题目
题型：不详难度：来源：
Mr.Johns was given a piece of asbestos which had been found in Italy． He experimented with the material and then showed its surprising powers to his customers. After putting on a pair of asbestos gloves, which looked much like ordinary work gloves, he took red-hot coals from the fireplace and played with them in his hands.How astonished the customers were to discover that he was not burned at all．You can well imagine that he had increasing business in asbestos roofing materials． However, because it was very expensive to transport them from Italy to the United States, Mr.Johns sent out a young scientist to seek a source nearer home. This young man found great vein（岩脉）, in the province of Quebec in Canada．
Ever since 1881 Quebec has led the world in the production of this unusual mineral, which is made up of magnesium, silicon, iron, and oxygen．When it is mined, the asbestos is heavy, just as you would expect a mineral to be．When it is separated, a strange thing happens: the rock breaks down into fine, soft, soapy fibres．
Scientists do not know why the rock can be separated easily into threads, but they have found thousands of uses of this fireproof material, of the so-called “cloth of stone”．
小题1:Which title best expresses the main idea of this passage?
| A．Asbestos mined in Canada | B．Fireproof matter |
| C．A “wonder” mineral | D．A new roofing material |
| A．going into roofing business | B．carrying asbestos from Italy |
| C．sending a trained scientist | D．showing the use of asbestos gloves |
| A．It is like thread． | B．It feels soapy． |
| C．It burns easily． | D．It is unusually heavy． |
| A．show the need for more scientists |
| B．compare asbestos with other minerals |
| C．increase the sales of asbestos |
| D．present facts about asbestos |
答案
小题1:C
小题2:D
小题3:A
小题4:D
解析
试题分析：本文讲述了尽管人类早就几百年前就知道石棉，可是真正的在北美开采是在160年前。短文介绍了耐火材料石棉在北美的开采过程及它的神奇耐火作用
小题1:标题归纳题。根据短文主要介绍了石棉的神奇作用。故选C。
小题2:细节理解题。根据After putting on a pair of asbestos gloves, …took red-hot coals from the fireplace and played with them in his hands 可推知，他是用当场演示的方法来推销他的产品的。故答案为D。
小题3:推理判断题。根据When it is separated, a strange thing happens; the rock breaks down into fine, soft, soapy fibres(纤维)及Scientists do not know why the rock can be separated easily into thread 可以断定答案为A。
小题4:推理判断题。根据从短文中可以看出来作者写这篇文章只不过陈述事实而已。故选D。
点评：标题是文章中心思想的精炼表达，多为词组或短语，涵盖性强。做这类题目时，要在阅读全文的基础上，以文章话题为核心，通过比较选项的概括性或 覆盖面，得出正确的标题。正确标题的归纳范围要恰如其分，避免过于具体或断章取义。错误的干扰往往是局部信息，以事实细节替代概括大意。
核心考点
试题【Although man has known asbestos （石棉） for many hundreds of years, it was not unti】；主要考察你对题材分类等知识点的理解。[详细]
举一反三
The new technology ,developed at OSU, can now produce 10 to 50 more times the electricity, per volume, than most oilier approaches using microbial fuel cells,and 100 times more electricity than some.
Researchers say this could eventually change the way that wastewater is treated all over the world, replacing the widely used “activated sludge (泥浆) ” process that has been in use for almost a century. The new approach would produce significant amounts of electricity while effectively cleaning the wastewater,
“If this technology works on a commercial scale the way we believe it will ,the treatment of wastewater could be a huge energy producer, not a huge energy cost.” said Hong Liu ，an associate professor in the OSU Department of Biological and Ecological Engineering. “This could have an impact around the world, save a great deal of money, provide better water treatment and promote energy sustainability.”
The biodegradable (能降解的）characteristics of wastewater, if developed to their full potential, could theoretically provide many times the energy that is now being used to process them, with no additional greenhouse emissions.
OSU researchers reported several years ago on the promise of this technology, but at that time the systems in use produced far less electrical power. With new concepts, the technology can now produce more than two kilowatts per cubic meter of liquid reactor volume.
The new system also works better than an alternative approach to creating electricity from wastewater, based on anacrobic (臭氧的）digestion that produces methane (甲烷）.It treats the wastewater more effectively, and doesn’t have any of the environmental drawbacks of that technology, such as production of possible release of methane, a significant greenhouse gas.
