协会习题集上一道反应时间和初始浓度的关系的题？ 下列哪一个反应达到50%转化率的时间与初始浓度无关？ A 一级不可逆反应 B 一级可逆反应 C 二级不可逆反应 D 二级可逆反应 请问高手们这道题怎么个思路？？ 一级反应反应时间 不是 ln(C Ao -C A )=kt 吗 查看更多4个回答 . 3人已关注
2009年职称英语理工类C级完型填空精讲(2)？ 2009年职称英语理工类C级完型填空精讲(2) Breastfeeding Can Cut Cardiovascular Risk Breastfeeding can reduce the risk of a heart attack or stroke later in life and could prevent hundreds of __1__ of deaths each year，researchers said on Friday. Babies who are breastfed have fewer childhood infections and allergies and are less __2__ to obesity.British scientists have now shown that breastfeeding and slow growth in the first weeks and months of life has a protective effect __3 __ cardiovascular disease. “Diets that promote more rapid growth put babies at risk many years later in __4__ of raising their blood pressure，raising their cholesterol and increasing their tendency to diabetes and obesity—the __ 5 __ main risk factors for stroke and heart attack.”said Professor Alan Lucas of the Institute of Child Health in London. “Our evidence suggests that the reason why breast-fed babies do better is because they grow more __6 __ in the early weeks.” Lucas said the effects of breastfeeding on blood pressure and cholesterol later in life are greater than __7 __adults can do to control the risk factors for cardiovascular disease, other than taking drugs. An estimated 17 million people die of __8__ disease，particularly heart attack and strokes，each year，according to the World Health Organization. Lucas and his colleagues compared the health of 2 1 6 teenagers __9__as babies had either been breastfed or given different nutritional baby formulas’.They reported their__10__ in The Lancet medical journal. The teenagers who had been __11__had a 14一percent lower ratio of bad to good cholesterol and lower concentrations of a protein that is a marker for cardiovascular disease risk. The researchers also found that，__12 __ of the child’s weight at birth，the faster the infants grew in the early weeks and months of life，the __13__ was their later risk of heart disease and stroke.The effect was the __14__ for both boys and girls. “The more human milk you have in the newborn period，the lower your cholesterol level is， the lower your blood pressure is 1 6 years __15__，”Lucas said. 词汇： breastfeeding n.母乳喂养 cardiovascular adi.(病等)心血管的 allergy n.**反应;过敏性 cholesterol n. 胆固醇 diabetes n.糖尿病 obesity n.肥胖 marker n.标识，标志 注释： 1. nutritional baby formulas-有营养的配制婴儿喂养奶 练习： 1. A)hundreds B) thousands C) millions D) numbers 2. A)likely B) possible C) easy D) prone 3. A)against B) towards C) onto D) upon 4. A)forms B) cases C) terms D) places 5. A)two B) four C) three D) five 6. A)slowly B) quickly C) strongly D) obviously 7. A)which B) that C) something D) anything 8. A)various B) heart C) cardiovascular D) multiple 9. A)who B) such C) when D) taken 10. A)thoughts B) findings C) viewpoints D) breakthrough 11. A)surveyed B) interviewed C) handled D) breastfed 12. A)despite B) warning C) regardless D) needful 13. A) smaller B) greater C) faster D) worse 14. A) true B) right C) proper D) sam 15. A) later B) after C) late D) ago [NextPage] 答案与解析： 1.分析文章主题： Breastfeeding(母乳喂养)Can Cut(减少， 切，剪， 删减) Cardiovascular (心血管病的)Risk(风险) 文章主题词： breastfeed, cut, cardiovascular risk 2. 直接解题： 1. A)hundreds(数百) B) thousands(数千) C) millions(数百万) D) numbers(数字，数量， 号码) Breastfeeding(母乳喂养) can reduce(减少) the risk of a heart attack (心脏病发作)or stroke(中风) later(以后，后来) in life and could prevent(防止) hundreds of __1__ of deaths each year(每年)，researchers(研究者) said(说) on Friday(周五). 1. B分析：“hundreds of thousands of”是固定搭配，表示“成千上万”之意。 2. A)likely(可能的，很可能) B) possible(可能的) C) easy (容易的，舒适的，容易地，悠闲地 )D) prone(易于…的;倾向于…的) Babies who are breastfed(被母乳喂养的) have fewer childhood(孩童时期) infections(感染) and allergies(过敏) and are less(不太， 不) __2__ to obesity(肥胖). 2. D. 分析：因为空格后跟的是介词to ，能和介词to搭配使用的只有prone。 be prone to sth./ 倾向于...，容易... be likely/possible/ easy to do sth. The train is likely to be late. 补充： Easy come easy go 来得容易去得快。 