Unit 3《Tomorrow's World》world power課件25(15張ppt)（牛津譯林版必修4）

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Unit 3 Tomorrow’s world,Word power,Finish the sentences with the right words:,Many wild animals ______________ because people have destroyed their living environment. We have to take some actions to prevent the ___________ of wild animals. (disappearance; disappear) The new motorway between the two cities has finally __________. It’s good news for people who have to travel a lot there. The manager made a speech at the __________ ceremony of the supermarket. (open; opening) Thanks to his ___________, we are all saved, and all of us think he is such a _______ person. (kind; kindness) The man carried the boy to __________ as the train come over, and the boy was _________ at last. (safe; safety),disappearance,have disappeared,opened,opening,kindness,kind,safety,safe,What’s an abstract noun?,an abstract noun : a noun that refers to an idea, an action, a general quality or something that we can’t see or touch directly. Such as disappearance,opening,kindness and safety.,,Group 1: verbs→abstract nouns,training/feeling,pressure/failure,performance/entrance,preference/difference,movement/development,discussion/connection,information/presentation,Group 2: adjectives→abstract nouns,,,,kindness,safety,reality,Try to think about more similar examples!,Tips: We sometimes need to change the final letter(s) of a word before adding the suffix:,-e+tion,-de+sion,-e+ure,-t+ce,-y+iness,Additional information,Most abstract nouns are uncountable, only a few of them are countable: hope→a hope; idea→a idea; situation→a situation,More examples:,1.He had been a talented musician in his youth. 2.The fight was started by a gang of youths. 3.He has the power to make things unpleasant for us. 4.The USA is among the world powers. 5.The woods are considered to be an area of natural beauty. 6.She had been a beauty in her day.,年輕,年輕人,能力,強(qiáng)國,美麗,美人,Exercise(P46),Answers: 1.development 2.popularity 3.failure 4.connection 5.improvements 6.presentation 7.achievement 8.admiration,Words related to computers,Try to recognize the different parts of computers in the picture:,,,,,,,speaker,,monitor,printer,CD-Rom /DVD-Rom,screen,,keyboard,mouse,,,,U-Disk,Floppy disk,,Hard driver,,CD-ROM / DVD-ROM drive,,Floppy disk driver,,Mouse mat,Practice: Use some of the words in the picture and the words in the box to complete the poster:,Answers: 1.keyboard 2.mouse 3.data 4.floopy disk 5.CD-ROMs 6.CPU 7.connect 8.e-mails 9.information 10.Web,more words related to computers,If we haven’t_____________, we can’t enjoy the beautiful music by computers. If we want to surf online, we just need to connect the computer with cables by____________. Your photos are so beautiful, and I can use the _________ to copy them into my computer. Sometimes the information in the floppy disk is easy to be destroyed, so we can use a _________ to store the information for a long time.,Choose the right words to complete the sentences:,scanner, sound card, CD-writer, network card,sound card,network card,scanner,CD-writer,Homework,Revise what you have learned in this period. Preview Grammar.,同學(xué)們,來學(xué)校和回家的路上要注意安全,同學(xué)們,來學(xué)校和回家的路上要注意安全,