动词变名词：
1.在词尾加er,r ,双写加er 或or:
A.play -player,sing -singer,wait - waiter ,find-finder,
B.write - writer,drive - driver,come - comer,explore -explorerdance- dancer
C.run -runner,win- winner,rob -robber,traval - travaller
D.visit -visitor,invent -inventor
2.在词尾加ing:
build -building,draw -drawing,end -ending,begin -beginning,
swim -swimming,skate-skating,feel -feeling,say -saying,
mean - meaning,cross- crossing,surf- surfing,paint -painting
3.在词尾加ion 或去e加ion:
A.decide - decision,describe -description,produce- production,
celebrate- celebration,pronounce-pronunciation,decorate - decoration
graduate -graduation,frustrate- frustration,pollute- pollution
contribute -contribution,congratulate -congratulation,
educate - education,organize- orgnization,donate- donation,
appreciate - appreciation,operate -operation,invite- invitation
B.discuss -discussion,invent -invention,attract -attraction
impress -impression,inject - injection,instruct- instruction
4.其它：
know -knowledge,please-pleasure,enjoy- enjoyment,
practise -practice,die-death,succeed -success,weigh -weight,
sit -deat,change -chance,enter -entrance,fly - flight,
rob -robbery,discover -discovery,faile- failure,appear -appearance,
breathe -breath
形容词变名词：
1.可以去掉y
snowy-snow sunny-sun cloudy-cloud rainy-rain windy-wind
2.去掉ly
friendly-friend
3.在词尾加ness
ill -illness happy- happiness dark-darkness
