成人高考考试题库_网考网(Netkao.com)

{{B}}Directions: {{/B}}There are 20 blanks in the following passage, and for each blank there are 4 choices markedA,B,C、andD、at the end of the passage. You should choose ONE、answer that best fits into the passage. Then blacken the corresponding letter on theAnswer Sheet.

Thirty years ago, most teenagers had bicycles, but now they are comparatively rare.{{U}} (56) {{/U}}, motor scooters(小型摩托车)are much more common.{{U}} (57) {{/U}}, this may seem to be a sign of progress but{{U}} (58) {{/U}}the change is not necessarily for the better.
It is easy to see why young people prefer scooters.{{U}} (59) {{/U}}, they are much faster and do not require much physical effort;{{U}} (60) {{/U}}, you can take a passenger with you on the pil-lion(后座)seat behind;{{U}} (61) {{/U}}, they give young people a feeling of independence, be-cause they can travel further and impress their friends.{{U}} (62) {{/U}}, the disadvantages are equally obvious.{{U}} (63) {{/U}}first sight, scooters are more expensive to buy and to maintain, and{{U}} (64) {{/U}}those under 16 are not allowed to have them.{{U}} (65) {{/U}}, greater freedom brings danger because speed encourages young people to take risks and as a result scooters are in-volved{{U}} (66) {{/U}}more accidents, and the accidents are{{U}} (67) {{/U}}more serious.
Bicycles are safer and easier to control. Years ago, teenagers had more experience with them because they{{U}} (68) {{/U}}to ride as young children, and consequently knew what they were capable of.{{U}} (69) {{/U}}, many young people overestimate what a scooter can do and pre-tend it has the power of a motorcycle.{{U}} (70) {{/U}}, the fact is that bicycles are not very safe{{U}} (71) {{/U}}in cities these days because there are more cars and drivers are not used to them and do not make allowances for them.
{{U}} (72) {{/U}}, those who are old enough to ride scooters naturally prefer them. Those who are too young or cannot afford to buy a scooter probably find bicycles glow and uncomforta-ble {{U}} (73) {{/U}}, and riding bicycles requires{{U}} (74) {{/U}}experience of traffic than before. On bal-ance, the change has been for the worse,{{U}} (75) {{/U}}for the 13-and 14-year-olds, but the only safe solution would be to have special lanes(车道)for cyclists.

A．or rather
B．by comparison
C．in contrast
D．after all

Afterabusydayofworkandplay,thebodyneedst

After a busy day of work and play, the body needs to rest. Sleep is necessary for good health.During this time, the body recovers from the activities of the previous day. The rest that you get while sleeping enables your body to prepare itself for the next day.There are four levels of sleep, each being a little deeper than the one before.As you sleep, your muscles relax little by little. Your heart beats more slowly, and your brain slows down.After you reach the fourth level, your body shifts back and forth from one level of sleep to the other. Although your mind slows down, from time to time you will dream. Scientists who study sleep state that when dreaming occurs, your eyeballs begin to move more quickly (although your eyelids are closed). This stage of sleep is called REM, which stands for rapid eye movement. If you have trouble falling asleep, some people recommend breathing very slowly and very deeply. Other people believe that drinking warm milk will help make you drowsy. There is also an old suggestion that counting sheep will put you to sleep. The word "drowsy" in the last paragraph means________.
A、sick
B．stand up
C．asleep
D．a little sleepy

