(
课件网) （人教新目标版）八下英语 Period 3 Section A 4a-4c Unit 7 What’s the highest mountain in the world Learning objectives Teaching aims（教学目标） Master the usage of comparative forms and superlative forms of adjectives. Language points（语言点） 要求掌握以下句式： What’s the highest mountain in the world (Qomolangma.) Which is the deepest salt lake in the world (The Caspian Sea is the deepest of all the salt lakes.) How high is Qomolangma (It’s 8848.86 meters high. It’s higher than any other mountain.) 要求掌握以下词汇： ocean, the Pacific Ocean ocean n. 大海；海洋 the Pacific Ocean n. 太平洋 New words Giant Panda Po gave birth to twin cubs (幼崽). The large male cub was born with 211.6 grams while the _____ female cub weighed 209 grams. The pair represents (代表) the world's _____ captive-bred (人工圈养繁殖) twin panda cubs on record. Mother and twins are in stable (稳定的) condition. smaller heaviest comparative superlative Lead in 1. 长江长约6,300千米。 2. 黄河长5,464千米。 3. 长江比黄河长。 4. 长江是中国最长的河。 The Yangtze River is about 6,300 kilometers long. The Yellow River is 5,464 kilometers long. The Yangtze River is longer than any other river in China. The Yangtze River is the longest river in China. The Yangtze River is longer than the Yellow River. 计量的表达方法可以是： 基数词+度量词(单/复数)+形容词(high/old/long/wide/tall/deep/thick等)。 比较级用于比较两个主体，之后可用than引出比较的对象 "比较级+than any other+名词+其他" 表示"比其他任何一个……都……" 该结构可与"the+最高级+其他"相互转换 Lead in 形容词和副词的比较级和最高级 Presentation 大多数形容词和副词都有三个级 1) 同级比较: 基本结构as ... as ... “和..….一样” Zhang Hong is as tall as Tom. 张红和汤姆一样高。 2) 比较级 (用于两者之间的比较)，基本结构：比较级＋than ... He is taller than I. 他比我高。 另: 在比较级前有时可加一些修饰语，如much, a lot, a little, even等以示强调或加强语气。 This box is a little heavier than yours. 这个箱子比你的要稍重一些。 Presentation 3) 最高级(用于三者或三者以上的比较)，基本结构: the + 最高级 + of / in ... 1) He is the tallest of the three. 他是这三个人中最高的。 2) He is the funniest in his class. 他是他们班最有趣的。 在含有最高级的句子中，常有一个in/of短语来表示比较范围。 Presentation 以“辅音字母 + y”结尾的双音节词，先把“y”改为“i”再加-er 重读闭音节词且词尾只有一个辅音字母，双写辅音字母再加-er ①规则变化： -er ger ner ier ier 比较级构成 以不发音字母e结尾的词，在词尾加___ -r 单音节和部分双音节词 一般在词尾加____ tall→taller long→longer fine→finer late→later big→big___ thin→thin___ easy→eas___ friendly→ friendl____ Presentation → more outgoing → more beautiful → more difficult → more confident → more popular → more enjoyable 多音节词和部分双音节词的比较级需要在其前加_____构成。 more outgoing beautiful difficult confident popular enjoyable Presentation 原级 比较级 good worse less many/ much farther /further better bad little more far Observe the sentences and ... ...
