小学形容词的比较级、最高级

形容词的比较级和最高级一、一般句式A+is/are+形容词比较级+than+BA是主格B是宾格如：Sheistallerthanme.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largelargerlargestsafesafersafestnicenicernicestfinefinerfinest3.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前是辅音字母，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prettyprettierprettiesteasyeasiereasiestbusybusierbusiest5.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beautifulmorebeautifulmostbeautifulinterestingmoreinterestingmostinterestingdifficultmoredifficultmostdifficulthonestmorehonestmosthonest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-unhappiestuntidy-untidier-untidiest6.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slowlymoreslowlymostslowlyquicklymorequicklymostquicklyfriendlymorefriendlymostfriendly7.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interestingmoreinterestingmostinterestingexcitedmoreexcitedmostexcitedtiredmoretiredmosttiredboringmoreboringmostboring（二）不规则变化：原级比较级最高级badworseworstfarfartherfarthestfarfurtherfurthestgoodbetterbestillworseworstlittlelessleastmanymoremostmuchmoremostwellbetterbest练习题：一、请写出下列形容词的比较级和最高级big__________________small__________________new__________________tall__________________short__________________old__________________strong__________________fat__________________hot__________________cold__________________thin__________________nice__________________good__________________high__________________bad__________________much__________________low__________________dirty__________________cheap__________________easy__________________ugly__________________heavy__________________excited__________________pretty__________________interesting__________________delicious__________________beautiful__________________expensive__________________二、Writetheanswers.（根据题意，写出答案。）1.Theblackdogis_____(thin)thanthewhitedog.2.Thisballoonis_____(big)thanyours.3.Mybagis_____(heavy)thanyours.4.Johnis_____(strong)thanMike.5.Iam_____(short)thanLucy.三、用所给词的正确形式填空，每词用一次。younglongtallheavyoldthin1.Monkey’stailis______________thantherabbit’stail.2.Dickis11yearsold.Ninais12yearsold.Dickis______________thanNina.3.I’m140cm______________.4.I’m40kg.You’re42kg.I’m______________thanyou.5.How______________areyou?I’m45kg.四、选择填空。1、Howheavyareyou?______________A、I’m48yearsold.B、I’m48kg.C、I’m48cm.2、Tomis120cm.Jackis__________thanhim.A、tallB、tallerC、heavier3、Howheavyisthewhale?______________A、It’sstrongB、It’sheavierC、It’s3600kg.