题目列表(包括答案和解析)
In the computer age, most of us take a broadband Internet connection for granted. Whether cable or mobile broadband, today’s connections are many times faster than those in the early days. Videos play smoothly, complex websites load quickly, and files download much faster than ten years ago. And the files are much bigger too.
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 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. |
In England a woman fell down a stair. Panic followed—178 persons lost their lives. In Michigan a woman fell ill. There was a call for water. Someone thought it meant fire---71 were killed. In Oklahoma an old man’s hair caught fire---36 died.
What should you do to be out of danger?
1. As you sit in any crowd, pick out an exit(出口) which is not the one where most persons enter and plan to use if necessary.
2. If a rush stairs, do not get into it . Stay still. Let it pass. Then go to the exit you have chosen.
3. Do not cry out. Speak quietly. Act calmly.
4.Do not stop for your hat and coat unless they are at hand.
5. If there is smoke, crouch. The best air is about three feet above the floor.
6. When you are outside the building, stay out. Many dead would be alive if they had not returned for something.
7. When you get out, move far from the door so that others can get out.
【小题1】The first paragraph tells us that over two hundred people lost their lives because of_________.
A.a fire | B.a call for water |
C. falling downstairs | D.panic |
A.run with the others. |
B.call for help as loudly as you can. |
C.hurry at once to an exit. |
D.stay still until the crowd has passed. |
A.stay outside. |
B.go back for your wallet. |
C.return to ask people not to run. |
D.stand near the exit. |
A.the smoke can get out. |
B.you will not get burned |
C.others may leave. |
D.others may enter. |
In the computer age, most of us take a broadband(宽带)Internet connection for granted. Whether cable or mobile broadband, today’s connections are many times faster than those in the early days. Videos play smoothly, complex websites load quickly, and files download much faster than ten years ago. And the files are much bigger too.
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. |
In the computer age, most of us take a broadband(宽带)Internet connection for granted. Whether cable or mobile broadband, today’s connections are many times faster than those in the early days. Videos play smoothly, complex websites load quickly, and files(档案文件)download much faster than ten years ago. And the files are much bigger too.
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(郊区), 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. |
A recent Auburn University study provides some real numbers to back a theory we’ve all known was true for some time—planting a shade tree near your home reduces energy bills significantly in the spring and summer months. The study, conducted in Auburn,
Alabama, included 160 homes with different levels of shade. Each home’s energy usage was monitored and compared to other houses with similar energy— using patterns, size, type of cooling system, etc. Here are some highlights from the study:
Houses with trees on the west side of their home had a “much lower power bill”.
Older homes had the most shade coverage, because people did not use to rely on air conditioning as much to keep them cool.
Children under age 12 consume the most power in a home as they watch television, play games and frequently leave lights on.
Fall and early winter are the perfect seasons to plant a tree. This time of year many nurseries(苗圃)are trying to reduce their inventory of trees heading into the winter, so you may find a deal on trees easily to plant around your lot.
While you have the spade out, consider planting a tree near your outside air conditioning unit. The shade will keep the unit cooler and help it operate more efficiently. Be sure to plant far enough from the unit to allow proper airflow, and account for the tree’s growth over time.
It actually hurts to watch the trees being knocked over when land developers plan neighborhoods because trees could provide much needed shade to new homeowners, reducing their electric bill and the amount of energy they consume. Hopefully this study, and more like it in the future, will encourage developers and builders to plan around trees as much as possible to offer homeowners a shaded lot.
1.What does the passage mainly tell us?
A.A new study about planting trees.
B.Planting trees to reduce your power bill.
C.Houses with trees on the west side.
D.Don't cut trees down when planning neighborhoods.
2.The underlined word "inventory" in Paragraph 5 is closest in meaning to ________.
A.invention B.volume C.list D.type
3.According to the passage, ____ might spend more energy cost.
A.houses with trees on the west side of their home
B.older houses with the most shade coverage
C.houses with different levels of shade
D.houses with the children under age 12
4.Which is NOT the benefit of planting a tree near the outside air conditioning unit?
A.The shade will keep the unit much cooler.
B.The shade helps the unit operate more efficiently.
C.The trees stops the unit having proper airflow.
D.The shade prevents the sunlight from shining on the unit.
5.What can we learn from this study?
A.The study is carried out by the students at Auburn University, Alabama.
B.While planning new neighborhoods, developers often cut down the trees there.
C.Houses with trees on the east side of their house had a lower power bill.
D.The study will prevent developers and builders from planning more trees.
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