小题1:Which of the following best expresses the main idea of the passage?
| A．The treatment of wastewater is a huge energy cost. |
| B．Wastewater is being treated differently over the world. |
| C．Waste treatment plants have found a new way to power themselves. |
| D．Microbial fuel cells will produce more electricity from wastewater. |
| A．It can produce 100 times more electricity than any approach used today. |
| B．Through it more electricity can be created and water can be cleaned better. |
| C．It has already changed the way that wastewater is treated all over the world |
| D．It has opened the door to put microbial fuel cells to productive use. |
A. Supportive. B. Critical. C Unconcerned. D. Curious.
小题4:According to the last paragraph, why does the new system work better than the alternative approach?
| A．Because it is co-friendly and treats wastewater more effectively. |
| B．Because it can make full use of anaerobic digestion producing methane. |
| C．Because it may produce less methane than the alternative approach. |
| D．Because it can produce 10 times the energy than the alternative approach. |
It has long been known that meat of fruit can be kept fresh for long periods by freezing; in ancient China, for example, food was stored with ice to keep it fresh. This method could also be useful for preserving humans.
However, most living beings that exist under warm conditions die when frozen. This is because of the harmful effects of freezing ice crystals(晶体), which not only are larger than the volume(体积) of the water originally in the cells, but also form sharp cutting shapes that harm the cells.
In the 1940s Dr B.J. Luyet and a group of scientists in England were working on the problem of freezing cells without damaging them. Since the harm caused by ice crystals was the main cause of damage, Luyet suggested removing some or all of the water from the cells before freezing them.
Using living cells form chicken, Luyet and his assistants discovered that they could partly dry the chicken cells, using a mixture of the white part of an egg and glycerin (丙三醇). Some success was obtained. The chicken cells were dried, frozen for a period of time, and then carefully unfrozen. Almost all the cells recovered when they reached normal temperatures.
Since then, the cooling of whole animals to a temperature far below freezing point for later unfreezing has become more of a possibility, and the glycerin method would probably be used to accomplish this. When this can be done completely and successfully, science will have moved much closer to its aim of freezing and storing incurable patients until the day they can be cured.
小题1:What does the passage mainly talk about?
| A．Easy but practical ways to remove water from living cells. |
| B．The possibility of preserving human bodies by freezing. |
| C．The practice of preserving food by freezing. |
| D．The harmful effects of freezing. |
| A．has already been realized |
| B．was invented in ancient China |
| C．has its roots in the way of storing food |
| D．is widely accepted by the scientific world |
| A．is harmful to living cells |
| B．is the best way of preserving food |
| C．reduces the volume of water in living cells |
| D．is a way of removing water from living cells |
| A．It is impossible to have whole animals frozen. |
| B．It remains unknown how to unfreeze frozen animals. |
| C．Freezing incurable patients for later treatment is still an idea. |
| D．The glycerin method has already been adopted to treat patients. |
An ability to tell family from strangers is well known in animals, allowing them to cooperate and share resources, but plants may possess similar social skills, scientists believe.
Susan Dudley and Amanda File of McMaster University in Ontario, Canada, report they have demonstrated for the first time that plants can recognize their kin.
This suggests that plants, though lacking recognition and memory, are capable of complex social interactions.
“Plants have this kind of hidden but complicated social life，” Dudley said.
The study found plants from the same species of beach-dwelling wildflower grew aggressively alongside unrelated neighbors but were less competitive when they shared soil with their families.
Sea rocket, a North American species, showed stronger and healthier root growth when planted in pots with strangers than when raised with relatives from the same maternal(母系的) family, the study found.
This is an example of kin selection, a behavior common in animals in which closely related individuals take a group approach to succeeding in their environment, the researchers said.
Kin selection also applies to competition, because if family members compete less with each other, the group will do better overall. “Everywhere you look, plants are growing right up next to other plants，” Dudley said，“ Usually it’s a case of each plant for itself. But sometimes those plants are related, and there are benefits to not wasting resources on being competitive, and there is not really a cost to not being competitive as long as your neighbor is also not being competitive.”
Learning and memory appear to be important for kin recognition in animals, but this isn’t an option for plants, she noted.
Some researchers speculate(猜测) that plants communicate through their roots, identifying themselves using tiny chemical signatures specific to each plant’s family.
小题1:What’s the main idea of the message?
| A．Studies find plants can recognize, communicate with relatives. |
| B．Kin selection is important for plants. |
| C．Animals can recognize and memorize their relatives. |
| D．Competition asks plants to recognize their relatives. |
| A．Animals can recognize and memorize their relatives. |
| B．Animals’ social skill is to cooperate and share resources. |
| C．Animals’ social skill can recognize close relatives in order to work together. |
| D．Animals’ social skill is no use at all. |
| A．grow well | B．compete with other kinds of plants |
| C．strengthen the relationship among siblings | D．find which one is the best |
| A．sea rocket is a South American species |
| B．sea rocket grows aggressively alongside unrelated neighbors |
| C．sea rocket grows aggressively alongside its siblings |
| D．sea rocket is a kind of bush without flowers |
| A．Plants communicate by using tiny chemical signatures specific to each plant’s family. |
| B．Plants communicate with each other through their roots. |
| C．Plants communicate with each other by their leaves. |
| D．Plants communicate with each other with their flowers. |
The project to build a base on the moon will begin soon after 2020, with astronauts living there within four years.