3. A)against(相反，反对，靠着, 预防) B) towards(向，朝) C) onto(到...之上) D) upon(在...之上) British(英国的) scientists(科学家) have now shown(已经证明) that breastfeeding(母乳喂养) and slow (缓慢的)growth(生长， 种植) in the first weeks and months of life (在人生最初的几周和最初的几个月)has a protective(保护性的) effect __3 __ cardiovascular disease(心血管疾病). 3. A。分析：被选项是介词，因此注意搭配结构：effect通常是和介词 on搭配，但被选项中没有该介词，再注意搭配结构语意—“..心血管疾病具有保护性的影响”，因此判断A(预防)合适。 against: prep. 靠着, 反抗, 与…相反, 预防 lean against the tree斜靠着树 struggle against fate同命运抗争 protection against the cold预防感冒 4. A)forms(形状，构成， 形式， 表格) B) cases(案例， 情况， 病例) C) terms(学期，时期，条款，术语 ) D) places(地方，地点， 放置) 5. A)two(二) B) four(四) C) three(三) D) five(五) “Diets(饮食， 食物) that promote(促进) more rapid(迅速的) growth(生长，种植 ) put babies at risk (使...处于风险之中)many years later(以后， 更迟的) in __4__ of raising(提高， 举) their blood pressure(血压)，raising their cholesterol(胆固醇) and increasing(增加) their tendency(倾向) to diabetes(糖尿病) and obesity(肥胖)—the __ 5 __ main(主要的) risk factors(因素) for stroke and heart attack(心脏病发作).”said Professor(教授) Alan Lucas of the Institute(协会， 学院) of Child Health(健康) in London(伦敦). [NextPage] 4.C. 分析：与介词in 和of构成的固定搭配结构是： in case of(adv.假设, 万一) in terms of(adv.从...角度来讲;以...为单位; 根据按照, 在...方面, 就...来说) form和place不与in 和of形成固定搭配，但也可以形成临时性的搭配结构， 如： in the forms of.../以...的形式 in the places of.../在...的地方 因此判断C是答案。 5.B. 分析：前句中先后提到了血压、胆固醇、糖尿病和肥胖，共计四项。 6. A)slowly(缓慢地) B) quickly(很快地) C) strongly(坚固地，强烈地) D) obviously(明显地) “Our evidence(证据) suggests(暗示， 建议) that the reason(原因) why breast-fed (被母乳喂养的)babies do better(更好，更好的) is because(因为) they grow(生长) more __6 __ in the early(早期的， 早， 在初期) weeks.” 6.A.分析：A和B是正反项，重点注意。根据句意和前句中提到的内容 – 婴儿的头几周和头几个月发育缓慢，对预防心血管疾病有帮助， 由此判断A是答案。 7. A)which(哪个，哪个的) B) that(那个，引导从句) C) something(某事，某样东西) D) anything(任何事，任何东西) Lucas(卢卡斯) said the effects(影响，结果，实现) of breastfeeding on blood pressure and cholesterol(胆固醇) later in life (在一生中)are greater than (比...更大) __7 __adults(成年人) can do to control(控制) the risk factors for cardiovascular disease(心血管疾病), other than (除了)taking drugs(吃药). 7.D.分析：根据语法结构和句意判断D(任何事情)合适。 other than adv.不同于, 除了 8.A)various(各种各样的) B) heart(心脏，中心) C) cardiovascular(心脏血管的) D) multiple(多样的， 多重的) An estimated(被估计的) 17 million(百万) people die of __8__ disease(疾病)，particularly(尤其地，显著地) heart attack (心脏病发作)and strokes(中风)，each year，according to (根据)the World Health Organization(世界健康组织). 8.C. 分析：选项C是文章主题词， 因此该选项成为答案的可能性较大。空格后出现的是单数名词(disease)，因此排除修饰复数名词的形容词various(各种各样的)和multiple(多样的) ， 空格已经提到了“心脏病发作”，所以判断C(心血管的(疾病))出现在空格处合适。 9. A)who B) such C) when D) taken Lucas and his colleagues(同事) compared(比较) the health(健康) of 2 1 6 teenagers(青少年) __9__as babies(婴儿) had either (或者...或者...)been breastfed(曾经被母乳喂养) or given (曾经被给)different(不同的) nutritional(营养的) baby formulas(配方， 公式). 9.A.分析：空格处需要引导定语从句并修饰人的连接代词“who”。 10.A)thoughts(思想，想法， 想念)B) findings(发现， 研究结果) C) viewpoints(观点) D) breakthrough(突破) They reported(报告) their__10__ in The Lancet medical journal(医学杂志). 10.B.分析：上文提到了他们的调查研究，接下来应该出现的是他们的“研究结果”。 11.A)surveyed(调查，测量) B) interviewed(接见，会见) C) handled(处理，经销， 手柄) D) breastfed(母乳喂养) The teenagers(青少年) who had been __11__had a 14一percent(百分数) lower(较低的， 降低) ratio(比率) of bad(坏的，有害的) to(比) good(好的，善良的) cholesterol(胆固醇) and lower concentrations(积聚，集中) of a protein( 蛋白质 ) that is a marker(标记) for cardiovascular disease risk(风险). [NextPage] 11.D.分析：D是文章主题词，因此成为答案的可能性较大。从句意看， 该句讲述“曾经...的青少年中坏胆固醇与好胆固醇的比率要低14%，而且他们的蛋白质积聚也较低，而蛋白质的积聚是患心血管疾病风险高低的标志之一”。文章主题是“母乳喂养能够减少心血管疾病的危险”， 由此推测出现这种较好健康情况的人应该是“母乳喂养的人”， 因此D是答案。 12.A)despite (尽管) B) warning(警告) C) regardless(不顾，不管) D) needful(需要的) 13. A) smaller(更小的) B) greater(更大的) C) faster (更快的) D) worse(更糟糕的) The researchers(研究者) also(也) found(发现) that，__12 __ of the child’s weight(重量) at birth(出生时)，the faster (越快)the infants(婴儿) grew(生长) in the early(初期的， 早期的) weeks and months of life，the __13__ was their later(以后的，以后) risk of heart disease (心脏病)and stroke(中风). 12.C.分析：空格后出现了介词of， 因此首先排除A：despite是介词; 剩下的选项中能与介词of搭配使用的是B: warning of.../对...