英语的句子成分大体上有以下:
1.主语:TomiswatchingTVnow.Tom就是主语.
2.谓语:TheystudyEnglishhard.stud是谓语.y
3.宾语:Iplaybasketballeveryafternoon.play就是宾语.
4.定语:Maryboughtapen.pen是宾语.
5.状语:Heisreadingabookcarefullyintheroomnow.carefully方式状语,intheroom地点状语,now时间状语.
6.表语:Theyarestudents.They是主语,are是连系动词,students就是表语.
7.补语:
Thebosstoldtheworkerstobecareful.tobecareful是宾语theworkers的补语,叫宾语补足语,简称宾补.
Theworkersweremadetowork12hoursaday.towork12hoursaday是主语theworkers的补语,叫主语补足语,简称主补.