牛津译林版初级中学八年级英语上册 Unit 1 Friends Grammar课件1.ppt

句型结构/关键词： 比较级+than the+最高级 of all among the students in the world （范围 ） Unit 1 Friends Grammar (Ⅰ) comparative and superlative adjectives 形容词的比较级和最高级 the smallest small smaller Compare them The car is ___. The train is _____ than the car. The plane is _________ of all. fast faster the fastest The black and white dog is the happiest of the three(all). The yellow dog is even happier. The white dog is very happy. Compare them The first pig is quite fat. The second pig is much fatter. The third pig is the fattest of all. Compare them 1.When to use comparative? Between 2 things or people. 2.When to use superlative? Among ≥ 3 things or people. Discuss: Please read the table on Page11.And rule out how to form comparatives and superlatives with adjectives. Learning for use 构成方法 原级 比较级 最高级 单音节词和少数双音节词在词尾加-er或-est fast long tall cheap faster longer taller cheaper fastest longest tallest cheapest 形容词的比较级(Comparative)和最高级(Superlative) 构成方法 原级 比较级 最高级 以字母e结尾的形容词,加-r或-st nice safe late nicer safer later nicest safest latest 构成方法 原级 比较级 最高级 重读闭音节词以一个辅音字母结尾时,应先双写该辅音字母,再加-er或 -est big hot thin slim bigger hotter thinnerslimmer biggest hottest thinnest slimmest 构成方法 原级 比较级 最高级 以辅音字母+y结尾的双音节词,先改y为i,再加-er或-est easy happy heavy easier happier heavier easiest happiest heaviest 构成方法 原级 比较级 最高级 其他双音节词和多音节词在前面加more或most beautiful more beautiful most beautiful important more important most important dangerous more dangerous most dangerous frightened more frightened most frightened 不 规 则 变 法 good / well better best bad / ill worse worst many/ much more most little less least far farther farthest further furthest old older/elder oldest/eldest Finish Part A Practice 1. clean cleaner cleanest 2.short shorter shortest 3.cute cuter cutest 4.happy happier happiest 5.lazy lazier laziest 6.big bigger biggest 7. thin thinner thinnest 8. sad sadder saddest 9. difficult more difficult most difficult 10. inte