2018年牛津八年级英语上Unit1 Grammar课件.ppt

Unit 1 Unit 1 Friends Comparative and superlative adjectives Grammar Presentation The air is bad . The air is worse . The air is the worst . bad — worse — worst e.g. The girl’s height is one metre . height n. 高度，身高 e.g. He wants to lose weight by exercising. weight n. 重量；体重 e.g. They are having a competition . competition n. 竞赛，比赛 worse (bad 的比较级 ) 更坏，更差 worst (bad 的最高级 ) 最坏，最差 height 高度；身高 weight 重量；体重 sec. (= second) 秒 competition 竞赛，比赛；竞争 test 测试，考查 swimmer 游泳者 Read aloud these new words. Warming up He is taller than I am. 他比我高。 Yao Ming is the tallest of the three . 姚明是三位中最高的。 My book is more interesting than his. 我的书比他的更有趣。 This book is the most interesting of all . 这本书是所有当中最有趣的。 形容词通常有 三种形式 : 原级，比较级和最高级，用来表示人或事物在某方面的不同程度。如： (Comparative and superlative adjectives) 形容词比较级和最高级 原级 比较级 最高级 规则变化 短词 tall taller tall est 长词 interesting more interesting most interesting 不规则变化 good better best 形容词比较级和最高级形式 形容词原级 比较级 最高级 短词 tall small 词尾＋er 词尾＋est taller tallest smaller smallest 一、规则变化 形容词原级 比较级 最高级 以不发音的e结尾的形容词 nice fine 以辅音字母＋y结尾的形容词 pretty easy 把 y 改成 i + er + st nicer nicest finer finest 把 y 改成 i + est prettier + r easier prettiest easiest 形容词原级 比较级 最高级 重读闭音节,结尾只有一个辅音字母 slim big 长 词 beautiful important 双写最后一个辅音字母 + est slimmer slimmest bigger biggest 双写最后一个辅音字母 + er 前面 + more 前面 + most more beautiful more important most beautiful most important 特殊形容词原级 比较级 最高级 good bad little much/many old far better best worse worst 二、不规则 变化 less least more most older/elder oldest/eldest farther/ further farthest/ furthest Adjective Comparative Superlative funny bad healthy careful large smart slim funnier funniest worse healthier worst healthiest more careful most careful larger largest smarter smartest slimmer slimmest Complete the table below. Daniel is writing about his classmates. Help him complete the following table with the correct adjectives. Adjective Comparative Superlative clean cleaner cleanest big cute short happy lazy bigger biggest cutest cuter shorter shortest happier happiest lazier laziest Adjective Comparative Superlative thin thinner thinnest sad difficult interesting good bad better best worse worst sadder saddest more difficult most difficult more interesting most interesting 1. 两者之间用比较级。 句型结构： A + be + 比较级 + than + B 2. 三者及以上用最高级。 句型结构： A + be the + 最高级 + 表三者及以上 的范围 形容词比较级和最高级的基本使用原则 e.g. 1. She is shorter than I am. 2. My book is more interesting than his. 3. He is the tallest in our class. 4. This is the most expensive computer in the shop. Daniel has made a profile of his classmates. Read the profile and complete his notes. Millie Sandy Amy Peter Kitty Simon Height (cm) 157 170 160 173 155 171 Weight (kg) 45 50 44 55 40 53 50 m swimming (sec.) 40 38 30 34 36 35 Drawing competition 9/10 10/10 9/10 5/10 6/10 8/10 English test 10/10 8/10 9/10 6/10 8/10 7/10 1. Simon is __________ (tall) Sandy. 2. Peter is __________ (tall) of the six students. 3. Sandy is ___________ (heavy) Millie. 4. Peter is ___________ (heavy) of the six students. 5. Among the six students, Millie is ___________ (slow) swimmer. taller than the tallest heavier than the heaviest the slowest 6. Amy is _________ (fast) swimmer of the six students. 7. Millie’s drawing is _________________ (beautiful) Simon’s. 8. Sandy’s drawing is ________________ (beautiful) in her class. 9. Millie’s English is ___________ (good) Simon’s. Millie’s English is __________ (good) in her class. the fastest more beautiful than the most beautiful better than the best 一、 英语中形容词通常有三种等级 — 原级、比较级和最高级，用来描述人或事物在某个方面的不同程度。其中比较级的构成分为规则变化（分为长词变化规则和短词变化规则两类）以及不规则变化。 如： long — longer — longest, important — more important — most important, many/much — more — most 语法小结 二、 当把两个人或事物作比较时要用比较级。即：两者之间用比较级。如： Who is more generous, Kitty or Sandy? 三个及以上的人或事物之间进行比较时要用最高级，即三者及以上用最高级。如： Whose drawing is the most beautiful, Millie’s, Sandy’s or Amy’s? 三、 比较级常和 than 连用，最高级常和三者及以上的范围连用，如 : in her class, of the three, of all, among the six students, in China 等等 。 一、单项选择。 1. Which is _______, the sun, the moon or the earth? A. big B. bigger C. biggest D. the biggest 2. She is _______ swimmer among them. A. good B. best C. better D. the best Exercises √ √ 3. Her drawing is _____ than the other three. A. beautiful B. more beautiful C. the most beautiful D. the more beautiful 4. Whose bike is ______, his or hers? A. new B. newwer C. the newest D. newer √ √ 二、翻译句子。 1. 这台电脑比那台贵。 This computer is ___________________ that one. 2. 这三个盒子哪一个最重？ Which box is ______________________? 3. 今天比昨天热吗？ Is today ___________ yesterday? more expensive than the heaviest of the three hotter than 4. 在这些学生中， Sandy 数学最好。 Sandy is ___________________________ ____________. 5. 第一道数学题比第二道难得多。 The first maths problem is much __________________ the second one. the best at maths among these students more difficult than 1. Remember the use of comparatives and superlatives of the adjectives.2. Preview the new words in the next lesson. Homework Thank you!