欧美日韩黄网欧美日韩日B片|二区无码视频网站|欧美AAAA小视频|久久99爱视频播放|日本久久成人免费视频|性交黄色毛片特黄色性交毛片|91久久伊人日韩插穴|国产三级A片电影网站|亚州无码成人激情视频|国产又黄又粗又猛又爽的

E

Third-generation mobile phones, known as 3G, are the next big step for the telecom(電信) industry. Data speed in 3G networks is much quicker than that in present technology. This means users can have high-speed Internet access(上網(wǎng)) and enjoy video and CD-quality music on their phones.

   "Mobile data is not a dream; it's not an option(選擇) but a requirement" said Len Lauer, head of a US communications company, Sprint PCS, at a 3G conference in Bangkok earlier this month.

   With 3G, you can forget about text messages telling you yesterday's news; a 3G phone can receive video news programs, updated(更新) four times a day. Internet access will also be much quicker, making it easier to surf the Web on your phone than on your computer at home. 

   Don't worry about getting lost. 3G phones offer map services so you can find a new restaurant just by pressing a few keys on your handset(手持機(jī)).

   However, the most impressive part of 3G technology is video calling. With live two-way video communication, you can have face-to-face talks with friends and family on your mobile phone.

   Many European countries have already launched the service. In May 2000 the US Government issued five licenses(許可證) to run 3G wireless services, while the first 3G phones arrived in Italy in March this year.

    International telecom companies can't wait to sell 3G in China, the world's largest mobile telecommunications market. But they will have to be patient. At the moment, China is busy testing its 3G-based technologies, networks and services. This will be followed by a trial period before the phones can finally hit the shops.

   “We need to create a pool of 3G customers before the large-scale commercial launch(開(kāi)始) of the service,” said Fan Yunjun, marketing manager for Beijing Mobile. “We expect that the 3G licenses will be issued(發(fā)行) late next year.”

   We'll also see 3G services enter our daily lives in all-sorts of new ways, from shopping and banking to playing interactive computer games over the net. It won't be long before we think nothing of sitting on a train using a mobile palmtop(掌上型電腦) to check our bank accounts or pay bills. You might even click on an icon(圖標(biāo)) on the screen to set up an immediate video-conference with your bank clerk.

55. 3G is ______.

A. a kind of mobile phone that can send text message and make calls

B. a kind of technology that makes mobile data and video calling come true

C. a kind of player that can be used to listen to CD or MP3 music

D. a kind of system that makes it easy to surf the Internet

56. What does Len Lauer want to inform the readers?

A. Realizing the dream of mobile data based on the application of 3G is a must.

B. There is no need to send messages since 3G can receive video news programs.

C. 3G is supposed to own all the functions that a computer has.

D. It is a choice to carry mobile data with 3G phones.

57. The 3G services can be launched after the following steps EXCEPT that ________.

A. they have to test its 3G-based technologies, networks and services

B. they need to create a group of 3G customers

C. the 3G licenses are issued and 3G phones are tested

D. international telecom companies decide to sell 3G in China

58. The last paragraph shows us that ________.

A. 3G services bring a lot of convenience to us

B. we cannot live without 3G mobile phones

C. 3G services can change our life completely

D. 3G services will take the place of other technologies

59. What is the best title of the passage?

A. Face-to-face Video Calls               B. The Future of 3G

C. The New Telecom Industry--3G         D. The Use of 3G Mobile Phone

練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目：高中英語(yǔ) 來(lái)源：山東省泰安市2012屆高三上學(xué)期期中考試英語(yǔ)試題 題型：050

閱讀理解

　　The US has slipped further down a global ranking of the world's most competitive economies, landing at fifth place because of its huge debts and declining public faith in gov-ernment, a global economic group said Wednesday．

　　The announcement by the World Economic Forum(論壇)was the latest bad news for the Obama administration, which has been struggling to boost(振興)the sinking US economy and lower an unemployment rate of more than 9 percent．

　　Switzerland held onto the top spot for the third year in the annual ranking by the Gene-va-based forum．

　　Singapore moved up to second place, bumping Sweden down to third．Finland moved up to fourth place, from seventh last year．The US was in fourth place last year, after falling from No．1 in 2008．

　　The rankings, which the forum has issued for more than three decades, are based on e-conomic data and a survey of 15,000 business executives(主管)．

　　The forum praised the US for its productivity, excellent universities and flexible labor market．But it also cited“a number of increasing weaknesses”such as rising government debt and declining public faith in political leaders．

　　The results of a survey of 142 nations comes a day before Obama is preparing to deal with jobs issues in a speech to the US Congress, and just as US polls(民意調(diào)查)show a clear majority of those surveyed shy they disapprove of the way Obama is handling the economy．

　　Switzerland held onto its top ranking, the forum said, because of“continuing strong per-formance overall”with innovation, technological readiness, fair regulation and having one of the world'S most stable econoinic environments．

　　Germany, Europe's economic powerhouse, was sixth, followed by the Netherlands and Denmark．Japan came in ninth, and Britain was l0th．

　　The report looked at broader trends：While the US slipped,emerging markets gained improvement．China took 26th place, highest among major emerging markets; Brazil was 53rd; India was 56th; and Russia was 66th．

(1)

The US has slipped down a global ranking because of

[　　]

A．

its increasing unemployment rate

B．

its huge debts and declining public faith in government

C．

the global economic crisis

D．

other countries'rise in economy

(2)

From the text, we know ________．

[　　]

A．

Obama administration has rescued the sinking US economy

B．

the unemployment rate of the US is less than 9 percent this year

C．

most people disapprove of Obama'S way of handling the economy

D．

the US does the best in its productivity and flexible labor market

(3)

According to the text, which of the following ranking is right?

