湘少版六年级英语上册Unit9(课时2)This bird is bigger than the f

smallbigbiggerbiggest小的大的更大的最大的smallbigbiggerbiggest小的大的更大的最大的big大的small小的smaller更小的smallest最小的tallershorttalltallestshortershortestlonglongerlongest在形容词后面（adj）加上“er”就变成形容词的比较级在形容词后面（adj）加上“est”就变成形容词的最高级。有部分形容词要双写最后一个字母再加”er”或“est”。small小的smaller更小的soft轻声的softer更轻声的loud大声的louder更大声的big大的bigger更大的原形small小的smaller更小的tall高的taller更高的short矮的shorter更矮的big大的bigger更大的比较级最高级smallest最小的tallest最高的shortest最矮的biggest最大的bigbiggerbiggestsmallsmallersmallesttalltallertallestshortshortershortestlonglongerlongestAis…erthanB.ABA比B更…AislongerthanB.Thesecondisbiggerthanthefirst.ABBisbiggerthanA.onefirst(1st)基数词变序数词twosecond(2nd)threethird(3rd)fourfourth(4th)fivefifth(5th)seveneightninetenthtenseventheighthninth(7th)(8th)(9th)(10th)sixsixth(6th)smallsmallersmallestthefirstballthesecondballthethirdball…is…erthan…longlongerlongestABCCisthelongest.C是最长的。Thesecondbirdisbiggerthanthefirstbird.Thethirdbirdisthebiggest.birdbigbiggerbiggestsmallsmallersmallesttalltallertallestshortshortershortestlonglongerlongestsmallsmallerbiggestsmallesttallshortlongbigtallershortersmallesttallestshortestlongerlongest