八年級英語上冊 Module 10 The weather導(dǎo)學(xué)案（新版）外研版

1、M10【學(xué)習(xí)目標(biāo)】1.什么是形容詞原級，比較級和最高級，比較級和最高級的變化規(guī)則有哪些？2.比較級和最高級的使用句型有哪些？【預(yù)習(xí)提示】絕大多數(shù)形容詞有三種形式,原級,比較級和最高級, 以表示形容詞說明的性質(zhì)在程度上的不同。形容詞的原級: 形容詞的原級形式就是詞典中出現(xiàn)的形容詞的原形。 例如: poor tall great glad bad通常very too so pretty asas后用原級形容詞的比較級和最高級: 形容詞的比較級（表示“更”）和最高級形式（表示“最”）是在形容詞的原級形式的基礎(chǔ)上變化的。 分為規(guī)則變化和不規(guī)則變化。規(guī)則變化如下: 1) 單音節(jié)形容詞的比較級和最高級形式

2、是在詞尾加 -er 和 -est 構(gòu)成。 great (原級) greater(比較級) greatest(最高級) 2) 以 -e 結(jié)尾的單音節(jié)形容詞的比較級和最高級是在詞尾加 -r 和 -st 構(gòu)成。 late (原級) later(比較級) latest (最高級) 3)少數(shù)以-y, -er, -ow, -ble結(jié)尾的雙音節(jié)形容詞的比較級和最高級是在詞尾加 -er 和 -est 構(gòu)成。 clever(原級) cleverer(比較級) cleverest (最高級) 4) 以 -y 結(jié)尾,但 -y 前是輔音字母(21個)的形容詞的比較級和最高級是把 -y 去掉,加上 -ier 和-est

3、 構(gòu)成. happy (原形) happier(比較級) happiest (最高級) 5) 以一個輔音字母結(jié)尾其前面的元音字母發(fā)短元音的形容詞的比較級和最高級是雙寫該輔音字母然后再加 -er和-est。 （紅red 大gig 濕wet，胖fat 熱hot 瘦thin） big (原級) bigger(比較級) biggest(最高級) 6) 雙音節(jié)和多音節(jié)形容詞的比較級和最高級需用more 和 most 加在形容詞前面來構(gòu)成。 beautiful (原級) more beautiful(更漂亮) most beautiful (最漂亮) important (原級) more importa

4、nt(更重要) most important (最重要) 不規(guī)則變化: 原級比較級最高級goo/ wellbetterbestmany/ muchmoremostbad / badly（壞地）worseworstlittlelessleastoldOlder（年齡）/ elder(輩份)oldest/ eldestfarfarther距離/ further（深奧的）farthest/ furthest這一點不要求掌握 形容詞前如果加 less 和 least 則表示較不和最不 important 重要 less important 較不重要 least important 最不重要 【合作探究

5、】 1. 原級的用法:用于兩者之間對比，意思為“和相同”A+v.+as.+形容詞原級as BTom is as honest as Jack.Her skin is as white as snow.My dog is as old as that one.He is not as (=so) tall as I.The weather here is not as(=so)cool as the weather in Harbin.2. 比較級的用法:1）A+形容詞比較級+than+ BSusan is happier than Jane.His brother is younger tha

6、n me.Beijing is more beautiful than Osaka.形容詞比較級前還可以用much, even, still, a little來修飾。2）數(shù)字+形容詞比較級+thanIm two years older than you.She is a head taller than me.3）比較級+and+比較級，表示“越來越”The earth is getting warmer and warmer.China becomes more and more stronger.4）the +比較級，the +比較級結(jié)構(gòu)，表示“越就越”The more I study

7、it, the more I like it.5）which/who +is +比較級Which city is bigger, Beijing or Tianjin?Who is happier, you or me?3. 最高級的用法：用于三者及以上的人或事物的比較,最高級前加the，最高級前有物主代詞，序數(shù)詞和名詞所有格時，不加定冠詞，后面跟帶in或of表范圍的短語。1）one of the +最高級Shanghai is one of the most beautiful cities in China.Our city is one of the safest cities in t

