高一英语上学期第三课时第9周教学设计

1、四川省宜宾市一中2016-2017学年高一英语上学期第三课时第9周教学设计课题 必修1 M5 Grammar (第3课时) 课时 1 考点、知识点 1.掌握重点词汇和短语； 2.掌握比较级。 学习目标 1.学习比较级的用法。 重、难点 1.重点：掌握比较级的各种形式； 2.难点：正确使用比较级。 学习环节和内容 学生活动建议 教师活动建议 调整记录 Step 1. Lead-in Present the Ss the following sentences on the Bb and ask them to discover what kind of degrees of comparison

2、 . = 1 * GB2 Jack speak English as fluently as Tom. = 2 * GB2 This school is better than that one. = 3 * GB2 This book is more interesting than that one. = 4 * GB2 This room is less beautiful than that one. = 5 * GB2 The weather is getting hotter and hotter. = 6 * GB2 The harder you study, the more

3、you will make progress. = 7 * GB2 He works (the) hardest in his class. Then call the answers from the class. Step 2. Grammar structure Firstly ask the Ss to make a summary about the structures of the degrees of comparison. Then check the answers. Step 3. Detailed Notes about Grammar Usage 原级的构成和用法 1

4、）构成：形容词和副词的原级形式是形容词和副词的原形。 2）用法：当表示双方在程度、性质、特征等某方面相等时，用“as+原级adj./adv.+as”的结构；当表示双方不相等时，用“not as(so)+ 原级adj./adv.+as”的结构；当表示一方是另一方的若干倍时，用“倍数+as+原级adj./adv.+as”的结构。例如： He is as tall as Jack. / I speak English as fluently as you. Your bike is not as(so) new as hers. This road is three times as long as

5、 that one. 比较级和最高级的构成和用法 1）构成： 规则变化 单音节形容词以及少数以er,or结尾的形容词和副词加er，est例如： fast-faster-fastest; few-fewer-fewest; great-greater-greatest; clever-cleverer-cleverest norrow-norrower-norrowest. 以e结尾的单音节形容词和副词后以及少数以-ble,-ple结尾的双音节形容词和副词后，加r，st例如： large-larger-largest, able-abler-ablest, simple-simpler-simp

6、lest 以一个辅音结尾的单音节形容词，其前面的元音字母发短元音时，该辅音字母要双写，然后加er，est例如： hot-hotter-hottest 以辅音加y结尾的形容词和少数不是形容词加ly构成的副词要将y改写为i，再加er，est例如： easy-easier-easiest, happy-happier-happiest early-earlier-earliest 一般双音节词、多音节形容词和副词在原级前more或most例如： beautiful-more beautiful-most beautiful; carefully-more carefully-most careful

7、ly 少数单音节或双音节形容词也加more和most构成比较级和最高级。例如： tired-more tired-most tired; pleased-more pleased-mos pleased; crowded-more crowded-most crowded 不规则变化 原级 比较级 最高级 good, well better best bad, ill worse worst many, much more most little less least old older(较老、较旧), elder（较年长） oldest(最老、最旧)， eldest(最年长) far far

8、ter(较远的), further(进一步地) farest（最远的） furthest（最深刻地） 注意辨析few-fewer-fewest和little-less-least的差别: 前者是规则变化，后者是不规则变化；前者用来修饰可数名词，后者用来修饰不可数名词。 2）用法： 比较级的用法 双方比较，表示一方超过另一方时，用“比较级+than”的结构表示。例如： This book is better than that one. 表示一方不及另一方时，用“less+原级adj./adv.+than”的结构表示。例如： This room is less beautiful than th

9、at one. 表示一个方面随另一个方面的程度而变化时，用“the +比较级（+主语+谓语），the +比较级（+主语+谓语）”的结构。例如： The harder he works, the happier he feels. The harder you study, the more knowledge you will get. 表示自身程度的改变“越来越-”时，用“比较级+and+比较级”结构表示。如： The weather is getting colder and colder. The little girl becomes more and more beautiful.