{{B}}PassageThree{{/B}}Imagineyou’reatap

{{B}}Passage Three{{/B}}

Imagine you’re at a party full of strangers. You’re nervous. Who are these people How do you start a conversation Fortunately, you’ve got a thing that sends out energy at tiny chips in everyone’s name tag (标签). The chips send back name, job, hobbies, and the time available for meeting—whatever. Making new friends becomes simple.
This hasn’t quite happened in real life.But the world is already experiencing a revolution using RFID、technology.
An RFID、tag with a tiny chip can be fixed in a product, under your pet’s skin, even under your own skin. Passive RFID、tags have no energy source-batteries because they do not need it. The energy comes from the reader, a scanning device (装置), that sends out energy (for example, radio waves) that starts up the tag immediately.
Such a tag carries information specific to that object, and the data can be updateD、Already, RFID、technology is used for recognizing each car or truck on the road and it might appear in your passport.Doctors can put a tiny chip under the skin that will help locate and obtain a patient’s medical records.At a nightclub in Paris or in New York the same chip gets you into the VIP (very important person) section and pays for the bill with the wave of an arm.
Take a step back: 10 or 12 years ago, you would have heard about the coming age of computing. One example always seemed to surface: Your refrigerator would know when you needed to buy more milk. The concept was that computer chips could be put everywhere and send information in a smart network that would make ordinary life simpler.
RFID、tags are a small part of this phenomenon. "The world is going to be a loosely coupled set of individual small devices, connected wirelessly," predictsDr. J. Reich. Human right supporters are nervous about the possibilities of such technology. It goes too far tracking school kids through RFID、tags, they say. We imagine a world in which a beer company could find out not only when you bought a beer but also when you drank it.And how many beers.Accompanied by how many biscuits.
When Marconi invented radio, he thought it would be used for ship-to-shore communication. Not for pop musiC、Who knows how RFID、and related technologies will be used in the future. Here’s a wild guess.. Not for buying milk.

The article is intended to ______.A．warn people of the possible risks in adopting RFID、technology
B．explain the benefits brought about by RFID、technology
C．convince people of the uses of RFID、technology
D．predict the applications of RFID、technology

再别康桥》是的代表作()A、徐志摩B、余光中C、郭沫若D、舒婷

再别康桥》是的代表作() A、徐志摩 B、余光中 C、郭沫若 D、舒婷

ItisnaturaltoassumethatastheSungrowsolde

It is natural to assume that as the Sun grows older, and uses up its hydrogen fuel-which it is now doing at the spanking rate of half a billion tons a second-it will become steadily colder and redder.

乔木树种的生活型为高位芽植物。 ( )

以王维、孟浩然为代表的诗派是()A.山水田园B.咏物C.隐逸D.边塞

以王维、孟浩然为代表的诗派是() A、山水田园 B、咏物 C、隐逸 D、边塞

{{B}}Directions:{{/B}}Thereare20blanksin

{{B}}Directions: {{/B}}There are 20 blanks in the following passage, and for each blank there are 4 choices markedA,B,C、andD、at the end of the passage. You should choose ONE、answer that best fits into the passage. Then blacken the corresponding letter on theAnswer Sheet.

Thirty years ago, most teenagers had bicycles, but now they are comparatively rare.{{U}} (56) {{/U}}, motor scooters(小型摩托车)are much more common.{{U}} (57) {{/U}}, this may seem to be a sign of progress but{{U}} (58) {{/U}}the change is not necessarily for the better.
It is easy to see why young people prefer scooters.{{U}} (59) {{/U}}, they are much faster and do not require much physical effort;{{U}} (60) {{/U}}, you can take a passenger with you on the pil-lion(后座)seat behind;{{U}} (61) {{/U}}, they give young people a feeling of independence, be-cause they can travel further and impress their friends.{{U}} (62) {{/U}}, the disadvantages are equally obvious.{{U}} (63) {{/U}}first sight, scooters are more expensive to buy and to maintain, and{{U}} (64) {{/U}}those under 16 are not allowed to have them.{{U}} (65) {{/U}}, greater freedom brings danger because speed encourages young people to take risks and as a result scooters are in-volved{{U}} (66) {{/U}}more accidents, and the accidents are{{U}} (67) {{/U}}more serious.
Bicycles are safer and easier to control. Years ago, teenagers had more experience with them because they{{U}} (68) {{/U}}to ride as young children, and consequently knew what they were capable of.{{U}} (69) {{/U}}, many young people overestimate what a scooter can do and pre-tend it has the power of a motorcycle.{{U}} (70) {{/U}}, the fact is that bicycles are not very safe{{U}} (71) {{/U}}in cities these days because there are more cars and drivers are not used to them and do not make allowances for them.
{{U}} (72) {{/U}}, those who are old enough to ride scooters naturally prefer them. Those who are too young or cannot afford to buy a scooter probably find bicycles glow and uncomforta-ble {{U}} (73) {{/U}}, and riding bicycles requires{{U}} (74) {{/U}}experience of traffic than before. On bal-ance, the change has been for the worse,{{U}} (75) {{/U}}for the 13-and 14-year-olds, but the only safe solution would be to have special lanes(车道)for cyclists.

