Switching telephone providers used to be the only way homeowners could save mone
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Switching telephone providers used to be the only way homeowners could save money on telephone bills. Now thanks to new technology, comsumers have another choice-making phone calls over the internet. And this can be completely free if you call another person with an internet phone set-up.
The technology is called voice over internet protocol (协议), or VoIP. In 2005, consumer demand for VoIP dramatically grew. In the US, where popularity has grown faster than here in the UK, 8.4 million are predicted to subscribe this year. For the past couple years, VoIP pioneers such as Skype have accounted for the majority of internet phone subscribers.
VoIP is attractive to consumers because it’s cheaper than traditional phone services. With the basic equipment of PC, microphone and headset, and VoIP software and broadband internet for optimum (最适宜的) voice quality, consumers can save a fortune chatting for free to other internet phone owners and save money calling regular landlines (通讯电缆). But, as the saying goes, you get what you pay for. Many of these services suffer from uncontinuous lapses (失效) in quality. While some users may tolerate echoes or a dropped call, improved quality is needed to attract more customers.
Computing has examined the benefits of using a PC as a telephone with VoIP in how easy they were to set up, how effective they were and the range of their features.
Skype(www. skype.com) came top for its bother-free approach, easy set-up and exceptional voice clarity. Sipgate (www. sipgate. co. uk), MSN(www. messenger. msn. co. uk) and Yahoo! Messenger (uk. messenger. yahoo. com) provide an audio “wizard” that improves sound levels. Google Talk (www. google. com/ talk) was less helpful and Babble. net (www. babble. net) was let down by its poor help files. Yahoo! Messenger provides some of the best features, including the option of landline calls, webcam chats, instant messaging, voice-mail and conference calls.
小题1:Which one of the following if you call others?| A．VolP,voice over internet protocol | | B．Switching telephone | | C．New technology | | D．letters |
小题2:The underlined sentence in Paragraph 3 implies that ______.| A．VoIP can save money but it has some disadvantages | | B．whatever you buy is related to how much you pay | | C．what you pay for will belong to you forever | | D．what you buy is not always high in quality |
小题3:Which of the following statement is true according to the passage?| A．Sipgate is less helpful. | | B．Yahoo! Messenger offers some best features. | | C．Skype is the best one in the new technology. | | D．Google Talk provides very good audio “wizard”. |
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答案
小题1:A
小题2:A
小题3:B |
解析
文章讨论了几种新型的网络电话及其特点。
小题1:根据文章1,2两段内容可知我们现在打电话的时候，会用VolP，因为它便宜，舒适。
小题2:猜测句意题。根据下一句Many of these services suffer from uncontinuous lapses (失效) in quality. While some users may tolerate echoes or a dropped call,可知这种服务还有很多的欠缺之处。
小题3:细节题。根据文章最后Yahoo! Messenger provides some of the best features, including the option of landline calls, webcam chats, instant messaging, voice-mail and conference calls. 可知B正确。 |
举一反三
In the past, man did not have to think about the protection of his environment. There were few people on the earth, and natural 36 seemed to be unlimited.
Today things are 37 . The world has become too 38 . We are 39 our natural resources too quickly, and at the same time we are 40 our environment with dangerous chemicals. If we 41 to do this, human life on earth will not 42 .
People realize today that if too many 43 are taken from the sea, there will soon be none left. Yet, with modern fishing 44 , more and more fish are caught.
We know that if too many trees are cut down, 45 will disappear and nothing will 46 on the land. Yet, we continue to use bigger and more powerful machines to 47 more and more trees.
We realize that if rivers are polluted with waste products from factories, we will die. 48 , in most countries waste products are still put into rivers or into the sea, and there are few laws to 49 this.
We also know that if the 50 of the world continues to rise at the present rate, in a few years, there won"t be enough food. What can we do to solve the 51 ? If we eat more vegetables and less 52 , there will be more food available for everyone. Land that is used to grow crops feeds five times more people than land where animals are kept.
Our natural resources will 53 longer if we learn to recycle them. The world population will not 54 so quickly if people use modern methods of birth control.
