strong的副词形式是strongly.名词形式是strength.strongly:adv.强烈地;坚决地;大力地;(气味)浓烈地。strength:n.力量;强度;力气;体力;毅力;坚强决...
七、形容词→副词
1. 形容词+ -ly
beautiful→beautifully
careful→carefully
certain→certainly
cheap→cheaply
clear→clearly
final→finally
great→greatly
late→lately
loud→loudly
normal→normally
polite→politely
quick→quickly
quiet→quietly
recent→recently
safe→safely
serious→seriously
slow→slowly
strong→strongly
sudden→suddenly
usual→usually
wide→widely
wonderful→wonderfully
2. 形容词-y结尾y变i+ -ly
angry→angrily
easy→easily
happy→happily
heavy→heavily
lucky→luckily
3. 形容词-e结尾去e+ -ly
comfortable→comfortably
possible→possibly
probable→probably
simple→simply
terrible→terribly
true→truly
（to be continued）