1、Unit 4 Living with technologyExtended readingVirtual realityReality that is not real.Surrounding you with virtual three-D images, sounds and other sensory information.Education; medicine; entertainment shopping and travelling.Time, cost and technical limitations.Endless possibilitiesVR (virtual real
2、ity) means “reality that is not real”.Wearing a VR headset equipped with sensors and a screen, youre surrounded by three-D images, sounds and other sensory information, which creates a super-realistic effect called “presence”. Though you know the sensory information surrounding you is not real, part
3、 of your brain believes it is and acts accordingly.VR is widely used in education, medicine, entertainment, shopping and travelling.The barriers include time, cost and technical Limitations.There are endless possibilities.What other applications of VR do you know about?Lawyers usually use photos to
4、try to explain the mechanics of a crime or an accident to a jury. It is challenging to show the judge and jury what actually happened at a crime scene or at the precise moment of impact during a serious accident. With VR, lawyers are now able to transport them directly into the scene of the crime or
5、 accident.Virtual reality in the courtroom: What other applications of VR do you know about?Athletes use this technology to fine-tune certain aspects of their performance and VR is also used in the design of sporting clothes and equipment, such as running shoes. Virtual reality has been used to impr
6、ove the audiences experience of a sporting event too, like walking through a stadium, or even taking part in a game or an event.Virtual reality in sport:Definitionsa. concerned with practice and action rather than theoryb. suitable for the purpose for which it was made; usefulVocabulary webpractise
7、practicable 1. practical practice practically practicala. concerned with practice and action rather than theoryb. suitable for the purpose for which it was made; useful1) Your invention is interesting, but not very practical.2) Its an interesting idea in theory but there are many practical difficult
8、ies in reality.3) Can you give some examples of the practical applications VR has? (Line 10 P53)b bb ba aDefinitionsa. arrange to employ sb; hire sbb. begin fighting withc. occupy or attract (sbs thoughts, time, etc)d. (of parts of a machine, etc) lock or fit togethere. (cause sb to) take part in or
9、 be occupied in sthf. have agreed to marryVocabulary webengagebe engaged in 2. engage engagedengagementa. arrange to employ sb; hire sbb. begin fighting withc. occupy or attract (sbs thoughts, time, etc)d. (of parts of a machine, etc) lock or fit togethere. (cause sb to) take part in or be occupied
10、in sthf. have agreed to marry1) The two cog-wheels (齿轮齿轮) engaged and the machine started.2) Nothing engages his attention longer than reading novels.3) I have no time to engage in gossip.4) Mary was engaged to be married to Joseph, a carpenter who was two years older.d de ec cf fa. arrange to emplo
11、y sb; hire sbb. begin fighting withc. occupy or attract (sbs thoughts, time, etc)d. (of parts of a machine, etc) lock or fit togethere. (cause sb to) take part in or be occupied in sthf. have agreed to marry5) Our school has engaged a foreign teacher as a spoken English teacher.6) The two armies wer
12、e fiercely engaged for several hours.7) By delivering the content in a meaningful way, this new approach to learning manages to engage students interest and enhance learning efficiency. a ab bc cDefinitionsa. n. either of a pair of children or young animals born of the same mother at the same time b
13、. n. either of a pair of similar, usually matching, thingsc. adj. used to describe two things that happen at the same time and are related to each otherd. v. form a relationship between two places, people, or ideas3. twin a. n. either of a pair of children or young animals born of the same mother at
14、 the same time b. n. either of a pair of similar, usually matching, thingsc. adj. used to describe two things that happen at the same time and are related to each otherd. v. form a relationship between two places, people, or ideas1) Oxford in Britain is twinned with Bonn in Germany.2) The twins were
15、 separated at birth and brought up in entirely different environments.3) The plate was one of a pair, but I broke its twin.d dc ca aa. n. either of a pair of children or young animals born of the same mother at the same time b. n. either of a pair of similar, usually matching, thingsc. adj. used to
16、describe two things that happen at the same time and are related to each otherd. v. form a relationship between two places, people, or ideas4) Would you prefer twin beds or a double bed?5) What if I told you that doctors could create a virtual “twin” in order to practise a delicate surgery before at
17、tempting it on the patient? b bb bDefinitionsa. n. group of plants or organisms produced asexually from one ancestorb. someone or something that looks and behaves exactly the same as someone or something elsec. v. to produce an animal or plant as a clone4. clonea. n. group of plants or organisms pro
18、duced asexually from one ancestorb. someone or something that looks and behaves exactly the same as someone or something elsec. v. to produce an animal or plant as a clone1) They were the first to clone a sheep from adult cells.2) Tom was in some ways a younger clone of his handsome father3) Althoug
19、h two clones are identical genetically, they may develop in different ways.c ca ab ba. n. group of plants or organisms produced asexually from one ancestorb. someone or something that looks and behaves exactly the same as someone or something elsec. v. to produce an animal or plant as a clone4) In s
20、hopping, you can look forward to being able to have your own virtual reality clone try on clothes and to see products with 360 views. b b1. It really boils down to three things time, cost, and technical limitation. We will need time to develop and fine-tune the hardware and software. The initial cos
21、t will discourage most people in the beginning but that should be fixed over time. Time, cost and technical limitationthe initial cost2. Fox example, 5G technology, with its potential to serve up more stable mobile connectivity at faster speed, will make it possible for people to enjoy a more immers
22、ive VR experience wherever they are. (of) 5G technologythe initial costto enjoy a more immersive VR experienceyou are surrounded1. When you wear a VR headset equipped with cameras and sensors, you are surrounded by 3-D images, sounds and other sensory information, which creates a super-realistic eff
23、ect called “presence”. What would you feel if I told2. What if I told you that doctors could create a virtual “twin” in order to practise a delicate surgery before attempting it on the patient? Theyre well equipped3. Theyre well equipped to become part of a technological generation that will develop
24、 and use VR to do things we might think of as impossible today. 1. Revise the core vocabulary.2. Watch the micro lesson: Tips to interview an expert. (Optional)3. Read the text again and discuss the question “What future development do you think VR will have? CP54”(Ss will answer the question next period.)
