Mobile phones have a long and varied history that stretches back to the 1950s, with hand-held devices being available since 1983．Due to their low establishment costs and rapid development, mobile pho 题目和参考答案——青夏教育精英家教网—

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　　Mobile phones have a long and varied history that stretches back to the 1950s, with hand-held devices being available since 1983．Due to their low establishment costs and rapid development, mobile phone networks have since spread rapidly throughout the world．Such networks can often be economic, even with a small customer base, as mobile network costs are mostly call volume related, while fixed-line telephony has a much higher subscriber related cost component．

　　In most of Europe, wealthier parts of Asia, and Australasia, mobile phones are now virtually universal, with the majority of the adult, teenage, and even child population owning one．They are less common in the United States than elsewhere in the developed world．Reasons advanced for this include incomplete coverage, a mixture of incompatible technical standards, relatively high minimum monthly service charges(around 30), and the availability of relatively low-cost fixed-line networks(around 30 for unlimited local calling)．Prepaid or pay as you go services, common elsewhere, are far less common in the U．S．, and are much more expensive than comparable services in other countries．Furthermore, text messaging was not a standard feature in North America until recently, and unlike in most other countries, the ability to use international roaming is still rare．The shortage of telephone numbers in the North American Numbering Plan(NANP), and the lack of non-regional special telephone numbers for mobile services, means that the pricing system used elsewhere cannot be used, and as a result users pay to receive calls, discouraging cell phone use．The same technical issues affect mobile telephony in Canada, as it uses the same mix of incompatible standards as does the U．S．, and is also part of the NANP．

(1)

Mobile phone networks have spread rapidly throughout the world because of ________．
[　　]
A．	the convenience and the low service fees
B．	the low establishment costs and rapid development
C．	the influence from the advanced countries'
D．	the demand of the usage of this technology

(2)

How many reasons are given to explain why mobile phones are less popular in the United States?
[　　]
A．	Two
B．	Three
C．	Four
D．	Five

(3)

Which of the following is among the countries or areas where mobile phones are used less popularly?
[　　]
A．	Korea
B．	Japan
C．	Australasia
D．	Canada

(4)

What is the technical issue that affects mobile telephony in Canada?
[　　]
A．	Itis short of such kind of experts in this field．
B．	It is influenced by some advanced countries like the U．S．
C．	It uses the same mix of incompatible standards as does the U．S．
D．	It can't be absorbed as part of the NANP．

(5)

We can know from this article that ________．
[　　]
A．	Mobile phones now have been as popular as fixed-line telephony everywhere
B．	Fixed-line telephony will surely be replaced by mobile phones one day
C．	The popularity of the mobile phones can't fully prove the prosperity of a country
D．	The service charges of mobile phones are cheaper than fixed-line telephony

答案：1．B;2．C;3．D;4．C;5．C;

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阅读下列短文，从每题所给的四个选项中选出最佳选项。

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阅读理解

　　When I asked my daughter which item she would keep：the phone, the car, the cooker, the computer, the TV, or her boyfriend, she said “the phone”．Personally, I could do without the phone entirely, which makes me unusual．Because the telephone is changing our lives more than any other piece of technology．

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