese influences."China is impossible to overlook," says Hill. "Chinese models are the faces of beauty and fashion campaigns that sell dreams to women all over the world, which means Chinese women are not just consumers of fashion — they are central to its movement. "Of course, only are today's top Western designers being influenced by China-some of the best designers of contemporary fashion are themselves Chinese." Vera Wang, Alexander Wang, Jason Wu are taking on Galiano, Albaz, Marc Jacobs-and beating them hands down in design and sales," adds Hil.For Hill, it is impossible not to talk about China as the leading player when discussing fashion. "The most famous designers are Chinese, so are the models, and so are the consumers," she says. "China is no longer just another market; in many senses it has become the market. If you talk about fashion today, you are talking about China-its influences, its direction, its breathtaking clothes, and how young designers and models are finally acknowledging that in many ways."24.What can we learn about the exhibition in New York?A. It promoted the sales of artworks.B. It attracted a large number of visitors.C. It showed ancient Chinese clothes.D. It aimed to introduce Chinese models.25.What does Hill say about Chinese women?A. They are setting the fashion.B. They start many fashion campaigns.C. They admire super models.D. They do business all over the world.26.What do the underlined words "taking on" in paragraph 4 mean?A. learning fromB. looking down onC. working withD. competing against27.What can be a suitable title for the text?A. Young Models Selling Dreams to the WorldB.A Chinese Art Exhibition Held in New YorkC. Differences Between Eastern and Western AestheticsD. Chinese Culture Fueling International Fashion TrendsCBefore the 1830s,most newspapers were sold through annual subscriptions in America, usually $8 to $10 a year. Today $8 or $10 seems a small amount of money, but at that time these amounts were forbidding to most citizens. Accordingly, newspapers were read almost only by rich people in politics or the trades. In addition, most newspapers had little in them that would appeal to a mass audience. They were dull and visually forbidding. But the revolution that was taking place in the 1830s would change all that.The trend, then, was toward the "penny paper"-a term referring to papers made widely available to the public. It meant any inexpensive newspaper; perhaps more importantly it meant newspapers that could be bought in single copies on the street.This development did not take place overnight. It had been possible(but not easy)to buy single copies of newspapers before 1830,but this usually meant the reader had to go down to the printer's office to purchase a copy. Street sales were almost unknown. However, within a few years, street sales of newspapers would be commonplace in eastern cities. At first the price of single copies was seldom a penny-usually two or three cents was charged-and some of the older well-known papers charged five or six cents. But the phrase "penny paper " caught the public's fancy, and soon there would be papers that did indeed sell for only a penny.This new trend of newspapers for "the man on the street" did not begin well. Some of the early ventures(企业)were immediate failures. Publishers already in business, people who were owners of successful papers, had little desire to change the tradition. It took a few youthful and daring businessmen to get the ball rolling.28.Which of the following best describes newspapers in America before the 1830s?A. Academic.B. Unattractive.C. Inexpensive.D. Confidential.29.What did street sales mean to newspapers?A. They would be priced higher.B. They would disappear from cities.C. They could have more readers.D. They could regain public trust.30.Who were the newspapers of the new trend targeted at?A. Local politicians.B. Common people.C. Young publishers.D. Rich businessmen.31.What can we say about the birth of the penny paper?A. It was a difficult process.B. It was a temporary success.C. It was a robbery of the poor.D. It was a disaster for printers.DMonkeys seem to have a way with numbers.A team of researchers trained three Rhesus monkeys to associate 26 clearly different symbols consisting of numbers and selective letters with 0-25 drops of water or juice as a reward. The researchers then tested how the monkeys combined—or added—the symbols to get the reward.Here's how Harvard Medical School scientist Margaret Livingstone, who led the team, described the experiment: In their cages the monkeys were provided with touch screens. On one part of the screen, a symbol would appear, and on the other side two symbols inside a circle were shown. For example, the number 7 would flash on one side of the screen and the other end would have 9 and 8. If the monkeys touched the left side of the screen they would be rewarded with seven drops of water or juice; if they went for the circle, they would be rewarded with the sum of the numbers—17 in this example.After running hundreds of tests, the researchers noted that the monkeys would go for the higher values more than half the time, indicating that they were performing a calculation, not just memorizing the value of each combination.When the team examined the results of the experiment more closely, they noticed that the monkeys tended to underestimate(低估)a sum compared with a single symbol when the two were close in value—sometimes choosing, for example, a 13 over the sum of 8 and 6. The underestimation was systematic: When adding two numbers, the monkeys always paid attention to the larger of the two, and then added only a fraction(小部分)of the smaller number to it."This indicates that there is a certain way quantity is represented in their brains, "Dr. Livingstone says. “But in this experiment what they're doing is paying more attention to the big number than the little one.”32. What did the researchers do to the monkeys before testing them?A. They fed them.B. They named them.C. They trained them.D. They measured them.33. How did the monkeys get their reward in the experiment?A. By drawing a circle.B. By touching a screen.C. By watching videos.D. By mixing two drinks.34. What did Livingstone's team find about the monkeys?A. They could perform basic addition.B. They could understand simple words.C. They could memorize numbers easily.D. They could hold their attention for long.35. In which section of a newspaper may this text appear?A. Entertainment.B. Health.C. Education.D. Science.根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。
