题目
题型:不详难度:来源:
There’s a catch, of course: You have to live near enough to a major city to get broadband Internet. If you don’t, it’s slow dial-up access for you. And for those living really far out, there may be no Internet access at all.
Technology experts often talk about the “last mile” problem, which refers to the difficulty of bringing Internet access to remote locations. In cities and suburbs, it’s relatively easy to provide access for everyone. It is much more difficult to deliver access to those living far from cities, especially in developing countries. Internet service providers, for their part, have been reluctant to provide access to sparsely (稀疏地) populated areas. The handful of Internet users they would reach wouldn’t cover the expense.
But every year, technological advancements allow of more and more Internet users. Most broadband connections today run over existing cable TV and telephone lines although these technologies aren’t available everywhere.
Some companies have delivered the Internet over standard power lines. Advancements in cheaper, more efficient fiber optics cables (光纤电缆) promise to bring extremely fast Internet connections to more users.
Still, the “last mile” problem remains hard to deal with. There will always be somewhere that doesn’t have an affordable broadband connection. But someday that might not matter. If the rapid progress in cell phone technology is any indication (迹象), it may not be too long before an Internet connection simply follows you wherever you go.
小题1:The underlined part “a catch” (in Paragraph 2) probably means “_____”.
A.a rare challenge | B.a desirable plan | C.an efficient device | D.a hidden problem |
A.Internet connection has not been popular in most cities. |
B.Internet service providers care about rural(农村的)customers. |
C.Computer is popular in developing countries. |
D.It is hard to bring Internet access to users in remote areas. |
A.make TV and telephone available everywhere |
B.bring great change to people’s everyday life |
C.make it possible for more people to use the Internet |
D.bring faster Internet connections to users |
A.The broadband connection’s getting faster. |
B.More and more Internet users. |
C.more and more Internet connections. |
D.The rapid progress in cell phone technology. |
答案
小题1:D
小题2:D
小题3:C
小题4:D
解析
试题分析:本文是一篇说明文,说明了在计算机时代,我们大部分人使用宽带是理所应当的。但是技术专家讨论“最后一公里”的问题,这是互联网难以实现接入到远程位置,在发展中国家,他们不愿意为人口稀少的地方提供互联网,只在城市和郊区提供,他们认为一些互联网用户支付不起费用
小题1:推理题,由后面的句子You have to live near enough to a major city to get broadband Internet. If you don’t, it’s slow dial-up access for you. And for those living really far out, there may be no Internet access at all可以推出答案,故选D。
小题2:推理题,由第三段的主要意思,第一句是这段的主旨,Technology experts often talk about the “last mile” problem, which refers to the difficulty of bringing Internet access to remote locations.可以推出答案,所以选D。
小题3:推理题,由第四段的主要意思“越来越多的人使用互联网”,可以推出答案,所以选C
小题4:推理题,由最后一段倒数第二行If the rapid progress in cell phone technology is any indication (迹象),可以推出答案,所以选D
点评:本文主要考查推理题,推断题测试考生在阅读基础上的逻辑推理能力,要求考生根据文章所述事件的逻辑关系,对未说明的趋势或结局作出合理的推断;或根据作者所阐述的观点理论,对文章未涉及的现象、事例给以解释。考生首先要仔细阅读短文,完整了解信息,准确把握作者观点。
核心考点
试题【In the computer age, most of us take a broadband(宽带)Internet connection for gran】;主要考察你对题材分类等知识点的理解。[详细]
举一反三
Tests on rats show that those who raise two or more litters of pups do considerably better in tests of memory and skills than rats who have no babies, and their brains show changes that suggest they may be protected against diseases such as Alzheimer’s (早老痴呆症). University of Richmond psychology professor Craig Kinsley believes his findings will translate into humans.
“Our research shows that the hormones of pregnancy (***) are protecting the brain, including estrogen (雌激素), which we know has many neuroprotective (保护神经的) effects,” Kinsley said.
“It’s rat data but humans are mammals just like these animals are mammals,” he added in a telephone interview. “They go through pregnancy and hormonal changes.”
Kinsley said he hoped public health officials and researchers will look to see if having had children protects a woman from Alzheimer’s and other forms of age-related brain decline.
“When people think about pregnancy, they think about what happens to babies and the mother from the neck down,” said Kinsley, who presented his findings to the annual meeting of the Society of Neuroscience in Orlando, Florida.
