小学英语比较级课件.ppt

Unit 5,形容词/副词比较级变化规则,一般在词尾加-er,taller longer older,以字母e结尾，直接加-r,larger nicer,以重读闭音节结尾的，如末尾只有一个辅音字母，应先双写该字母，再加-er,thinner bigger hotter redder,以“辅音字母+-y”结尾的，先把y变成i，再加-er,angrier easier busier,写出下列单词的比较级和最高级,big tall nice good long easy young hot,bigger biggest taller tallest nicer nicest better best longer longest easier easiest younger youngest hotter hottest,The dog is bigger than the cat.,The elephant is the biggest.,The boy is younger than the man.,The baby is the youngest.,big,bigger,biggest,young younger,youngest,Jim,Li Lei,Tom,Li Lei is taller than Tom.,Jim is the tallest.,￥30,￥20,￥10,The yellow coat is cheaper than the purple one.,The brown coat is the cheapest,The dog is bigger than the mouse,The boy is younger than the man.,Li Lei is taller than Tom.,The yellow coat is cheaper than the purple one.,Conclusion,A + be + 比较级 + than +B,形容词比较级句式的结构：,Conclusion,The horse is the biggest. The baby is the youngest. The brown coat is the cheapest. Jim is the tallest in our class.,主语 + be + the + 最高级 + of / in.,形容词最高级句式的结构：,￥30,￥20,￥10,Tom,Li Lei,Jim,young cheap tall,Jim is. fat Li Lei. Tom is .,fatter,The fattest,Exercise,The blue car is nice. The red car the blue car.(红车比蓝车好看） The colour car. （彩色车最好看）,is nicer than,is the nicest,