2019年CUPT题目中英文版
中国大学生物理学术竞赛2019年题目1. Invent YourselfBuild a simple motor whose propulsion is based on corona discharge. Investigate how the rotor's motion depends on relevant parameters and optimize your design for maximum speed at a fixed input voltage.1. 你来发明构建一个基于电晕放电来推进的简易马达。
探究相关参数是如何影响转子运动的,并优化你的设计,从而获得固定输入电压下的最大速度。
2。
AerosolWhen water flows through a small aperture, an aerosol may be formed。
Investigate the parameters that determine whether an aerosol is formed rather than a jet for example。
What are the properties of the aerosol?2. 气溶胶当水流经一个小孔时,可能会形成气溶胶。
探究参数怎样能形成气溶胶而不是水柱等。
气溶胶的特性是什么?3. Undertone SoundAllow a tuning fork or another simple oscillator to vibrate against a sheet of paper with a weak contact between them。
The frequency of the resulting sound can have a lower frequency than the tuning fork's fundamental frequency。
2019年全国普通高等学校招生统一考试英语(全国卷3参考版)【含答案及解析】
2019年全国普通高等学校招生统一考试英语(全国卷3参考版)【含答案及解析】姓名___________ 班级____________ 分数__________一、阅读理解1. 阅读下列短文,从每题所给的四个选项( A 、 B 、 C 和 D )中,选出最佳选项,并在答题卡上将该项涂黑。
AMusicOpera at Music Hall: 1243 Elm Street. The season runsJune through August, with additional performances in March and September. The Opera honors Enjoy the Arts membership discounts. Phone: 241-2742. .Chamber Orchestra: The Orchestra plays at Memorial Hall at 1406 Elm Street, which offers several concerts from March through June. Call 723-1182 for more information. .Symphony Orchestra: At Music Hall and Riverbend. For ticket sales, call 381-3300. Regular season runs September throughMay at Music Hall in summer at Riverbend./home.asp .College Conservatory of Music (CCM): Performances are on the main campus( 校园 ) of the university, usually at Patricia Cobbett Theater. CCM organizes a variety of events, including performances by the well-known LaSalle Quartet, CCM’s Philharmonic Orchestra, and various groups of musicianspresenting Baroque through modern music. Students with I.D. cards can attend the events for free. A free schedule of events for each term is available by calling the boxoffice at 556-4183. /events/calendar .Riverbend Music Theater: 6295 Kellogg Ave. Large outdoor theater with theclosest seats under cover (price difference).Big name shows all summer long! Phone:232-6220. .1. Which number should you call if you want to see an opera?A. 241-2742.B. 723-1182.C. 381-3300.________D. 232-6220.2. When can you go to a concert by Chamber Orchestra?A. February. ____________________B. May.C. August. ______________________________D. November.3. Where can students go for free performances with theirI.D. cards?A. Music Hall.B. Memorial Hall.C. Patricia Cobbett Theater.D. Riverbend Music Theater.4. How is Riverbend Music Theater different from the other places?A. It has seats in the open air.B. It gives shows all year round.C. It offers membership discounts.D. It presents famous musical works.2. 阅读下列短文,从每题所给的四个选项( A 、 B 、 C 和 D )中,选出最佳选项,并在答题卡上将该项涂黑。
【全国卷Ⅲ】2019年普通高等学校全国统一考试英语试题(Word版,含答案)
绝密★启用前2019年普通高等学校招生全国统一考试(全国卷III)英语注意事项:1.答卷前,考生务必将自己的姓名、准考证号填写在答题卡上。
2.回答选择题时,选出每小题答案后,用铅笔把答题卡上对应题目的答案标号涂黑。
如需改动,用橡皮擦干净后,再选涂其他答案标号。
回答非选择题时,将答案写在答题卡上,写在本试卷上无效。
3.考试结束后,将本试卷和答题卡一并交回。
第一部分听力(共两节,满分30分)做题时,先将答案标在试卷上。
录音内容结束后,你将有两分钟的时间将试卷上的答案转涂到答题卡上。
第一节(共5小题;每小题1.5分,满分7.5分)听下面5段对话。
每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项。
听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
例:How much is the shirt?A. £19.15.B. £9.18.C. £9.15.答案是C。
第一节(共5小题;每小题1.5分,满分7.5分)听下面5段对话。
每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项。
听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
例:How much is the shirt?A. £19.15.B. £9.18.C. £9.15.答案是C。
1. Where does the conversation probably take place?A. In a library.B. In a bookstore.C. In a classroom.2. How does the woman feel now?A. Relaxed.B. Excited.C. Tired.3. How much will the man pay?A. $520.B. $80.C. $100.4. What does the man tell Jane to do?A. Postpone his appointment.B. Meet Mr. Douglas.C. Return at 3 o’clock.5. Why would David quit his job?A. To go back to school.B. To start his own firm.C. To work for his friend.第二节(共15小题;每小题1.5分,满分22.5分)听下面5段对话或独白。
2019年普通高等学校招生全国统一考试(北京卷)英语真题(含答案)
绝密★启用前2019 年一般高等学校招生全国一致考试(北京卷)英语(考试时间: 100 分钟试卷满分:120分)考生务势必答案答在答题卡上,在试卷上作答无效。
考试结束后,将本试卷和答题卡一并交回。
第一部分:知识运用(共两节,45 分)第一节语法填空(共10 小题;每题 1.5 分,共 15 分)第一节语法填空(共 10 小题:每题 1. 5 分,共 15 分)阅读以下短文,依据短文内容填空,在未给提示词的空白处仅填写 1 个适合的单词,在给出提示词的空白处用括号内所给词的正确形式填空。
AOn the first day of my first grade, I stood by the door with butterflies in my stomach. I1(voice)my biggest concern to my mother. "How will I make friends? " She handed me advice. " Be yourself. " For the past 20 years. I have lived by these words. Soon I will graduate and become part of the real world. Nervously 2 ( face) challenges, I know I will whisper to 3 (I ) the two simple words " Be yourself " .BEarth Day, 4 ( mark ) on 22 April, is an annual event aiming to raise public awareness about environmental protection. First celebrated 5 1970, the Day now includes events in more than 190 countries and regions(地域). No matter what you like to do, there is a way to get involved in various 6 ( activity ) on Earth Day. You can plant a tree, make a meal with locally grown vegetables, or save power — the possibilities are endless.CDoes the name of the college you attend really matter? Research on the question 7 (suggest)that, for most students, it doesn ’ What. students do at college seems to matter much more than 8 they go. The students benefitting most from college are those 9 are totally engaged (参加) in academic life, taking full advantage of the college’ s chancesdresourcesan(资源). Students should have a proper attitude towards college before thinking about which college to attend, and it’ s nevertoo early to make necessary preparations for a healthyand10(meaning)college experience.第二节完形填空(共20 小题;每题 1.5 分,共 30 分)阅读下边短文,掌握其粗心,从每题所给的A、 B、 C、D 四个选项中,选出最正确选项,并在答题卡大将该项涂黑。
2019年大学生英语竞赛(NECCS)D类初赛真题试卷(题后含答案及解析)
