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Người gửi: Nguyễn Thị Huyền
Ngày gửi: 22h:46' 18-09-2010
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WARM- UP
Look at the pictures. In pairs, ask and answer the following questions:
Do you often connect with everyone? And how do you do that?
List some names of machines to connect and say how do you feel about them?
Does the effective communication play a important role in our life? Why?


  
  



And then play an interesting game: do the crossword


























































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Global communication with www or internet button
3d rendered image of envelopes in different forms.
One of means to connect popular today
An electrical connection
An assembly for discussion
A similarity connecting people
Passage 1
Exercise 1: Read the passage and choose the most suitable headings for paragraphs 1-5 from the List of headings below. There is one extra heading which you do not need to use.


1……………………………
Motorola`s success in cellular had its roots in the company`s earlier research. Born as the Galvin Manufacturing Corporation in Chicago in 1928, the company was a radio communications pioneer. The company produced its first Motorola-branded car radio in 1930, followed soon after by radios for public safety officers. In 1940 Motorola developed its first handheld radio - the Handie-Talkie™ portable two-way radio, designed for the U.S. military. Motorola had a mobility mindset dedicated to making communications available where and how people needed them.

2. ………………………………
Beginning in 1946 when radiotelephone service began in the U.S., the company produced mobile telephones in cars or "car phones," as they came to be called. However, problems with car radiotelephone systems emerged as their popularity grew. Due to the limited number of available frequencies, car phone systems allowed only a few calls at one time. In 1968, the U.S. Federal Communications Commission (FCC) proposed to allocate frequencies in the 800-900 MHz range for a new technology to solve these problems. Cellular technology, conceptualized by Bell Laboratories (AT&T) years earlier, was a possible solution. By the early 1970s, AT&T and Motorola both announced plans for high-capacity mobile telephone systems based on cellular technology.
3. ………………………………..
When Motorola engineers began researching cellular technology, they soon recognized its potential. But their vision went far beyond car-based phone technology. "When you park your car and leave, you can`t use your mobile (car phone) but you can take your portable with you," stated Martin Cooper, who was one of the leaders in early cellular development at Motorola. The company`s idea was a big one: It would involve not only creating a portable wireless phone, but also building the system and infrastructure to support it. By February of 1973, Motorola had produced a working DynaTAC (DYNamic Adaptive Total Area Coverage) portable phone prototype. They presented the DynaTAC prototype phone and system concept, which soon announced that it would hold new hearings on allocating spectrum for cellular service.
4. ………………………………..
The Motorola engineering team`s concept involved designing a large number of overlapping cells in a geographic area. Low powered transmitters in each cell allowed frequencies to be reused in cells farther away. Computerized network equipment tracked the moving caller through the system and automatically switched the call to a new cell and frequency as the caller changed locations. The system automatically adjusted the phone`s transmitting power so it would not interfere with neighboring cell sites and linked the call with the wire line telephone network. Specialized directional antennas focused the radio signal where it was needed. The DynaTAC cellular radiophone system`s unique features created a complete system tailored to the needs of both car and portable phones.
5. ……………………………….
On September 21, 1983, Motorola made history when the FCC approved the DynaTAC 8000X phone, the world`s first commercial portable cell phone. After more than 10 years and a US$100 million investment, Motorola`s commitment produced an innovative portable technology that revolutionized the communications industry and changed the lives of people around the world.

( http://www.motorola.com/staticfiles/Business/Corporate/US-EN/history/feature-cell-phone-development.html)

Exercise 2: Match the word with its meaning.

6. Pioneer A. a standard or typical example
7. Allocate B. person who helps to open up a new line of research or technology or art
8. Prototype C. a broad range of related objects
9. Spectrum D. covering with a design in which one element covers a part of another
10. Overlapping
 
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