8、he world.Most people like apples.Most of the boys are good.It is our nearest neighbor in space.2）最高級意義的表達(dá)方法:例句最高級She is the best in her class. 比較級She is better than any other student in her class.No other student in her class is better than she.原級No other student in her class is as good as she.下面的練習(xí)

9、試一試吧？一、選擇1. This box is_ that one.A. heavy than B. so heavy thanC. heavier as D. as heavy as 2 When we speak to people, we should be _ .A. as polite(有禮貌的) as we can B. as polite to we canC. as politer as we can D. as politer to we can 3 This book is_ that one, but_ than that one.A. as difficult as;

10、expensiveB. as more difficult as; more expensiveC. as difficult as; more expensiveD. more difficult as; as expensive 4 I think the story is not so _ as that one.A. interesting B. interested C. more interesting D. most interesting 5 His father began to work_ he was seven years old.A. as old as B. as

11、early as C. since D. while6. I think science is _ than Japanese. A. much important B. important C. much more important D. more much important7 This pencil is_ than that one.A. longest B. long C. longer D. as long 8 These children are _ this year than they were last year.A. more tall B. more taller C

12、. very taller D. much taller9 It was very hot yesterday, but it is_ today.A. much hotter B. more hotterC. much more hot D. much hot 10 Mrs Black was_ instead of getting any better.A. more bad B. a little worse C. much badly D. a lot of worse11 Who jumped_of all? A. far B. farther C. the farthest D.

13、the most far13 Li Lei is_ student in our class.A. tall B. taller C. tallest D. the tallest 14 The fifth orange is_ of all. Give it to that small child.A. big B. bigger C. the bigger D. the biggest 15 Who is-of you three? A. the oldest B. much older C. oldest D. older二、同義句。1.He is 14 years old. His f

14、riend is 12 years old.His friend is _ _ he.2.Our bikes are not the same as theirs.Our bikes are _ _ theirs.3.He is healthier than his friend.He _ _ _ of the two.4.The girl is smarter than her classmates.The girl is smarter than_ _ _ in her class.5.He is less popular than her.He is not _ popular _ he

15、r. She is _ _ than him. 常見的形容詞及比較級和最高級的構(gòu)成（規(guī)則變化）：. 在單詞末尾加_ 構(gòu)成比較級； 加the 和_ 構(gòu)成最高級。如： small（小的）_ (更小的) _ _ (最小的) small小的short短的long長的new新的 young年輕的 kind和藹的 clean干凈的quiet寧靜的calm 鎮(zhèn)靜的clever聰明的smart機(jī)靈的cold寒冷的cool涼爽的warm暖和的tall高的great極好的 cheap便宜的few 少量的fast 快的 weak 虛弱的wild 魯莽的quiet文靜的light 輕的 . 在單詞末尾加_ 構(gòu)成比較級

16、； 加the 和_ 構(gòu)成最高級。如： nice（漂亮的）_ (更漂亮的) _ (最漂亮的) nice漂亮的large 大的white白的fine好的late晚的 . 先改單詞末尾的_ 為_, 加_ 構(gòu)成比較級； 加the 和_ 構(gòu)成最高級。如： funny（風(fēng)趣的）_ (更風(fēng)趣的) _ (最風(fēng)趣的) funny 風(fēng)趣的scary恐怖的 pretty漂亮的friend友好的ugly難看的lazy懶惰的 shy害羞的 curly卷曲的heavy重的 easy容易的. 先雙寫在單詞末尾的_字母 , 再加_ 構(gòu)成比較級；加the 和_ 構(gòu)成最高級。如： red（紅的）_ (更紅的) _ (最紅的) red 紅的big大的 hot熱的thin瘦的fat胖的 . 在單詞前加_構(gòu)成比較級；加_ _ 構(gòu)成最高級 如：inter