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Task5: Speak                            Is it really interesting and useful to invent anything? Why?Are you ambitious enough to invent anything useful? What it will be?

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Task5: Speak                            Is it really interesting and useful to invent anything? Why?Are you ambitious enough to invent anything useful? What it will be?

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Task 7:Grammar                   The use of passive voice to talk about inventions 

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Task 7:Grammar                   The use of passive voice to talk about inventions 

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Passive voice online worksheet for high school. You can do the exercises online or download the worksheet as pdf.

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Task4: Watch the video       The Hollywood Actress Who Invented WiFi

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Task4: Watch the video       The Hollywood Actress Who Invented WiFi

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Hedy Lamarr, hollywood actress, is known for more than her acting-- she invented a signal-hopping technology used in Wi-Fi.

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Unlike technologies such as the light bulb or the telephone, the internet has no single "inventor." Instead, it has evolved over time. The internet got its start in the United States more than 50 years ago as a government weapon in the Cold War. For years, scientists and researchers used it to communicate and share data with one another. Today, we use the internet for almost everything, and for many people it would be impossible to imagine life without it.

The Sputnik Scare

On October 4, 1957, the Soviet Union launched the world's first manmade satellite into orbit. The satellite, known as Sputnik, did not do much: It relayed blips and bleeps from its radio transmitters as it circled the Earth. Still, to many Americans, the beach-ball-sized Sputnik was proof of something alarming: While the brightest scientists and engineers in the United States had been designing bigger cars and better television sets, it seemed, the Soviets had been focusing on less frivolous things-and they were going to win the Cold War because of it.

Did you know? Today, almost one-third of the world's 6.8 billion people use the internet regularly.

After Sputnik's launch, many Americans began to think more seriously about science and technology. Schools added courses on subjects like chemistry, physics and calculus. Corporations took government grants and invested them in scientific research and development. And the federal government itself formed new agencies, such as the National Aeronautics and Space Administration (NASA) and the Department of Defense's Advanced Research Projects Agency (ARPA), to develop space-age technologies such as rockets, weapons and computers.

The Birth of the ARPAnet

Scientists and military experts were especially concerned about what might happen in the event of a Soviet attack on the nation's telephone system. Just one missile, they feared, could destroy the whole network of lines and wires that made efficient long-distance communication possible.

In 1962, a scientist from M.I.T. and ARPA named J.C.R. Licklider proposed a solution to this problem: a "galactic network" of computers that could talk to one another. Such a network would enable government leaders to communicate even if the Soviets destroyed the telephone system.

In 1965, another M.I.T. scientist developed a way of sending information from one computer to another that he called "packet switching." Packet switching breaks data down into blocks, or packets, before sending it to its destination. That way, each packet can take its own route from place to place. Without packet switching, the government's computer network-now known as the ARPAnet-would have been just as vulnerable to enemy attacks as the phone system.

"LOGIN"

On October 29, 1969, ARPAnet delivered its first message: a "node-to-node" communication from one computer to another. (The first computer was located in a research lab at UCLA and the second was at Stanford; each one was the size of a small house.) The message-"LOGIN"-was short and simple, but it crashed the fledgling ARPA network anyway: The Stanford computer only received the note's first two letters.

The Network Grows

By the end of 1969, just four computers were connected to the ARPAnet, but the network grew steadily during the 1970s.

In 1971, it added the University of Hawaii's ALOHAnet, and two years later it added networks at London's University College and the Royal Radar Establishment in Norway. As packet-switched computer networks multiplied, however, it became more difficult for them to integrate into a single worldwide "internet."

By the end of the 1970s, a computer scientist named Vinton Cerf had begun to solve this problem by developing a way for all of the computers on all of the world's mini-networks to communicate with one another. He called his invention "Transmission Control Protocol," or TCP. (Later, he added an additional protocol, known as "Internet Protocol." The acronym we use to refer to these today is TCP/IP.) One writer describes Cerf's protocol as "the 'handshake' that introduces distant and different computers to each other in a virtual space."

The World Wide Web

Cerf's protocol transformed the internet into a worldwide network. Throughout the 1980s, researchers and scientists used it to send files and data from one computer to another. However, in 1991 the internet changed again. That year, a computer programmer in Switzerland named Tim Berners-Lee introduced the World Wide Web: an internet that was not simply a way to send files from one place to another but was itself a "web" of information that anyone on the Internet could retrieve. Berners-Lee created the Internet that we know today.

Since then, the internet has changed in many ways. In 1992, a group of students and researchers at the University of Illinois developed a sophisticated browser that they called Mosaic. (It later became Netscape.) Mosaic offered a user-friendly way to search the Web: It allowed users to see words and pictures on the same page for the first time and to navigate using scrollbars and clickable links.

That same year, Congress decided that the Web could be used for commercial purposes. As a result, companies of all kinds hurried to set up websites of their own, and e-commerce entrepreneurs began to use the internet to sell goods directly to customers. More recently, social networking sites like Facebook have become a popular way for people of all ages to stay connected.

HISTORY Vault: 101 Inventions That Changed the World

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The Invention of the Internet - Inventor, Timeline & Facts

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The Internet got its start in the United States more than 50 years ago as a government weapon in the Cold War. Unlike technologies such as the light bulb or the telephone, the Internet has no single "inventor." Instead, it has evolved over time.

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Task 3: Read the definition of the modern device and try to guess what gadget it is.

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Task 3: Read the definition of the modern device and try to guess what gadget it is.

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1)    A piece of electronic equipment which you use to listen to programs that are broadcast, such as music and news.

2)    A piece of equipment used to take photographs or make films or television program.

3)    A type of oven that cooksfood very quickly using very short electrical waves instead of heat.

4)    The system of communication that you use to have a conversation with someone in another place.

5)    An electronic machine that stores information and uses programs to help you find, organize or change information.

6)    A machine for washing clothes.

7)    A large piece of electrical kitchen equipment shaped like a cupboard, used for keeping food and drink cool.

8)    The glass part of an electric light that the light shines from.

9)     A vehicle that flies in the air and has wings and at least one engine.

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•	What modern inventions do you have at home?
•	What is the most useful thing for your mother?
•	Which device can’t you do without?
•	What thing can’t your father live without?
•	What gadget do you use every day?
•	What thing can you easily do without?
•	What is the most useless thing in your household?
•	What is your favourite device and why?

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Task1: Guess a riddle and name an invention

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Task1: Guess a riddle and name an invention

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It may bring you closer to those who are far away,But it will also take you away from those sitting next to you.Teens are crazy about it, but it makes parents and teachers become angry. You use it all the time to text, to talk and to send secret messages.