第二课时,Where is the book,Its _ the desk,Lets review,Where is the chair,Its _ the desk,Lets review,Where is the cat,Its _ the desk,Lets review,It is big. It is black or green. It is in front of our classroom. Teacher can write something on it.What is it,blackboard,Lets learn,There are bright. Theyre long and thin. Theyre above the classroom. Therere twelve of them in our classroom. What are they,light,Lets learn,We have two in our classroom. Theyre in the wall. We can open and close them.