的警告; regardless of.../不管...，不顾....。根据空格所在的搭配结构“...of the child’s weight at birth/...孩子出生时的体重”判断C放入空格中意义通顺：不管孩子出生时的体重是多少。 13.B.分析：根据前文内容判断，婴儿前期生长越快，他们患心脏病的风险越大。 补充： the more ..., the more ... 越…越… e.g. The more angry(生气的) he became(变得), the more she laughed at (嘲笑)him. 他越生气，她就越笑他。 the more ..., the less ...越…越不… The more difficult(困难) the questions(问题) are, the less likely(可能的) I am to be able to (能够)answer(回答) them. 问题越困难，我就越不可能回答。 14. A) true(真实的，忠诚的) B) right(正确的， 恰当的， 右边,权利) C) proper(合适的，正确的) D) same(相同的， 同样的事物) The effect was the __14__ for both boys and girls. 14.D.分析：句意应该是“该影响对男孩，女孩都一样”所以D是答案。 15. A) later(以后的，以后) B) after(在...之后， 以...命名， 跟踪) C) late(迟的，晚期的，已故的， 晚) D) ago(以前的，以往的) “The more human milk (母乳)you have in the newborn(新生的) period(时期，周期)，the lower your cholesterol level(水平) is， the lower your blood pressure(血压) is 1 6 years __15__，”Lucas said(说). 15.A.分析：此处要表达的意思是：十六年之后。因此应选“later”。 2009年职称英语综合C阅读理解例题精讲(2) The only way is up Think of a modern city and the first image that come to mind is the skyline. It is full of great buildings, pointing like fingers to heaven. It is true that some cities don’t permit buildings to go above a certain height. But these are cities concerned with the past. The first thing any city does when it wants to tell the world that it has arrived is to build skyscrapers. When people gather together in cites, they create a demand for land. Since cities are places where money is made, that demand can be met. And the best way to make money out of city land is to put as many people as possible in a space that covers the smallest amount of ground. That means building upwards. The technology existed to do this as early as the 19th century. But the height of buildings was limited by one important factor. They had to be small enough for people on the top floors to climb stairs. People could not be expected to climb a mountain at the end of their journey to work, or home. Elisha Otis, a US inventor, was the man who brought us the lift – or elecator, as he preferred to call it. However, most of the technology is very old. Lifts work using the same pulley system the Egyptians used to create the Pyramids. What Otis did was attach the system to a steam engine and develop the elevator brake, which stops the lift falling if the cords that hold it up are broken. It was this that did the most to gain public confidence in the new invention. In fact, he spent a number of years exhibiting lifts at fairgrounds, giving people the chance to try them before selling the idea to architects and builders. A lift would not be a very good theme park attraction now. Going in a lift is such an everyday thing that it would juts be boring. Yet psychologists and others who study human behavior find lifts fascinating. The reason is simple. Scientists have always studied animals in zoos. The nearest they can get to the that with humans is in observing them in lifts. “It breaks all the usual conventions about the bubble of personal space we carry around with us – and you just can’t choose to move away.”says workplace psychologist, Gray Fitzgibbon. Being trapped in this setting can create different types of tensions, he says. Some people are scared of them. Others use them as an opportunity to get close to the boss. Some stand close to the door. Others hide in the corners. Most people try and shrink into the background. But some behave in a way that makes others notice them. There are a few people who just stand in a corner taking notes. Don’t worry about them. They are probably from a university. 1. “...these are cities concerned with the past”in the first paragraph refer to cities that ___. A) are worried about their past. B) Have a glorious past to be proud of. C) Want to maintain their traditional image. D) Are very interested in their own history. 