文档库 最新最全的文档下载
当前位置:文档库 › 9月21日雅思阅读原题详解:abriefhistoryofchocolate

9月21日雅思阅读原题详解:abriefhistoryofchocolate

9月21日雅思阅读原题详解:abriefhistoryofchocolate
9月21日雅思阅读原题详解:abriefhistoryofchocolate

9月21日雅思阅读原题详解:A Brief History of Chocolate

9月21日的雅思阅读考试考到了教主刘洪波老师编著的《雅思阅读真经5》中的两篇原文!分别是《A Brief History of Chocolate》和《From Novices to Experts》。今天我们先来看第一篇《A Brief History of Chocolate》的详细解析

~AWhen most of us hear the word chocolate, we picture a bar, a box of bonbons, or a bunny. The verb that comes to mind is probably “eat,” not “drink,” and the most apt adjective would seem to be “sweet.” But for about 90 percent of chocolate’s long history, it was strictly a beverage, and sugar didn’t have anything to do with it. “I often call chocolate the best-known food that nobody knows anything about,” said Alexandra Leaf, a selfdescribed “chocolate educator” who runs a business called Chocolate Tours of New York City. B The terminology can be a little confusing, but most experts these days use the term “cacao” to refer to the plant or its beans before processing, while the term “chocolate” refers to anything made from the beans, she explained. “Cocoa” generally refers to chocolate in a powdered form, although it can also be a British form of “cacao.” Etymo logists trace

the origin of the word “chocolate” to the Aztec word “xocoatl,” which referred to a bitter drink brewed from cacao beans. The Latin name for the cacao tree, T h e o b r o m a c a c a o , means “food of the gods.”Word & Expression1. pictur e1) ① n.照片;图画;相片;描绘

② v. 想象;描述;描写;设想My visits enabled me to build up a broad picture of the culture.参观游览使我对这个文化

有了大致的了解。(build up a broad picture of对...有大致的了解)2)搭配:out of the picture不知道详情, 不熟悉一切2.

a bar of一条,一块He's holding a bar of chocolate in his right hand and a bottle of lemonade in his left hand.他右手

拿着一块巧克力左手拿着一瓶柠檬水。3. bonbon (认识即可)n. 夹心软糖;(法)小糖果;棒棒糖4. bunny (认识即可)n. 兔子5. come to mind想到,浮现在脑海中Surveillance is the first application that comes to mind.监控是我们想到的第一个应用。6. apt1) adj. 易于…的, 有…倾向的;恰当的, 适宜的;聪明的, 灵巧的She is apt at languages.她善于学习语言。2) 同义替换: appropriate, suitable, fitting, pertinent, right, proper, capable3) 搭配:be apt to倾向于7. beveragen. 饮料The sale of alcoholic beverages is restricted to those over 21.酒精饮料只能出售给21岁以上的成年人。8. have something to

do with1) 和…有关That might have something to do with how hunger heightens your sensitivity for saltiness

and sweetness.这也许和饥饿有关。饥饿使你对咸甜味更加敏感。2) have nothing to do with和…无关9.

best-knownadj. 众所周知的; 著名的It may not be the among the best-known of the city's museums, but this monument to sex education, history, and cultural significance isn't just for academics.它也许还称不上是纽约最知名的博物馆,但它在性的教育、历史、文化意义上所具有的纪念碑意义并不仅仅是对学者而言。10. run a business1)创业,经营一个企业2) runv.管理,运转11. terminologyn. 专门用语;术语;术语学; 术语用法The article uses rather specialized musical terminology.这篇文

章用了相当专业的音乐术语。(rather adv.相当地) 12.

refer tovt. 涉及, 指的是, 提作, 参考, 适用于Writers often refer to a dictionary.作家时常参考字典。13. bean1)

① n. 豆;豆荚② vt.击…的头部Jimmy hadn't a bean to his name.吉米什么值钱的东西都没有。2) 搭配:not have a bean没钱;不名一文14. process1) ① vt. 处理;加工② n. 过程,进行;方法,步骤;作用;程序;推移③ vi. 列队前进④ adj. 经过特殊加工(或处理)的How can we preserve our cultural urban legacies in the

process of development?在这发展的进程中我们怎样保护

我们的城市文化遗产?2) 同义替换:deal with, handle, treat, manage; procedure, course, development, progression, method, means3) 搭配:in process在进行中;过程中的15. make from(常用被动)1) 某物由.....构成的They were made from hard plastics and that's why they were very breakable.它们是由硬塑料制成的,所以非常的容易碎裂。2) make of与make from区别make of 的原材料是看的到的,即平常我们说的物理现象make from的原材料是看不到的16. etymologists(认识即可)n. 语源学17. trace1) ① vi. 追溯;沿路走② vt. 追踪,查探;描绘;回溯③ n. 痕迹,踪迹;微量;迹线;缰绳The book traces the history of the game back to an incident in 1863. 该书把这种运动的历史追溯至1863 年的一起事件。(trace back to追溯到…)2) 同义替换:find, locate, discover, draw, outline, mark out; suggestion, hint, sign, indication 18. brew① vt. 酿造;酝酿② vi. 酿酒;被冲泡;即将发生③ n. 啤酒;质地This wine is brewed from rice.这酒是用大米酿造的参考译文:A.大多数人听到巧克力这个词时,就会联想到一条巧克力棒、一盒奶油夹心巧克力糖,或一只巧克力兔子。进入脑海的动词则很可能是“吃”,而并非“喝”;而我们想到的最恰当的形容词大概是“甜”。然而

严格说来,在巧克力发展的漫长历史中,人们在绝大部分时间里都把它当做一种饮料,而且糖跟它一点关系也没有。“我常说,巧克力是人人都知道但却对它一无所知的食品。”亚历山德拉·利夫如是说。她自诩为“巧克力教师”,还经营着一家名为“纽约巧克力之旅”的商店。B.虽然有点儿让人无法理解,可如今的大多数专家都用“可可”这一术语指代可可树或尚未