10、表示倍数的比较级有如下几种句型： a)“倍数+as+原级adj.+as+被比较对象”，例如： This river is four times as long as that one.（这条河是那条河的四倍长） b)“倍数+the+size(length, width, depth, height)+of+被比较对象”，例如： This river is four times the length of that one.（这条河是那条河的四倍长） c)“倍数+比较级adj.+than+被比较对象”，例如： This river is three times longer than that

11、one.（这条河是那条河的四倍长/这条河比那条河长三倍） 注意： 在比较级的前面可以加上如下一些表示程度的状语，但要注意其含义的差别。 a)any加比较级, 表示疑问程度，译为“-一些”，“-一点”。例如： Are you feeling any better? b)no/not(any)加比较级, 表示否定程度，译为“并不-”。例如： Some grow no higher than your ankles. This film is not more interesting than that one. c)a bit, a little, slightly加比较级, 表示“稍微，一点（些

12、）”。例如： May I stay here a little longer? This problem is a bit more difficult than that one. d)many, much, a lot, greatly, (by)far, rather, a good(great) deal等加比较级, 表示“-得多”。例如： Our school is much more beautiful than theirs. The people here are a great deal richer now than before. 附 by far通常用于强调最高级。用于

13、比较级时，一般放在比较级的后面，如在前面，应在二者中间加“the”。例如：He is taller by far than his brother./ He is by far the taller of the two brothers. e)even, still加比较级, 表示强调，译为“甚至更/还要-”。例如： He gets even stronger. Jack is tall, but Tom is still taller. f)“数词+名词+比较级”表示确定的程度。例如： He is five years older than I. I got up an hour earl

14、ier than the others. 最高级的用法 三者或三者以上相比，表示最高程度时，用“the +最高级”的结构表示。这种句式一般常有表示比较范围的介词短语。例如： Zhang Hua is the tallest of the three. He works (the) hardest in his class. The Three Gorges area is one of the most beautiful areas of China. 最高级可被序数词以及by far, by no means, much, nearly, almost, not quite, nothin

15、g like等词语修饰。例如： The Yangtze River is the worlds third longest river. How much did the second most expensive hat cost? This hat is by far / by no means / much / nearly / not nearly / almost / not quite / nothing like the biggest. 注意： a)作状语的副词最高级前可以不加定冠词。例如： He came (the) earliest of all the boys. b)e

16、xcellent(优秀的、极好的)，extreme（极端的），favourate(最喜爱的)，perfect（完美的）等词本身含有最高级的含义，所以它们没有比较级和最高级。 c)形容词最高级修饰作表语或介词宾语的名词、代词时，被修饰的词往往省略。 He is the tallest (boy) in his class. 使用形容词、副词的比较等级时要注意的几个问题 在as-as之间只能使用原级形容词（副词）。例如： 误：I have as less money as you do. 正：I have as little money as you do. 切忌采用双重比较 比较级前可以用表示程

17、度的修饰语来表示强调或程度，但不可用more加比较级形式。例如： 误：His health is more worse than before. 正：His health is worse than before. 应避免自我比较 使用比较级时，进行比较的双方必须是互相分离、互不包含的独立概念或事物，否则比较就不合逻辑。例如： 误：Bamboo probably has more uses than any plant in the world. 正：Bamboo probably has more uses than any other plant in the world. 附比较的另一方

18、如果是不定代词anyone, anything, 前面不能加other, 而要在其后加else. 例如： She studies harder than anyone else in her class. 但是，若比较的双方不属于同一范围，句中则不加other。例如： She runs faster than any boy in her class. 表示“两者中较-”时，比较级前要加the。例如： The older of the two noblemen took a light and led me into a back room. 被比较的双方必须具有可比性。例如： 误：There are more students in this school than that school. 正：There are more students in this school than in that school. 连词than后使用代词主格和宾格有时意义不同。例如： I know you better than he.我比他更了解你 I know you better than him.我对你的了解比对他的了解更透彻些（或：“我比他更了解你”，此时与同义）。 使