2. The difficulty in constructing tall buildings in the 19th century lies in ___. A) the shortage of money B) the lack of a device to carry people upward C) the backward technology D) mountains taking up land space 3. When Otis came up with the idea of a lift, ___. A) he sold it to the architects and builders immediately. B) The Egyptians used it to build the Pyramids. C) It was accepted favorably by the public. D) Most people had doubt about its safety. 4. Which of the following best describes the experience of going in a lift now? A) Fascinating B) Uninteresting C) Frightening D) Exciting 5. Psychologists find the lift a good place where they can study human behavior because ___. A) here humans behave the way animals do B) people in a lift are all scared C) here some people take noted D) in a lift the bubble of personal space breaks [NextPage] 答案与解析： 1.分析文章标题：The only(唯一的， 仅仅) way(道路，方法) is up(向上，向北方) Think of a modern city and the first image that come to mind is the skyline. It is full of great buildings, pointing like fingers to heaven. It is true that some cities don’t permit buildings to go above a certain height. But these are cities concerned with the past. The first thing nay city does when it wants to tell the world that it has arrived is to build skyscrapers. When people gather together in cites, they create a demand for land. Since cities are places where money is made, that demand can be met. And the best way to make money out of city land is to put as many people as possible in a space that covers the smallest amount of ground. That means building upwards. The technology existed to do this as early as the 19th century. But the height of buildings was limited by one important factor. They had to be small enough for people on the top floors to climb stairs. People could not be expected to climb a mountain at the end of their journey to work, or home. Elisha Otis, a US inventor, was the man who brought us the lift – or elevator, as he preferred to call it. However, most of the technology is very old. Lifts work using the same pulley system the Egyptians used to create the Pyramids. What Otis did was attach the system to a steam engine and develop the elevator brake, which stops the lift falling if the cords that hold it up are broken. It was this that did the most to gain public confidence in the new invention. In fact, he spent a number of years exhibiting lifts at fairgrounds, giving people the chance to try them before selling the idea to architects and builders. A lift would not be a very good theme park attraction now. Going in a lift is such an everyday thing that it would just be boring. Yet psychologists and others who study human behavior find lifts fascinating. The reason is simple. Scientists have always studied animals in zoos. The nearest they can get to the that with humans is in observing them in lifts. “It breaks all the usual conventions about the bubble of personal space we carry around with us – and you just can’t choose to move away.”says workplace psychologist, Gray Fitzgibbon. Being trapped in this setting can create different types of tensions, he says. Some people are scared of them. Others use them as an opportunity to get close to the boss. Some stand close to the door. Others hide in the corners. Most people try and shrink into the background. But some behave in a way that makes others notice them. There are a few people who just stand in a corner taking notes. Don’t worry about them. They are probably from a university. 推测文章标题的内容可能为“只能乘坐电梯向上” 2.直接解题： 1. “...these are cities(城市) concerned with (关心)the past(过去)”in the first paragraph(段) refer to (指，提到，查阅)cities that ___. A are worried about (担心)their past. B. have a glorious(光荣的，显赫的) past to be proud of(以...为自豪， ). C. want to maintain(保持， 维修， 主张) their traditional(传统的) image(形象， 图像). D. are very interested in (对...感兴趣)their own(自己的) history(历史). 1. C. 细节题。 问题问“第一段中提到的‘这些是关注过去的城市’指的是什么城市? ”。首先找到出现在问题句引号中的这个句子： Think of a modern city and the first image that come to mind is the skyline. It is full of great buildings, pointing like fingers to heaven. It is true(真实的， 忠诚的) that some cities don’t permit(允许) buildings(建筑物) to go above(超出， 在...