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课件网) 新人教八年级上册 Grammar Focus Unit 4 Amazing Plants and Animals By the end of the lesson you will be able to: explain different ways to form superlatives. change adjectives/adverbs into their correct superlative forms. create a “Top-5 Nature Records” poster using at least five accurate superlatives. Learning objectives Lead-in Today we are the new editorial team. Our first job is to find the planet’s record-breakers. Question 1: What’s the largest and heaviest animal in the world the blue whale Question 2: What’s the biggest land animal in the world the African elephant Question 3: Which animal runs the fastest among all land animals the cheetah Question 4: What’s the most useful plant in the world bamboo We use _____ to compare more than two things. We usually can see _____ in a superlative sentence. 3a Read the sentences and notice the words in bold. Presentation superlatives large → heavy → big → What are the ways to form a superlative adjective or adverb fast → useful → interesting → largest heaviest biggest fastest most useful most interesting 形容词和副词的最高级 大多数形容词和副词有三个等级：原级，即原形；比较级，表示“较……”或“更……一些”；最高级，表示“最”。 The apple is big. The apple is bigger than that one. The apple is the biggest of all. 最高级 单词类型 构成方法 例词 单音节词和部分双音节词 一般情况在词尾+est long→longest short→shortest 以不发音的e结尾的，直接+st nice→nicest large→largest 重读闭音节词且词尾只 有一个辅音字母, 双写末尾辅音，再加-est big→biggest hot→hottest 以 “辅音字母+y”结尾的双音节词, 变y为i, 再加-est busy→busiest friendly→friendliest 多音节词和部分双音节词 词前加most quickly→most quickly interesting→most interesting 1. 形容词或副词的最高级的规则变化 2. 形容词或副词的最高级的不规则变化 原级 比较级 最高级 good/ well better best bad/ badly worse worst many/much more most little less least far farther/further farthest/furthest 口诀助记： 最高级很容易, 原级后面加-est。 规则同于比较级, 注意一点便可以。 部分双音、多音节, 最高级前要加most。 若是副词最高级, 用不用the皆可以。 a.三者或三者以上之间的比较 3. 形容词和副词的最高级的用法及句型 基本结构为: 主语+be动词+the+形容词最高级+表示范围的短语或从句; 主语+实义动词+(the)+副词最高级+表示范围的短语或从句。 The cheetah runs (the) fastest among all land animals. 猎豹在所有陆地动物中跑得最快。 Bamboo is the most useful plant in the world. 竹子是世界上最有用的植物。 Which is the most beautiful, the rose, the peony, or the lotus flower 玫瑰、牡丹和莲花，哪一种最美丽 Which/Who is + the+最高级，A, B or C b.在三者或三者以上中选择 Ginkgo trees are one of the oldest living trees on earth. 银杏树是地球上现存最古老的树木之一。 one of the + 形容词最高级 + 可数名词复数 c.最…… 之一 为了更准确地表达最高程度，可以用“by far”（最……；显然） ，“nearly”（几乎），“almost”（几乎）等来修饰形容词和副词的最高级。 d.修饰最高级 在表达“第二、第三最……”时，结构为:the+序数词+最高级。 The Amazon River is t ... ...
