Unit 4 词汇课件-2021-2022学年高中英语北师大版必修二

Unit 4 1 Step 1 Ask and answer Step 2 Learn new words Lesson 1 &2 likely concept chart focus skip fist waist nail gallery cyberspace come true artificial climate global flood virtual reality virus affect rapidly growth pessimitic optimistic crime hacker terrorist attack chaos crash entertainment disappear harm obvious destruction scientific network hang on be up to fashion fancy suggestion reject arrangement project get in touch likely focus on focus ......on fix...on pay attention to Step 3 Analyse likely、probable、 posible virus affect affection effect infect Step 3 Analyse novel coronavirus pneumonia a computer virus a flu virus crime criminal terrorist terror terrify terrorism Step 3 Analyse optimistic optimistically pessimistic Step 3 Analyse scientific fashion fashionable out of fashion in fashion Step 3 Analyse scientifically science scientist fancy destruction construction destroy construct Step 3 Analyse +{ n. pron. v-ing arrangement arrange Step 3 Analyse Step 4 Find out a right word to match the following definitions. 1.a person who enters other people's computer programmes in secret_ 2.the use of computers to make situations feel and look real _ 3.someone who does terrible things to harm countries, goverments and people _ 4.computer system that allows millions of people around the world to share information _ 5. a terrible situation in which everything goes wrong _ hacker virtual reality terrorist the Internet chaos Step 5 Fill in the blanks with proper words. 1._ (obvious), we don't want to spend too much money on the project. 2.The company paid out over $10 million in an out-of-court _ (settle). 3.The chief engineer together with his colleagues has been looking for new _ (science) methods of farming since five years ago. 4.These plays were a popular form of _ (entertain) in the 1920s and 1930s. 5.They provide an environment where you can practice under the _ (guide) of someone who's good at the language. Obviously settlement scientific entertainment gu