1)-ful, beautiful, wonderful, helpful, truthful

2)-ous, dangerous, generous, courageous, various

3)-ent, violent,

4.表示由某种物质形成,制成或生产的含义

1)-en, wooden, golden, woolen

2)-ous, gaseous

3)-fic, scientific

5.表示方向的含义

1)-ern, eastern, western

2)-ward, downward, forward