Finally, if we 55 people to think about the problems we shall have a better and cleaner planet in the future.
| 小题1: | | A．resources | B．sources | C．materials | D．matter |
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| 小题2: | | A．common | B．the same | C．changeable | D．different |
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| 小题3: | | A．crowded | B．polluted | C．dirty | D．busy |
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| 小题4: | | A．producing | B．using up | C．reducing | D．making |
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| 小题5: | | A．protecting | B．saving | C．polluting | D．fighting |
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| 小题6: | | A．try | B．continue | C．stop | D．have |
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| 小题7: | | A．live | B．last | C．continue | D．survive |
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| 小题8: | | A．fish | B．seagulls | C．crocodiles | D．frogs |
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| 小题9: | | A．poles | B．boats | C．methods | D．ideas |
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| 小题10: | | A．mountains | B．the sea | C．crops | D．forests |
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| 小题11: | | A．grow | B．plant | C．save | D．cut down |
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| 小题12: | | A．plant | B．cut down | C．save | D．burn down |
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| 小题13: | | A．Thus | B．However | C．Generally speaking | D．Therefore |
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| 小题14: | | A．encourage | B．neglect | C．stop | D．wake up |
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| 小题15: | | A．production | B．pollution | C．population | D．revolution |
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| 小题16: | | A．pollution | B．environment | C．questions | D．problems |
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| 小题17: | | A．fruit | B．meat | C．fish | D．grain |
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| 小题20: | | A．force | B．help | C．educate | D．show |
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Let children learn to judge their own. A child who learns to talk does not learn by being corrected all the time; if corrected too much, he will stop talking. He notices a thousand times a day the difference between the language he uses and the language those around him use. Little by little, he makes the necessary changes to make his language like other people’s, in the same way, children learn to do all the other things without being taught—to walk, run, climb, ride a bicycle—compare their own performances with those of more skilled people, and slowly make the needed changes. But in school we never give a child a chance to find out his mistakes if we thought that he would never notice a mistake unless it was pointed out to him, or correct it unless he was made to. Let him work out, with the help of other children if he wants it, what this word says, what the answer is to that problem, whether this is a good way of saying or doing this or not. If it is a matter of right answers, as it may be in mathematics or science, give him the answer book. Let him correct his own papers. Why should we teachers waste time in doing such work? Our job should be to help the child when he tells us that he can’t find the way to get their own understanding, how to know what they know or do not know.
小题1:According to the passage, the best way for children to learn things is ___ | A．to listen to skilled people’s advice | | B．to ask older people many questions | | C．to make mistakes and have them corrected | | D．to do what other people do |
小题2:According to the writer, teachers in school should ___ | A．allow children to learn from each other | | B．point out children’s mistakes whenever they are found | | C．correct children’s mistakes as possible as they can | | D．give children more book knowledge |
小题3:Which of the following does the writer think teachers should not do? | A．Give children correct answers | | B．allow children to make mistakes | | C．Point out children’s mistakes | | D．Let children judge their own work |
小题4:The passage suggests that learning to speak and learning to ride a bicycle are ___. | A．different from learning other skills | | B．the same as learning other skills | | C．more important than other skills | | D．not really important skills |
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BEIJING--Alarmed by the overreaching ambitions of many Chinese provinces to grow at all costs, China’s top economic chief is calling on officials to calm down and spare a thought for the environment．
Zhang Ping, who heads China’s National Development and Reform Commission, the central economic planning agency, said only five or six of China’s 30 provinces are targeting annual economic growth of 8 percent or 9 percent．
The remaining provinces are aiming for growth rates of more than 10 percent this year, with some wanting to double economic output in the coming five years．
“China has a planned energy supply of about 4 billion cubic tons of coal equivalent（等量的）for the next five years, and this is not enough to meet demands for economic growth to double,” he was quoted as saying on the news portal Sina．Com．
Beijing is increasingly concerned with the ambitions of Chinese provinces across the country to chase high growth despite the central government’s urgent request for a more moderate and sustainable（可持续的）pace of expansion．
Years of rapid economic growth has taken a toll on China’s environment, with Beijing trying to remove some of the damage now．It has an annual growth target of 7 percent for the next five years, well down from last year’s 10 percent．
Zhang said Beijing has asked local governments to take into account the supply of “energy, environment, water and land” to set more reasonable growth targets．
小题1:Which of the following statements is TRUE according to the passage?| A．Many Chinese provinces are alarmed by Beijing． | | B．Zhang Ping is an expert and economic chief from www. Sina.Com． | | C．The supply of the coal in China is not sufficient(足够的) for the next five years． | | D．Few Chinese provinces are aiming for economic growth rates of less than 10%． |
小题2:The underlined phrase “taken a toll on” in the sixth paragraph means “_________”．| A．looked forward to | B．paid attention to | | C．caused damage to | D．attached importance to |
小题3:The general idea of the whole passage can be that ________．| A．China’s economy is developing | | B．China’s top chief places more emphasis on the environment | | C．all Chinese provinces should slow down their economic growth rates | | D．economic high growth should go hand in hand with environmental protection |
小题4:What could be the best title for the news?| A．Economic Development | B．Energy Supply | | C．Sustainable Development | D．Environment protection |
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Whatever field we are involved in，we always have to look for ways to expand our knowledge.An increase in knowledge in a particular subject can lead to a better understanding，grasp，judgment，intelligence and ability in that area.So how do we go about gaining knowledge?
