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1、Unit 1 FriendsUnit 1 FriendsGrammar (Grammar () )comparative and superlative comparative and superlative adjectivesadjectives形容詞的比較級(jí)和最高級(jí)形容詞的比較級(jí)和最高級(jí) THE SMALLESTThe car is _.The train is _ than the car. The plane is _ of all.fast fasterthe fastestTHE WHITE DOG IS VERY HAPPY. The first pig is quite fa

2、t.The second pig is much fatter.The third pig is the fattest of all.Discuss:Learning for use構(gòu)成方法構(gòu)成方法原級(jí)原級(jí)比較級(jí)比較級(jí)最高級(jí)最高級(jí)單音節(jié)詞和單音節(jié)詞和少數(shù)雙音節(jié)少數(shù)雙音節(jié)詞在詞尾加詞在詞尾加-er或或-estfastlongtallcheapfasterlongertallercheaperfastestlongesttallestcheapest形容詞的比較級(jí)形容詞的比較級(jí)(Comparative)和最高級(jí)和最高級(jí)(Superlative)構(gòu)成方法構(gòu)成方法原級(jí)原級(jí)比較級(jí)比較級(jí)最高級(jí)最高級(jí)以字

3、母以字母e結(jié)尾結(jié)尾的形容詞的形容詞,加加-r或或-stnicesafelatenicersaferlaternicestsafestlatest構(gòu)成方法構(gòu)成方法原級(jí)原級(jí)比較級(jí)比較級(jí)最高級(jí)最高級(jí)重讀閉音節(jié)詞重讀閉音節(jié)詞以一個(gè)輔音字以一個(gè)輔音字母結(jié)尾時(shí)母結(jié)尾時(shí),應(yīng)先應(yīng)先雙寫該輔音字雙寫該輔音字母母,再加再加-er或或-estbighotthinslimbiggerhotterthinnerslimmerbiggesthottestthinnestslimmest構(gòu)成方法構(gòu)成方法原級(jí)原級(jí)比較級(jí)比較級(jí)最高級(jí)最高級(jí)以以輔音字母輔音字母+y結(jié)尾結(jié)尾的雙音節(jié)的雙音節(jié)詞詞,先改先改y為為i,再再加加-er或或

4、-esteasyhappyheavyeasierhappierheaviereasiesthappiestheaviest構(gòu)成方法構(gòu)成方法原級(jí)原級(jí)比較級(jí)比較級(jí)最高級(jí)最高級(jí)其他雙音其他雙音節(jié)詞和多節(jié)詞和多音節(jié)詞在音節(jié)詞在前面加前面加more或或mostbeautifulmore beautifulmost beautifulimportantmore importantmost importantdangerousmore dangerousmost dangerousfrightenedmore frightenedmost frightened不不規(guī)規(guī)則則變變法法good / wellbet

5、terbestbad / illworseworstmany/ muchmoremostlittlelessleastfarfartherfarthestfurtherfurthestoldolder/elderoldest/eldestFinish Part APractice1. clean cleaner cleanest2.short shorter shortest3.cute cuter cutest 4.happy happier happiest5.lazy lazier laziest6.big bigger biggest7. thin thinner thinnest8.

6、 sad sadder saddest 9. difficult more difficult most difficult 10. interesting more interesting most interesting 11. good better best 12. bad worse worst 50kg200kg400kgThe first box is_.The second box is _than the first one.The third box is _of all.heavyheavierthe heaviestheavier thanfatter than Pra

7、ctice 2Practice 3 句型結(jié)構(gòu)句型結(jié)構(gòu)/關(guān)鍵詞：關(guān)鍵詞：Finish Part BPractice1. taller than 2. the tallest 3. heavier than 4. the heaviest 5. the slowest 6. the fasted 7. more beautiful than 8. the most beautiful 9.better than the best Canada is _ _ _ than China.( ) 1. My mother is _ in our family. A.busiest B.the busie

8、st C.busier D.busy( ) 2. This apple is _ of all. A.redder B.the redest C.the reddest D.reddest( ) 3.Which pen is _ , this one or that one? A.dear B.dearest C.the dearest D. dearer BCDMultiple Choice( ) 4. Kate is _ than all the other girls. She is _ of all. A.taller , tallest B. taller , the tallest

9、 C. the tallest , tallest D. tallest , the tallest( ) 5. _ of the two men is my uncle. A. The older B. Old C. The oldest D. Oldest BAMultiple Choice本題中比較級(jí)前的本題中比較級(jí)前的the表示特指表示特指2個(gè)人中年紀(jì)較大的一個(gè)個(gè)人中年紀(jì)較大的一個(gè)HOMEWORK1. Remember how to form comparatives and superlatives with adjectives.2. Make sentences using comparatives and superlatives.3. Finish the exercises on P12