加工的可可豆,而用“巧克力”这一术语指代任何经由可可豆

加工而成的食品。一般而言,“可可粉”是指粉末状的巧克力,虽然它在英国人眼里也是“可可”的一种形式。词源学家对“巧克力”一词追根溯源,认为它来自阿兹特克语中“xocoatl”一词,该词指的是一种由可可豆酿制而成的苦涩饮料。在拉丁语中,可可树被称作“Theobroma cacao”,意为“神灵的食物”。CMany modern historians have estimated that chocolate has been around for about 2000 years, but recent research suggests that it may be even older. In the book The True History of Chocolate, authors Sophie and Michael Coe make a case that the earliest linguistic evidence of chocolate consumption stretches back three or even four millennia, to pre-Columbian cultures of Mesoamerica such as the Olmec. Last November, anthropologists from the University of Pennsylvania announced the discovery of cacao residue on pottery excavated in Honduras that could

date back as far as 1400 B.C. It appears that the sweet pulp of the cacao fruit, which surrounds the beans, was fermented into an alcoholic beverage of the time. DIt’s hard to pin down exactly when chocolate was born, but it’s clear that it was cherished from the start. For several centuries in pre-modern Latin America, cacao beans were considered valuable enough to use as currency. One bean could be traded for a tamale, while 100 beans could purchase a good turkey hen, according to a 16th-century Aztec document.Word & Expression1. estimate1) ① vi. 估计,估价② n. 估计,估价;判断,看法③ vt. 估计,估量;判断,评价Some estimates put the figure at as high as 50%. 有些估计这一数字高达50%。2) 同义替换:approximation, guess, quote, price, valuation; assess, reckon, value, appraise3) 搭配:at an estimate据某种估计2. be around存在,生存I'm glad we're not going to be around when that happens.我很庆幸这种情况发生时我们已经不在了。3. make (out) a case (for) 证明……有理由,提出有利于……的理由The researchers did not make out a case for the phenomenon.研究人员们没有找到充分的理由解释那种现象发生的原因。4.

consumption1) n. 消费, 消耗; 消费[耗]量;肺病; 结核

病Doctors say that children need to increase their consumption of fruit and vegetables.医生们说儿童需要多吃水果和蔬菜。2) 同义替换:feeding, eating, drinking, intake, ingestion, use, expenditure, utilization, spending 5. stretch back追溯Warnings that curiosity can be destructive stretch back to the very beginning of civilization.对于好奇心具有破坏作用的警告可以追溯到教化之初。6. anthropologist (认识即可)1) n. 人类学者,人类学家2) -ist后缀,表示“…家”scientist 科学家artist艺术家pianist 钢琴家

7. announce1) ① vt. 宣布;述说;预示;播报

② vi. 宣布参加竞选;当播音员The company proudly announced the launch of its new range of cars. 该公司骄

傲地宣布其新一系列的轿车已投放市场。(launch n.产品的上市)2) 同义替换:proclaim, make known, publicize, broadcast, declare, say, pronounce, state3) 搭配: announce to通知某人;向…宣布8. residue1) n. 残渣;剩余;滤渣She had the gunshot residue on her hands.她手上还有枪药的残留物。2) 同义替换:remains, rest, scum, filtrate 9. excavate1) vt. 挖掘, 开凿; 挖出, 发掘Archaeologists excavated fossilized dinosaur tracks from the riverbed.考古学家从河床中挖掘出恐龙的足迹化石。

2) 同义替换:dig, mine, exhume, unearth, hollow out 10.

date back追溯到;回溯至They found that the snails dated back almost 46,000 years.他们发现这些蜗牛可追溯到约46000年前。11. pulpn. (水果的)果肉After the abstraction of the juice from the orange, only a tasteless pulp is left.柳橙里的汁去掉後,只剩下不可口的肉了。(abstraction n.提取,抽取) 12. ferment1) ① n. 酵素;发酵;动乱

② vi. 发酵;动乱③ vt. 使发酵;使动乱;酝酿The country was in ferment. 这个国家那时正处在动乱中。2)

同义替换:agitation, commotion, confusion, excitement, turbulence, turmoil, upheaval, uproar; agitate, incite, provoke 13. pin down确定,证实As with any evolving art form, trying to pin down the rules is impossible.如同任何不断发展的艺术形式,舞蹈没有一成不变的规则。14. cherish1) vt. 珍爱, 珍视, 爱护;怀有, 抱有We should learn how to cherish time and use it efficiently.我们该学习如何珍惜时间且有效率的利用它。2) 同义替换:treasure, value, appreciate3) 搭配:cherish the memory of怀念(某人) 15. currency1) n. 货币;通货They make money by speculating on the currency markets. 他们通过在货币市场投机赚钱。(make money赚钱speculate v.投机)2) 同义替换:money, coinage, exchange, cash, bills, paper money, prevalence, frequency 16. purchase1)

① n. 购买;紧握;起重装置② vt.购买;赢得

③ vi. 购买东西They purchased the house from an elderly couple.他们从一对老夫妇手中买了那套房子。2) 同义替换:buy, merchandise, grip, grasp, hold; pay for, acquire, obtain, win, gain 参考译文:C. 据许多现代历史学家估算,巧克力已有大约两千年的历史,但最新研究表明,它的历史可能还要更久。在《巧克力的真实历史》一书中,作者索菲和迈克尔·科以充分的证据证实,关于食用巧克力的最早文字记录可追溯至三千甚至四千年前,那是哥伦布发现新大陆之前的中美洲文明——如奥尔梅克文明——所在的年代。去年11月,宾夕法尼亚大学的人类学家宣布在从洪都拉斯出土的瓷器上发现了可可豆残渣的遗迹,其年代之久远可追溯至公元前1400年。看来,当时人们好像把包裹可可豆的甜美果