I think people are the biggest source of knowledge for anybody.Right from childhood，we have learned things by watching others.Whatever field you want to gain knowledge in，there must be many who have experience in that field.So make use of this valuable source of information by learning from the experience，success，mistakes and skills of others. Study carefully and associate with people who are experts in the field you want to gain knowledge in.
The next best source of knowledge should be books.There are millions and millions of books in every language and on almost any topic imaginable.Whatever problem you are facing must have been faced by somebody else before，and its solution is likely to have been preserved in the form of a book.If you are serious about gaining knowledge about a topic，then read any book，magazine，article etc.You can lay your hands on the books related to that topic.Read as much as you can.
It is said that experience is a great teacher，so learn from your past experience and the experience of others.Learn from your and others’ past and present achievements as well as mistakes.
Experimenting with new things and observing new things can help you learn very quickly. Keep in mind，though，that while experimenting，you may encounter a few failures , too.Do not become discouraged as failures are a part of the learning curve，especially while attempting something new.Try to earn from failures instead of becoming disheartened.
小题1:Which of the following statements is TRUE according to this text?| A．Books are the biggest source of knowledge. | | B．An expert can teach people everything useful. | | C．Mistakes are the best source of knowledge. | | D．People from an early age have learned things from others. |
小题2:If a person decides to learn about a topic，he or she should________.| A．prepare well for the coming problems | | B．experiment or observe as much as possible | | C．read as many books related to that topic as possible | | D．make friends with as many experts in that field as possible |
小题3:The author would NOT agree that________.| A．experimenting with new things is the quickest way to learn | | B．people can learn from their own experience and others’ | | C．people can learn from both achievements and mistakes | | D．failures teach people something |
小题4:This text mainly talks about________.| A．the importance of learning | | B．means of gaining knowledge | | C．ways to become successful | | D．the advantages of reading |
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Imagine that the genome （基因组） is a book．The book consists of 23 chapters with thousands of stories made up of paragraphs, words and letters on different levels．There are one billion words in the book, as long as 800 Bibles; if I read the genome out to you at the rate of one word per second for eight hours a day, it would take me centuries; if I wrote out the human genome, one letter per millimeter, my text would be as long as the River Danube．This is a huge volume, a book of great length, but it all fits inside an extremely small cell nuclear（细胞核） that fits easily upon the head of a pin．
The idea of the genome as a book is not, strictly speaking, even a metaphor．It is true to a great extent．A book is a piece of digital information, written in one-directional form and defined by a code that translates a small alphabet of signs into a large dictionary of meanings through the order of their groupings．So is a genome．The only difference is that all English books read from left to right, while some parts of the genome read from left to right while some from right to left, but never both at the same time．
While English books are written in words of different lengthens using twenty-six letters, genomes are written entirely in words of three-letter length, using only four letters, and instead of being written on flat pages, they are written on long chains of DNA molecules （分子）．
The genome is a very clever book, because in the right condition it can both photocopy itself and read itself．
小题1:How do human genomes read according to the passage?___________| A．Only from left to right． | | B．Only from right to left． | | C．From both directions at the same time． | | D．From one direction at a time． |
小题2:We can learn from the passage that the human genome ________．| A．is as long as the River Danube | | B．can be easily placed on the head of a pin | | C．is coded with an alphabet of four letters | | D．is smart enough to read and take photos of itself |
小题3:It can be concluded that the passage is mainly written for ______．| A．specialists in the field | | B．general readers | | C．natural scientists | | D．readers with professional knowledge |
小题4:The real purpose of the author’s comparison of the genome to a book is _____．| A．to focus on the differences between the two | | B．to lay emphasis on the similarities between the two | | C．to simplify the concept of the human genome | | D．to give an exact description of the human genome |
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