A．too
B．neither
C．as well
D．either

{{B}}Passage8{{/B}}Inancienttimesthemost

{{B}}Passage 8{{/B}}

In ancient times the most important examinations were spoken, not written. In the schools of ancient Greece and Rome, testing usually consisted of reading poetry aloud or giving speeches.
In theEuropean universities of the MiddleAges, students who were working for advanced degrees had to discuss questions in their field of study with people who had made a special study of the subject. This custom exists today as part of the process of testing candidates for the doctor’s degree.
Generally, however, modern examinations are written. The written examination, where all students are tested on the same question, was probably not known until the nineteenth century. Perhaps it came into existence with the great increase in population and the development of modern industry.A、room full of candidates for a state examination, timed exactly by electric clocks and carefully watched over by managers, resembles a group of workers at an automobile factory. Generally, during examinations teachers and students are expected to act like machines.
One type of test is sometimes called an "objective" test. It is intended to deal with facts, not personal opinions. To make up an objective test the teacher writes a series of questions, each of which has only one correct answer. (8) {{U}}Along with each question the teacher writes the correct answer and also three statements that look like correct answers to students who have not learned the material properly.{{/U}}

In the MiddleAges students______.A．took objective tests
B．specialized in one subject
C．were timed by electric clocks
D．never wrote exams

次生演替的结果是群落复生。 ( )

这首诗太难，这个孩子领会不了。

下列各项中，不属于腹部体表标志的是( ) A.麦氏点 B.耻骨联合 C.脐 D.

下列各项中，不属于腹部体表标志的是(　) A、麦氏点 B、耻骨联合 C、脐 D、髂嵴 E、腹直肌外缘

{{B}}Directions:{{/B}}Thereare20blanksin

{{B}}Directions: {{/B}}There are 20 blanks in the following passage, and for each blank there are 4 choices markedA,B,C、andD、at the end of the passage. You should choose ONE、answer that best fits into the passage. Then blacken the corresponding letter on theAnswer Sheet.

Thirty years ago, most teenagers had bicycles, but now they are comparatively rare.{{U}} (56) {{/U}}, motor scooters(小型摩托车)are much more common.{{U}} (57) {{/U}}, this may seem to be a sign of progress but{{U}} (58) {{/U}}the change is not necessarily for the better.
It is easy to see why young people prefer scooters.{{U}} (59) {{/U}}, they are much faster and do not require much physical effort;{{U}} (60) {{/U}}, you can take a passenger with you on the pil-lion(后座)seat behind;{{U}} (61) {{/U}}, they give young people a feeling of independence, be-cause they can travel further and impress their friends.{{U}} (62) {{/U}}, the disadvantages are equally obvious.{{U}} (63) {{/U}}first sight, scooters are more expensive to buy and to maintain, and{{U}} (64) {{/U}}those under 16 are not allowed to have them.{{U}} (65) {{/U}}, greater freedom brings danger because speed encourages young people to take risks and as a result scooters are in-volved{{U}} (66) {{/U}}more accidents, and the accidents are{{U}} (67) {{/U}}more serious.
Bicycles are safer and easier to control. Years ago, teenagers had more experience with them because they{{U}} (68) {{/U}}to ride as young children, and consequently knew what they were capable of.{{U}} (69) {{/U}}, many young people overestimate what a scooter can do and pre-tend it has the power of a motorcycle.{{U}} (70) {{/U}}, the fact is that bicycles are not very safe{{U}} (71) {{/U}}in cities these days because there are more cars and drivers are not used to them and do not make allowances for them.
{{U}} (72) {{/U}}, those who are old enough to ride scooters naturally prefer them. Those who are too young or cannot afford to buy a scooter probably find bicycles glow and uncomforta-ble {{U}} (73) {{/U}}, and riding bicycles requires{{U}} (74) {{/U}}experience of traffic than before. On bal-ance, the change has been for the worse,{{U}} (75) {{/U}}for the 13-and 14-year-olds, but the only safe solution would be to have special lanes(车道)for cyclists.

