八年級英語上冊UnitLessonAFamousFriend形容詞比較級和最高級的構(gòu)詞規(guī)則課件（新版）冀教版

1、形容詞比較級和最高級的形容詞比較級和最高級的構(gòu)詞規(guī)則構(gòu)詞規(guī)則一、規(guī)則變化一、規(guī)則變化 1.單音節(jié)和少數(shù)雙音節(jié)單詞，一般在詞尾加單音節(jié)和少數(shù)雙音節(jié)單詞，一般在詞尾加“er”或或“est”。 如：如：clean, tall, small, cheap , short, long, light, high 2. 以不發(fā)音字母以不發(fā)音字母“e”結(jié)尾的單詞，直接在詞尾加結(jié)尾的單詞，直接在詞尾加 “r”或或“st”。 如：如：nice, late, close, fine, large, free, rude 3.以重讀閉音節(jié)結(jié)尾的單詞，如果詞尾只有一個輔音以重讀閉音節(jié)結(jié)尾的單詞，如果詞尾只有一個輔音字母

2、時，應(yīng)先雙寫這一輔音字母，再加字母時，應(yīng)先雙寫這一輔音字母，再加“er”或或“est”。 fat, big, red, thin, hot, fat, sad, wet 4. 以輔音字母以輔音字母+y結(jié)尾的單詞，應(yīng)先改結(jié)尾的單詞，應(yīng)先改“y”為為“i”，在，在加加“er”或或“est”。 happy , easy, heavy, healthy, busy, lucky, pretty, sunny, funny 5. 其他雙音節(jié)單詞和多音節(jié)單詞，都在其前其他雙音節(jié)單詞和多音節(jié)單詞，都在其前“more”或或“most”。(beautiful, interesting)二、二、 不規(guī)則變化不規(guī)則

3、變化 合二為一共三對合二為一共三對:“壞壞bad”,“病病ill”的比較級為的比較級為worse,最高級為最高級為worst.兩多兩多many/much”的比較級為的比較級為more,最高級為最高級為most.“兩好兩好good/well” 的比較級為的比較級為better, 最高級為最高級為best. 一分為二只兩個，一是一分為二只兩個，一是“遠(yuǎn)遠(yuǎn)far”的比較級為的比較級為farther/further,最高最高級為級為farthest/furthest.二是二是“老老old”的比較級為的比較級為 older/elder，最高，最高級為級為oldest/eldest. 還有一詞還有一詞li

4、ttle“少少”的比較級為的比較級為less,最高級為最高級為least.I. 原級用法原級用法:1. as+adj/ adv.的原級的原級+ as (肯肯,否否) , (not)soas (否否)eg. The ruler is as long as that one. He sings as well as Jack. He doesnt sing as(so) well as Jack.2. as much as, as many as 與與一樣多一樣多eg. I have done as much work as he did yesterday. You can take as ma

5、ny books as you can. II. 比較級用法比較級用法:1. 比較級比較級+than2. 比較級比較級+and+比較級比較級, 表示表示“越來越越來越” eg. warmer and warmer, nicer and nicer, more and more beautiful, more and more fun3. the+比較級比較級 the+ 比較級比較級 eg. The more you read the book, the more interesting you found . 4. 比較級的修飾語有比較級的修飾語有 : much, far, even, a l

6、ittle, a lot, a bit, rather, still, a great deal (大量大量) + adj./adv. 比較級比較級5. 當(dāng)比較級后沒有當(dāng)比較級后沒有than, 而為而為of the two的結(jié)構(gòu)的結(jié)構(gòu),比較級前加比較級前加the. eg. The taller of the two girls is Mary.最高級用法最高級用法:1. 形容詞最高級用于形容詞最高級用于in, of 或或among的結(jié)構(gòu)中的結(jié)構(gòu)中, 形容詞最高級前形容詞最高級前+the eg. I am the best of (among)the three. He is the thinn

7、est boy in my class.2. 副詞最高級不需副詞最高級不需+the eg. Jim goes to bed latest in my family.)3. 比較級和最高級互換比較級和最高級互換(比較時要比較時要把自己排除把自己排除在外。注意比較的范在外。注意比較的范圍圍)eg. Shanghai is the largest city in China. Shanghai is larger than any other city in China. IV. Others Alices diet was less healthy than Dannys diet. (不如不如)

8、 (more than 勝于勝于)This T-shirt is the same size as that one.The red shirt is five yuan cheaper than that blue one.Which is the least interesting film youve ever seen? This park is three times as big as the Summer Palace. (倍數(shù)倍數(shù)+asas)This book cost twice as much as that one.I think English is as as mat

9、hs.important B. more important C. most important 2.Mother gets up in my family.early B. earlier C. earliest D. the earlier3. The next morning Jenny got up even .early B. earlier C. earliest D. the earliest4. Emily sings of the five girls.good B. well C. better D. best5. In fact, Delia is a little than her elder sister.tall B. taller C. tallest D. the tallest6. Heidi does not jump so as Jane.A. high B. higher C. highest D. the highest7. Of all the stars the sun is to us.close B. closer C. closest D. the closest8. Barbara felt much than before after dark.cold B. colder C. co