Thiseste, esta, isto. Use this para se referir a algo perto de você.

Thatesse, essa, isso, aquele, aquela, aquilo. Use that para se referir a algo que esteja distante de você. 

Esses pronomes possuem plurais irregulares: o plural de this é these.o plural de that é those. 

                                          

This is classroom

That is blackboard

   

* Observe as imagens e clique na frase correta.

                                                                                       

    
a) This is a ball.[R]
b) That is a ball.[R]

a) This is a flower.[R]
b) That i a flower.  [R] 

a) That is a doll. [R]
b) this is a doll.  [R]

                                                                    

a) This is a house.[R]
b) That is a house.[R]