之上) a certain(一定的) height(高度).But these some cities are cities concerned with the past. The first thing any city does when it wants to tell(告诉) the world(世界) that it has arrived is to build skyscrapers. 从以上的答案相关句可知关注过去的城市不允许建筑物超出一定得高度， 由此可以推断出这样的城市希望保持其传统的城市形象。 2. The difficulty(困难) in constructing(建造) tall(高的) buildings(建筑物) in the 19th century(世纪) lies in (在于...)___. A. the shortage(缺乏， 不足) of money B. the lack of (缺少...)a device(装置， 设备) to carry(携带， 运输) people upward(向上) C. the backward(向后的， 落后的) technology(技术) D. mountains(山) taking up (拿起, 开始从事, 占据)land(土地， 国家) space(空间) [NextPage] 2.B. 细节题。 利用问题句中的特征结构the 19th century作为答案线索，同时利用被选项中出现的细节信息结构(A：money, C: backward technology, D: mountains)共同作为答案线索， 在文章中查找答案相关句：顺着上一题的答案位置往下查找： Think of a modern city and the first image that come to mind is the skyline. It is full of great buildings, pointing like fingers to heaven.(第一题答案相关句) It is true that some cities don’t permit buildings to go above a certain height. But these are cities concerned with the past. The first thing any city does when it wants to tell the world that it has arrived is to build skyscrapers. When people gather together in cites, they create a demand for land. Since cities are places where money is made, that demand can be met. And the best way to make money out of city land is to put as many people as possible in a space that covers the smallest amount of ground. That means(意味着) building(修建) upwards(向上). The technology existed(存在) to do this as early as(早在...) the 19th century. But the height(高度， 海拔) of buildings was limited by(被...限制) one important (重要的)factor(因素). They had to be small(小的) enough(足够) for people on the top floors(顶层) to climb(爬， 攀登) stairs(楼梯). People could not be expected(被期望) to climb a mountain at the end of (在...结束的时候)their journey(旅程) to work, or home. 第3段中的答案相关句说：早在19世纪建造高楼的技术已经存在，限制楼高的因素只有一个，那就是人们下班后不想像爬山那样去爬楼梯， 这说明当时还没有找到把人送往高处的办法。 3. When Otis(奥迪斯) came up with (提出)the idea(想法) of a lift(电梯), ___. A. he sold it to the architects(建筑师) and builders(施工人员， 营造商) immediately(立刻). B. The Egyptians(埃及人) used it to build(修建) the Pyramids(金字塔). C. It was accepted (被接受)favorably(顺利地) by the public(公众). D. Most people had doubt(怀疑) about (对...的怀疑)its safety(安全). 3.D. 细节题。 利用问题句中的特征词Otis及被选项中的细节信息词及特征词(A：architects, builders; B: Egyptians, Pyramids)共同作为答案线索， 在文章中查找答案相关句： Think of a modern city and the first image that come to mind is the skyline. It is full of great buildings, pointing like fingers to heaven. It is true that some cities don’t permit buildings to go above a certain height. But these are cities concerned with the past. The first thing any city does when it wants to tell the world that it has arrived is to build skyscrapers. When people gather together in cites, they create a demand for land. Since cities are places where money is made, that demand can be met. And the best way to make money out of city land is to put as many people as possible in a space that covers the smallest amount of ground. That means building upwards. (第2题答案相关句)The technology existed to do this as early as the 19th century. But the height of buildings was limited by one important factor. They had to be small enough for people on the top floors to climb stairs. People could not be expected to climb a mountain at the end of their journey to work, or home. Elisha Otis, a US inventor, was the man who brought(带来， 引起) us the lift – or elevator, as he preferred to call it. However, most of the technology is very old. Lifts work using the same pulley(滑轮) system(系统) the Egyptians used to create(创造， 造成) the Pyramids. What Otis did was attach the system to a steam engine and develop the elevator brake, which stops the lift falling if the cords that hold it up are broken. It was this that did the most to gain public confidence in the new invention. In fact, he(指代Otis) spent(花(时间，金钱)) a number of(大量的) years exhibiting(展出) lifts at fairgrounds(露天市场，游乐场), giving people the chance(机会) to try them before selling(卖) the idea to architects (建造师)and builders(营造商). 