2019年大学生英语竞赛(NECCS)D类初赛真题试卷(题后含答案及解析)题型有:1. Listening Comperhension 2. V ocabulary and Structure 3. Cloze 4. Reading Comperhension 5. Error Correction 6. Translation 7. IQ Test 8. WritingPart I Listening ComperhensionSection A听力原文:1. W: Rob,why don’t you come and find me in the library after your history lecture? I’m going there to do my Algebra homework.M: Oh,I need to check a few things on the reference shelves.W: I mean,after that we can get some coffee.M: That’s good.Q: What is the woman going to do now?2. M: Laura said you used to be a doctor. I’m really curious why you’re doing this teacher training course!W: I worked for a doctor for three years,and I just didn’t like it. So I decided to teach biology.M: My father wanted me to be an accountant,but I’ve always known I wanted to be a dancer.Q: What was the woman’s first career?3. W: We’re so unlucky to be in the middle of the bus strike! We’ve spent the first day of our holiday waiting around.M: There’s probably no point waiting here in the station anymore. Why don’t we go to see if the trains are running?W: If they aren’t,I just would like to change our tickets and fly home early.Q: Why are the speakers trapped in the bus station?4. M: Dr. Smith,what’s it actually like at the South Pole? I know you’ve been there several times.W: Yes,I have,and each time I’m struck by the unusual beauty of the place. It’s magnificent,but you can only visit it in the summer months.M: You mean November to March?W: Yes,because it’s completely dark for four months of the year. And in addition,it’s the coldest place on earth.M: Colder than the North Pole? Why’s that?W: Antarctica is a land mass shaped like a dome,with the result that the winds blow down the slopes at speeds of up to 150 km an hour and that’s what makes it so cold.Q: Why is Antarctica so cold according to Dr. Smith?5. W: Mrs. Harwick always looks so severe! I could imagine her working as a manager of a museum,alone in some dark dusty room,but she seems such a strange personality to be teaching kids!M: Have you seen her at work,though? She’s actually very nice and kind! All kids behave well and like her when she speaks to them.Q: What proverb can we infer from the conversation?1.A.Have some coffee with Rob.B.Attend a history lecture on campus.C.Do her Algebra homework in the library.D.Go to the bookshop for some reference books.正确答案:C解析:女士说,她要去图书馆做代数作业。
2019年全国大学生英语竞赛初赛真题及答案(C类本科生干货)
2019年全国⼤学⽣英语竞赛初赛真题及答案(C类本科⽣⼲货)2019年全⽬⼤学⽣英语竞赛f}J赛(C级)2019 National English Competition for Coll ege Students(Level C -Preliminary)(Total: 150 marks Time: 120 minutes)Part I Listening Comprehension (30 marks)Section A (5 marks)In this section, you will hear five short conversations. Each conversation will be read only once. At the end 。
if each conversation, one question will be asked, and you will h(J1Je fifteen seconds to read the fourchoices marked A, B, C and D, decide which is the best answer. Then mark the corresponding letter on the answer sheet with a single line through the centre.1.A. The more one rests, the better one pe如rms duties.B.A good rest makes one's brain more creative.C.Drinking a cup of coffee is also a good way to rest.D.Working without rest is harmful to health.2.A. She reported the problem to her boss.C.She kept a record of her contribution.3.A. Tones and characters.B.She negotiated with Tim for a solution.D.She asked her colleague to help her.B.Reading and writing.D.Idioms and culture.C.Grammar and vocabulary.4.A. He is interested in reading its war stories.B.He learns about the heroic deeds of ancient warriors.C.He applies its strategies to basketball matches.D.He tells its war stories to the basketballers he coaches.5.A. It's punctual but a bit scary.B.It's the best means of transportation.C.It's a nightmare during rush hours.D.It's not bad but too crowded.2019National English Competitionfor College Students(Level C-Preliminary)参考答案及作⽂评分标准Part I Listening ComprehensionSection A1―5BCACDSection B6.F7.T8.T9.T10.F11―15ACCBDSection C16―20DACDBSection D21.the world over22.controversy and worry23.apples of gold24.change into25.making a living 26.experts27.make predictions28.genetics29.advanced technology30.a worldwide currencyPart II Vocabulary&Grammar31―35CABCE36―40DBADC41―45ACDBCPart III Cloze/doc/234790536.htmlpetitive48.expensive49.provide50.industry51.depending52.conflict53.dramatic54.to55.resultedPart IV Reading ComprehensionSection A56.public /doc/234790536.htmlmercial outlets59.new dawn60.Readily available(everywhere) Section B61―65CEGBASection C66.The culture where characters stand in for people.67.Because of modern technology.68.Images of things they like and relate to.69.It/They can quickly turn you into a3D figure.70.3D characters/avatars.Section D71.status of women72.impressive73.top /doc/234790536.htmlcation75.supportPart V Translation Section A 76.笔、墨、纸、砚合称“⽂房四宝”,这四宝历来摆放在古代⽂⼈的书房中。
2019年全国大学生英语竞赛C类初赛决赛真题及答案汇总集原创60页word
2019年全国大学生英语竞赛初赛试题2019 National English Contest for College Students(Preliminary)Part I Listening Comprehension(30 minutes,30 points)Section A Dialogues(10 points)Directions:In this section ,you will hear 10 short dialogues.At the end of each dialogue,a question will be asked about what was said.Both the dialogue and the question will be read only once.After each question there will be a pause.during the pause,you must read the four choices marked A,B,C and D,and decide which is the best answer.Then m ark the corresponding letter on the Answer Sheet with a single line through the center.1.A.A sales clerk.B.A police officer.C.A tailor.D.A nurse.2.A.By train.B.She walks.C.By car.D.By bus.3.A.Fish is the only dish left.B.Chicken is the only dish left.C.Vegetarian meals are not offered.D.There aren't any vegetarian meals left.4.A.He starts work next weekend.B.He'll be away.C.He'll be in the mountains.D.He's moving to Florida.5.A.In an elevator.B.At a dress store.C.On the seventh floor.D.At a department store.6.A.They felt it was disorganized.B.They were pleased with its Asian content.C.They felt it lacked Asian content.D.They felt it ignored recent events.7.A.He doesn't have enough time.B.He doesn't have a watch.C.The library doesn't have the articles he wants.D.He can't find the library.8.A.He wants the woman to dine out with them.B.He wants to work tomorrow.C.He wants the woman to finish dinner first.D.He wants to pay for the dinner.9.A.Twice a day.B.Twice a week.C.Once a week.D.Daily.10.A.At two o'clock.B.At four o'clock.C.At three thirty.D.At eight o'clock.Section B News Items(10 points)Directions:In this section,you will hear 10 pieces of short news from BBC or VOA.There will be a question following each piece of news.Write down the answer to each question in no more than 15 words.11._______________________________________12._______________________________________13._______________________________________14._______________________________________15._______________________________________16._______________________________________17._______________________________________18._______________________________________19._______________________________________20._______________________________________Section