英语口语之科技改变生活（课堂PPT）

1、LOGO1Probing into Science2Introduction What is science and technology? Why are we so obsessed with the mystery of science and technology? All our desires may be realized with the help of science and techonology. Double-edged sword3What is Science?vWarm-up Listening4Warm-up Discussionv What are the a

2、dvantages/disadvantages of science and technology?v In your opinion, what is the greatest technological invention? Why?v How will science change the world in the next 100 years?5Science & Technology Science refers to knowledge about the structure and behavior of the natural and physical world, b

3、ased on facts that you can prove, for example by experiments. Technology refers to scientific knowledge used in practical ways in industry, for example in designing new machines.610 inventions that changed the world 1.Electricity It is true that Benjamin Franklin holds the title as the father of ele

4、ctricity, but his invention and discovery was life threatening because he has demonstrated it through the natural lighting using lightening rod that could had caused his life in order to see the electric flow. Hence, there are others who triggered, and did study who had prepared documents and books

5、in order to catch the whole process and technicalities of electric power. Everything in the modern world depends on electricity.72. Light Bulb Who would ever forget the creation of Thomas Alva Edison of an electric light called bulb in 1879 which has caused one of the biggest changes in the world no

6、t just to households, but in running all businesses in the world. It was patented on January 27, 1880, wherein it categorically classified as the first practical light. 83. Refrigeration William Cullen was the first person who initiated and introduced artificial refrigeration in 1748 which he has de

7、monstrated at the University of Glasglow. Oliver Evans improved it when he invented the first refrigeration machine in 1805, and in 1834, the first practical refrigerator was made by Jacob Perkins, then an improvement was done by John Gorrie which he has based from Oliver Evans fridge. 94. The Wheel

8、 Prior to the development of automobile, wheels had served greatly to the progress of vehicles that we are enjoying these days. It started in a primitive axle that served as rollers until the evolution of the functional wheels. In fact, it can be traced back around 3500 B.C. from the Ancient Mesopot

9、amia where oldest wheel can be seen. Hence, the first sets of wheels were used for potters to transport pots, and food which was called as potters wheels. An improvement was done during Sumerians era where they called it as wheeled chariots. Later on gears were added at Middle Age, until Industrial

10、Revolution came where steam engines, railroads, and factories were found.105. Automobile Based on the history, Karl Benz was the first modern inventor of automobile in 1886. Nonetheless, in 1672, the first steam-powered vehicle was designed and introduced by Ferdinand Verbiest while in 1769, the sel

11、f-propelled mechanical vehicle was invented by Nicolas Joseph Cugnot, then in 1807 the first internal combustion engine(内燃机) was made by Nicephore Niepce. In 1881, a 3-wheeled vehicle came into the picture through Gustave Trouve and lastly, Karl Benz from Germany developed his very own four-stroke c

12、ycle gasoline engine. In 1893, the first gas-powered car was invented by Charles Edgar Duyea along with his brother, Frank.116. Printing Press Johannes Guttenberg was the known creator or inventor of printing press. He was a known businessman and goldsmith in Germany. Everything began when he borrow

13、ed specific sum of money in order to invent something that would change the perspective, and flow of printing wherein the original printing press was composed of moveable or replaceable wooden or metal letters which done in 1440. Although, various improvements were made, but definitely, his creation

14、 has triggered to what the technology has to offer in the society today.127. Radio There were people who had made studies, and research with regards to radio transmission. They are James Clerk Maxwell, Heinrich Hertz, Guglielmo Marconi and this became possible through wireless telegraphy. Nonetheles

15、s, majority of the developments and discoveries were done by Guglielmo Marconi who had concocted the wireless transmission, and Mr. J. Vincent Waine who designed the transmitting & receiving equipment.138. Flight and Aviation It began with kites and gliders to check for calculation of the length

16、 of the tunnel, then later on, the discovery of hydrogen that pave the way to the creation of balloons. There were series of attempts prior to serious study of Leonardo da Vinci in 1485 about flight wherein he represented it through drawings. Later on hot air balloons were created by Joseph Michael

17、and Jackson Montgolfier. By 1799 to 1850s, gliders were invented by the father of aerodynamics, George Cayley. The Wright Brothers: Wilbur and Orville Wright. They called their first plane the flying machine. 149. Telephone & Telegraph Because of the ingenious mind of a 29-year old man in 1876,

18、the first telephone was invented by none other than, Alexander Graham Bell and with the assistance of Elisha Gray who had made the design of transmission of communication done through an electronic device. 1510. Computer In fact, it started with a simple abacus which served as an aid for computation

19、. Indeed, from the world itself, computer comes from the root word compute. By 1822, Charles Babbage steam driven calculating machine which was also known as Difference engine where two important components called as store and mill composed of an Analytical engine which are known today as CPU and me

20、mory unit. Harvard Mark I in 1944, then flow-matic, cobol in 1953, and in partnership with IBM, the IBM stretch computer in 1959, and an Apple Computer 1 in 1976 wherein various integrations were added, until monitor, and other devices were created to make it more useful than just for the purpose of

21、 computing.16Changes for Your WorldNew technology helps to save time and human labor.New Technology brings more ways of entertaining.New technology shortens the distance and brings the whole world together.17Electricity Can you imagine the world without electricity ?1.NO TV, No cell phone2. Play gam

22、es outside, and use our imaginations more.3. Transport would be steam-driven, animal-driven or human-powered.4. Lighting would be by flames,candles or lanterns.5. Work was all manual. 6. No Computer to read this.7.181.192.Communication Old times: 1.Write letters, getting no response until weeks late

23、r 2. pass hand-written notes to friends in classNowadays:E-mails.Instant messages.QQ, Skype, or other communication tools. Social network websites to know strangers.1.More convenient to contact each other2.Shorten the distance.3. Best friends online (virtual world), strangers in the real world.4. Me

24、ssages preferred, but not face-to-face talk. Less gatherings of friends.5. Contact more, but less true heart. e.g. Greetings in festivals.203.WorkingvPotentially labor saving technological devicesvWorking from everywhere, SOHO.vEnhanced Flexibility and CapabilityvIncreased EfficiencyvWhat if the dat

25、a stored in the computer lost? vToo dependent on the virtual data!vNo good for health!214.Study1.Resources: Access virtually all information that is publicly available from the comfort of their homes.2. Speed: Gain access to information in far quicker ways.3. Sharing: Information can now be shared b

26、etween staff and students in far more efficient ways.vDisruption, studying while browsing weibovToo dependent on information, less critical thinking1. Students not doing their own homework, more relying on the web 225.Business1.Convinience online-bank, online-shopping, group- buying2. Speed Many pro

27、cesses now moved onto computer systems. 3. Accuracy 4. Confusion Fast pace of operating and complex systems can be confusing5. Crime Embezzle funds and make it difficult for the company to trace;hackers236.EntertainingPlaying chess, Home theater watching play, 3D movie playing Chinese yo yo Video Ga

28、mes Black-white TV, radio, Digital Music.1.Make our life more colorful2.Enjoy the amazing scene or music 1.People wont go outdoor 2. Violence in the video games will do harm to children 3. Addicted to the internet247.Food1.Food Cooking 2.Food Saving1.Food Cooking 2.Food Saving Microwave oven ( Microwave oven (微波炉微波炉) Refrigerator) Refrigerator Soybean milk machine ( Soybean milk machine (豆浆机豆浆机) ) Vacuum packing(Vacuum packing(真空包装真空包装) ) Yogurt machine Yogurt machine （酸奶机）（酸奶机） Kitchen Stove Kitchen Stove （炉灶）（炉灶） 1.Preparing more quickly.