1、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-quietly polite-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-easily happy-happily heavy-heavily noisy-noisily ；healthy-healthily
2、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-gently possible-possibly probableprobably; responsibleresponsibly ; comfortable-comfortablygentle-gently simple-simplycapable有能力的 simple简单的 gentle温柔enjoyable 快乐的 fashionable 时髦的
3、 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-easily happy-happily heavy-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y full-fully 4.
4、以ic结尾的词 加ally automatic-automatically ；energetic-energetically 5.其他形容词 均加ly careful-carefully ；glad-gladly6.本身既是形容词也是副词，无需改变fast-fast early-early high-high hard-hard late-late far-far wide-wide alone-alone、7.虽然以ly结尾，但却是形容词，不能直接用来修饰动词friendly lively lovely lonely likely8.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)hard副词容易写成hardly, hardly意思为“几乎不”，与hard无任何关系9.形容词变副词通常是加ly,其变化有规律可循,请记住以下口诀： 一般直接加，“元e”去e加，“辅y”改i加，“le”结尾e改y。 分别举例如下： quickquickly, truetruly, happyhappily, possiblepossibly.3