“They do not realize that hormones are washing on the brain. If you look at female animals who have never gone through pregnancy, they act differently toward young. But if she goes through pregnancy, she will sacrifice her life for her infant—that is a great change in her behavior that showed in genetic alterations(改变) to the brain.”
小题1:How do scientists know “Motherhood may make women smarter”?
A.Some researchers have told them. |
B.Many women say so. |
C.They know it by experimenting on rats. |
D.They know it through their own experience. |
A.Baby rats. | B.Animals. | C.Old rats. | D.Grown-up rats. |
A.Estrogen. | B.The hormones of pregnancy. |
C.More exercise. | D.Taking care of children. |
A.The experiments on the rats have nothing to do with humans. |
B.The experiments on the rats are very important for animals. |
C.The experiments on the rats are much the same on humans. |
D.The experiments on the rats are much the same on other animals. |
What does a computer virus do? It targets electronic objects that are programmed. The virus spreads through connections between these electronic objects. For virus spreading experts, e-mail is a favorite method of sending their destructive (破坏性的) weapon.
But scientists warn that this is not the worst that can happen. There is more. People are also connected through phones. The next virus may actually target mobile phones, especially those that are programmed to do many tasks apart from just communicating. It would then be easy for a virus to infect those programs and create major disorder.
For example, these virus may have the power to record your phone conversations and make others hear them. They create problems with your electronic money accounts, or they could create a mountain of telephone bills for calls you never made. And that would be a disaster. A report on this was published in the New Scientist recently.
One way out would be to have simpler phones with not so many different functions. This would mean there would mean there would be fewer programs for the virus to attack. But mobile phone producers are in a fix. People on longer want an electronic item to perform just one task. They want more and more functions added. That would mean more software programs to make the mobile phone perform all those functions. And that means the possibility of more viruses.
小题1:It can be inferred from the passage that ______.
A.computer viruses are not so as destructive as mobile phone viruses |
B.people should be careful when receiving e-mails |
C.people find it difficult to use electronic equipment correctly |
D.having electronic money accounts brings people a lot of convenience |
A.You can’t hear the person who answers the phone clearly |
B.You can’t send e-mails with your mobile phone |
C.your phone bill increases for unknown reasons |
D.You can hear other people’s phone conversations |
A.Mobile phone producers have made no progress. |
B.Mobile phone producers are proud of their products. |
C.Mobile phone producers are faced with a difficult situation. |
D.Mobile phone producers refused to fight against virus. |
A.Government officials | B.Virus spreading experts |
C.Electronic scientists | D.Mobile phone users |
When planes fall from the sky, as a Yemeni airliner did on its way to Comoros Islands in the India ocean June 30, 2009, the black box is the best bet for identifying what went wrong. So when a French submarine (潜水艇) detected the device"s homing signal five days later, the discovery marked a huge step toward determining the cause of a tragedy in which 152 passengers were killed.
In 1958, Australian scientist David Warren developed a flight-memory recorder that would track basic information like altitude and direction. That was the first mode for a black box, which became a requirement on all U.S. commercial flights by 1960. Early models often failed to withstand crashes, however, so in 1965 the device was completely redesigned and moved to the rear of the plane – the area least subject to(易遭受)impact – from its original position in the landing wells (起落架舱). The same year, the Federal Aviation Authority required that the boxes, which were never actually black, be painted orange or yellow to aid visibility.
Modern airplanes have two black boxes: a voice recorder, which tracks pilots" conversations, and a flight-data recorder, which monitors fuel levels, engine noises and other operating functions that help investigators reconstruct the aircraft"s final moments. Placed in an insulated (隔绝的) case and surrounded by a quarter-inch-thick panels of stainless steel, the boxes can withstand massive force and temperatures up to 2,000℉. When submerged, they"re also able to emit signals from depths of 20,000 ft.
Experts believe the boxes from Air France Flight 447, which crashed near Brazil on June 1, 2009, are in water nearly that deep, but statistics say they"re still likely to turn up. In the approximately 20 deep-sea crashes over the past 30 years, only one plane"s black boxes were never recovered.
小题1:What information could be found from the black box on the Yemeni airliner?
