[单项选择]Right now, Internet phone calls are typically made on a computer, using a special headset or on a phone with a special adaptor. Increasingly, they can also be made over mobile phones, using Wi-Fi technology. Eventually, the companies say, they will be available on all devices, from televisions to iPods to appliances like refrigerators. The idea is that screens and voice technology will be everywhere, bringing your calls to you wherever you happen to be. And the old notion that a phone number is linked to a specific place is about to disappear. Already, someone in Mumbai can purchase a number with a Manhattan area code and carry it with him wherever he goes. Road warriors can get local, rather than long-distance, dialing rates by making calls with their laptops. The Internet is free, and the technologies it is based on are open. That also makes it easier and cheaper for the new telephone companies to offer expanded features. Voice greetings could be customized to each caller, and a diff

[单项选择]Right now, Internet phone calls are typically made on a computer, using a special headset or on a phone with a special adaptor. Increasingly, they can also be made over mobile phones, using Wi-Fi technology. Eventually, the companies say, they will be available on all devices, from televisions to iPods to appliances like refrigerators. The idea is that screens and voice technology will be everywhere, bringing your calls to you wherever you happen to be. And the old notion that a phone number is linked to a specific place is about to disappear. Already, someone in Mumbai can purchase a number with a Manhattan area code and carry it with him wherever he goes. Road warriors can get local, rather than long-distance, dialing rates by making calls with their laptops. The Internet is free, and the technologies it is based on are open. That also makes it easier and cheaper for the new telephone companies to offer expanded features. Voice greetings could be customized to each caller, and a diff

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From whom does the man often receive phone calls
A. His parents.
B. His classmates.
C. His friends.

[单项选择]Answering mobile phone calls while you are at a work meeting is not only discourteous, but it can also destroy the ______ of the meeting.
A. capableness
B. efficacy
C. facts
D. impression

[单项选择]

If phone calls and web pages can be beamed through the air to portable devices, then why not electrical power, too It is a question many consumers and device manufacturers have been asking themselves for some time. But to seasoned observers of the electronics industry, the promise of wireless recharging sounds depressingly familiar. In 2004 Splashpower, a British technology firm, was citing “very strong” interest from consumer-electronics firms for its wireless charging pad. Based on the principle of electromagnetic induction (EMI) that Faraday had discovered in the 19th century, the company’s “Splashpad” contained a coil that generated a magnetic field when a current flowed through it. When a mobile device containing a corresponding coil was brought near the pad, the process was reversed as the magnetic field generated a current in the second coil, charging the device’ s battery without the use of wires. Unfortunately, although Faraday’s
A. To turn the Faraday’s theory into profitable practice
B. To find ways for the consumer-electronics industry
C. To integrate consumer-electronics firms and chipmakers
D. To promote a common standard for inductive wireless charging