A．for
B．in
C．at
D．to

Telecommutingworkerssoonlearnthatitisalm

Telecommuting workers soon learn that it is almost impossible to concentrate on work and care for a young child at the same time.

Havingbeenfoundguilty,themanwasgivenasev

Having been found guilty, the man was given a severe ________ by the judge.
A、service
B．sentence
C．crime
D．crisis

Ofallthewebsites,onethathasattractedatte

Of all the websites, one that has attracted attention recently is myspace, com. Most of this attention has come from the media and tells every reason (56) the website should be (57) The threat of Internet predators (窃掠者) is indeed a tough reality, (58) shutting down the site is not the answer. If myspace, com (59) shut down, another site would quickly (60) its place. Therefore, the right way is to teach teens how to use the site safely and educate them (61) who may be predators and how to (62) them.
The key to (63) safe on the Internet is to make sure that your profile (个人资料) is secure. The (64) way is to change the privacy setting on your profile to "private", which protects your information (65) only the people on your friend list can view it.Although this is (66) , it is not perfect. Predators can find ways to view your profile if they really want to, (67) through backing in (黑客入侵) or figuring out their way onto your friend list. Thus, you should never post too much personal (68) Some people actually post their home and school addresses, date to birth, and so on, often (69) predators know exactly where they will by and (70) .
The most information that is safe is your first name and province.Anything more is basically (71) a predator into your life.
Another big problem is photos. I suggest (72) skipping photos and never posting a photo of a friend online without his or her (73) .
Most important, never, (74) any circumstances, agree to a real-life meeting with anyone you meet online, (75) how well you think you know this person. There are no guarantees that they have told the truth.
A、whatB、how
C、why
D、which