肉发酵酿制成了一种含酒精的饮料。D.我们很难确定巧克

力诞生的确切年代,但有一点是很明确的,那就是自诞生之初,巧克力就一直备受珍爱。在前现代的拉丁美洲,人们在几个世纪里一直把可可豆视若珍宝,甚至把它当做货币使用。根据一份16世纪的阿兹特克文件记载,用一颗可可豆可以

换来一个墨西哥玉米粉蒸肉卷,而用一百颗可可豆可以买到一只上好的母火鸡。EBoth the Mayans and Aztecs believed the cacao bean had magical, or even divine, properties, suitable for use in the most sacred rituals of birth, marriage

and death. According to the book The Chocolate Connoisseur, Aztec sacrifice victims who felt too melancholy to join in ritual dancing before their death were often given a gourd of chocolate (tinged with the blood of previous victims) to cheer them up. FSweetened chocolate didn’t appear until Europ eans discovered the Americas and sampled the native cuisine. Legend has it that the Aztec king Montezuma welcomed the Spanish explorer Hernando Cortes with a banquet that included drinking chocolate, having tragically mistaken him for a reincarnated deity instead of a conquering invader. Chocolate didn’t suit the foreigners’ taste buds at first—one described it in his writings as “a bitter drink for pigs”—but once mixed with honey or cane sugar, it quickly became popular throughout Spain.Word & Expression1. property1) n. 财产;性质,性能;所有权The property is set in a convenient location.这片房地产开发在一处交通便利的地方。2) 同义替换:belongings, goods, material goods, estate suitable 2. ritual1) ① n. 仪式;惯例;礼制② adj. 仪式的;礼节性的;例行的we still practice some of these rituals today.我们至今仍然遵循这些礼节。2) 同义替换:rite, ceremony, formality, custom,

habit, practice, routine; procedural, ceremonious, formal, customary, habitual, usual, normal 3. melancholy1)

① n. 忧郁, 悲哀② adj. 忧郁的, 悲伤的That image contributes to the strong feeling of melancholy that pervades this book.这样的画面渲染了书中弥漫着的强烈忧郁之感。2) 同义替换:sorrow, sad, miserable, gloomy, unhappy 4. a gourd of一瓢Native Americans would take a pouch of seeds and a gourd of water on their trips.美国的土著人在他们的旅程中会食用一袋这种种子和一瓢水。5. tingle1) ① vi. 感到刺痛;(耳朵等)鸣响② vt. 使激动;刺痛③ n. 刺痛感;激动;鸣响The crowd tingled with excitement.群众大为兴奋。2) 同义替换:prickle, sting, itch, prick 6. cheer up高兴起来, 振作起来He encouraged the family to cheer Up.他鼓励这个家庭振作起来。7. sample1) ① vt. 取样;抽样检查;尝试② n. 样品;样本;例子③ adj. 作为例子的;试样的,样品的A larger sample size yields more reliable data. 样本越大,得出的数据就越可靠。(yield v.产出)2) 同义替换:test, try, experiment, check out; example, model, trial 8. legend has it that传说,据传说Legend has it that there are lots of treasures on the treasure mountain.传说中的宝山上藏有很多财宝。9. banquet1) n. 宴

会, 盛宴A banquet was held in her honour. 为她设宴。(in one’s honor专门为了某人举办,为了纪念)2) 同义替换:feast, dinner, meal3) 搭配:banquet at public expenses 公款吃喝10. mistake1) ①n.错误;误解;误会;失误

② adj.错误;不正确;判断错误的;被误解的③ v. 弄错;误解;误会;误认I think you’re mistaken about the time.我想你弄错时间了。2) 同义替换:wrong, incorrect, false, erroneous, misguided, faulty, flawed, fallacious, inaccurate3) 搭配:① by mistake错误地;由于差错

② make a mistake犯错误11. reincarnate (认识即可)vt. 赋予新形体,使转世化身adj. 转世化身的Some people believe they may reincarnate in the form of an animal.有些人相信他们死後可能转生为动物。12. deity (认识即可)1) n. 神;神性Many animals were seen as the manifestation of a deity.许多动物被看作神的化身。2) diet n.饮食(注意拼写的区别) 13. invader1) n. 入侵者,侵略者;侵入

物The invaders sacked the city.侵略者把这座城市洗劫一空。(sack v.破坏)2) 同义替换: attacker, aggressor, trespasser, intruder, interloper suit 14. taste bud味蕾You need your taste bud to taste food.你需要味觉去品尝食物。参考译文:E. 玛雅人和阿兹特克人都认为可可豆具有神秘的甚至是神圣的特性,适合在诸如出生、结婚和死亡这些最神

圣的仪式上使用。根据克洛艾·杜特-鲁塞尔的《巧克力鉴赏家》一书所述,阿兹特克的被献祭者因极度抑郁而无法参加祭祀之舞时,人们就在他们被献祭之前给他们喝下一瓢巧克力(含有少许已故祭祀品的血),使他们振奋起来。F. 后来,欧洲人发现了美洲大陆,并品尝了当地的菜肴,至此加糖的巧克力才出现。据传说,阿兹特克国王蒙提祖马准备了一桌以巧克力为饮料的盛宴,为西班牙探险者埃尔南多·科尔特斯接风洗尘——国王不但没有把他当做前来征战的入侵者,反而可悲地误以为他是转世神灵。起初,外国人并不能接受巧克力的味道——有人在著作中把巧克力描述为“一种给猪喝的苦涩饮品”——不过,在添加了蜂蜜或蔗糖以后,巧克力饮料立刻红遍西班牙各地。GBy the 17th century, chocolate was a fashionable drink throughout Europe, believed to have nutritious, medicinal and even aphrodisiac properties. But it remained largely a privilege of the rich until the invention of the steam engine made mass production possible in the late 1700s. HIn 1828, a Dutch chemist found a way to make powdered chocolate by removing about half the natural fat (cacao butter) from chocolate liquor, pulverizing what remained and treating the mixture with alkaline salts to cut the bitter taste. His product became known as “Dutch cocoa,” and it soon led to the

