小学形容词的比较级、最高级

1、形容词的比较级和最高级般句式A + is / are+ 形容词比较级+ than + BA是主格B是宾格如： She is taller than me.二、形容词比较级变化：（一）规则变化1.单音节词末尾加-er （比较级），-est （最高级）原级比较级最高级greatgreatergreatestsmallsmallersmallestfastfasterfastestsoftsoftersoftest2.单音节如以e结尾，只加-r （比较级），-st （最高级）原级比较级最高级largelargerlargestsafesafersafestnicenicernicestfinefin

2、erfinest3.闭音节单音节词（末尾只有一个辅音字母，须先双写这个辅音字母）再加-er （比较级），-est （最高级）原级比较级最高级bigbiggerbiggesthothotterhottestthinthinnerthinnestsadsaddersaddest特别提醒：new, few, slow, clean等词含有字母组合，且发的 是长元音，不用双写。4.以-y结尾的词，如-y前是辅首字母，则变y为-i ,再加-er和-est 以-e结尾的词只加-r和-st原级比较级最高级prettyprettierprettiesteasyeasiereasiestbusybusierbu

3、siest5.双音节、多音节形容词（即音标中含有三个或三个以上元音音素的词），在单词前面加上“more”“most” 构成比较级、最高级:原级比较级最高级beautifulmore beautifulmost beautifulinterestingmore interestingmost interestingdifficultmore difficultmost difficulthonestmore honestmost honest特别提醒：以形容词前缀un构成的三音节形容词不适合上述情况:如：unhappy-unhappier-unhappiest untidy-untidier-u

4、ntidiest6.以形容词+ly构成的副词要在前面加more,most原级比较级最高级slowlymore slowlymost slowlyquicklymore quicklymost quicklyfriendlymore friendlymost friendly7.由ing分词和-ed分词演变过来的形容词只能加 more或most来表示比较级和最高级：原级比较级最高级interestingmore interestingmost interestingexcitedmore excitedmost excitedtiredmore tiredmost tiredboringmore

5、 boringmost boring（二）不规则变化:原级比较级最高级badworseworstfarfartherfarthestfarfurtherfurthestgoodbetterbest川worseworstlittlelessleastmanymoremostmuchmoremostwellbetterbest练习题：一、请写出下列形容词的比较级和最高级big smallnewtallshort oldstrongfathot cold thinnicegoodhigh bad much lowdirtycheapeasyuglyheavyexcitedprettyinterest

6、ingdeliciousbeautifulexpensive二、 Write the answers. (根据题意，写出答案。)1. The black dog is (thin) than the white dog.2. This balloon is (big) than yours.3. My bag is (heavy) than yours.4. John is (strong) than Mike.5. I am (short) than Lucy.三用所给词的正确形式填空，每词用一次。heavyold thinthan the rabbityoung long tall1. Monkey s tail is s tail.old. Di2. Dick is 11 years old. Nina is 12 years ck is than Nina.3. I m 140 cm than y4. I m 40 kg. You re 42kg. I mou.5. How are you I m 45 kg.四、选择填空1 How heavy are youA I m 48 years old. B I m 48kg. C I m 48cm.2 Tom is 12