数学与文化① 齐民友讨论文化问题，可以列举文化的各个部门：科学、文学、艺术、政

数学与文化① 齐民友讨论文化问题，可以列举文化的各个部门：科学、文学、艺术、政治、宗教、伦理……请注意，数学也是文化的一部分。数学和任何其他学科不同，它几乎是任何科学所不可缺少的。没有任何一门科学能像它那样泽被②天下。它是现代科学技术的语言和工具，这一点大概没有什么人会怀疑了。它的思想是许多物理学说的核心，并为它们的出现开辟了道路，了解这一点的人就比较少了。它曾经是科学革命的旗帜，现代科学之所以成为现代科学，第一个决定性的步骤是使自己数学化。为什么会这样?因为数学在人类理性思维活动中有一些特点。这些特点的形成离不开各个时代的总的文化背景，同时又是数学影响人类文化最突出之点。我这里并不想概括什么是数学文化，而只是就它对人类精神生活影响最突出之处提出一些看法。诚然，其他的学科也可能有这些特点，但大抵是与受数学的影响分不开的。首先，它追求一种完全确定、完全可靠的知识。在这本小书里可以看到许多被吸引到数学中来的人正是因为数学有这样的特点。例如说，欧几里得平面③上的三角形内角和为l80°，这绝不是说“在某种条件下”，“绝大部分”三角形的内角和“在某种误差范围内”为l80°，而是在命题的规定范围内，一切三角形的内角和不多不少为l80°。产生这个特点的原因可以由其对象和方法两个方面来说明。从希腊的文化背景中形成了数学的对象并不只是具体问题，数学所探讨的不是转瞬即逝的知识，而是某种永恒不变的东西。所以，数学的对象必须有明确无误的概念，而且其方法必须由明确无误的命题开始，并服从明确无误的推理规则，借以达到正确的结论。通过纯粹的思维竟能在认识宇宙上达到如此确定无疑的地步，当然会给一切需要思维的人以极大的启发。人们自然会要求在一切领域中都这样去做。正是因为这样，而且也仅仅因为这样，数学方法既成为人类认识方法的一个典范，也成为人在认识宇宙和人类自己时必须持有的客观态度的一个标准。就数学本身而言，达到数学真理的途径既有逻辑的方面也有直觉的方面，但就其与其他科学比较而言，就其影响人类文化的其他部门而言，它的逻辑方法是最突出的。这个方法发展成为人们常说的公理方法。迄今为止，人类知识还没有哪一个部门应用公理方法得到如数学那样大的成功。但是，如果到今天某个知识部门还是只有论断而没有论据，只是一堆相互没有逻辑联系的命题，前后又无一贯性，恐怕是不会有人接受的了。每个论点都必须有根据，都必须持之有理。除了逻辑的要求和实践的检验以外，无论是几千年的习俗、宗教的权威、皇帝的敕令、流行的风尚统统是没有用的。这样一种求真的态度，倾毕生之力用理性的思维去解开那伟大而永恒的谜…宇宙和人类的真正面目是什么?一一是人类文化发展到高度的标志。这个伟大的理性探索是数学发展必不可少的文化背景，反过来也是数学贡献于文化最突出的功绩之一。数学作为人类文化组成部分的另一个特点是它不断追求最简单的、最深层次的、超出人类感官所及的宇宙的根本。所有这些研究都是在极抽象的形式下进行的。这是一种化繁为简以求统一的过程。从古希腊起，人们就有一个信念：冥冥之中最深处宇宙有一个伟大的、统一的、而且简单的设计图，这是一个数学设计图。在一切比较深入的科学研究后面，必定有一种信念驱使我们。这个信念就是：世界是合理的，简单的，因而是可以理解的。对于数学研究则还要加上一点：这个世界的合理性，首先在于它可以用数学来描述。在古代，这个信念有些神秘色彩。可是发展到现代，科学经过了多次伟大的综合。多少随意地列举一些：欧几里得的综合;牛顿①的综合;麦克斯韦②的综合;爱因斯坦③的综合;量子物理的综合;计算机的出现，哪一次不是或多或少遵循这个信念?也许有例外：达尔文和孟德尔④，但是今天已经开始，人们在用数学去讨论物种的进化与竞争，讨论遗传的规律。人们会又一次看见宇宙的根本规律表现为一种抽象的、至少是数学味很重的设计图。这不是幻想而是现实。为什么DNA的双螺旋结构是在卡文迪什实验室⑤完成，受了研究分子结构的X射线衍射方法⑥那么多好处?难道看不出这也是一种把生命归结为最简单成分的不同位置、不同形式、不同数量而成的数学味很重的结构吗? 这种深层次的研究是能破除迷信的，它鼓励人们按照最深刻的内在规律来考虑事物。我们为世界图景的精巧和合理而欣喜而惊异。这种感情正是人类文化精神的结晶。数学正是在这样的文化气氛中成长的，而反过来推动这种文化气氛的发展。现在应该提出的问题是，对这样一种信念应该怎样去估价。是否还应该同时也看到它的不足的一面?从科学史看来，一直存在一种“还原”的倾向：把复杂的现象归结为一些最简单的最原始的因素的作用。物体分成了“质点”、“电荷”;分成了分子、原子、亚原子的粒子;生物分成了细胞，然后又是细胞核、细胞质、染色体、基因、核酸⑦……丰富无比、千差万别的世界的多样性似乎越来越被归纳为这些基本的成分或称为宇宙的砖石在数量上、形状上、结构上的差别，这当然是数学发挥作用的大好场所。同时也就产生了一种越来越深刻的疑问：大干世界真是这些最简单的成分叠加的吗?难道线性的叠加原理⑧竟是宇宙的最根本法则吗?由一堆砖石固然可以建成宏伟的纪念碑，却也可以搭起一座马棚，它们的区别究竟何在?可是，每一个从事数学研究的人仍然抱有下面说的信念：想解决这个更深刻的问题——我把它称为综合，而把那种还原的倾向称为分析——仍然要靠数学，当代数学的发展将越来越证实这一点。数学的再一个特点是它不仅研究宇宙的规律，而且也研究它自己。