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课件网) Section A What can plants and animals do Unit 4 Amazing Plants and Animals Grammar Focus 通过本节课的学习，同学们将能： 1．理解并掌握形容词和副词最高级的构成方式与用法。 2．正确运用形容词和副词最高级进行句子表达。 3．通过观察、总结最高级的构成规则以及在不同语境中运用最高级， 提升归纳总结能力和逻辑思维能力，自主分析新语境中最高级的正确 用法。 4．学会通过课堂练习、小组合作等方式巩固知识，掌握自我 检测和纠错的方法，逐步养成自主学习和合作学习的习惯。 学习目标 Warming up Read the sentences and notice the words in bold. What are the ways to form a superlative adjective or adverb The blue whale is the largest and heaviest animal in the world. The biggest land animal in the world is the African elephant. The cheetah runs the fastest among all land animals. I think the most useful plant in the world is bamboo. It is perhaps the most interesting plant in the world. 3a Grammar Focus 1.用法：表示三者或三者以上(人或事物)的比较，其中有一个在某一方面超过其他几个，后面可用of(in)短语等来说明比较的范围。形容词最高级的前面一般要加定冠词the，副词最高级前的the可以省去。 比较范围的表达： in + 地点/群体：表示在某个范围内 This is the oldest building in the city. 这是这个城市最古老的建筑。 of/among + 同类事物：表示在群体中 He is the tallest of the three brothers.他是三兄弟中最高的。 特殊注意事项： 物主代词替代 the：当最高级前有物主代词或名词所有格时，不加 the。 My best friend lives in Paris.我最好的朋友住在巴黎。 无明确范围时：若语境已隐含比较对象，可省略范围。 Who is the fastest 谁是最快的？（默认在已知群体中） 形容词、副词的最高级 2.构成 规则变化： 一般在词尾加 -est， 例： tall → tallest 以 e 结尾的词：直接加 -st 例：large → largest 以辅音字母 + y 结尾：变 y 为 i，加 -est 例：happy → happiest 重读闭音节结尾（单辅音字母）：双写末尾字母加-est 例：big → biggest 多音节词（通常≥3音节）：前加 the most 例：beautiful → most beautiful 形容词、副词的最高级 不规则变化 即时练 1. We went to the _____ (bad) restaurant in town last night. 2.Tom acted the_____(wel1)in that movie. I think he's much _____ (good) than other actors. He can always find the _____ (interesting)roles to play. worst best better most interesting 原级 最高级 good/well best bad/badly worst far farthest /furthest little least many/much most 形容词、副词的最高级 1. Among all animals, I love pandas the best. I think they are_____ (cute) animals in the world. 2.Which do you think is _____(beautiful), the rose, the peony, or the lotus flower 3.Look at that butterfly! It has_____ (colourful) wings. 4.Which animal jumps_____ (high), the lion, the monkey, or the tree frog 5.The elephant birds were _____(large) and _____(heavy) birds ever on earth. Some could stand up to three metres tall and weigh up to 860 kg. Complete the sentences with the superlative forms of the words in brackets. the most beautiful the cutest 3b 身高可达3米 体重可达860公斤 the most colourful （the） highest the largest the heaviest Complete the passage with the superlative forms ... ...