creation of solid chocolate. The creation of the first modern chocolate bar is credited to Joseph Fry, who in 1847 discovered that he could make a moldable chocolate paste by adding melted cacao butter back into Dutch cocoa. By 1868, a little company called Cadbury was marketing boxes of chocolate candies in England. Milk chocolate hit the market a few years later, pioneered by another name that may ring a bell—Nestle.Word & Expression1. aphrodisiac (认识即可)adj. 引起性欲的n. 壮阳剂,春药2. privilege① n.荣幸;荣耀;特殊利益;优惠待遇② v. 给予特权;特别优待It is a great privilege to be attending this conference.参加这次会议是莫大的荣幸。3. mass production大量生产Scientists say if everything goes smoothly, the glass will be in mass production within a year.科学家称如果该项目进展顺利,一年内这种玻璃就可以投入大规模生产。4. liquor1) ① n. 酒,含酒精饮料;液体;烈酒;溶液② vi. 喝酒,灌酒③ vt. 使喝醉He keeps away from liquor and tobacco.他不喝酒, 不抽烟。2) 搭配:be in liquor喝醉5. pulverize1) vt. 将…弄碎,将…弄成粉末或尘埃;摧毁,粉碎He had a winning car and pulverized the opposition.他有一辆战无不胜的好车,从而击败所有对手。2) 同义替换:grind, crush,

mash, chop up, pound, thrash 6. alkaline(认识即

可)adj. [化]碱性的,碱的This plant prefers alkaline soil, though it will readily tolerate some acidity.这种植物在酸性土壤中也能生存,但硷性土壤更加适宜。7. lead to导致He said he was worried that jumping to conclusions would lead to widespread panic.他说,他担心直接下定论会引起全面恐慌。8. be credited to相信;把…归功于Your success should be credited to me.你的成功应该归功于我。9. moldableadj. 可模压的;适于模压的;可塑造的Manufacturers were starving for a better insulator that was easily moldable and inexpensive.厂商当时正在寻求一种易模塑、廉价的绝缘体。(starve for 渴望) 10. hit1) ① vt. 袭击;碰撞;打击;偶然发现;伤…的感情② vi. 打击;打;碰撞;偶然碰上③n. 打击;打;(演出等)成功;讽刺He hit the ball with authority.他熟练地击球。

2) 搭配:① hit the market上市, 冲击市场, 打入市场

② make a hit获得成功11. pioneer① n. 拓荒者; 开发者;先驱者; 创始者; 先锋② vt. 开拓, 开发, 创始He is a pioneer in modern medical practice.他是现代医学实践的先驱。12. ring a bell引起反应[共鸣];使人想起某事I can't remember anyone of that name; and yet somehow it seems to ring a bell.我记不得叫这个名字的人了,可又好像

能隐约回忆起来。参考译文:G.到17世纪时,巧克力成了风靡整个欧洲的时髦饮品。人们认为它有营养,能入药,甚至还能催情。但它仍旧是有钱人才能享用的奢侈品,直到18世纪末蒸汽机的发明使得大规模生产成为可能以后,这种情况才得以改善。H.1828年,一位荷兰化学家找到了制作巧克力粉的方法:他从巧克力饮料中去除了近一半的天然脂肪(即可可脂),然后把剩下的成分研磨成粉,并在其中添加碱盐以减轻苦涩味道。他的产品被称为“荷兰可可粉”,由此很快诞生了固态巧克力。第一条现代巧克力棒的产生应归功于约瑟夫·弗赖伊。1847年,弗赖伊发现,通过往荷兰可可粉中重新添加融化的可可脂,能够做出可塑形的糊状巧克力。到了1868年,一家名为“吉百利”的小公司开始在英国出售盒装巧克力糖果。几年以后,另一个令人耳熟的公司——雀巢——开发出的牛奶巧克力面市了。上期回顾:赏析新科学家第31期:“一带一路”带领中国开发能源市场

雅思阅读选择题解题技巧

雅思阅读选择题解题技巧 雅思阅读选择题解题技巧这篇*系统地给大家讲解一下雅思阅读当中选择题这种题型的有关知识点,其中包括雅思阅读选择题的题型要求和特点,做题步骤和解题技巧。下面就和大家分享,来欣赏一下吧。 雅思阅读选择题解题技巧 雅思阅读选择题解题技巧为大家带来雅思阅读中最常见的 一种题型之一——选择题的解题方法和技巧的总结。选择题是我们非常熟悉也是雅思阅读的高频常客之一。虽说选择题无论随便乱选一个选项都有25%的正确率,如果掌握了正确的做题方法和步骤,就有机会达到100%正确率。 Multiple Choice(选择题) 题型要求 这是一个传统题型,大家都很熟悉。但就是这种大家都熟悉的题型,IELTS考试也要弄出新花样:四选一和多选多两种。 四选一,选项肯定是四个。即要求从A、B、C、D四项中选择一个最符合题意的选项。

