形容词变副词的规则： 一、 在形容词词尾直接加-ly。如:real-really;helpful-helpfully;careful-carefully;hopeful-hopefully;slow-slowly;quick-quickly;quiet-quietlypolite-politely,wide-widely 二、以辅音字母加y结尾的形容词要变y为i,然后再加-ly。如:busy-busily;angry-angrily;easy-easilyhappy-happilyheavy-heavilynoisy----noisily；healthy----healthily naughty,pretty,thirsty,lazy, 三、 以-ue结尾的形容词要先去掉e,然后再加-y：如:true-truly； 四、 以le结尾的形容词，去e加y变成副词： terrible-terribly;;gentle-gentlypossible-possiblyprobable—probably;responsible—responsibly;comfortable----comfortably gentle----gentlysimple----simply capable有能力的simple简单的gentle温柔enjoyable快乐的 fashionable时髦的enjoyable快乐的comfortable舒服的,舒适的 lovable可爱的washable可洗的,耐洗的suitable适当的,相配的 lovable可爱的suitable适当的,相配的 五、另外,副词还可以由形容词加前缀a-得来,如:loud(adj.)-aloud(adv.) 注意： 1.多音节y结尾的词将y改为i后加ly easy-easilyhappy-happilyheavy-heavily 2.单音节y结尾的词直接加ly gay-gayly(gaily)；sly-slyly(slily) 3.以ll结尾的词只加yfull-fully 4.以ic结尾的词加ally automatic-automatically；energetic-energetically 5.其他形容词均加lycareful-carefully；glad-gladly 6.本身既是形容词也是副词，无需改变 fast----fastearly----earlyhigh----highhard----hardlate----latefar----farwide----widealone----alone、 7.虽然以ly结尾，但却是形容词，不能直接用来修饰动词 friendlylivelylovelylonelylikely 8.有些形容词本身即为副词，同时也有加ly的副词形式。但加不加ly意思不一样，使用时需注意 wide(形容词，宽阔的，睁大的)----wide(副词，睁大地)/widely(副词，广泛地) high(形容词，高的)----high(副词，高地)/highly(副词，高度地) 本文来源：https://www.wddqw.com/doc/2dbbf3c6ce22bcd126fff705cc17552707225ecb.html