小学形容词的比较级和最高级教材课程.ppt

tall taller tallest The little boy is tall. PCJ is taller than him. YM is the tallest of them. 形容词副词的比较级,最高级 原级（positive degree) 比较级 ( comparative degree) 3. 最高级 (superlative degree) 一.规则变化 1.一般直接加 -er/-est; eg. tall long 2.以不发音的e结尾时加-r/-est; eg. late large 3.以“辅音字母+y”结尾的双音节词,变y为i加-r/-est; eg. easy happy 4.以“辅元辅”结尾的词，双写末尾辅音 加-r/-est; eg. fat thin 5. 以er结尾，直接加 -er/-est; eg. clever 6.多音节词和部分双音节词词前加 more/most. eg. careful beautiful Write out the Comparative Degrees（比较级）and the Superlative Degrees（最高级）of these words. big nice thin easy cheap late thirsty safe young light carefully clever heavy early happy easily beautiful interesting 二.不规则变化 原级： 1.表示两者相等时 A+be+as+原级+as+B eg.The coat is as beautiful as that one. 2.表示两者不相等时 A+be+not+as/so+原级+as+B eg.The pig is not so heavy as the horse. Usages 注意: 3.强调倍数时用（A是B的几倍） A+be+倍数+as+原级+as+B eg. The classroom is twice as big as the office. The house is three times as large as the kitchen. 比较级用法： 1. A+be+比较级+than+B 表示A比B...... eg.The man is taller than that woman. 2.比较级+and+比较级 表示“越来越.......”,多音节词可用“more and more... eg. fatter and fatter taller and taller 3.the+比较级，the+比较级 表示越...就越... eg. The sooner,the better. The more ,the better. 6.the+比较级+of the two 表示“两者中比较...的一个 eg.The girl is the taller of the two. 最高级： 1.三者或三者以上用最高级，带有of...或in....短语的句子用最高级 eg.He is the tallest student in his class. 2.one of the +最高级+名词复数，表示最...之一 eg.Shanghai is one of the most beautiful cities in China. 3.形容词最高级前一般用定冠词the，但形容词最高级前有物主代词时，则不用定冠词 eg. Today is my happiest day. Changjiang is the longest river in China.