多选多,选项肯定是五个或五个以上,而正确答案的数目肯定在两个以上。 哪个更难呢?很多同学会好不犹豫地说是多选多。实际上,多选多很容易,是一种简单题型。它具有以下几个特点: (1) 正确答案的数目是已知的。在题目的要求中会告诉你要选出几个选项。题目要求中常WHICH FOUR,WHICH THREE 等字样。 (2) 答案在原文中是集中出现的,对应原文中的例举。找着一个答案,其余几个就在它的前后不远处。 我们举一个中文阅读的例子来说明。*如下: 帕金森症是一种顽症。它是由大脑中缺乏一种叫多巴胺的化学物质引起的。(后面删减100字)很多名人深受其苦。比如,我们的改革的总设计师邓小平、拳王阿里、以故数学家陈景润等等。(后面删减100字) 题目是:以下哪三个人得过帕金森症? A. 邓小平 B. 里根 C. 拳王阿里

2014年雅思阅读模拟试题及答案解析(6)

1. A European spacecraft took off today to spearhead the search for another "Earth" among the stars. 2. The Corot space telescope blasted off aboard a Russian Soyuz rocket from the Baikonur cosmodrome in Kazakhstan shortly after 2.20pm. 3. Corot, short for convection rotation and planetary transits, is the first instrument capable of finding small rocky planets beyond the solar system. Any such planet situated in the right orbit stands a good chance of having liquid water on its surface, and quite possibly life, although a leading scientist involved in the project said it was unlikely to find "any little green men". 4. Developed by the French space agency, CNES, and partnered by the European Space Agency (ESA), Austria, Belgium, Germany, Brazil and Spain, Corot will monitor around 120,000 stars with its 27cm telescope from a polar orbit 514 miles above the Earth. Over two and a half years, it will focus on five to six different areas of the sky, measuring the brightness of about 10,000 stars every 512 seconds. 5. "At the present moment we are hoping to find out more about the nature of planets around stars which are potential habitats. We are looking at habitable planets, not inhabited planets. We are not going to find any little green men," Professor Ian Roxburgh, an ESA scientist who has been involved with Corot since its inception, told the BBC Radio 4 Today programme. 6. Prof Roxburgh said it was hoped Corot would find "rocky planets that could develop an atmosphere and, if they are the right distance from their parent star,they could have water". 7. To search for planets, the telescope will look for the dimming of starlight caused when an object passes in front of a star, known as a "transit". Although it will take more sophisticated space telescopes planned in the next 10 years to confirm the presence of an Earth-like planet with oxygen and liquid water, Corot will let scientists know where to point their lenses.

2015年雅思阅读模拟试题及答案解析三

Time to cool it 1 REFRIGERATORS are the epitome of clunky technology: solid, reliable and just a little bit dull. They have not changed much over the past century, but then they have not needed to. They are based on a robust and effective idea--draw heat from the thing you want to cool by evaporating a liquid next to it, and then dump that heat by pumping the vapour elsewhere and condensing it. This method of pumping heat from one place to another served mankind well when refrigerators' main jobs were preserving food and, as air conditioners, cooling buildings. Today's high-tech world, however, demands high-tech refrigeration. Heat pumps are no longer up to the job. The search is on for something to replace them. 2 One set of candidates are known as paraelectric materials. These act like batteries when they undergo a temperature change: attach electrodes to them and they generate a current. This effect is used in infra-red cameras. An array of tiny pieces of paraelectric material can sense the heat radiated by, for example, a person, and the pattern of the array's electrical outputs can then be used to construct an image. But until recently no one had bothered much with the inverse of this process. That inverse exists, however. Apply an appropriate current to a paraelectric material and it will cool down. 3 Someone who is looking at this inverse effect is Alex Mischenko, of Cambridge University. Using commercially available paraelectric film, he and his colleagues have generated temperature drops five times bigger than any previously recorded. That may be enough to change the phenomenon from a laboratory curiosity to something with commercial applications. 4 As to what those applications might be, Dr Mischenko is still a little hazy. He has, nevertheless, set up a company to pursue them. He foresees putting his discovery to use in more efficient domestic fridges and air conditioners. The real money, though, may be in cooling computers. 5 Gadgets containing microprocessors have been getting hotter for a long time. One consequence of Moore's Law, which describes the doubling of the number of transistors on a chip every 18 months, is that the amount of heat produced doubles as well. In fact, it more than doubles, because besides increasing in number,the components are getting faster. Heat is released every time a logical operation is performed inside a microprocessor, so the faster the processor is, the more heat it generates. Doubling the frequency quadruples the heat output. And the frequency has doubled a lot. The first Pentium chips sold by Dr Moore's company,Intel, in 1993, ran at 60m cycles a second. The Pentium 4--the last "single-core" desktop processor--clocked up 3.2 billion cycles a second. 6 Disposing of this heat is a big obstruction to further miniaturisation and higher speeds. The innards of a desktop computer commonly hit 80℃. At 85℃, they

剑桥雅思口语真题解析

剑桥雅思口语真题解析 Part 1: 1.1姓名 1. What’s your full name? 2. Can I have your name, please? 3. Are there any special meanings of your name? 4. Do you like your name? Why? 5. Do Chinese people like changing their names? 6. What kind of people in China like changing their names? 7. Is there any rule for Chinese people giving names to their children? 1.2故乡 My hometown is Guangzhou. It is the capital of Guangdong province in the southwest of China. It is a large industrial city. It is close to Hong Kong so a lot of the industries involve trade and retail. It is also a finance area. The people in Guangzhou are very genial and helpful, also are very easy to get around. If you lose your way and ask someone, he will give you the direction immediately, he can also give you a hand if you are in trouble. By the year 2011, it is believed that my hometown Guangzhou has become the economic center of China. 2. Where is it located? 3. How about the climate in your hometown? Which season do you like? In my hometown Guangzhou, the four seasons are not evident, which only has spring and summer. It is too hot in the summer and it is also humid in the winter. I like summer better, for we will go swimming and start our outdoor activities in the summer, it gives us pretty environment, which full of various kinds of colors. Another reason is that it is suitable for traveling around. 4. How about the people in your hometown? The people in my hometown Guangzhou are very genial and helpful, also are very easy to get around. People will always give you a hand with things. If you lose your way and ask someone, he will give you the direction immediately, he can also give you a hand if you are in trouble. 5. What do most people do in your hometown? 6. Oh yes. Even though Guangzhou is very modern, it has some interesting temples and streets. There is one called the Temple of Six Banyan Trees and it was built about 1500 years ago. There is also a famous cultural and commercial street in Guangzhou called Beijing Road. In this street, you can not only see a historic exhibition about different years roadbed, which has more than thousand histories, but also has many business shops sale almost all kinds of things. Besides, you can taste traditional snacks and refreshments or experience temples with /unusual special architectural style nearby. Anyway, it is an interesting place so worth to visit! 7. How about the style of the building in your hometown? 8. What is one of the greatest changes having taken place over the years? 9. What problems still exist in your hometown? 10. How to improve the situation in your hometown? 11. Where is Chinese population mainly distributed? 12. What changes have occurred in people’s dwelling? 1.3学习 1. Are you an employee or a student? (Are you working or studying?) 2. What is your major?

