高中英语必修4Unit 3 Tomorrow’s world--word power

Unit 3 Tomorrows worldWord PowerTeaching objectives:1. To learn how to form abstract nouns from verbs and adjectives by adding suffixes.2. To know some words related to computers and to apply them practically.Teaching procedures:I Forming abstract nouns from verbs and adjectivesStep 1 Lead-inFinish the sentences with the words in blanket.1. Many wild animals _ have disappeared because people have destroyed their living environment. We have to take some actions to prevent the _ of wild animals. (disappearance; disappear)2. The new motorway between the two cities has finally _. Its good bews for people who have to travel a lot there.The manager made a speech at the _ ceremony of the supermarket. (open; opening)3. Thanks to his _, we are all saved, and all of us think he is such a _ person. (kind; kindness)4. The man carried the boy to _ as the train come over, and the boy was _ at last.Step 2 IntroductionMake comparison between individual nouns and abstract nouns.Tip: an abstract noun is a noun that refers to an idea, an action, a general quality or something that we cant see or touch directly.Step 3 Forming rulesGroup 1:verbsabstract nounsMore examples: verb+ing (feelfeeling)Verb+ure (failfailure)Verb+ance(enterenterance)Verb+ence(differdifference)Verb+ment(developdevelopment)Verb+ion (connectconnection)Verb+ation(presentpresentation)Group 2:adjectivesabstract nounsMore examples:adj.+ty (cruelcruelty)Adj.+ness(illillness)Tips:Sometimes we need to change the final letters of a word before adding suffix:produceproduction silentsilencedecidedecision prettyprettinesspleasepleasureStep 4 Additional informationMost abstract nouns are uncountable, only a few of them are countable:hopea hope; ideaa idea; situationa situationyouth(青春)a youth（青年人）;power（电力）a power（大国）；beauty（美丽）a beauty（美人，美的东西）Step 5 Exercise(P46)IIWords related to computersStep 1 revisionHave Ss look at the picture and revise names of some parts of the computer.(screen, monitor, speaker, keyboard, mouse, CD-Rom, printer)Step 2 Words expandTeach Ss to learn more words related to computers, especially the most up-to-date hardware: (hard drive, floppy disk, floppy disk drive, U-Disk, ROM, RAM, CPU)Step 3 practiceFinish the exercise to apply these words practically.Step 4 more words related to computersChoose the right words to complete the sentences:scanner, sound card, CD-writer, network card1) If we havent sound card, we cant enjoy the beautiful music by computers.2) If we want to surf online, we just need to connect the computer with cables by network card.3) Your photos are so beautiful, and I can use the scanner to copy them into my computer.4) Sometimes the information in the floppy disk is easily to be destroyed,