题目
题型：不详难度：来源：
“College costs are high, and young adults also want the amenities (便利设施) that extra money brings,” according to John B. Boshoven, counselor for continuing education at Community High School in Michigan. However, he warns, “School is my students’ full-time job.”
Studies show that students who work are more confident and possess better time management skills than students who are not employed. In addition to offering a paycheck, some independence, and satisfaction, a part-time job can provide teenagers with both training and experience. Working teaches students about responsibility and can also reinforce (充实) what they are learning in school. “Colleges want to find candidates who demonstrate maturity, responsibility, independence, and initiative, and good workers certainly demonstrate those important character traits,” Boshoven says. “Employers can write excellent recommendation letters for the students who have worked for them.”
On the other hand, experts agree that students who work more than 15 to 20 hours per week often experience lessened school success, which can lead to dropping out entirely. Working long hours can also limit opportunities to build friendships and explore interests that enhance a teenager’s intellectual and emotional development.
The major point that students should keep in mind is the importance of balance. Dan Crabtree, college and career counselor at Wheaton Academy in Illinois, explains, “We want our students to establish a healthy balance in life and work to maintain it throughout their lives.” If working will interfere with completing school work, participating in extracurricular activities, spending time with family and friends, or getting enough rest, it may not be a wise decision.
小题1:What’s the purpose of the passage?
| A．To show how students can find a part-time job. |
| B．To discuss the issue of students’ part-time work. |
| C．To stress the importance of students’ part-time work. |
| D．To explain what is a part-time job. |
a. should take their studies as the first priority
b. can benefit from part-time work
c. can form healthy habits in their lives
d. shouldn’t depend on their families financially
| A．bc | B．bd | C．ab | D．ac |
| A．without counselors" help, few students can get employed |
| B．teenagers show strong interest in part-time work |
| C．experts encourage students do more part-time work |
| D．too much part-time work can lead to bad academic performance |
| A．Students should balance part-time work well with other things. |
| B．Part-time work is important for most students at college. |
| C．Experts’ advice is the key to finding a good part-time job. |
| D．All in all, students had better not spend time on part-time work |
答案
小题1:B
小题2:C
小题3:D
小题4:A
解析
试题分析：这篇文章讲的是学生兼职工作的问题。从兼职工作的好处和不利因素两个方面来陈述，重要的是学生应该在工作和学习两方面平衡。
小题1:主旨题：从第一段的句子：For some students, especially those from poor families, taking a job is not a matter of choice, but necessity. They need to work to save for college, or even to supplement family income. 可知这篇文章讲的是学生兼职工作的问题。选B
小题2:细节题：从第二段的句子：“College costs are high, and young adults also want the amenities (便利设施) that extra money brings,” “School is my students’ full-time job.” 可知在Boshoven看来，学生可以从兼职工作中受益，但是要以学习为第一。选C。
小题3:细节题：从第四段的句子：On the other hand, experts agree that students who work more than 15 to 20 hours per week often experience lessened school success, which can lead to dropping out entirely.可知兼职工作太多会影响学习成绩。选D
小题4:细节题:从第五段的句子：The major point that students should keep in mind is the importance of balance.可知学生应该在工作和学习两方面平衡。选A
点评：这篇文章讲的是学生兼职工作的问题。从兼职工作的好处和不利因素两个方面来陈述，重要的是学生应该在工作和学习两方面平衡。本文意思通俗易懂，考查了细节题主旨题，要求考生仔细阅读全文，做好相应的标志，以提高阅读的效率和速度，阅读时可以先看题目再读文章，这样可以减少阅读的时间，提高阅读的效率。
核心考点
试题【For some students, especially those from poor families, taking a job is not a ma】；主要考察你对题材分类等知识点的理解。[详细]
举一反三
Cats have a lot of pride. They don’t usually do silly tricks. Almost all cats want to have their own way. They are mostly true to only one person. They don’t switch loyalty easily. Cats were free in the wild. They want to stay that way. They like to be their own masters. When a cat is left alone, it can go back to caring for itself. It can live in the wild again. This is different from dogs. Dogs will switch their loyalty. At one time dogs were loyal to the leaders of their packs. Now, they will transfer allegiance(忠诚)to their owner. They do not like to be alone.
With kindness, a cat can be trained. Cats can learn to do many things. Some cats can learn to open doors. Some can ring doorbells. Some can even turn on water tap. Then they take a drink. Cats are very smart. Before drinking, they put a paw in the water. They test whether the water is hot or cold.
小题1:What is the best title for this passage?
| A．The Difference Between Dogs and Cats. | B．The Characteristics of Cats. |
| C． Loyal Animals. | D． How to Keep Cats? |
A.they always switch their loyalty B. they like to do silly tricks
C. they will hiss when they are happy D they are smart and have good memories
小题3:The last paragraph mainly shows that ________.
| A．cats can test whether the water is cold or not |
| B．cats know how to turn on the water tap |
| C．cats are smart |
| D．cats know how to open a door |
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 |
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. |
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