答案相关句说：Otis在游乐场里让大家试乘了几年后才把这个想法出售给建筑师和营运商。这说明刚开始人们还是对电梯的安全性心存顾虑。 4. Which of the following (下列)best describes(描述) the experience(经历，经验) of going in a lift now? A. Fascinating(迷人的) B. Uninteresting(没有意思的， 令人厌倦的) C. Frightening(令人恐惧的) D. Exciting(令人兴奋的) 4.B. 细节题。 顺着上一题的答案位置往下查找答案相关句： Think of a modern city and the first image that come to mind is the skyline. It is full of great buildings, pointing like fingers to heaven. It is true that some cities don’t permit buildings to go above a certain height. But these are cities concerned with the past. The first thing any city does when it wants to tell the world that it has arrived is to build skyscrapers [NextPage]. When people gather together in cites, they create a demand for land. Since cities are places where money is made, that demand can be met. And the best way to make money out of city land is to put as many people as possible in a space that covers the smallest amount of ground. That means building upwards. The technology existed to do this as early as the 19th century. But the height of buildings was limited by one important factor. They had to be small enough for people on the top floors to climb stairs. People could not be expected to climb a mountain at the end of their journey to work, or home. Elisha Otis, a US inventor, was the man who brought us the lift – or elecator, as he preferred to call it. However, most of the technology is very old. Lifts work using the same pulley system the Egyptians used to create the Pyramids. What Otis did was attach the system to a steam engine and develop the elevator brake, which stops the lift falling if the cords that hold it up are broken. It was this that did the most to gain public confidence in the new invention.(第3题答案相关句) In fact, he spent a number of years exhibiting lifts at fairgrounds, giving people the chance to try them before selling the idea to architects and builders. A lift would not be a very good theme park attraction now. Going in a lift is such(如此的) an everyday(日常的，平常的) thing that it would just(仅仅，非常，恰好) be boring(令人感到厌倦的). Yet psychologists and others who study human behavior find lifts fascinating. The reason is simple. Scientists have always studied animals in zoos. The nearest they can get to the that with humans is in observing them in lifts. 答案相关句说“乘电梯也成了再普遍不过的事情， 以至于乘坐电梯也变得有些令人感到厌倦”。 5. Psychologists(心理学家) find(发现) the lift a good place where they can study(学习) human behavior(行为) because(因为) ___. A. here humans behave(举止) (in)the way animals(动物)do B. people in a lift are all scared(吓坏了) C. here some people take notes(记笔记) D. in a lift the bubble(泡沫， 空想) of personal space (个人空间)break(破裂， 违反，打破) 5. D. 细节题。利用问题句中的细节信息词(psychologists, human behavior)及 Think of a modern city and the first image that come to mind is the skyline. It is full of great buildings, pointing like fingers to heaven. It is true that some cities don’t permit buildings to go above a certain height. But these are cities concerned with the past. The first thing any city does when it wants to tell the world that it has arrived is to build skyscrapers. When people gather together in cites, they create a demand for land. Since cities are places where money is made, that demand can be met. And the best way to make money out of city land is to put as many people as possible in a space that covers the smallest amount of ground. That means building upwards. The technology existed to do this as early as the 19th century. But the height of buildings was limited by one important factor. They had to be small enough for people on the top floors to climb stairs. People could not be expected to climb a mountain at the end of their journey to work, or home. Elisha Otis, a US inventor, was the man who brought us the lift – or elecator, as he preferred to call it. However, most of the technology is very old. Lifts work using the same pulley system the Egyptians used to create the Pyramids. What Otis did was attach the system to a steam engine and develop the elevator brake, which stops the lift falling if the cords that hold it up are broken. It was this that did the most to gain public confidence in the new invention. In fact, he spent a number of years exhibiting lifts at fairgrounds, giving people the chance to try them before selling the idea to architects and builders. A lift would not be a very good theme park attraction now.