C Compound Dictation(10 points)Directions:In this section,you will hear a passage three times.When the passage is read for the first time,you should listen carefully for its general idea.Then listen to the passage again.When the passage is read for the second time,you are required to fill in the blanks numbered from 21 to 28 with the exact words you have just heard.For blanks numbered from 29 to 30,you are required to fill in the missing information.You can either use the exact words you have just heard or write down the main points in your own words.Finally,when the passage is read for the third time,you should check what you have written and rewrite the correct answers on the Answer Sheet.Although general Motors and General Electric are large multinational companies with operations around the globe,there are numerous smaller companies that engage in international trade.Because 95percent of the world's population and two-thirds of its (21)_____ power are located outside the United States,it is important for American (22)_____to be present in foreign markets.However,before we explain the different methods by which a company may (23)_____in international trade,we might first consider some important (24)_____that U.S.companies often fail to study before they sell products in a foreign country.These factors are (25)_____with differences in language,in values and attitudes,and in political (26)_____.When (27)_____Coca-Cola into the Chinese market in 1920,the company used a group of Chinese symbols that,when spoken,sounded like Coca-Cola.However,when read,these symbols meant,“a female horse fattened with wax”.Upon reentering the Chinese market in the 1970s,Coca-Cola used a series of Chinese (28)_____that translates into“happiness in the mouth”.(29)_________________________.Culture is the total pattern of human behavior that is practiced by a particular group of people.(30)_________________________.Part II V ocabulary and Structure(15 minutes,30 points)Section A Multiple Choice(20 points)Directions:Questions 31-50 constitute a complete passage.There are 20blanks in the passage.For each blank there are four choices marked A,B,C and D.Choose the one that best completes the sentence.Then mark the corresponding letter on the Answer Sheet with a single line through the centre.31.Senior Metropolitan police officers tried to dismiss the Noting Hill race riots which raged for five nights over the August bank holiday in 1958 as the work of“ruffians ,both colored and white”hell-bent on hooliganism ,according to _____ official files.A.recent revealed B.newly releasedC.previous disclosing D.earlier exposing32.But police eyewitness reports in the secret papers_____ that they were overwhelmingly the work of a white working class mob out to get the“niggers”.A.contain B.convinceC.consist D.confirm33.The ferocity of the Noting Hill“racial riots”,as the press called them at the time,shocked Britain into_____ for the first time that it was not above the kind of racial conflict then being played out in the American deep south.A.realizing B.witnessingC.watching D.identifying34.The carnival,which will_____ the streets of west London _____more than 1.5 million people this weekend,was started in 1959 as a direct response to the riots.A.crowd;of B.pour;forC.fill;with D.emerge;in35.While senior officers tried to play down the racial aspects of the riots,the internal Metropolitan police files released this month at the public record office confirm that the disturbances were overwhelmingly _____ by 300 to 400 strong“Keep Britain White”mobs ,many of them Teddy boys armed with iron bars ,butcher's knives and weighted leather belts,who went“nigger-hunting”among the West Indian residents of Noting Hill and Noting Dale.A.erupted B.commencedC.triggered D.inaugurated36.The first night left five black men _____ on the pavements of Noting Hill.A.lying unconscious B.there diedC.feel faint D.serious hurt37.The battles raged over the bank holiday weekend as the black _____responded in kind with counterattacks by large groups of“men of color”similarly armed.A.column B.armyC.brigade D.community38.Thomas Williams was stopped by the police as he came out of Bluey's Club on Talbot Road,Noting Hill.He _____a piece of iron down his left trouser leg,a petrol bomb in his right pocket and a razor blade in his inside breast pocket:“I have to protect myself,”he told the arresting officer.A.found to have B.was found to haveC.found having D.was found having39.The _____ files,which were sealed under the 75-year rule but have been released early,show that senior officers tried to convince the then home secretary,“Rab”Butler,that there was not a racial element to the rioting.A.forbidden B.confidentialC.incredible D.strict40.In his official report,Detective Sergeant M.Walters of the Notting Hill police said the national press had been wrong to portray the“widespread series of street disturbances”as“racial”riots:“Whereas there certainly was some _____ feeling between white and colored residents in this area,it is abundantly clear much of the trouble was caused by ruffians,both colored and white,who seized on this opportunity to indulge in hooliganism .”A.ill B.sickC.painful D.hurt41.But the police witness statements and private statistics _____ .A.told differently B.interpreted in a different wayC.existed m any differences D.told a different story42.The Met com missioner was told that _____ the 108people who were charged with offences ranging from grievous bodily harm to affray and riot and possessing offensive weapons,72 were white and 36 were “colored”.A.for B.fromC.of D.in43.It is popularly believed that the riot began on the night of Saturday,August 20,when a 400-strong crowd of white men,_____“Teds”,attacked houses occupied by West Indians.A.they are all B.many of themC.some were D.most of them belong to44.Among the _____ was Majbritt Morrison ,a young white Swedish bride of a Jamaican.A.offenders B.riotersC.victims D.residents45.She was pelted with stones,glass and wood,and _____ in the back with an iron bar as she tried to get home.A.bruised B.struckC.patted D.scratched46.The internal police witness statements provide graphic evidence of the motives of the mobs—at one point crowds several thousand strong roamed the streets of Notting Hill,_____ homes and attacking any West Indian they could find.A.plunging into B.breaking intoC.seeking for D.searching for47.PC Richard Bedford said he had seen a mob of 300 to 400 white people in Bramley Road _____:“We will kill all