牛津譯林版八年級上冊Unit1Friends Grammar比較級最高級課件(共13張PPT)

1、Unit 1 FriendsComparative and superlative adjectives（形容詞的比較級和最高級）Grammar(1) (2) (3)The first tree is shorter than the second one.The third tree is taller than the first one.The first tree is the shortest of the three.The blue house is _.The green house is _.The red house is _.The brown house is _.形容

2、詞有三種形式：原級，比較級和最高級，表示形容詞說明的性質(zhì)在程度上的不同。 形容詞的比較級用于兩個人或事物的比較，最高級用于三個或三個以上人或事物的比較。形容詞的比較級和最高級是在形容詞的原級形式的基礎(chǔ)上變化的，可分為規(guī)則變化和不規(guī)則變化。 基本概念（1）單音節(jié)、少數(shù)雙音節(jié)形容詞：在詞尾加 -er 和 -est tall-taller-tallest great-greater-greatest （2）以 -e 結(jié)尾的單音節(jié)形容詞：在詞尾加 -r 和 -st nice-nicer-nicest wide-wider-widest（3）以 -y 結(jié)尾,但 -y 前是輔音字母的形容詞：把 -y 去掉

3、,加上 -ier 和-iest easy-easier-easiest happy-happier-happiest （4）一個元音字母加一個輔音字母結(jié)尾的重讀音節(jié)：雙寫該輔音字母然后再加 -er和-est hot-hotter-hottest slim-slimmer-slimmest（5）三個或三個以上音節(jié)的形容詞：之前加上more, most beautiful-more beautiful-most beautiful important-more important-most important形容詞的比較級、最高級變形（6）不規(guī)則變化：good/well-better-best b

4、ad/badly/ill-worse-worst little-less-least many/much-more-most old-older（只指年齡大小）/elder（被比較兩者有親屬關(guān)系） -oldest/eldestfar-farther（只指距離更遠(yuǎn)）/further（指距離更遠(yuǎn)或程度更深） -farthest/furthestHe is two years older than your elder brother. 他比你哥哥年長兩歲。He jumps father/further than I. 他跳得比我遠(yuǎn)。Many students go abroad for furth

5、er studies. 很多學(xué)生出國深造。（7）帶有形容詞后綴的派生形容詞變?yōu)楸容^級、最高級，分別在之前加more, most，如：useful, careful, famous, nervous, bored, boring, tired, tiring, handsome, terrible, active（8）一些單詞的比較級和最高級既可以加-er，-est， 也可以加more， most。 e.g. clever cleverer cleverest more clever most clever handsome handsomer handsomest more handsome

6、most handsome polite politer politest more polite most polite simple simpler simplest more simple most simple stupid stupider stupidest more stupid most stupid基本句型比較級：A+系動詞+比較級+than+BThe book is more interesting than that one. 這本書比那本有趣。Your idea sounds better than his. 你的想法聽起來比他的好。注意：兩者比較，沒有用than， 而

7、是加了表示范圍的部分，則比較級之前加the表示特指He is the taller of the two boys. 他是這兩個男孩中較高的那一個。最高級：主語+系動詞+the+最高級+表示范圍的部分He is the tallest student of the three. （同類比較用of） 他是這三個學(xué)生中最高的那個。He is the tallest student in his class. （非同類比較用in）他是他班里最高的學(xué)生。特殊用法（1）表示程度可用much, even, still, far, a lot, a little等修飾比較級much, even, still

8、, far, a lot+比較級 表示“得多”a little +比較級 表示“有一點”-Do you feel a little better now? 你現(xiàn)在感覺好一點了嗎？ -Yes, I feel much better today. 是的，我今天感覺好多了。（2）The+比較級+主語+謂語，the+比較級+主語+謂語 （越.越.）The more careful you are, the fewer mistakes you will make.=If you are more careful, you will make fewer mistakes.你越仔細(xì)，你所犯的錯誤就會越少

9、。（3）比較級+and+比較級 （越來越.）He is becoming lazier and lazier. 他變得越來越懶。She looks more and more beautiful. 她看上去越來越漂亮了。（4）the+序數(shù)詞+最高級表示“第幾+形容詞”the second largest country 第二大國the third longest river 第三長河 （5）形容詞前如果加less和least則表示較不和最不 less important 較不重要的 least important 最不重要的（6）比較級、最高級之間的轉(zhuǎn)換（注意范圍表示方法）Shanghai i

10、s the largest city in China.=Shanghai is larger than the other cities in China.（除上海之外的其他城市）=Shanghai is larger than any other city in China.（除上海之外的任何其他一座城市）China is larger than any country in Europe.（中國不屬于歐洲，不需用other)(1) 無一定范圍或同類事物作比較，只與其本身作比較We are busiest on Mondays.我們周一最忙。(2) 加強語氣，表示“非常，相當(dāng)”The bo

11、ok is most(=very) interesting. 這本書非常有趣。(3) 之前已有物主代詞、指示代詞或名詞所有格等限定詞修飾He is my best friend. 他是我最好的朋友。(4) 兩個最高級同時出現(xiàn)時，后一個省略theShe is the youngest but tallest girl in her class. 她是班級里年齡最小但個子最高的女孩。(5) 固定用法Best wishes for you! 給你送上最好的祝福！最高級之前省略the的情況1. Of the two girls, I find Lucy the _ (clever).2. Johns

12、parents have four daughters, and she is the _ (young) child.3. The short one is the _ (expensive) of the five.4. Whos the _(fat), Jim , Kate or Tom?5. Here are three tickets for the film tonight. The yellow one is _ (expensive) than the other two.6. She will be much _ (happy) in her new house.Practicecleverer/more cleveryoungestmost expensivefattestmore expensivehappier7.The Century Park was the second_ (large)in Shanghai.8.It will be worse for your health to eat _ (much)food and take_ (little)exercise.9.This book is_ (difficult)than that one.10.T