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Radio communication（）for many years and helps to save tens of thousands of lives.
A . has been used
B . have been used
C . has used
D . have used
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Many companies spend a lot of money and time（）their trademarks.
A . to register
B . registering
C . register
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Many fish have ____ways of protecting their eggs from predators.
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Parents should really take extra care of their babies as many accidents actually at home.
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The reason why so many Australians don’t speak other languages is that they are so proud of their own language._______________
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For many women, the _______ of family obligations prevents their career progression.
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Many people feel that they are never in control of their lives.This can cause stress,depression and finally ( ).
A、isolation
B、life expectancy
C、burnout
D、electro smog
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Parents of young couples, with the old concept of family and happiness, want their children to live with them after marriage and they don't complain about the troubles they have to take in living with their married children.
A．Y
B．N
C．NG
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Birds share many traits with their dinosaur ancestors, ________ the best living group to reconstruct certain aspects of non-avian theropod biology.
A．A.making birds
B．B.makes birds
C．C.make birds
D．D.to make birds
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Agatha Christie lived in Penzance and used many of the town's. settlngs in her widely read mysteries.
A．Y
B．N
C．NG
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43 Many older physicians in the U. S. iew the work ethic of their younger counterparts
A with appreciation.
B with disapproal.
C with jealousy.
D with indifference.
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Adults are capable of（)their lives outside their homes and at their job.
A．A.Controlling
B．B. handling
C．C. leading
D．D.prevailing
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A third thought that starting up their own business would give them a better （) of living.
A.standing
B.standards
C.standarding
D.standard
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Mobile Phones:Are They about to Transform. Our Lives？ We love them so much that some of us sleep with them under the pillow,yet we are increasingly concerned that we cannot escape their electronic reach.We use them to convey our most intimate secrets,yet we worry that they are a threat to our privacy.We rely on them more than the lnternet to cope with modern life,yet many of us don’t believe advertisements saying we need more advanced services.
Sweeping aside the doubts that many people feel about the benefits of new third generation phones and fears over the health effects of phone masts(天线竿),a recent report clains that the long-term effects of new mobile technologies will be entirely positive so long as the public can be convinced to make use of them.Research about users of mobile phones reveals that the mobile has already moved beyond being a mere practical communications tool to become the backbone (支柱)of modern social life,from love affairs to friendship to work.One female teacher,32,told the researchers:“I love my phone.It’s my friend.”
The close relationship between user and phone is most pronounced among teenagers,the report says,who regard their mobiles as an expression of their identity.This is partly because mobiles are seen as being beyond the control of parents.But the researchers suggest that another reason may be that mobiles,especially taxt messaging,are seen as a way of overcoming shyness.“Texting is often used for apologies,to excuse lateness or to communicate other things that make us uncomfortable,”the report says,The impact of phones,however,has been local rather than global,supporting existing friendships and networks,rather than opening users to a new broader community.Even the language of texting in one area can be incomprehensible to anybody from another area.
Among the most important benefits of using mobile phones,the report claims,will be a vastly improved mobile infrastructure(基础设施),providing gains throughout the economy,and the provision of a more sophisticated location-based services for users.The report calls on govemment to put more effort into the delivery of services by bobile phone,with suggestions including public transport and traffic information and doctors’ text messages to remind patients of appointments.“I love that idea,”one user said in an interview.“It would mean I wouldn’t have to write a hundred messages to myself.”
There are many other possibilities.At a recent trade fair in Sweden,a mobile navigation product was launched.When the user enters a destination,a route is automatically downloaded to their mobile and presented by voice,pictures and maps as they drive.In future,these devices will also be able to plan around congestion(交通堵塞)and road works in real time.Third generation phones will also allow for remote monitoring of patients by doctors.In Britain scientists are developing a asthma(哮喘)management solution,using mobiles to detect early signs of an attack.
第11题：What does the writer suggest in the first paragraph about our attitudes to mobile phones？
A．We can’t live without them.
B．We are worried about using them so much.
C．We have contradictory feelings about them.
D．We need them more than anything else to deal with modem life.
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People are not satisfied with their lives so they spend lots of time on the Intemet.