(第4题答案相关句)Going in a lift is such an everyday thing that it would juts be boring. Yet (然而)psychologists and others who study human behavior find(发现) lifts fascinating(迷人的) . The reason is simple(简单的). Scientists have always studied animals in zoos(动物园). The nearest they can get to(开始， 到达) that with humans is in observing(观察， 遵守) them in lifts. “It breaks(打破) all the usual(通常的) conventions(规定，习俗) about the bubble (幻想)of personal space we carry(携带)around with us – and you just can’t choose to(决定) move away(离开). ”says workplace(工作场所) psychologist, Gray Fitzgibbon. Being trapped in this setting can create different types of tensions, he says. Some people are scared of them. Others use them as an opportunity to get close to the boss. Some stand close to the door. Others hide in the corners. Most people try and shrink into the background. But some behave in a way that makes others notice them. There are a few people who just stand in a corner taking notes. 答案相关句说：人们想要享有私人空间的要求在电梯里成了幻想，这为心理学家提供了一个研究在这种情况下人的行为的难得的机会。 2009 年职称英语理工类C级完型填空精讲(1) Singing Alarms Could Save the Blind If you cannot see, you may not be able to find your way out of a burning building ---- and that could be fatal. A company in Leeds could change all that ___1__ directional sound alarms capable if guiding you to the exit. Sound Alert, a company ___2___ the University of Leeds, is installing the alarms in a residential home for ___3__ people in Sommerset and a resource centre for the blind in Cumbria. ___4___ produce a wide range of frequencies that enable the brain to determine where the ___5__ is coming from. Deborah Withington of Sound Alert says that the alarms use most of the frequencies that can be ___6___by humans. “It’s a burst of white noise __7___ people say sounds like static on the radio,”she says. “Its life-saving potential is great.” She conducted an experiment in which people were filmed by thermal—imaging cameras trying to find their way out of a large __8___ room. It __9___ them nearly four minutes to find the door __10____ a sound alarm, but only 15 seconds with one. Withington studies how the brain __11____sounds at the university. She says that the __12___ of a wide band of frequencies can be pinpointed more easily than the source of a narrow band. Alarms ___13____ the same concept have already been installed on emergency vehicles. The alarms will also include rising or falling frequencies to indicate whether people should go up __14___ down stairs. They were __15__ with the aid of a large grant from British Nuclear Fuels. 1. A. without B. with C. having D. selling 2. A. run by B. changed by C. decorated by D. criticized by 3. A. slow B. deaf C. blind D. lame 4. A. Alarms B. Alarm C. The alarm D. The alarms 5. A. noise B. sound C. music D. bell 6. A. watched B. produced C. learnt D. heard 7. A. where B. what C. that D. how 8. A. smoked B. smoke-filled C. filled with smoke D. smoke-filling 9. A. has taken B. takes C. took D. will take 10. A. on B. near C. without D. from 11. A processes B. produces C. possesses D. proceeds 12. A. feature B. quality C. diagram D. source 13. A. basis on B. base on C. basing on D. based on 14. A. or B. and C. but D. otherwise 15. A. developed B. determined C. discovered D. delivered 解析标题： Singing(唱歌的) Alarms(警报器)Could(能够) Save(挽救) the Blind(定冠词 + 形容词，表示一类人，盲人) 文章精读： 1>. If you cannot see(看见), you may not be able to find(找到) your way out of(出来) a burning(正在着火的) building(大楼) ---- and that could be(可能是) fatal(致命的). 