(
课件网) Unit 4 Inventions 主题范畴： 人与社会 主题群： 科学与技术 子主题： 科学技术与工程，人类发明与创新 Key question What makes an invention great understand some irregular adjective forms; grasp the structure and usage of “(not) as ... as”； use “(not) as ... as” with many+countable nouns and much+uncountable nouns to compare amounts； combine the irregular adjective forms and “(not) as ... as” structure to talk about some great inventions. Learning objectives 学习目标 At the end of the class, I’ll be able to: Comparative and superlative adjectives 原级 比较级 最高级 即原形，形容词原义 表示较高程度的含义 表示最高程度的含义 adj. comparatives + ____ _____ + superlatives 形容词比较级和最高级的构成分为规则变化和不规则变化。 than the Review Read the passage and pay attention to the words in bold. Many inventions make people’s lives better. For example, the invention of the wheel allowed people to travel farther distances. However, there are bad inventions too. A magazine once picked the top ten worst inventions in human history, such as cigarettes and plastic bags. Many people think these inventions make the world a worse place to live in. 形容词的不规则变化： good, bad and far 1. My English is good, and my sister’s is better, and my brother’s is the best. 2. This novel is bad. That one is worse and it is one of the worst books I’ve ever read. 3. Our school is not far from here. The hospital is farther/further down the road. The book shop is the farthest/furthest from here. Observe the sentences and try to complete the table. Adjective Comparative adjectives Superlative adjectives good bad far better best worse worst farther /further farthest /furthest farther和further都是far的比较级，表示“（空间、距离或时间上）更远的；较远的”时，两者可以相互转换。 farther和further的异同 ① Cook for a father/further 2 minutes. ② The father/further hill is five kilometres away. 再煮两分钟。 那座更远的小山在五公里以外。 Attention ① We have decided to take no further action. ② Have you any further questions 我们决定不采取进一步行动。 你还有问题吗？ 最高级the farthest/furthest的用法和比较级的用法类似。 (2) further可以用于抽象概念的比较，表示“（程度上）更进一步的；更深远的”，farther则没有这个意思。 Look at the school report below. In pairs, ask and answer questions about it. 1. S1: Who _____ in Art, Belinda or Daisy (good) S2: _____ 2. S1: Who _____ in Art (good) S2: _____ got a better mark Daisy got a better mark in Art than Belinda. got the best mark Alice got the best mark in Art. Example: Practice 3. S1: Who _____ in Science, Paul or Martin (good) S2: _____. 4. S1: Who _____ in Science, Eric or Alice (bad) S2: _____. got a better mark Paul got a better mark in Science than Martin got a worse mark Eric got a worse mark in Science than Alice Look at the map below. In pairs, ask and answer questions about it. Follow the example. Whose home …, Alice’s or Daisy’s S1: Whose home is farther/furth ... ...