在发挥自己力量的同时又研究自己的局限性，从不担心否定自己，而是不断反思、不断批判自己，并且以此开辟自己前进的道路。它不断致力于分析自己的概念，分析自己的逻辑结构。它不断地反思：自己的概念、自己的方法能走多远?从希腊时代起，毕达哥拉斯①认为宇宙即数(他是指自然数)，可是遇到了无理数，后来的希腊人只好采用不可公度理论②，因为弄不清，就干脆不讲无理数，而讨论的线段长。希腊人甚至不讲数，使希腊数学与其他民族——例如中国——相比呈现了缺点。但即令如此，也要保持高度严整，而不允许采取折衷主义的态度。历史终于证明，正是希腊人开辟了研究无理数系的道路。他们研究数学，却同时考虑数学研究的对象是否存在。希腊人考虑数学对象的存在问题，把存在归结为可构造，然后就问： “用直尺与圆规经有限步骤去三等分任意角可能吗?”因为弄不清是否可能，即没有构造的方法以证明三等分角的存在，他们的几何学中干脆不讲一个角的三分之一，只讲平分线，从不讲角三分线。越向后面发展，数学就出现了越来越多的“不可能性”：X2+1=0不可能在实数域中求解，五次以上的方程不能用根式求解，平行线公理能不能证明?到20世纪初才知道是既不能证明又不能否证。大家都说，数学最需要严格性，数学家就要问什么叫严格性?大家都说，数学在证明一串串的定理，数学家就要问什么叫证明?数学越发展，取得的成就越大，数学家就越要问自己的基础是不是巩固。越是在表面上看来没有问题的地方，越要找出问题来。乘法明明是可以交换的，偏偏要研究不可交换的乘法。孟子自嘲地说：“予岂好辩哉，予不得已也!”③数学家只需要换一个字：“予岂好‘变’哉，予不得已也!”当然，任何科学要发展就要变。但是只是在与实际存在的事物、现象或实验的结果发生矛盾时才变。唯有数学，时常是在理性思维感到有了问题时就要变。而且，其他科学中“变”的倾向时常是由数学中的“变”直接或间接引起的。当然，数学中许多重要的变是由于直觉地感到有变的必要，感到只有变才能直视宇宙的真面目。但无论如何，是先从思维的王国里开始变，即否定自己。这种变的结果时常是“从一无所有之中创造了新的宇宙”。到了最后，数学开始怀疑起自己的整体，考虑自己的力量界限何在。大概是到了19世纪末年，数学向自己提出的问题是：“我真是一个没有矛盾的体系吗?我真正提供了完全可靠、确定无疑的知识吗?我自认为是在追求真理，可是‘真’究竟是指什么?我证明了某些对象的存在，或者说我无矛盾地创造了自己的研究对象，可是它们确实存在吗?如果我不能真正地把这些东西构造出来，又怎么知道它是存在的呢?我是不是一张空头支票，一张没有银行的支票呢?” 总之，数学是一株参天大树，它向天空伸出自己的枝叶，吸收阳光。它不断扩展自己的领地，在它的树干上有越来越多的鸟巢，它为越来越多的学科提供支持，也从越来越多的学科中吸取营养。它又把自己的根伸向越来越深的理性思维的土地中，使它越来越牢固地站立。从这个意义上来讲，数学是人类理性发展最高的成就(或者再加上“之一”二字更好一些)。数学深刻地影响人类精神生活，可以概括为一句话，就是它大大地促进了人的思想解放，提高与丰富了人类的整个精神水平。从这个意义上讲，数学使人成为更完全、更丰富、更有力量的人。爱因斯坦说的“得到解放”，其实正是这个意思。数学作为文化的一部分，其最根本的特征是它表达了一种探索精神。数学的出现，确实是为了满足人类的物质生活需要。可是，离开了这种探索精神，数学是无法满足人的物质需要的。“风调雨顺”是人类的物质生活不可少的。可是“巫师”的“祈雨”不也是满足需要的“手段”之一吗?人总有一个信念：宇宙是有秩序的，数学家更进一步相信，这个秩序是可以用数学表达的，因此人应该去探索这种深层的内在的秩序，以此来满足人的物质需要。因此，数学作为文化的一部分，其永恒的主题是“认识宇宙，也认识人类自己”。在这个探索过程中，数学把理性思维的力量发挥得淋漓尽致。它提供了一种思维的方法与模式，提供了一种最有力的工具，提供了一种思维合理性的标准，给人类的思想解放打开了道路。现在人人都知道实验方法的重要性，但是任何科学实验，离开了一定的逻辑思维，将是没有意义的。在伽利略①的时代就是这样，他的许多实验都是所谓理想实验，在近代就更是这样。在不同的时代有不同的文化，不同的民族有不同的文化。但是，数学在文化中的这一地位是不可移易的，而只有日益加强。有人认为数学是现代文化的核心或基石，始终处于中心地位，而影响到人类知识的一切部门。【学习提示】一、题解本文是一篇说明文，主要阐述了作为人类文化组成部分的数学的特点，读后可让我们感觉到数学对于人类的积极作用。二、思想内容本文论述了在各门科学数学化的趋势下，数学作为科学语言的重要地位，分析了数学能够影响人类精神生活的几个特点，即它的确定性、简单性、深刻性、抽象性和自我完善性，高度评价了数学在促进人类思想解放、使人类摆脱宗教迷信、不断创新等方面的历史功绩，把数学提到文化兴亡、民族盛衰的高度来认识。这些观点别开生面，令人耳目一新。三、段落层次文章分为三部分。第一部分(1自然段)，指出数学作为“现代科学技术的语言和工具”的重要地位。第二部分(2～5自然段)，分析数学影响人类生活的几个特点。第三部分(6～8自然段)，评价数学对人类精神生活的影响，指出数学表达了一种探索的精神，并从文化盛衰、民族兴亡的高度来认识数学。四、写作特点语言品味：①准确，本文语言正像数学那样逻辑谨严。 ②生动，力求用生动活泼的语言来阐释，使文章通俗易懂。 ③流畅，文章充满激情，笔力雄健，气势飞动，纵横驰骋，无所不宜。