剑桥雅思7阅读解析汇报test4

Question 1 答案:TRUE 关键词:large numbers of people, build the pyramids 定位原文: 第1段第2句: “The conventional picture is that…” 解题思路: 此题通过定位词可以迅速定位至首段第2句话,题干对文章定位句的概括性改写分析如下:generally believed — conventional picture, large numbers of people — tens of thousands of slaves. 因此答案很明显应该是TRUE。 Question 2 答案:FALSE 关键词:hieroglyph, Egyptian monument 定位原文: 首段第5句: “While perusing a book…” 解题思路: 此题定位词在文中原词出现,可以快速定位。文中定位句指出Clemmons是在一本关于埃及古迹的书中读到的象形文字信息,而题目却说她在一座埃及古迹的墙上发现了象形文字,显然题目与文章相悖,因此此题答案为FALSE。 Question 3 答案:NOT GIVEN 关键词:experiment, bird flight 定位原文: 无 解题思路: 题干的定位信息在文章中未出现,此题为最典型的“原文完全未提及型”,故答案为NOT GIVEN Question 4 答案: TRUE 关键词:theory 定位原文: 第4段首句:”Earlier this year...”今年早些时候,他们把Clemmons空头理论付诸实验 解题思路: 题目与文章完全相符,因此此题答案为TRUE Question 5

最新雅思阅读解题技巧方法——选择题

选择题解题技巧 一分类:四选一(单选),多选多, 主旨题 一单选题(得分题) 二顺序性:有序 三解题步骤 1.读题目和选项, 划定位词。 注意:1选项快看 2选项主要关注各项不同处(谓语就不同的话,主要关注谓语即可,宾语略看或不看. 另外,还要关注各项感情色彩的不同!!!) 2.复记题目和选项关键词 为毛? 因为若记得好,文中看到时能立马反映出,直选法,正确率高) (***小标题题,匹配题,选择三类看的内容多,不像填空判断摘要填空,只是一两句,所以要复记) 3.回原文定位考点。 4.比较原文与选项,确定答案. 注意:(**与原文用词太简单一致(尤其形容词动词)的要小心。 3. 正确选项多有同替。) 四直选法和排除法 直选法:看到与某选项含义接近的原文,直接选!(又快又准),不关注剩余项的对错和理由(每题四个点,时间不够的!) 排除法: 都没把握,才用排除法(排除毫无关系和冲突的)(比较费时间),排除很不靠谱的,剩下的是只能是答案. 五注意事项: ●选择题里常有些好定位的题(如明定/根据第五段),挑出来先做,不要按正常顺序做. ●题目不好定位时,选项中常有名定如大写,数字,用选项内容定位 ●避免根据自己的认知自行选择, 尽量在原文在找到考点,正确率高 ●选择题特点是阅读量大,关键是读题读文快,并尽量读一遍就理解 ●若这组题目都无明定,都不好定位,读2,3题关键词,一起定位,效率高(其他题型也是)●选择题正确答案是与原文最接近的一个,即使其他三个也与原文有关。 ●注意选项中是否有both…and…或者all of the above ,若有很可能选它们(出现不多)●注意题干中是否有EXCEPT字样 例如:Many cities are included in this program EXCEPT________

雅思阅读练习题及答案

雅思阅读练习题及答案 ★Next Year Marks the EU's 50th Anniversary of the Treaty A. After a period of introversion and stunned self-disbelief, continental European governments will recover their enthusiasm for pan-European institution-building in 2007. Whether the European public will welcome a return to what voters in two countries had rejected so short a time before is another matter. B. There are several reasons for Europe’s recovering self-confidence. For years European economies had been lagging dismally behind America (to say nothing of Asia), but in 2006 the large continental economies had one of their best years for a decade, briefly outstripping America in terms of growth. Since politics often reacts to economic change with a lag, 2006’s improvement in economic growth will have its impact in 2007, though the recovery may be ebbing by then. C. The coming year also marks a particular point in a political cycle so regular that it almost seems to amount to a natural law. Every four or five years, European countries take a large stride towards

雅思阅读判断题型解题方法

雅思阅读判断题型解题方法 雅思阅读板块题型多样,其中判断题是必考题型,本文以剑桥雅思阅读真题为例,和大家解析雅思阅读中判断题型的解题方法。 剑桥雅思阅读真题解析判断题型解题方法 一、判断题题干有表示比较关系的词,考生需注意题目重点考察比较关系。 常见的比较关系词: 比较级:more/ less /adj-er than… 同级比较:as…as…/the same as…/equal/ like 试题中若出现以上比较关系词,需标记题中的比较对象(A 、B),并明确比较逻辑(如A比B更聪明),即可快速完成审题。如: 39. It is easier to find meaning in the field of science than in the field of art. – Test 2, Cambridge IELTS 11 审题步骤: 1.确定比较对象:A – field of science (科学领域)、B – field of art (艺术领域) 2.确定比较逻辑:科学的含义比艺术的含义更容易被人们理解(easier to find meaning)。 除了上述较明显的比较关系词外,出题人还会使用较隐晦的表达阐述比较关系,用以干扰考生的判断。因此,在审题时还需注意下列