black bastards.Why don't you send them home?”A.shouting B.to cryC.utter D.announced48.PC Ian McQueen on the same night said he was told:“Mind your own _____,cops.Keep out of it.We will settle these niggers our way.We'll murder the bastards.”A.matters B.affairC.things D.business49.The disturbances continued night after night until they finally petered out on September 5.At the Old Bailey Judge Salmon later handed down exemplary _____ of four years each on nine white youths who had gone“nigger hunting”.A.decisions B.statementsC.trials D.sentences50.While those dealt with by the courts were overwhelmingly white ,the large number of black people also arrested and the official _____ there had not been a racial motive ensured a legacy of black mistrust of the Metropolitan police that has never really been eradicated.A.persistence B.perseveranceC.insistence D.instanceSection B Error Correction(10points)Directions:The following passage contains 9 errors.In each case only one word is involved.You should proofread the passage on the Answer Sheet and correct it in the following way:EXAMPLEOne night,quite late,I was still awake in the room I am shared with 1. ammy husband.I was lying on my right side and can hear a child crying. 2. couldGetting up,I went ∧see if our son was all right. 3. toHe was sleeping soundly,breathing deeply and gently. 4. √The ZipperWhatever did we do before the invention of the zipper?In 1893 the world's first zipper was produced in Chicago.Although the inventor claimed that it was a reliable fasteningfor clothing,this was not the case.The Chicago zipper sprang 51.______open without warning,or jammed shut,and it swiftly lostpopularity.Twenty years ago a Swedish-born engineer called 52.______Sundback solved the problem.He attached tiny cups to thebacks of the interlocked teeth,and this meant that the teeth 53.______could be enmeshed more firmly and reliably.At first zippers were made of metal.They were heavy,andif they got stuck it was difficult to free.Then came nylon 54.______zippers which were lighter and easier to use,and had smallerteeth.The fashion industry liked the new zippers far betterbecause they didn’t distort the line of the garment or weighing 55.______down light fabrics.They were also easier for the machiniststo fit into the garment.Meanwhile a new fastening agent made its appearance atthe end of the twenty century: velcro. Velcro is another product 56.______made from nylon.Nylon is a very tough synthetic fibre firstdeveloped in the 1930s,and bearing a name to mind the wearer 57.______of the two places where it was developed:NY for New York andLON for London.Velcro is made with very small nylon hooks onone side of the fastening which caught tiny looped whiskers on the 58.______other side of the fastening.It is strong and durable.Velcro is used on clothing,luggages and footwear.It is quick 59.______and easy to fasten and unfasten,and has taken a large part ofthe zipper's share of the market.It is also used in ways a zippercannot be used—for instance as an easily changed fastening onplaster casts,and to hold furnishing fabrics in a position.60.______Part III Situational Dialogues(5 minutes,10 points)Directions:Complete the following dialogues by choosing the best answer.Then mark the corresponding letter on the Answer Sheet with a single line through the centre.61.Rob:Hey Jill,you're looking great.Jill:Thanks,Rob.____________Rob:Well,you did it.How?Jill:I jog every morning,and I go to aerobics every other day.A.I bought this dress yesterday.Really smart.B.You are looking fine too.C.I'm recovering my strength after the flu.D.My New Year's resolution was to get in shape.62.Bob:Hi Jane.How are you?Jane:____________I didn't sleep a wink last night.The people next door were making a lot of noise again till very late at night.A.I'm feeling a bit out of sorts this morning.B.Fine,thank you.And you?C.I slept like a log and didn't want to get out of bed.D.It seems a bit unusual,you know.63.Ann :Aah!He's gorgeous!Look at those big,golden paws.When did you get him?Roger:Yesterday.____________Ann :Oh,right.What kind is she?Roger:A Labrador.A.Susan's got a more beautiful one.B.What's up?C.It's a she actually.D.Isn't it right?64.Tina:Wow,look at all the things on sale.____________Andrew:Yes,look,this shirt is 50 %off.Tina:And look at these shoes.They are 30 %off the normal price.A.I'd like to buy a skirt.B.There are some real bargains.C.Are the prices reasonable?D.These shoes are the same as mine.65.Woman:Have you finished the packaging?Man :____________Woman:Good.Because the truck will be coming soon,this is a rush job.A.Don't hurry m or I'll break the glass.B.Almost.I just have to wrap the glass and put it into boxes.C.No,I haven't.Why didn't you help me with it?D.Yes,I have.What else can I do for you?66.Customs Officer :________________________Mrs.John son :No,nothing at all.Customs Officer :No perfume,alcohol or cigarettes?Mrs.John son :Well,I have 200 cigarettes;that's all.A.Do you have anything in the bag,ma'am?B.Do you have anything to declare,ma'am?C.Do you want to buy something,ma'am?D.Is there anything I can do for you,ma'am?67.Linda:Hello.I'd like to send this package,please.Clerk:____________________________________Linda:First class.How long will that take?Clerk:About three days.A.How would you like to send it?B.Which class are you in?C.Where do you want to send it to?D.Which class is it in?68.Assistant:Can I help you?Colin :Yes,it's about this sports shirt.I washed it the other day.The colour ran and it shrank.Assistant:Oh dear,I see.________________________Colin :I'm afraid not.Assistant:I'm sorry,but I'm not allowed to change anything without a receipt.A.Did you buy it here?B.Would you want to change it?C.Do you have the receipt?D.Could you tell me who sold it to you?69.James:Could I have my bill,please?Can I pay by credit card or eurocheque?Receptionist:____________James:I'll pay by credit card,then.Receptionist:That's fine.I hope you enjoyed your stay here.A.Here's your bill.B.Sorry,we don't take credit card.C.You can pay by eurocheque.D.Yes,we take both.70.Husband:When is our anniversary?Wife:________________________Husband:No,it's just that I bought these flowers for you and I was hoping today was the day.A.Hmm ...I can't remember either.Why?B.Hey,are these flowers for me?C.Who cares?Do you want to give me a surprise?D.Are you joking?Have you really forgotten again?Part IV Reading Comprehension(25 minutes,40 points)Section A Multiple Choice(10 points)Directions:There is one reading passage in