2>. A company in Leeds(英国利兹市) could change(改变) all(所有的) that(代词，指前一句所表达的内容) ___1__ directional(定向的) sound alarms(声音警报器) capable of(有能力的) guiding(引导) you to the exit(出口). A. without B. with C. having D. selling 分析：通过阅读我们可以看出，空格后是一种装置，用它来改变当火灾发生时找不到出口的危险境况，所以要表达“用。。。。装置”意思的只能用介词with，带着、带有。本句的意思是：利兹市一家公司发明的一种可指方向的声音警报器能引导你到出口。 3>. Sound Alert(声音警报器), a company(逗号前面是公司名字) ___2___ the University of Leeds(利兹大学), is installing (安装)the alarms in a residential home(收容所) for ___3__ people in Sommerset and a resource centre(资源中心) for the blind (盲人)in Cumbria. A. run(经营) by B. changed(改变) by C. decorated(装修) by D. criticized(批评) by 分析：我们知道Sound Alert是一家公司的名字，从语意上判断应该是由某人经营，因此选择答案A较为合适。 [NextPage] 3. A. slow慢的 B. deaf聋的 C. blind瞎的 D. lame瘸的 分析：这篇文章的核心内容就是有关盲人警报器的，而且后半句也提到a resource centre(资源中心) for the blind (盲人)，所以顺理成章地得出结论应是C。 4>. ___4___ produce(产生) a wide range(广的范围) of frequencies(频率) that (引导定语从句)enable(使。。。能够) the brain to determine(决定) where the ___5__ is coming from. 4. A. Alarms B. Alarm C. The alarm D. The alarms 分析：我们知道该空的名词应出现在前文，上一句就提到Sound Alert, is installing the alarms in a residential home。。。，所以这里所要填的词也应该是the alarms,选择答案D。 5. A. noise噪音 B. sound声音 C. music音乐 D. bell铃 分析：句子前半句是说a wide range(广的范围) of frequencies(频率)，所以发出的应是sound,因此答案选B。 5>. Deborah Withington(人名) of Sound Alert says that the alarms use(使用) most of(大多数的) the frequencies that can be ___6___by humans(人). 6. A. watched观看 B. produced 产生 C. learnt学习 D. heard听到 分析：文章一直在讨论警报器、声音，因此很容易推断应该是被人听到。 6>. “It’s a burst(突然发出的) of white noise(连续而均匀的声音) __7___ people say sounds like static(静电噪音) on the radio(收音机里), ”she says. “Its life-saving(挽救生命的) potential(潜力) is great.” 7. A. where B. what C. that D. how 分析：A、B、D都不能构成语意上的连贯，而只有C，构成一个句型，强调句，it’s ….that ….这句话强调的是主语。去掉it’s…that，剩下的完整句子就是：A burst of white noise，people say(插入语)，sounds like static on the radio。 7>. She conducted(进行) an experiment(实验) in which(引导定语从句，在这项实验中) people were filmed(被拍摄) by thermal—imaging(热效应成像) cameras(照相机) trying to find their way out of (找到从。。。出去的路)a large __8___ room. A. smoked烟熏的 B. smoke-filled C. filled with smoke D. smoke-filling使。。。烟火弥漫的 分析：从上下文可以看出，是一个定语修饰room，表示“充满了烟火的房间” 答案A，D意思不吻合，C作为定语，位置不应放在room前，应放后面。只有B才符合句子。 8>. It __9___ them nearly(几乎) four minutes to find the door __10____ a sound alarm, but only 15 seconds(秒) with one. 9. A. has taken B. takes C. took D. will take 分析：显然，这个空是考察常用句型：it takes / took sb some time to do sth.关键是确定动词时态，从前面看都是过去时态，所以选择C。 10. A. on B. near C. without D. from 分析：逗号后面的one应该是指a sound alarm，从连词but可以推断，前后应是意思相反，后面已有了with, 那么前句应是without, 所以选择C。读读意思很通顺。 9>. Withington studies how(如何) the brain(大脑) __11____sounds at the university. A processes(处理) B. produces(产生) C. possesses(拥有) D. proceeds(前进) 分析：句子主语是the brain应和“处理”构成主谓关系，而其它动词均不合适，所以选择A。 10>. She says that the __12___ of a wide band of frequencies(波段宽的频率) can be pinpointed(精确地确定) more easily than the source of a narrow band(窄波段). 12. A. feature特征 B. quality质量、素质 C. diagram图解 D. source来源 分析：解题关键是要看出句子中主要结构是more…than, 后面出现核心词the source, 所以可以推断得出结论，前面的名词也应是source.这样符合比较级用法，用来进行比较的事物必须具有可比性。所以选D。 [NextPage] 11>. Alarms ___13____ the same concept(观念、概念) have already been installed(已经被安装) on emergency vehicles(急救车). A. basis on B. base on C. basing on D. based on 分析：Alarms是主语，have already been installed是谓语，所以要填的动词应该是分词形式，做定语，所以四个答案只有D可能, be based on以。。。为基础。 12>. The alarms will also include(包括) rising (上升)or falling(下降) frequencies to indicate(指示) whether (是否)people should go up __14___ down stairs. A. or B. and C. but D. otherwise 分析：根据前半句的rising or falling frequencies，可以看出这句话也应该填连接词or, 表示或者。 13>. They were __15__ with the aid of a large grant from British Nuclear Fuels. A. developed B. determined C. discovered D. delivered 分析：主语they 代指the alarms, 后半句是说这种设备得到大笔资助。根据上下文，资助的目的是为了开发，所以应该选A。 查看更多3个回答 . 4人已关注
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