具有隐含比较关系的表达: prefer to… compare to/compare with/contrast similar to…/similarly superior to/inferior to unusual 同样,考生在判定题干存在比较关系后,需标记题中的比较对象并明确比较逻辑。如: 35. Teachers say they prefer suggestopedia to traditional approaches to language teaching. – Test 1, Cambridge 7 1.确定比较对象:A –suggestopedia(暗示教学)、B –traditional approaches(传统教学方法) 2.确定比较逻辑:暗示教学比传统教学方法更受老师喜欢(teachers say they prefer)。 二、借助以下2种解题思路辅助解题: 1.题干中A、B存在比较关系但原文A、B不存在比较关系时,答案应为未提及——NOT GIVEN。 先看个简单的例子: 题干:喜茶比星爸爸贵得多。 原文:我的意中人是个盖世英雄,有一天他会踏着七彩祥云,排

剑桥雅思9阅读解析test2

剑桥雅思9阅读解析test2

Passage1 Question 1 答案: H 关键词: national policy 定位原文: H段第1句“The New Zealand Government…” 解题思路: 这一段的首句就以一种叙事口吻向考生交代了新西兰全国上下正在开展的一场为残疾人服务 的战略,该句含义为“新西兰政府已经制定出一项‘新西兰残疾人事业发展战略’,并开始进入广泛咨 询意见的阶段。”另外,在该段其它语句中也提到the strategy recognises..., Objective 3...is to provide...等信息,非常符合题干中account一词的含义。 Question 2 答案: C 关键词: global team 定位原文: C段最后一句“The International Institute of…” 解题思路:这句含义为“在世界卫生组织的建议下,国际噪声控制工程学会(I-INCE)成立了一个国际工作小组来”,这句话中international能够对应题干中的global, 而working party能够对应team。这是对应关系非常明显的一道题目。 Question 3 答案: B 关键词: hypothesis, reason, growth in classroom noise 定位原文: B段第3句“Nelson and Soil have also suggested...” 解题思路:在该段首句中就出现了classroom noise这个词,因此该段有可能就是本题的对应段落。在接下来的叙述Nelson and Soil have also suggested...中,suggest一词能够对应题干中的hypothesis 后一句中的This all amounts to heightened activity and noise levels,与题干中的one reason相对应 Question 4

雅思考试阅读部分全解析

雅思考试阅读部分全解析 无论是A类还是G类, 雅思的阅读与国内\国际现今流行的各种重大考试有很大的区别。其广泛的选材范围、多样的出题形式、艰涩的段落和句法结构、冗长的篇幅和无处不在的生词对于考生的语言实力和解题技巧提出了严峻的考验。但是,回顾这么多年的考试历程,雅思并没有跳出语言测试的樊篱。换言之,雅思就是在有限的时间里测试考生的语言实力和应试技巧。 一、概述 I.文章的篇幅 长篇幅是雅思阅读文章的突出特点。每段文章至少700字以上,7、8个段落也算正常。 阅读目的就是为理解服务,应试型阅读就是为解题服务。雅思阅读中的题目虽然貌似复杂,其实归结起来无外乎主旨题与细节理解题。而解题的过程实际上是略读、扫读和细读这三大技巧的综合。雅思考试的阅读很有限,一个小时读三篇文章,每篇文章的阅读和解题时间非常短暂。因此,我们要坚持两点论和重点论相结合的原则,使用略读的技巧在短时间内抓住文章的中心思想、段落大意和长句的要旨。然后,仔细阅读文章之后的题目,并从中找出关键词或词组,同时迅速扫读,确定题目答案在原文中所对应的大致范围。然后对相关语段进行仔细阅读。这样,可以避免或减少对文章中干扰信息的阅读,从而节省时间,提高阅读效率。 II.文章的选材范围 剑桥大学考试委员会秉承剑桥大学的作风,奉行高等教育的精英主义理念,反复强调非专业原则和国际化两条原则,体现考试的公平和公正、严肃和全面的特点,所选的文章大多源于世界主流媒体,如Economist , Financial Times,Guardian;政府各部门的社会发展报告,联合国机构的年度报告;某些著名的协会杂志(带有官方色彩),如Info;英国及欧洲的专业杂志如Arts Management,Arts Education等;70%的自然科学文章选自National Geographic, New Scientist, Science, Popular立场Science和Nature杂志;80%的重大事件(非政治经济),重大发明都选自美国国家地理杂志(National Geographic) 雅思是一种语言考试,不是专业测试。因此,为了让不同政治经济体制,不同肤色,不同文化背景的人能平等参与,法律及专业性较强的医学,生物学,哲学,文学,艺术等的文章已经不再作为其考查范围。以下几个方面的内容经常作为考点出现:世界范围的就业状况;世界范围内的教育状况,经济发展的问题,

雅思阅读选择题四种解题技巧

雅思阅读选择题四种解题技巧 雅思阅读选择题总会用各个选项来迷惑人,下面教育优选来为大家分享雅思阅读选择题的解题技巧 1. 如果一个选项合乎题意,还要看其它选项中是否有both…and、all of theabove 的字样。 我们举一个中文阅读的例子: 原文:如果你随便停车,要罚你款,还要把你的车拖走。 题目:如果你随便停车,将: A. 被罚款 B. 你的车被拖走 C. 没事儿 D. both被罚款and你的车被拖走答案:D 如果选项中有一个是all of the above,它是正确选项的可能性很大。Both…and是正确选项比all of the above小一些。总之,如果一个选项合乎题意,不要马上选。看一眼其余选项中是否有both…and,all of theabove的字样。 2. 注意题干中是否有not,except的字样。 题干中有这些词时,通常是将它们大写并使用黑体,特别醒目。如果不注意看,必然答错题。