The project comes after several excellent scientists and environmentalists asked humans to look beyond Earth to ensure the survival of the species (物种).
Eventually, the moon will be a base for humans to explore the solar system and one day land on Mars.
NASA began planning for the first moon landing since 1972 when George Bush, the US president, announced his new plan for space exploration four years ago.
NASA has already talked about the design of the Orion spacecraft that will replace the old space shuttle fleet in 2010.
The plan for the moon base, however, is the first detailed explanation of how NASA intends to prepare for the first manned exploration of deep space and a possible Mars mission within 30 years.
Scientists also believe that the south pole on the moon contain rich natural gases such as the rare helium-3 that could be used as fuel for the generation of nuclear power. Besides, teams of astronauts living there for six months at a time would mine for hydrogen and oxygen to make water and possibly rocket fuel.
小题1:When was the plan to explore space first announced according to the passage?
| A．In 1972. | B．In 1950. | C．In 1968. | D．In 2020. |
| A．to protect Earth | B．to explore deep space |
| C．to finish Mars mission | D．to show how powerful the USA is |
| A．hydrogen | B．food | C．oxygen | D．water |
| A．the USA’s new plan for space exploration |
| B．how to build a base on the moon |
| C．why to ensure the survival of the species |
| D．where to get new natural resources |
下面是几则培训班招生广告：
A. Comprehensive language skill training
100 lessons in total, focusing on pronunciation, grammar and discourse（语段）. To enable the learners to master the basic knowledge of the Chinese language, to have the basic ability of listening, speaking, reading and writing, so that they are able to communicate with others and to meet the needs of everyday life, study and sociality. This will lay a foundation for further study of Chinese.
B. Intermediate（中等的）Chinese Comprehensive Course
40 lessons in all, focusing on the training of the comprehensive skills of listening, speaking, reading and writing of intermediate Chinese. To enable the students to recognize, understand and use the active and less active words, to improve their ability of expressing themselves in paragraphs and discourses, to master the new words, patterns, grammatical structures, paragraphs and discourses and means of connections so as to express the meaning of the texts correctly and fluently in paragraphs and discourses.
C. News Listening
Based on frequently used words, typical sentences and information and concentrating on improving the ability of listening comprehension. To improve the ability of collecting information, to grasp the knowledge and skills they have learned and to understand the broadcasting and TV news of similar themes and relevant level of difficulty with the correctness of 80%. To build up the foundation for further study.
D. Elementary English-Chinese Translation
25 classes in total, including various styles such as poems, popular science, political comments and news, about every aspect of everyday life. The texts vary from easy to difficult and combine theory with practice as well as translation and interpretation. About 185 hours are needed. To familiarize the learners with the equivalent（对应的）Chinese expressions of English. To enable them to know usage of Chinese and English words and sentences, cultural differences and the background knowledge.
E. Elementary Spoken Chinese in Business
24 units in all. Chinese words and expressions in business and trade are introduced in the form of vivid situational dialogues, notes and exercises. To enable the learners to master the words and expressions of elementary spoken business Chinese and to communicate with others in trade and business.
F. Chinese Human Geography
Introduction to geographic environment and cultural phenomena in various parts of China, such as natural features, historical backgrounds, religious sites, ancient battle fields, dramas and arts, traditional products, and special food, etc. Through the introduction to historical and cultural sites and scenery, the learners will have a general view about Chinese geography, history, culture and regional features.
下面是5个想学习汉语的学生，阅读下面的信息，找出适合他们每个人的课程：
小题1:Mathew majors in media and hopes to understand Chinese broadcasting and TV News and communicate with the Chinese people.
小题2:Sarah is a learner of Chinese with a fairly good knowledge of basic Chinese grammar and a vocabulary of 2,500, hoping to improve her Chinese ability in speaking, reading and writing.
小题3:Lois majors in teaching Chinese as a foreign language and hopes to improve her ability in translation.
小题4:Dennis once has taught himself Chinese and can speak a little Chinese but with poor pronunciation and grammar, hoping to meet the needs of everyday life and study, and understand each other in basic communication through training.
小题5:Georgia specializes in the Chinese language and culture at the average level. He plans to have a tour in China.
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