1、单音节词末尾加-er（比较级）,-est（最高级） 【例】 原级 比较级 最高级 great greater greatest small smaller smallest clean cleaner cleanest 2、单音节如以e结尾,只加-r（比较级）,-st（最高级） 【例】 fine finer finest nice nicer nicest wide wider widest 3、闭音节单音节词如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） 【例】 big bigger biggest hot hotter hottest red redder reddest 4、少数以-y,-er,ow,-ble结尾的双音节词,末尾加-er（比较级）,-est（最高级）.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. 【例】 clever cleverer cleverest narrow narrower narrowest able abler ablest easy easier easiest 5、其它双音节和多音节词皆在前面加单词more和most. 【例】 careful more careful most careful difficult more difficult most difficult delicious more delicious most delicious 不规则变化 -原级 比较级 最高级 good/well better best bad worse worst many/much more most little less least far farther/further farthest/furthest
例如：Compared with DoD's plan, the options would yield greater improvemnets in reception and would yield improvements sooner.A theoretical framework is provided, consisting of negative reinforcing feedback loops that act as drivers behind future industry change.
a1：Our experimenntal data are not precise because the devices are in poor condition.（含糊）a2：Our experimenntal data are not precise because the devices are not working properly.（具体）b1:The results seem to be satisfactory.（含糊）b2:We are satisfied with the result that . （具体）
爱吃牛蛙的鱼