this part.The passage is followed by 5 questions or unfinished statements.For each of them there are four choices marked A,B,C and D.You should decide on the best choice and mark the corresponding letter on the Answer Sheet with a single line through the centre.Questions 71 to 75 are based on the following passage:Taking a peep at what's going on in your headCARL Filer,18,a star salesman at a B&Q hardware store in the UK,was called up for promotion within one week of starting work.But,instead of being made supervisor,he was sacked—after his employers saw the results of his psychometric test.You might think that anyone who answers that he“strongly disagrees he is an over-achiever is asking for trouble,but Mr Filer already thought he had proved himself more than capable.This year,nearly half of UK firms—46 percent—will use psychometric tests to select trainees,compared with just 17 percent in 2000,according to a report for GTI,a publisher of graduate career guides.These tests,which rate candidates’ability and gauge their personality,have been used in the UK since the 1980s.But assorted studies have shown most people—graduates in particular—are wholly cynical about the idea of their personality being“measured.“People tend to see them as either too silly or too clever,says Clive Fletcher,professor of occupational psychology at University of London.“But all the evidence indicates the tests do have some value.The first personality test as we know it,was developed by the American army in 1917 to filter outweak recruits.But it was not until the 1980s that the tests became popular in Britain.With a rising number of graduates going for a decreasing number of jobs,organizations began to see psychometric testing as a cheap,reliable alternative to the expensive,time-consuming interview.But today the tests are becoming alarmingly sophisticated and are edging towards probing the “dark side:pathology and personality disorders.Increasingly,tests are being used to try to detect promising young graduates who may,later in life,fly off the rails(go crazy);or to stop psychopaths(having mental disorder)getting recruited.In the future,interviewees could even be given a mouth swab to reveal the genetic and biological markers of personality.“We are heading for the era of genetic screening,”warns Carolyn Jones,of the Institute for Employment Rights.“I think these tests are very flawed.And there are other problems with the tests.For starters,it is possible to fake it—even the test producers agree on this.But they have made it as hard as possible.For example,look at whether you agree or disagree with the following two statements:“New ideas come easily to me and“I find generating new concepts difficult.How long did it take you to realize they both could mean the same thing?The main argument,however,is that the tests are invalid and cannot quantify(put a numerical value on)something as changeable as personality.The golden rule is then,that a psychometric test should never be used as the sole basis of selection,but should always be followed by interviews.71.Most people's attitude towards the psychometric test is ______.A.contemptuous B.favorable C.tolerant D.confounded72.Which of the following is one of the reasons why psychometric testing wins an advantage over interviews?A.It doesn't cost any money.B.It requires no equipment.C.It is time-saving.D.It can be done within seconds.73.Which of the following statements is the author's idea?A.Psychometric tests are defective.B.Psychometric tests should not be the only way to recruit promising young graduates.C.Psychometric tests are invalid and cannot quantify something changeable as personality.D.Psychometric tests are golden rules.74.The test producers make the tests very complicated to ______.A.avoid cheating B.improve genetic screeningC.find out the best ideas D.generate new concepts75.Which of the following is not true according to the passage?A.The American army developed the first personality test to screen out weak recruits.B.In the future,interviewers could give a mouth swab to reveal interviewees’symptoms.C.There are possibilities for starters to cheat in the psychometric tests.D.Interviews still play an important role in evaluating interviewees.Section B Short Answer Questions(30 points)Directions:In this part there are 3 passages with 15 questions or incomplete statements.Read the passages carefully.Then answer the questions in the fewest possible words(not exceeding 10 words).Remember to rewrite the answers on the Answer Sheet.Questions 76 to 80 are based on the following passage:The 8 Steps of Social Invention1.Get ready to play.Like other types of creativity,social inventiveness flourishes when you begin thinking outside conventional boundaries.Charlie Girsch,a St.Paul,Minnesota-based creativity consultant,suggests that you start by playing with obviously absurd explanations for everyday events.“If traffic is slow,you'll be tem pted to say,‘Hmm.Must be an accident up ahead.’Instead,try saying,‘Must be a family of turtles crossing the highway’or‘I expect there's some kind of alien abduction going on.’You'll be amazed how soon you will be looking at familiar problems in new ways.”Girsch's book,Fanning the Creative Spirit(Creativity Central,2019)has scores of other exercises for limbering up the inventive part of your brain.2.Generate a zillion far-fetched ideas.Concerned about the homeless in your neighborhood?Imagine a Homeless Parliament,a Homeless Circus,homeless families forming an orchestra,a homeless museum ...and on and on.Generate like mad with no regard for feasibility in order,as social invention pioneer Nicholas Albery advises,to“overcome e worthy-but-dull ideas.”Eventually the two or three best ideas will begin to stand out.3.Take your wildest idea and bring it down to earth.How about that Homeless Circus?Could it turn into a forum for homeless people to display their creative talents?A performance series about homelessness?A neighborhood carnival with the homeless as guests of honor?Your flakiest idea may have a germ of brilliance that actually makes it more attractive,and thus more feasible(and fundable),than its worthy-but-dull cousins.4.Look for in venations that solve more than one problem.The Slow Food Movement,born in Italy,boosts local farmers and regional cuisine traditions and restaurateurs and the same time that it“feeds”our hunger for authentic tastes,healthy eating,and a more leisurely,saner style of life.5.Accentuate the positive.