如前面的关于帕金森症的中文阅读文章,可能出一道四选一的题目: 题目:下面的人得过帕金森症EXCEPT A. 邓小平 B. 里根 C. 拳王阿里 D. 陈景润答案:B 3. 干扰选项的特点 做选择题的过程就是与干扰选项做斗争的过程。清楚干扰选项的特点,就能做到百战百胜。干扰选项特征如下: A. 无 选项中所讲的内容在原文中根本不存在,或找不到语言依据。要注意,答题的唯一依据是原文,不能凭借自己的知识或主观想象。 B. 反 与原文相矛盾的选项。这时要注意题干或原文中是否有NOT、EXECPT等词,也要注意反义词。 C. 满 含有“绝对意义”的词汇如must、always、all、will的选项,一般为错误选项。选项中含有“相对意义”的词汇如can、may、sometimes、some、not always,一般为正确答案。也就是说,越是模棱两可、含含糊糊,越可能是正确答案,因为它适用的范围更广。这条规律的适用性很强,实践证明它的准确率在90%以上。 D. 偏 似是而非,与原句部分相似的选项。这是不太容易排除的。

雅思阅读模拟试题及答案解析(2)

雅思阅读模拟试题及答案解析(2)

Next Year Marks the EU's 50th Anniversary of the Treaty A. After a period of introversion and stunned self-disbelief,continental European governments will recover their enthusiasm for pan-European institution-building in . Whether the European public will welcome a return to what voters in two countries had rejected so short a time before is another matter. B. There are several reasons for Europe’s recovering self-confidence. For years European economies had been lagging dismally behind America (to say nothing of Asia), but in the large continental economies had one of their best years for a decade, briefly outstripping America in terms of growth. Since politics often reacts to economic change with a lag,’s improvement in economic growth will have its impact in , though the recovery may be ebbing by then. C. The coming year also marks a particular point in a political cycle so regular that it almost seems to amount to a natural law. Every four or five years, European countries take a large stride towards further integration by signing a new treaty: the Maastricht treaty in 1992, the Treaty of Amsterdam in 1997, the Treaty of Nice in . And in they were supposed to ratify a European constitution, laying the ground for yet more integration—until the calm rhythm was rudely shattered by French and Dutch voters. But the political impetus to sign something every four or five years has only been interrupted,not immobilised, by this setback. D. In the European Union marks the 50th anniversary of another treaty—the Treaty of Rome, its founding charter. Government leaders have already agreed to celebrate it ceremoniously, restating their commitment to “ever closer union” and the basic ideals of European unity. By itself, and in normal circumstances, the EU’s 50th-birthday greeting to itself would be fairly meaningless, a routine expression of European good fellowship. But it does not take a Machiavelli to spot that once governments have signed the declaration (and it seems unlikely anyone would be so uncollegiate as to veto

2017年雅思考试阅读练习试题附答案

2017年雅思考试阅读练习试题附答案 人的知识和人的力量这两件东西是结合为一体的;工作的失败都起于对因果关系的无知。以下是小编为大家搜索整理2017年雅思考试阅读练习试题附答案,希望能给大家带来帮助!更多精彩内容请及时关注我们应届毕业生考试网! Volatility Kills You should spend about 20 minutes on Question 1-13 which are based on Reading Passage below. A Despite gun battles in the capital of Chad, rioting in Kenya and galloping inflation in Zimbabwe, the economics of sub-Saharan Africa arc, as a whole, in better shape than they were a few years ago. The World Bank has reported recently that this part of the continent experienced a respectable growth rate of 5.6 percent in 2006 and a higher rate from 1995 to 2005 than in previous decades. The bank has given a cautious assessment that the region may have reached a turning point. An overriding question for developmental economists remains whether the upswing will continue so Africans can grow their way out of a poverty that relegates some 40 percent of the nearly 744 million in that region to living on less than a dollar a day. The optimism, when inspected more closely, may be short-lived because of the persistence of a devastating pattern of economic volatility that has lingered for decades. B “In reality, African countries grow as fast as Asian countries and other developing countries during the good times, but afterward they see growth collapses,” comments Jorge Arbache, a senior World Bank economist. “How to prevent collapses may be as important as promoting growth.” If these collapses had not occurred, he observes, the level of gross domestic product for each citizen of the 48 nations of sub-Saharan Africa would have been a third higher. C The prerequisite to prevent the next crash are not in place, according to a World Bank study issued in January. Is Africa's Recent Growth Robust? The growth period that began in 1995, driven by a commodities boom spurred in particular by demand from China, may not be sustainable, because the economic fundamentals—new investment and the ability to stave off inflation, among other factors—are absent. The region lacks the necessary infrastructure that would encourage investors to look to Africa to find the next Bengaluru (Bangalore) or Shenzhen, a November report from the bank concludes. For sub-Saharan countries rich in oil and other resources, a boom period may even undermine efforts to institute sound economic practices. From 1996 to 2005, with growth accelerating, measures of governance—factors such as political stability, rule of law, and control of corruption—actually worsened, especially for countries endowed with abundant mineral resources, the January report notes. D Perhaps the most incisive analysis of the volatility question comes from Paul Collier, a longtime specialist in African economics at the University of Oxford and author of the recent book The Bottom Billion. He advocates a range of options that the U.S. and other nations could adopt when formulating policy toward African countries. They include revamped trade measures, better-apportioned aid and sustained military intervention in certain instances, to avert what he sees as a rapidly accelerating divergence of the world’s poorest, primarily in Africa, from the rest

相关文档