三单变化规则

. 动词三单变化规则与练习

•变化规则：

•1．一般情况下，直接加-s，如：play-plays, walk-walks

•2．以s，x，ch，sh及部分o结尾，加-es，如：pass-passes,fix—fixes, wash-washes, watch-watches, go-goes，do-does

•3．以“辅音字母+y”结尾，去y为i, 再加-es，如：study-studies

• fly--flies

练习：

写出下列动词的三单数形式

1. work_______

2. watch_________

3. clean________

4. write_______

5. teach_______

6. wash__________

7. have_______

8.read________

9. go__________

10. do__________

11. fly________

12. study_______

13.She ---------- (watch) TV.

I ---------- (watch) TV.

答案：

1.

1.works

2. watches

3. cleans

4. writes

5. teaches

6. washes

7. have__has_____

8.reads

9. goes

10. does

11. fly___flies_____

12. study_studies______

13.She watches(watch) TV.

I watch(watch) TV.

.