{{B}}Directions:{{/B}}Thereare20blanksin

{{B}}Directions: {{/B}}There are 20 blanks in the following passage, and for each blank there are 4 choices markedA,B,C、andD、at the end of the passage. You should choose ONE、answer that best fits into the passage. Then blacken the corresponding letter on theAnswer Sheet.

Thirty years ago, most teenagers had bicycles, but now they are comparatively rare.{{U}} (56) {{/U}}, motor scooters(小型摩托车)are much more common.{{U}} (57) {{/U}}, this may seem to be a sign of progress but{{U}} (58) {{/U}}the change is not necessarily for the better.
It is easy to see why young people prefer scooters.{{U}} (59) {{/U}}, they are much faster and do not require much physical effort;{{U}} (60) {{/U}}, you can take a passenger with you on the pil-lion(后座)seat behind;{{U}} (61) {{/U}}, they give young people a feeling of independence, be-cause they can travel further and impress their friends.{{U}} (62) {{/U}}, the disadvantages are equally obvious.{{U}} (63) {{/U}}first sight, scooters are more expensive to buy and to maintain, and{{U}} (64) {{/U}}those under 16 are not allowed to have them.{{U}} (65) {{/U}}, greater freedom brings danger because speed encourages young people to take risks and as a result scooters are in-volved{{U}} (66) {{/U}}more accidents, and the accidents are{{U}} (67) {{/U}}more serious.
Bicycles are safer and easier to control. Years ago, teenagers had more experience with them because they{{U}} (68) {{/U}}to ride as young children, and consequently knew what they were capable of.{{U}} (69) {{/U}}, many young people overestimate what a scooter can do and pre-tend it has the power of a motorcycle.{{U}} (70) {{/U}}, the fact is that bicycles are not very safe{{U}} (71) {{/U}}in cities these days because there are more cars and drivers are not used to them and do not make allowances for them.
{{U}} (72) {{/U}}, those who are old enough to ride scooters naturally prefer them. Those who are too young or cannot afford to buy a scooter probably find bicycles glow and uncomforta-ble {{U}} (73) {{/U}}, and riding bicycles requires{{U}} (74) {{/U}}experience of traffic than before. On bal-ance, the change has been for the worse,{{U}} (75) {{/U}}for the 13-and 14-year-olds, but the only safe solution would be to have special lanes(车道)for cyclists.

A．have learnt
B．learn
C．learnt
D．had learnt

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