Identify people: Is this /that ...? Yes, it is. /No,it isn't.

　　Are these /those ...? Yes, they are. /No, they aren't.

　　4. Introduction:（讲解两种问法回答方式的不同）

　　Isthis your brother? Yes, it is. / no itisn't.

　　IsTom your brother? Yes, he is. / no, heisn't.

　　5. Summary

　　6. Practice: 1c: Pairwork: Take turns to talk about Dave'sfamily.

　　Practice the drill "This/That is... These/Those are..." in pairs withyour partners.

　　 (The teacher asks students to practice withtheir partners.)

　　7. Practice:

　　(1)Give 6 minutes for the students to finish 2a and 2b in the textbook.

　　(2)2c: Pairwork: Ask about the people in the picture.

　　Use the drill: Is this /that ...? Yes, it is. /No, it isn't.

　　Are these /those ...? Yes, theyare. /No, they aren't.

　　(The teacher asks students to practice withtheir partners.)

　　8. Give 3 minutes for the students to finish 3a: Fill in the blanks with thewords from the box.

　　9. Practice on PPT.

　　 Step Four: Grammar

　　· 缩写

　　1. Introduction:

that's是that is的缩写形式。当人称代词、指示代词及疑问词与be动词(am, is, are)等连用时，为了简便常用缩写。