Third – generation mobile phones, known as 3G, are the next big step for the electron industry. Data spec in 3G networks are much quicker than present technology. This means users can have high-speed Internet access and enjoy video and CD-quality music on their phones.

“Mobile data is not a dream; it’s not an option 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 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.

Face-to-face video calls

And 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.

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 license 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 of the service,” said Fan Yunjun, marketing manager for Beijing Mobile. “We expect that the 3G licenses will be issued late next year.”

1.Which 3G, you can do the following EXCEPT      .

       A.find your way easily      

       B.learn what’s going on in the world

       C.make your computer run faster      

       D.make face – to – face video telephone calls 

2.According to the text, which function of the following makes 3G technology most extraordinary?

       A.It can provide video news programs, updated four times a day.

       B.Users can have face – to – talks with friends and family on their mobile phones.

       C.Users can enjoy video and CD – quality music on their phones.

       D.It’ll be easier for users to surf the Web on their phone than on their computers at home.

3.Which of the following is true according to the passage?

       A.3G mobile phones were first used in America.

       B.Foreign telecom companies won’t enter China.

       C.3G technology is now at the commercial stage in China.

       D.Users in China won’t probably use 3G mobile phones until late next year.

4.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.

Can trees talk? Yes, but not in words. Scientists have reason to believe that trees do communicate (交际) with each other. Not long ago, researchers learned some surprising things. First a willow tree attacked in the woods by caterpillars (毛虫) changed the chemistry of its leaves and made them taste so terrible that they got tired of the leaves and stopped eating them. Then even more astonishing, the tree sent out a special smell---a signal (信号) causing its neighbors to change the chemistry of their own leaves and make them less tasty.

Communication, of course, doesn’t need to be in words. We can talk to each other by smiling, raising our shoulders and moving our hands. We know that birds and animals use a whole vocabulary of songs, sounds, and movements. Bees dance their signals, flying in certain patterns that tell other bees where to find nectar (花蜜) for honey. So why shouldn’t trees have ways of sending message?

1.It can be concluded from the passage that caterpillars do not feed on leaves that ______.

  A.are lying on the ground       B have an unpleasant taste

  C.bees don’t like              D have an unfamiliar shape

2.The willow tree described in the passage protected itself by ______.

A.changing its leaf chemistry      

B.communicating with birds and bees

C.growing more branches  

D.shaking caterpillars off

3.According to this passage, bees communicate by ______.

  A.touching one another           B.making special movement

  C.smelling one another            D.making unusual sound

4.The author believes that the incident described in the passage ______.

  A.cannot be taken seriously       B.should no longer be permitted

  C.seems completely reasonable    D.must be checked more thoroughly 

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