“A very common question that I get when I work with people in communities is‘Why doesn't anybody care about our problems?’”notes M chael Patterson,a social inventor and activist in Massachusetts.“What a worthless question.‘Why’?questions are for philosophers.Ask ‘How’?and‘What’?questions—they are a lot more practical.”For instance,Patterson asks,“What would you do if you knew you couldn't fail?”6.Give it a rest.Walk away from your favorite idea for a while,forget about it,let it sleep.With your conscious mind out of the way,your subconscious gets to fiddle with the concept for a while,and you just might have an unexpected insight or breakthrough.7.Practice“yes and”in stead of“yes but”.No matter how tempted you are to say“Yes,but this will be hard because,”or“Yes,but a million other people are doing this,”shift the conjunction to“and”and see what sort of positive refinement or change emerges.“Yes,and we could concentrate on immigrants.”“Yes,and we can make it open to all ages.”8.Get your idea into the world.This is the tough part.You might seek out the help of activists who will take a shine to your ideas.Or become an organizer yourself.Paul Glove,a New York social inventor,coun-sels:“If you have an idea you believe in,write a pamphlet with your phone number on it and post it inLaundromats and bookstores.If three people call you,have lunch with them and call yourselves an organization.If five people call,meet with them and issue a press release.”Presto,you're launched.76.To generate far-fetched ideas helps to ______.77.Michael Patterson wants us to come up with“How”?and“What”?instead of“Why”?questions because he considers they are more practical than ______.78.The purpose to practice“yes and”instead of“yes but”is to make yourself more ______.79.According to the article,when one has difficulty developing his favorite idea,he should ______.80.One should not only generate far-fetched ideas but also ______ because the latter step is the nearest to reality.Questions 81 to 85 are based on the following passage:Thin Slice of TV Has Big MarketIt is too early to write an obituary for bulky picture tubes,which will remain the most affordable TV sets for years to come.But,analysts and industry executives insist that thin screens already have started to become the dominant format for TV sets in the digital era.Sharp price cuts have brought plasma sets and other thin,flat televisions out of high-end electronic boutiques and into thousands of mass-market outlets such as Cosco,a wholesale buying club in the US,best known for offering members bulk items and big discounts.The least expensive plasma sets still cost a hefty US $3,000or more ,yet sales are growing so rapidly that many manufacturers are racing to boost production.That increase,combined with expanding production capacity and improved technology,could push the price of plasma sets down by one-third next year,according to analyst Richard Doherty of Envisioneering Group,a US research firm.But manufacturers are not just competing with each other;they are also trying to fend off challenges from competing thin-screen technologies,such as liquid crystal displays(LCD).The demand for thin screens is fuelled in part by the advent of DVDs and digital TV broadcasts,which offer more detailed pictures and more lifelike colors than conventional analog TV signals.To see the difference,consumers need a set that can pack more information onto the screen than their current TVs can.This sharpness is most vivid on screens that are 40inches diagonal or larger.At that size,however,traditional direct view and projection TVs are so bulky that many consumers have trouble finding a place for them at home.Hence the interest in thin screens—models slender and light enough to hang on a wall.The glass panels at the heart of plasma and LCD sets come mainly from about a dozen companies with factories in Japan,South Korea and,increasingly,China.About 800,000 plasma panels will be shipped this year around the world,analysts say.That is a tiny amount compared with the overall market for TVs,which was about 140 million sets last year.But,industry experts said 2019would be a“breakout year”or plasma because shipments should double.Helping drive the growth are new or expanded manufacturing facilities.For example,Japanese electronics giant NEC last year doubled the capacity of its Japanese factory—reaching 300,000to 400,000 plasma panels.And it plans to double it again in 2019,officials said.As competition has heated up during the last four years,prices have fallen more than 50 percent.According to“NPD Tec world”,the average price of a plasma display sold in the US dropped from US $12,700in January 2019 to US $6,100in October 2019.The best markets for plasma screens have been in Asia,and about half of the sets have gone to businesses instead of homes.LCD TVs carry a premium price—they can be 10 times as expensive as a comparable tube-driven television—that knocks them out of most buyers’budgets.But LCD panels are quickly taking over the market for computer monitors,and the tens of millions of panels being produced for that segment will help push down prices for LCD TVs,analysts predicted.Sharp Electronics,for one,is betting heavily on LCDs.Its chairman,Toshiaki Urushisako,has predicted that Sharp will switch completely from conventional tube sets to LCD TVs in Japan by 2019.Flat-panel refers to wafer-thin(3 inches or less)TVs,whereas flat-screen may actually describe traditional cathode-ray-tube sets(CRTs)whose glass front lacks the distorting curve that TVs have had for 50 years.Be aware of two things:One,flat-panel technology may not be high-definition TV;for eventual HDTV reception,some of these sets will require a separate HD tuner.Two,some flat-panel TVs are just the panel and lack speakers and sometimes a built-in tuner.Price range:US $700-2,000LCD vs plasmaIn general,LCD technology is used for smaller screens because of the enormous number of transistors needed to turn the glasslike liquid crystals into color images.The larger the display,the more transistors,the more chance of failed connections.A plasma screen is found in TV sets larger than 20 inches.Color is comparable to an LCD's.LCDs do not deteriorate over time,while a plasma display averages 30,000 hours(a traditional TV screen can go for 20,000),after which it fades over a period of years.Earlier problems with the quality of plasma's contrast have been addressed,and current screens are cleaner and better defined.Price range:US $600-2,800HDTVSimply put,high-definition TV is 10 times as sharp as traditional TV,and the sound is digital,like CD sound,not FM ,which is what traditional TV provides.HD technology achieves its visual clarity with more immage lines on the screen.Where analog TVs have 480 horizontal lines,HDTV has 720 or 1,080lines.Be aware :m any HDTV sets being sold now are in fact only HDTV monitors ,offering a crisp picture .To receive genuine high-definition television signals,owners must buy a separate HDTV receiver.Price range:US $1,000-6,000LOS ANGELEST IMES81.According to the article,TV sets with _____will still be the most popular in the coming years.82.The factors that stimulate the thin screens to be more and more popular include _____,_____,and_____.83.The rapidly expanding market for LCD panels and their large-scale production will help lower _____.。
