【2015年秋人教版】八年级英语上册：Unit 3 period 2课件.ppt

The red apple is big. The green apple is _______ the red one. bigger than 56.1kg heavy 58kg Garfield is heavy. Doraemon is ____________ Garfield . heavier heavier than Garfield Doraemon 大多数形容词和副词有三个等级： 原级、比较级、最高级。 一、形容词比较级的构成 1.构成的不规则变化: 2.构成的规则变化: 1. 构成的不规则变化: e.g. good / well – better bad / badly – worse many / much – more little – less far – farther / further 2. 构成的规则变化: 1) 单音节词和少数双音节词一般在词尾 后加-er 构成比较级 . 如： 原级 比较级 cold –—— colder bright——— brighter young—— younger 2) 以字母 e 结尾的词只加 –r 构成 比较级。 原级 比较级 nice ——— nicer fine——— finer large —— larger 3) 重读闭音节词末尾只有一个辅音字母 时, 先双写这个辅音字母, 再加-er或-est。 如: big – bigger thin – thinner 4) 以“辅音字母+ y”结尾的双音节词， 先改y为i, 再加-er或-est。如： easy – easier happy – happier 5) 多音节词和部分双音节词在词前加more 或most。如： delicious – more delicious interesting – more interesting important—more important 讲述某人或某物自身情况时用原级。 基本句型：主语+ 谓语 + 形容词/副词原级 +…. He is very old now. 他现在很老了。 They ran quite fast. 它们跑得相当快。 The weather looks rather bad. 天气看上去相当糟 I am so happy. 我是如此的快乐。 表示两者之间没有差别时,使用句型： 主语(第一个人物) + 谓语动词 + as + 形容词/副词原级 + as + 第二个人物 +…. 如：He is as excited as his younger sister. 他和他妹妹一样兴奋。 Lily rode her bike as slowly as an old lady. 莉莉骑车像老太太一样慢。 They picked as many apples as the farmers (did). 他们摘的苹果和农民一样多。 * Unit 3 I am more outgoing than my sister. Is Tom funnier than Sam? No, he isn’t. Sam is funnier than Tom. Is Sam more hard-working than Tom? Yes. He’s more hard-working than Tom. To learn to compare personal traits of people by using comparatives To learn new words: as, way, both, physics, how