<img src='https://img2.soutiyun.com/ask/uploadfile/2649001-2652000/b4c2ea89d91c55659d52052689bff115.gif' />
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The Mayan Indians lived in Mexico for thousands of years before the Spanish arrived in the 1500s. The Maya were an intelligent, culturally rich people whose achievements were many. The Mayan people knew a lot about nature and the world around them. This knowledge helped them to live a better life than most people of that time, because they could use it to make their lives more comfortable and rewarding. Knowledge about tools and farming, for instance, made their work easier and more productive.
In ancient Mexico there were many clearings in the forest. In each clearing was a village with fields of different crops around it. The Maya cut down trees with stone axes and planted seeds by digging holes in the ground with pointed sticks. A farmer was able to grow crops that produced food for several people. But not every Maya had to be a farmer. Some were cloth makers, builders, or priests.
The Maya believed in many gods. The people built large temples to honor their gods. Skillful workers built cities around these temples. It was difficult to construct these cities, because they had no horses to carry the heavy stone needed. Workers had to carry the building materials themselves. Today, many of these ancient Mayan cities and temples are still standing.
Measuring time was important to the Maya, so they developed a system for measuring it accurately. Farmers needed to know when to plant and harvest their crops. Mayan priests made a system to keep track of time. They wrote numbers as dots (...) and bars (- ). A dot was one and a bar was five.
The Mayan priests studied planets. They made a calendar from what they learned. The year was divided into. 18 months of 20 days each with five days left over. The Mayan calendar was far more accurate than the European calendars of the time.
Around the year 800, the Maya left their villages and beautiful cities, never to return. No one knows why. They may have died from an infectious disease. They may have left because the soil could no longer grow crops. Archaeologists are still trying to find the lost secrets of the Maya. They are still one of our greatest mysteries.
This article may be taken from ______.
A．a magazine
B．a literature book
C．an art book
D．a historical book
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Botany, the study of plants, occupies a peculiar position in the history of human knowledge. For not many thousands of years it was the one field of awareness about which humans had anything more than the vaguest of insights(了解). It is impossible to know today just what our Stone Age ancestors knew about plants. But from what we can observe of pre-industrial societies that still exist, a detailed learning of plants and their properties must be extremely ancient. This is logical. Plants are the basis of the food pyramid for all living things, even for other plants. They have always been enormously important to the welfare of peoples, not only for food, but also for clothing, weapons, tools, dyes, medicines, shelter, and a great many other purposes. Tribes living today in the jungles of the Amazon recognize literally hundreds of plants and know many properties of each. To them botany, as such, has no name and is probab-ly not even recognized as a special branch of "knowledge" at all.
Unfortunately, the more industrialized we become, the farther away we move from direct contact with plants, and the less distinct our knowledge of botany grows. Yet everyone comes unconsciously on an amazing amount of botanical knowledge, and few people will fail to recognize a rose, an apple, or an orchid. When our Neolithic ancestors, living in the Middle East about 10,000 years age, discovered that certain grasses could be harvested and their seeds planted for richer yields the next season, the first great step in a new association of plants and humans was taken. Grains were discovered and from them flowed the marvel of agriculture: cultivated crops. From then on, humans would increasingly take their living from the controlled production of a few plants, rather than getting a little here and a little there from many varie-ties that grew wild and the accumulated knowledge of tens of thousands of years of experience and intimacy with plants in the wild would begin to fade away.
It is assumed in the passage that early humans ______.
A．probably had extensive knowledge of plants
B．thought there was no need to cultivate crops
C．did not enjoy the study of botany
D．placed great importance on the ownership of property
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Plastic bags are useful' for holding many kinds of food, ______ their cleanness, toughness and low cost.
A．by virtue of
B．in addition to
C．for the sake of
D．as opposed to
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For many companies ,the use of （） ________ products is an important part of their marketing efforts.
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Many Southerners thought slavery was wrong, whereas most white Northerners considered slavery part of their way of life.___（）
是
否
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Many people in the United States spend most of their free time watching television.。（)
是
否
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These women live in New York city where it may be difficul to（) a way of living that would be for affordable for their budgets.
A.construct
B.contribute
C.contrive
D.contact
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Members of House of Commons hold their seat for（）years at most
A．Five
B．Four
C．Seven
D．Three
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The theoretical separation of living, working, traffic and recreation which for many
The theoretical separation of living, working, traffic and recreation which for many years has been used in town-and-country planning, has in my opinion resulted in disproportionate attention for forms of recreation far from home whereas there was relatively little attention for improvement of recreative possibilities in the direct neighborhood of the home.
