我(I)用am,你(you)用are,is跟着他(he),她(she),它(it);单数名词用is,复数名词全用are。 I 用_ She用 _ It用 _ he用 _they用 _ We用 _ you用 _2、 在横线上用be动词的适当形式am/ is/ are填空1.I_fine. 2.I_a student. 3.How old _ you? 4._you a teacher? 5.She_ a student. 6.He_not a teacher.7.It_a dog. 8. She _ my sister. 9.This_myteacher,MissWang.10.We_fromChina. 11.They_friends 12. Where _ you?13. Jane and Tom _my friends. 14