12.　 knife----knives(复数形式)

11.　 We arein the same school, but in different grades.我们在同一所学校，但不在同一个班级。

same 必须与定冠词 the 连用， 后跟名词的单数

different 是same的反义词“不同的，有差的”，不与the 连用，后跟名词的复数形式。

10.　 She is a student, too.她也是个学生。 too　 也，置于句末，用逗号隔开。

9.　　　 I’m thirteen years old = I’m thirteen.

8.　　 Look, she has a small face, ↗big eyes ↗and a small nose.↘(语音语调见P120)

7.　　　 Your face is long = You have a long face.　 His hair is short = He has short hair

6.　　　 Does he have long hair?　 Yes, he does / No, he doesn’t

5.　　　 Michael, who is your favorite movie star? 谁是你最喜欢的电影明星？

4.　　　 you’re right. 你说对了。

3.　　　 She has long hair.　 hair 是不可数名词