[　　]

A．

Switzerland－Singapore－Sweden－Finland－The US

B．

Switzerland－Singapore－Finland-The US－Sweden

C．

Switzerland－Finland－Sweden－Singapore－The US

D．

Switzerland－Singapore－Finland－Sweden－Germany

(4)

All the followings contribute to Switzerland'S ranking first except

[　　]

A．

innovation

B．

technological readiness

C．

fair regulation

D．

the world's most stable economic environments

(5)

The underlined sentence in the last paragraph probably means that ________．

[　　]

A．

emerging markets develop more quickly than the US relatively

B．

emerging markets will never catch up with the US

C．

emerging markets will boost the sinking US economy

D．

emerging markets develop quickly due to the US slipping

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：廣西陸川中學(xué)2010屆高三下學(xué)期第三次模擬考試 題型：閱讀理解


E
Every year farmers in areas which often suffer flood in Southeast Asia lose millions of tons of rice to high water that kills their crops. That large amount of waste may soon be a thing of the past: SUBIA, a gene discovered by researchers which the International Rice Research Insitule (IRRI) and the University of California, allows rice palnts carrying the gene to live completely under water for two weeks.
Flood – resistant(抗水浸) rice turned up among the 110,000 types of seed stored at the institute. It produced disappointingly low yields(產(chǎn)量) , but scientistis were able to transfer the gene into more bountiful varieties. These have shown promising results in tests by growers in India and Bangladesh over the past two years.
This rice success story would not have been possible without the treasure of genetic diversity hidden in the IRRI’s vault (underground room). As the world faces new agricultural challenge – charging climate, bugs and diseases that have developed resistance(抵抗力) to old defenses – such genetic resources are likely to become increasingly valuable. Fortunately, the IRRI is one of more than 1,000 organizations around the world working to protect crop genes. Most plant species grown for food have an associated bank that stores thousands of samples; seeds of landraces, wild relatives, and varieties that are rare, old, or adapted to very specific envionments. The banks ensure that it will be possible to develop new varieties in the future.
The need for these botanical libraries has its roots in modern agricultural practices. According to the U. N. Food and Agriculture Organization, 75 percent of plant diversity has been lost over the last century. Of more than 30,000 eatable species, humans grow just 200 for food; 60 percent of plant calories in our diet comes from wheat, rice, and corn.
72．Accordint to the second paragraph, what can we learn about the flood – resistant rice?
A．It produces a small amount of rice.
B．Scientists have developed many more varieties of it.
C．Sientists have managed to improve its output.
D．It can produce more rice than the other 110,000 types at the institute.
73．From the passage we can infer that        .
A．the newly – discovered gene will bring hope to the farmers in the areas often suffering flood
B．scientists will not be able to change the fact that rice plants carrying the gene produce low yields
C．the tests by growers in India and Bangladesh were hopeless
D．110,000 types of seed stored at the Institute are flood -  resistant
74．What’s the main idea of the third paragraph?
A．The world faces new agricultural challenges.
B．Such genetic resources are likely to become valuable.
C．Scientists set up banks to store thousands of seed samples.
D．We should owe the rice success story to the seed banks.
75．As to the botanical libraries, the writer thinks they are            .
A．useless      B．unnecessary      C．needful     D．needless

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源： 題型：閱讀理解

E

       Every year farmers in areas which often suffer flood in Southeast Asia lose millions of tons of rice to high water that kills their crops. That large amount of waste may soon be a thing of the past: SUBIA, a gene discovered by researchers which the International Rice Research Insitule (IRRI) and the University of California, allows rice palnts carrying the gene to live completely under water for two weeks.

       Flood – resistant(抗水浸) rice turned up among the 110,000 types of seed stored at the institute. It produced disappointingly low yields(產(chǎn)量) , but scientistis were able to transfer the gene into more bountiful varieties. These have shown promising results in tests by growers in India and Bangladesh over the past two years.

       This rice success story would not have been possible without the treasure of genetic diversity hidden in the IRRI’s vault (underground room). As the world faces new agricultural challenge – charging climate, bugs and diseases that have developed resistance(抵抗力) to old defenses – such genetic resources are likely to become increasingly valuable. Fortunately, the IRRI is one of more than 1,000 organizations around the world working to protect crop genes. Most plant species grown for food have an associated bank that stores thousands of samples; seeds of landraces, wild relatives, and varieties that are rare, old, or adapted to very specific envionments. The banks ensure that it will be possible to develop new varieties in the future.

       The need for these botanical libraries has its roots in modern agricultural practices. According to the U. N. Food and Agriculture Organization, 75 percent of plant diversity has been lost over the last century. Of more than 30,000 eatable species, humans grow just 200 for food; 60 percent of plant calories in our diet comes from wheat, rice, and corn.

72．Accordint to the second paragraph, what can we learn about the flood – resistant rice?

       A．It produces a small amount of rice.

       B．Scientists have developed many more varieties of it.

       C．Sientists have managed to improve its output.

       D．It can produce more rice than the other 110,000 types at the institute.

73．From the passage we can infer that        .

       A．the newly – discovered gene will bring hope to the farmers in the areas often suffering flood

       B．scientists will not be able to change the fact that rice plants carrying the gene produce low yields

       C．the tests by growers in India and Bangladesh were hopeless

       D．110,000 types of seed stored at the Institute are flood -  resistant

74．What’s the main idea of the third paragraph?

       A．The world faces new agricultural challenges.

       B．Such genetic resources are likely to become valuable.

       C．Scientists set up banks to store thousands of seed samples.

       D．We should owe the rice success story to the seed banks.

75．As to the botanical libraries, the writer thinks they are            .

       A．useless      B．unnecessary      C．needful     D．needless

查看答案和解析>>

同步練習(xí)冊(cè)答案