(
课件网) Section 2 Grammar Unit 3 Our digital lives 学习目标 I can talk about the history of computers, understand how digital technology changes our lives. improve my digital literacy. analyse the positive and negative effects of the internet on daily life 01 新 课 导 入 03 应 用 实 践 06 回 顾 总 结 07 随 堂 小 练 02 学 习 理 解 04 迁 移 创 新 05 考 点 速 递 学习内容 新课导入 1 (city/big) Shanghai is bigger than Hongkong. Which city is bigger, Hongkong or Shanghai Look and say the Yellow River the Yangtze River (river/long) The Yangtze River is longer than the Yellow River. Which river is bigger, the Yellow River or the Yangtze River？ Linda Nancy Kate Linda is _____ girl of the three. Nance is _____ than Kate. the tallest taller Look and say Who is taller Who is the tallest ￥ 50.00 ￥ 100.00 ￥ 150.00 The purple bag is _____ one of all the bags. The green bag is _____ than the bule one. more expensive the most expensive Which is more expensive Which is the most expensive the Sahara It’s about 9,600,000 square kilometers in size. Which desert is the largest in the world how large is it Who can answer most quickly and correctly The Yangtze River It is about 6,300 kilometers long. What is the second longest river in the world How long is it？ Who can answer most quickly and correctly What is the longest wall in the world The Great Wall. How long is it？ It’s about 8,850 kilometers long. It’s the longest wall in the world. Who can answer most quickly and correctly 学习理解 02 Comparative and superlative adjectives When we compare two people or things, we can use the comparative form of the adjective. When we compare more than two people or things, we can use the superlative form of the adjective. Read the dialogue between Su Mei and Su Wen. Pay attention to the words in bold. Su Mei: Oh, what's this Su Wen: It's a computer from the 1940s. You know what The first computers were bigger than cars. Nowadays, computers are much smaller and better. Su Mei: I see. Besides size, what else is different Su Wen: Computers today are much faster than before. Su Mei: That must be true. Some computers are even smarter than human beings. Su Wen: No, I don't think so. I think human beings are the smartest. After all, we invented computers. big bigger biggest smart smarter smartest interesting more interesting most interesting adjective comparative adjective superlative adjective To form comparative adjectives, we often add -er to an adjective with one or two syllables and use more with adjectives of three or more syllables. We often use than after comparative adjectives. To form superlative adjectives, we often add - est to an adjective with one or two syllables and use most with adjectives of three or more syllables. We usually use the before superlative adjectives. 构成 比较级形式 例词 单音节形容词 大多数单音节形容词 + -er high → higher small → smaller 以-e结尾 + -r large → larger wide → wider 一个 ... ...