2019年全国大学生英语竞赛D类试题及参考答案
2 0 1 9 National English Competition for College Students( Level D - Sample )参考答案及作文评分标准Part I Listening Comprehensionsection aI 5 DBABD6 1 0 TFFTT I 1 --- 1 5 ACBBDSection c1 62 0 BDCDCSection D会版权所有2 1 . firther away from 2 2 alive 23 . a bit painful 24 get bu st2 4 . get 1 1 17 9 4 , births and deaths2 6 . gardens 2 7 . Tower Restaurant a4 8 views 2 9 . loeal history3 0 . seven - screen / 7 - screenPart Vocabulary Grammar3 1 - 3 5 BDCEC 3 6 -4 0 ACEDB1 - 4 5 BDADEPart l cloze4 6 . regarding 4 7 . 4 8 . 4 9 .5 0 .5 1 . between 5 2 underestimated 5 3 . Recognizing 5 4 . al - o 5 5 standardPart I Reading Comprehensionsection5 6 . Inexpensive items 5 7 . no emotion 5 8 . 5 9 . Drug 6 0 . guilty and ashamedSection B6 1 - 6 5 CFADOSection C66.18516 7 . They are Sydney Harbor , the Sydney Opera House and Fort Denison .6 8 miles6 9 . When you look at them from a distance . they are covered in a blue mist that comes from the small dropsof eucalyptus oil in the air .7 0 . In Center Tower .Section D ( 1 0 marks )7 1 . trapped 7 2 breaks down 7 3 consumed 1 1 7 4 . affected n 7 5 . clean upPart v translationSection A 17.纽约大学成立于1831年,现如今已经成为全美国境内规模最大的私立大学之当时,诸多美国学院和大学的学生都是特权阶级成员阿尔伯特加勒延和大学的创建者计划将纽约大学建成一座向所有人开放,无论出身宗教信仰、以及社会背景的高等教育中心。
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中国大学生物理学术竞赛2019年题目1. Invent YourselfBuild a simple motor whose propulsion is based on corona discharge. Investigate how the rotor's motion depends on relevant parameters and optimize your design for maximum speed at a fixed input voltage.1. 你来发明构建一个基于电晕放电来推进的简易马达。
探究相关参数是如何影响转子运动的,并优化你的设计,从而获得固定输入电压下的最大速度。
2. AerosolWhen water flows through a small aperture, an aerosol may be formed. Investigate the parameters that determine whether an aerosol is formed rather than a jet for example. What are the properties of the aerosol?2. 气溶胶当水流经一个小孔时,可能会形成气溶胶。
探究参数怎样能形成气溶胶而不是水柱等。
气溶胶的特性是什么?3. Undertone SoundAllow a tuning fork or another simple oscillator to vibrate against a sheet of paper with a weak contact between them. The frequency of the resulting sound can have a lower frequency than the tuning fork’s fundamental frequency. Investigate this phenomenon.3. 低音让一个音叉或一个简易的振子靠着轻微接触的纸振动。
产生的声音频率会比音叉的基本频率更低,探究此现象。
4. Funnel and BallA light ball (e.g. Ping-Pong ball) can be picked up with a funnel by blowing air through it. Explain the phenomenon and investigate the relevant parameters.4. 漏斗与球通过向漏斗中吹气,一个轻质小球(如乒乓球)可以被拾起。
解释此现象并探究相关的参数。
5. Filling Up a BottleWhen a vertical water jet enters a bottle, sound may be produced, and, as the bottle is filled up, the properties of the sound may change. Investigate howrelevant parameters of the system such as speed and dimensions of the jet, size and shape of the bottle or water temperature affect the sound.5. 填充瓶子当垂直的水柱进入瓶子时,可能会产生声音,并且,随着瓶子被填充,声音的特性会改变。
探究此系统的相关参数,如水柱的速度与尺寸,瓶子的大小与形状或水温等对声音的影响。
6.Hurricane BallsTwo steel balls that are joined together can be spun at incredibly high frequency by first spinning them by hand and then blowing on them through a tube, e.g. a drinking straw. Explain and investigate this phenomenon.6. 飓风球通过起始时用手旋转,并使用一根管子(如吸管)朝其吹气,连在一起的两个钢球能以极高频率旋转。
解释并探究这一现象。
7. Loud VoicesA simple cone-shaped or horn-shaped object can be used to optimize the transfer of the human voice to a remote listener. Investigate how the resulting acoustic output depends on relevant parameters such as the shape, size, and material of the cone.7. 响亮的声音一个简易的圆锥形或牛角形装置可以优化人声向远处收听者的传递。
探究锥形装置的形状、大小、材质等相关因素对其声学输出的影响。
8.Sci-Fi SoundTapping a helical spring can make a sound like a “laser shot”in a science-fiction movie. Investigate and explain this phenomenon.8. 科幻之声敲击螺旋弹簧可以模拟出类似科幻电影中“激光枪”的声音。
探究并解释这一现象。
9. Soy Sauce OpticsUsing a laser beam passing through a thin layer (about 200 μm) of soy sauce the thermal lens effect can be observed. Investigate this phenomenon.9. 酱油光学以一束激光穿透一层薄的酱油(约200 μm),可以观察到热透镜效应。
探究此现象。
10. Suspended Water WheelCarefully place a light object, such as a Styrofoam disk, near the edge of a water jet aiming upwards. Under certain conditions, the object will start to spin while being suspended. Investigate this phenomenon and its stability to external perturbations.10. 悬浮水轮在靠近水柱的边缘小心地朝上放置一个轻质物体,如聚苯乙烯泡沫塑料盘,在一定条件下,物体将在悬浮的同时开始旋转。
探究这一现象以及它对外部扰动的稳定性。
11.Flat Self-AssemblyPut a number of identical hard regular-shaped particles in a flat layer on top of a vibrating plate. Depending on the number of particles per unit area, they may or may not form an ordered crystal-like structure. Investigate the phenomenon.11.自组装平面在平坦的振动板上放置一些完全相同、形状规则的硬质颗粒,根据单位面积上的颗粒数量,它们可能形成或不能形成有序的晶体状结构。
探究此现象。
12. Gyroscope TeslameterA spinning gyroscope made from a conducting, but non-ferromagnetic material slows down when placed in a magnetic field. Investigate how the deceleration depends on relevant parameters.12.陀螺仪特斯拉计当放置在磁场中时,一个由非铁磁性导电材料制成的旋转的陀螺仪会减速。
探究相关参数对减速的影响。
13. MoiréThread CounterWhen a pattern of closely spaced on-intersecting lines (with transparent gaps in between) is overlaid on a piece of woven fabric, characteristic moiréfringes may be observed. Design an overlay that allows you to measure the thread count of the fabric. Determine the accuracy for simple fabrics (e.g. linen) and investigate if the method is reliable for more complex fabrics (e.g. denim or Oxford cloth).13.莫尔织物分析镜当紧密排列的非相交线条(其间有透明间隙)组成的图案覆盖在一块机织物上时,可以观察到独特的莫尔条纹。
设计一种使你能够测量织物经纬密度的覆盖物。
确定测量简单织物(例如亚麻布)的精确度,并探究此方法能否适用于更复杂的织物(例如牛仔布或牛津布)。
14. Looping PendulumConnect two loads, one heavy and one light, with a string over a horizontal rod and lift up the heavy load by pulling down the light one. Release the light load and it will sweep around the rod, keeping the heavy load from falling to the ground. Investigate this phenomenon.14.循环摆将一重一轻两个负载通过水平杆上的一根绳子相连,并下拉轻负载以吊起重负载。