A.Data for analyzing the cause of the crash. |
B.The total number of passengers on board. |
C.The scene of the crash and extent of the damage. |
D.Homing signals sent by the pilot before the crash. |
A.New materials became available by that time. |
B.Too much space was needed for its installation. |
C.The early models often got damaged in the crash. |
D.The early models didn"t provide the needed data. |
A.To distinguish them from the colour of the plane. |
B.To caution people to handle them with care. |
C.To make them easily identifiable. |
D.To obey international standards |
A.There is still a good chance of their being recovered. |
B.There is an urgent need for them to be reconstructed. |
C.They have stopped sending homing signals. |
D.They were destroyed somewhere near Brazil. |
The breakthrough study conducted by psychologist Professor Ben Bradley, at Charles Sturt University, could completely transform the way child-care centers are set up. In their study, the researchers examined groups of nine-month-old babies in new South Wales and Britain.
And they came across astonishing results—it was found that infants had “social brains” and focused not just on their mothers but on social 1ife in groups as well,
“They communicate with more than one baby at once,and show jealousy and generousness,”said Professor Bradley.
He added,“They develop their own meanings through group interaction,they notice if a group member is behaving differently and they take on roles,such as leaders and followers.”
“A baby who has a depressed mother tends to be withdrawn(内向的),but put that same baby in a group of its peers(同龄人)and they behave and interact like any other baby.”
It was the first all-baby group study ever to be conducted.“Most studies of babies concentrate on the infant-mother relationship,assuming that is the single foundation for mental health.but babies are constantly involved with groups of people other than their mothers:fathers,siblings,grandparents and those taking care.Therefore。the ‘mother-baby approach’ needs to be combined with a‘ group approach’.”said Bradley.
Phoebe Christison ,a child-care worker at Camperdown Sunshine Bubs in Sydney’s inner west.said she often noticed what appeared.to be emotional attachments developed between toddlers.
She said,“Joel(10 months)and Isabella (11months)always like to hold hands when they sit in their high chairs and eat.And babies definitely show jealousy.They push and touch each other,and copy what the other is doing.”
小题1:A baby who has a depressed mother ____ .
A.tends to be a follower |
B.also enjoys group interaction |
C.has poor social ability |
D.pays more attention to its mother |
A.Babies are affected by groups more than by their mothers. |
B.There’s no need of child-care centers at a11. |
C. Adults should include babies when having social activities. |
D.The normal infant-mother bond alone isn’t enough for the good mental health for babies. |
A.adults | B.infants | C.peers | D.groups |
A.is born to be friendly to other babies |
B.has interest in peers as well as in its mother |
C.may have emotional attachments to another baby |
D.shows jealousy and generousness as an adult |
Nowadays, children watch television for long hours. They often spend evenings watching their favorite programs on TV. Sometimes they might stay up late to watch TV. Their addiction to television results in their not having time to play or do exercise. They should go outside with friends or spend time reading books. Moreover, watching television too much is harmful to their eyesight.
Researchers claim that attention deficit disorders in children are a result of watching too much television. They say that watching television leads to a developmental disorder in the part of the brain which is responsible for language skills. Children who watch television more and read less have greater difficulty paying attention and concentrating. Children that spend long hours watching television are more likely to be affected by attention deficit disorders.
Television is one form of media which is used to show all kinds of products. Watching too much television can lead to early exposure to a wide variety of things. Television advertisements may cause children to behave incorrectly or damage themselves. Advertisements about fast food, cold drinks or other such products that are not good for children’s health can have a bad effect on them. Some TV shows and films also affect how children think and behave.
Studies in psychology have shown that certain programs can have a long-lasting effect on children’s minds. Horror scenes and other frightening shows can have a negative effect on the minds of children watching them.
Television is a means of recreation but watching it too often is harmful to children’s physical and mental health. You need to help you children deep a balance of everything in life.
小题1:The underlined word “deficit ” in the third paragraph most probably means _____.
A.need | B.habit | C.fear | D.lack |
A.decide on when children can watch television |
B.give children more time to play |
C.help you children balance everyday life |
D.stop you children from watching TV |
A.The bad effects watching TV has on children. |
B.How many hours children should spend watching TV. |
C.How advertisements affect children’s behavior. |
D.What scenes children should not watch on TV. |
a. causing children to have less time to read good books.
b. making children behave improperly
c. harming children’s eyesight
d. affecting the parent-child relationship
A.a, b, d | B.b, c, d | C.a, b, c | D.a, c, d |
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